Compare commits
2 Commits
master
...
private-co
Author | SHA1 | Date | |
---|---|---|---|
|
6bb2fcdbfd | ||
|
2b39b0257a |
1
.cvsignore
Normal file
1
.cvsignore
Normal file
@ -0,0 +1 @@
|
||||
openssh-4.3p2-noacss.tar.bz2
|
47
.gitignore
vendored
47
.gitignore
vendored
@ -1,47 +0,0 @@
|
||||
openssh-5.5p1-noacss.tar.bz2
|
||||
pam_ssh_agent_auth-0.9.2.tar.bz2
|
||||
/openssh-5.6p1-noacss.tar.bz2
|
||||
/pam_ssh_agent_auth-0.9.2.tar.bz2
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||||
/openssh-5.8p1-noacss.tar.bz2
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||||
/openssh-5.8p2-noacss.tar.bz2
|
||||
/openssh-5.9p1-noacss.tar.bz2
|
||||
/pam_ssh_agent_auth-0.9.3.tar.bz2
|
||||
/openssh-6.0p1-noacss.tar.bz2
|
||||
/openssh-6.1p1-noacss.tar.bz2
|
||||
/openssh-6.2p1.tar.gz
|
||||
/openssh-6.2p2.tar.gz
|
||||
/openssh-6.3p1.tar.gz
|
||||
/openssh-6.4p1.tar.gz
|
||||
/openssh-6.6p1.tar.gz
|
||||
/openssh-6.7p1.tar.gz
|
||||
/openssh-6.8p1.tar.gz
|
||||
/openssh-6.9p1.tar.gz
|
||||
/openssh-7.0p1.tar.gz
|
||||
/openssh-7.1p1.tar.gz
|
||||
/openssh-7.1p2.tar.gz
|
||||
/pam_ssh_agent_auth-0.10.2.tar.bz2
|
||||
/openssh-7.2p1.tar.gz
|
||||
/openssh-7.2p2.tar.gz
|
||||
/openssh-7.3p1.tar.gz
|
||||
/openssh-7.4p1.tar.gz
|
||||
/pam_ssh_agent_auth-0.10.3.tar.bz2
|
||||
/openssh-7.5p1.tar.gz
|
||||
/openssh-7.6p1.tar.gz
|
||||
/openssh-7.7p1.tar.gz
|
||||
/openssh-7.7p1.tar.gz.asc
|
||||
/DJM-GPG-KEY.gpg
|
||||
/openssh-7.8p1.tar.gz
|
||||
/openssh-7.8p1.tar.gz.asc
|
||||
/openssh-7.9p1.tar.gz
|
||||
/openssh-7.9p1.tar.gz.asc
|
||||
/openssh-8.0p1.tar.gz
|
||||
/openssh-8.0p1.tar.gz.asc
|
||||
/openssh-8.1p1.tar.gz
|
||||
/openssh-8.1p1.tar.gz.asc
|
||||
/openssh-8.2p1.tar.gz
|
||||
/openssh-8.2p1.tar.gz.asc
|
||||
/openssh-8.3p1.tar.gz
|
||||
/openssh-8.3p1.tar.gz.asc
|
||||
/openssh-8.4p1.tar.gz
|
||||
/openssh-8.4p1.tar.gz.asc
|
||||
/pam_ssh_agent_auth-0.10.4.tar.gz
|
6
Makefile
Normal file
6
Makefile
Normal file
@ -0,0 +1,6 @@
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||||
# Makefile for source rpm: openssh
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# $Id$
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NAME := openssh
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SPECFILE = $(firstword $(wildcard *.spec))
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include ../common/Makefile.common
|
16
openssh-3.8.1p1-krb5-config.patch
Normal file
16
openssh-3.8.1p1-krb5-config.patch
Normal file
@ -0,0 +1,16 @@
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Search the path for krb5-config if the prefix wasn't specified.
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--- openssh-3.8p1/configure.ac 2004-02-26 21:17:12.000000000 -0500
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+++ openssh-3.8p1/configure.ac 2004-02-26 21:17:06.000000000 -0500
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@@ -2077,8 +2077,10 @@
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KRB5_MSG="yes"
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AC_MSG_CHECKING(for krb5-config)
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- if test -x $KRB5ROOT/bin/krb5-config ; then
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- KRB5CONF=$KRB5ROOT/bin/krb5-config
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+ AC_PATH_PROG([KRB5CONF],[krb5-config],
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+ [$KRB5ROOT/bin/krb5-config],
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+ [$KRB5ROOT/bin:$PATH])
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+ if test -x $KRB5CONF ; then
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AC_MSG_RESULT($KRB5CONF)
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|
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AC_MSG_CHECKING(for gssapi support)
|
26
openssh-3.8.1p1-skip-initial.patch
Normal file
26
openssh-3.8.1p1-skip-initial.patch
Normal file
@ -0,0 +1,26 @@
|
||||
Skip the initial empty-password check if permit_empty_passwd is disabled. This
|
||||
doesn't change the timing profiles of the host because the additional condition
|
||||
check which can short-circuit the call to pam_authenticate() has no dependency
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on the identity of the user who is being authenticated.
|
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--- openssh-3.8p1/auth1.c 2004-02-26 21:05:25.000000000 -0500
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+++ openssh-3.8p1/auth1.c 2004-02-26 21:05:20.000000000 -0500
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@@ -76,7 +76,7 @@
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authctxt->valid ? "" : "illegal user ", authctxt->user);
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/* If the user has no password, accept authentication immediately. */
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- if (options.password_authentication &&
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+ if (options.permit_empty_passwd && options.password_authentication &&
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#ifdef KRB5
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(!options.kerberos_authentication || options.kerberos_or_local_passwd) &&
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#endif
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--- openssh-3.8p1/auth2-none.c 2004-02-26 21:07:34.000000000 -0500
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+++ openssh-3.8p1/auth2-none.c 2004-02-26 21:07:28.000000000 -0500
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@@ -100,7 +100,7 @@
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if (check_nt_auth(1, authctxt->pw) == 0)
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return(0);
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#endif
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- if (options.password_authentication)
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+ if (options.permit_empty_passwd && options.password_authentication)
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return (PRIVSEP(auth_password(authctxt, "")));
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return (0);
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||||
}
|
11
openssh-3.9p1-askpass-keep-above.patch
Normal file
11
openssh-3.9p1-askpass-keep-above.patch
Normal file
@ -0,0 +1,11 @@
|
||||
--- openssh-3.9p1/contrib/gnome-ssh-askpass2.c.keep-above 2003-11-21 13:48:56.000000000 +0100
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+++ openssh-3.9p1/contrib/gnome-ssh-askpass2.c 2005-02-08 08:44:02.099739294 +0100
|
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@@ -119,6 +119,8 @@
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g_signal_connect(G_OBJECT(entry), "activate",
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G_CALLBACK(ok_dialog), dialog);
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+ gtk_window_set_keep_above(GTK_WINDOW(dialog), TRUE);
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+
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||||
/* Grab focus */
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gtk_widget_show_now(dialog);
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if (grab_pointer) {
|
53
openssh-3.9p1-log-in-chroot.patch
Normal file
53
openssh-3.9p1-log-in-chroot.patch
Normal file
@ -0,0 +1,53 @@
|
||||
--- openssh-3.9p1/log.h.log-chroot 2006-02-22 10:54:04.000000000 +0100
|
||||
+++ openssh-3.9p1/log.h 2006-02-22 10:53:29.000000000 +0100
|
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@@ -63,4 +63,6 @@
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void do_log(LogLevel, const char *, va_list);
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void cleanup_exit(int) __dead;
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+
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+void open_log(void);
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#endif
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--- openssh-3.9p1/log.c.log-chroot 2006-02-22 13:29:48.000000000 +0100
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+++ openssh-3.9p1/log.c 2006-02-22 10:56:01.000000000 +0100
|
||||
@@ -48,6 +48,7 @@
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static int log_on_stderr = 1;
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static int log_facility = LOG_AUTH;
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static char *argv0;
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+static int log_fd_keep;
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|
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extern char *__progname;
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|
||||
@@ -330,9 +331,20 @@
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syslog_r(pri, &sdata, "%.500s", fmtbuf);
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closelog_r(&sdata);
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||||
#else
|
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+ if (!log_fd_keep) {
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openlog(argv0 ? argv0 : __progname, LOG_PID, log_facility);
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||||
+ }
|
||||
syslog(pri, "%.500s", fmtbuf);
|
||||
+ if (!log_fd_keep) {
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closelog();
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||||
+ }
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#endif
|
||||
}
|
||||
}
|
||||
+
|
||||
+void
|
||||
+open_log(void)
|
||||
+{
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||||
+ openlog(argv0 ? argv0 : __progname, LOG_PID|LOG_NDELAY, log_facility);
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||||
+ log_fd_keep = 1;
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||||
+}
|
||||
--- openssh-3.9p1/sshd.c.log-chroot 2006-01-11 13:42:32.000000000 +0100
|
||||
+++ openssh-3.9p1/sshd.c 2006-02-22 18:58:24.000000000 +0100
|
||||
@@ -565,6 +565,10 @@
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||||
memset(pw->pw_passwd, 0, strlen(pw->pw_passwd));
|
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endpwent();
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||||
|
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+ /* Open the syslog permanently so the chrooted process still
|
||||
+ can write to syslog. */
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+ open_log();
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+
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||||
/* Change our root directory */
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if (chroot(_PATH_PRIVSEP_CHROOT_DIR) == -1)
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fatal("chroot(\"%s\"): %s", _PATH_PRIVSEP_CHROOT_DIR,
|
12
openssh-3.9p1-skip-used.patch
Normal file
12
openssh-3.9p1-skip-used.patch
Normal file
@ -0,0 +1,12 @@
|
||||
--- openssh-3.9p1/channels.c.skip-used 2005-07-08 22:42:35.000000000 +0200
|
||||
+++ openssh-3.9p1/channels.c 2005-07-25 21:34:29.000000000 +0200
|
||||
@@ -2653,9 +2653,6 @@
|
||||
debug2("bind port %d: %.100s", port, strerror(errno));
|
||||
close(sock);
|
||||
|
||||
- if (ai->ai_next)
|
||||
- continue;
|
||||
-
|
||||
for (n = 0; n < num_socks; n++) {
|
||||
close(socks[n]);
|
||||
}
|
7
openssh-3.9p1.tar.gz.sig
Normal file
7
openssh-3.9p1.tar.gz.sig
Normal file
@ -0,0 +1,7 @@
|
||||
-----BEGIN PGP SIGNATURE-----
|
||||
Version: GnuPG v1.2.2 (OpenBSD)
|
||||
|
||||
iD8DBQBBIgAxzo7LA4b/nEgRArlqAJ0UhIfcfbz+oAxn8AsiOeHBVMwFXwCgkXcX
|
||||
hxmfq8nv/+hpiid1j9lAUx8=
|
||||
=P4zN
|
||||
-----END PGP SIGNATURE-----
|
13
openssh-4.0p1-exit-deadlock.patch
Normal file
13
openssh-4.0p1-exit-deadlock.patch
Normal file
@ -0,0 +1,13 @@
|
||||
--- openssh-4.0p1/channels.c.exit-deadlock 2005-03-01 11:24:33.000000000 +0100
|
||||
+++ openssh-4.0p1/channels.c 2005-04-05 22:25:15.197226237 +0200
|
||||
@@ -1403,6 +1403,10 @@
|
||||
u_int dlen;
|
||||
int len;
|
||||
|
||||
+ if(c->wfd != -1 && buffer_len(&c->output) > 0 && c->ostate == CHAN_OUTPUT_WAIT_DRAIN) {
|
||||
+ debug("channel %d: forcing write", c->self);
|
||||
+ FD_SET(c->wfd, writeset);
|
||||
+ }
|
||||
/* Send buffered output data to the socket. */
|
||||
if (c->wfd != -1 &&
|
||||
FD_ISSET(c->wfd, writeset) &&
|
78
openssh-4.2p1-askpass-progress.patch
Normal file
78
openssh-4.2p1-askpass-progress.patch
Normal file
@ -0,0 +1,78 @@
|
||||
--- openssh-4.2p1/contrib/gnome-ssh-askpass2.c.progress 2005-11-28 11:11:24.000000000 +0100
|
||||
+++ openssh-4.2p1/contrib/gnome-ssh-askpass2.c 2005-12-20 15:22:42.000000000 +0100
|
||||
@@ -53,6 +53,7 @@
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
#include <X11/Xlib.h>
|
||||
+#include <glib.h>
|
||||
#include <gtk/gtk.h>
|
||||
#include <gdk/gdkx.h>
|
||||
|
||||
@@ -83,13 +84,24 @@
|
||||
gtk_dialog_response(GTK_DIALOG(dialog), GTK_RESPONSE_OK);
|
||||
}
|
||||
|
||||
+static void
|
||||
+move_progress(GtkWidget *entry, gpointer progress)
|
||||
+{
|
||||
+ gdouble step;
|
||||
+ g_return_if_fail(GTK_IS_PROGRESS_BAR(progress));
|
||||
+
|
||||
+ step = g_random_double_range(0.03, 0.1);
|
||||
+ gtk_progress_bar_set_pulse_step(GTK_PROGRESS_BAR(progress), step);
|
||||
+ gtk_progress_bar_pulse(GTK_PROGRESS_BAR(progress));
|
||||
+}
|
||||
+
|
||||
static int
|
||||
passphrase_dialog(char *message)
|
||||
{
|
||||
const char *failed;
|
||||
char *passphrase, *local;
|
||||
int result, grab_tries, grab_server, grab_pointer;
|
||||
- GtkWidget *dialog, *entry;
|
||||
+ GtkWidget *dialog, *entry, *progress, *hbox;
|
||||
GdkGrabStatus status;
|
||||
|
||||
grab_server = (getenv("GNOME_SSH_ASKPASS_GRAB_SERVER") != NULL);
|
||||
@@ -102,13 +114,31 @@
|
||||
"%s",
|
||||
message);
|
||||
|
||||
+ hbox = gtk_hbox_new(FALSE, 0);
|
||||
+ gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox, FALSE,
|
||||
+ FALSE, 0);
|
||||
+ gtk_widget_show(hbox);
|
||||
+
|
||||
entry = gtk_entry_new();
|
||||
- gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), entry, FALSE,
|
||||
+ gtk_box_pack_start(GTK_BOX(hbox), entry, TRUE,
|
||||
FALSE, 0);
|
||||
+ gtk_entry_set_width_chars(GTK_ENTRY(entry), 2);
|
||||
gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE);
|
||||
gtk_widget_grab_focus(entry);
|
||||
gtk_widget_show(entry);
|
||||
|
||||
+ hbox = gtk_hbox_new(FALSE, 0);
|
||||
+ gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox, FALSE,
|
||||
+ FALSE, 8);
|
||||
+ gtk_widget_show(hbox);
|
||||
+
|
||||
+ progress = gtk_progress_bar_new();
|
||||
+
|
||||
+ gtk_progress_bar_set_text(GTK_PROGRESS_BAR(progress), "Passphrase length hidden intentionally");
|
||||
+ gtk_box_pack_start(GTK_BOX(hbox), progress, TRUE,
|
||||
+ TRUE, 5);
|
||||
+ gtk_widget_show(progress);
|
||||
+
|
||||
gtk_window_set_title(GTK_WINDOW(dialog), "OpenSSH");
|
||||
gtk_window_set_position (GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
|
||||
gtk_label_set_line_wrap(GTK_LABEL((GTK_MESSAGE_DIALOG(dialog))->label),
|
||||
@@ -118,6 +148,8 @@
|
||||
gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_OK);
|
||||
g_signal_connect(G_OBJECT(entry), "activate",
|
||||
G_CALLBACK(ok_dialog), dialog);
|
||||
+ g_signal_connect(G_OBJECT(entry), "changed",
|
||||
+ G_CALLBACK(move_progress), progress);
|
||||
|
||||
gtk_window_set_keep_above(GTK_WINDOW(dialog), TRUE);
|
||||
|
16
openssh-4.2p1-pam-no-stack.patch
Normal file
16
openssh-4.2p1-pam-no-stack.patch
Normal file
@ -0,0 +1,16 @@
|
||||
--- openssh-4.2p1/contrib/redhat/sshd.pam.stack 2004-07-21 03:01:41.000000000 +0200
|
||||
+++ openssh-4.2p1/contrib/redhat/sshd.pam 2005-10-07 14:18:50.000000000 +0200
|
||||
@@ -1,6 +1,8 @@
|
||||
#%PAM-1.0
|
||||
-auth required pam_stack.so service=system-auth
|
||||
-auth required pam_nologin.so
|
||||
-account required pam_stack.so service=system-auth
|
||||
-password required pam_stack.so service=system-auth
|
||||
-session required pam_stack.so service=system-auth
|
||||
+auth include system-auth
|
||||
+account required pam_nologin.so
|
||||
+account include system-auth
|
||||
+password include system-auth
|
||||
+session optional pam_keyinit.so force revoke
|
||||
+session include system-auth
|
||||
+session required pam_loginuid.so
|
15
openssh-4.3p1-fromto-remote.patch
Normal file
15
openssh-4.3p1-fromto-remote.patch
Normal file
@ -0,0 +1,15 @@
|
||||
--- openssh-4.3p2/scp.c.fromto-remote 2006-01-31 12:11:38.000000000 +0100
|
||||
+++ openssh-4.3p2/scp.c 2006-04-14 10:09:56.000000000 +0200
|
||||
@@ -446,7 +446,11 @@
|
||||
addargs(&alist, "-v");
|
||||
addargs(&alist, "-x");
|
||||
addargs(&alist, "-oClearAllForwardings yes");
|
||||
- addargs(&alist, "-n");
|
||||
+ if (isatty(fileno(stdin))) {
|
||||
+ addargs(&alist, "-t");
|
||||
+ } else {
|
||||
+ addargs(&alist, "-n");
|
||||
+ }
|
||||
|
||||
*src++ = 0;
|
||||
if (*src == 0)
|
59
openssh-4.3p2-allow-ip-opts.patch
Normal file
59
openssh-4.3p2-allow-ip-opts.patch
Normal file
@ -0,0 +1,59 @@
|
||||
From: Paul Moore <paul.moore@hp.com>
|
||||
Subject: OpenSSH: fix option handling on incoming connections
|
||||
|
||||
OpenSSH rejects incoming connections if any IP options are present when the
|
||||
comments state that they are only concerned with source routing options. This
|
||||
connection rejection causes problems with CIPSO which uses IP options to tag
|
||||
packets with security attributes.
|
||||
|
||||
This patch modifies the check_ip_options() function to only fail if loose or
|
||||
strict source routing options are present, all other options are allowed.
|
||||
|
||||
Signed-off-by: Paul Moore <paul.moore@hp.com>
|
||||
|
||||
---
|
||||
canohost.c | 23 +++++++++++++++++------
|
||||
1 file changed, 17 insertions(+), 6 deletions(-)
|
||||
|
||||
Index: openssh-4.3p2/canohost.c
|
||||
===================================================================
|
||||
--- openssh-4.3p2.orig/canohost.c
|
||||
+++ openssh-4.3p2/canohost.c
|
||||
@@ -146,6 +146,7 @@ check_ip_options(int sock, char *ipaddr)
|
||||
u_int i;
|
||||
int ipproto;
|
||||
struct protoent *ip;
|
||||
+ u_int opt_iter;
|
||||
|
||||
if ((ip = getprotobyname("ip")) != NULL)
|
||||
ipproto = ip->p_proto;
|
||||
@@ -154,13 +155,23 @@ check_ip_options(int sock, char *ipaddr)
|
||||
option_size = sizeof(options);
|
||||
if (getsockopt(sock, ipproto, IP_OPTIONS, options,
|
||||
&option_size) >= 0 && option_size != 0) {
|
||||
- text[0] = '\0';
|
||||
- for (i = 0; i < option_size; i++)
|
||||
- snprintf(text + i*3, sizeof(text) - i*3,
|
||||
- " %2.2x", options[i]);
|
||||
- fatal("Connection from %.100s with IP options:%.800s",
|
||||
- ipaddr, text);
|
||||
+ opt_iter = 0;
|
||||
+ do {
|
||||
+ /* Fail, fatally, if we detect either loose or strict
|
||||
+ * source routing options. */
|
||||
+ if (options[opt_iter] == 131 ||
|
||||
+ options[opt_iter] == 137)
|
||||
+ goto fail;
|
||||
+ opt_iter += options[opt_iter + 1] + 2;
|
||||
+ } while (opt_iter < option_size);
|
||||
}
|
||||
+ return;
|
||||
+
|
||||
+fail:
|
||||
+ text[0] = '\0';
|
||||
+ for (i = 0; i < option_size; i++)
|
||||
+ snprintf(text + i*3, sizeof(text) - i*3, " %2.2x", options[i]);
|
||||
+ fatal("Connection from %.100s with IP options:%.800s", ipaddr, text);
|
||||
#endif /* IP_OPTIONS */
|
||||
}
|
||||
|
@ -1,8 +1,7 @@
|
||||
diff -up openssh-7.4p1/contrib/gnome-ssh-askpass2.c.grab-info openssh-7.4p1/contrib/gnome-ssh-askpass2.c
|
||||
--- openssh-7.4p1/contrib/gnome-ssh-askpass2.c.grab-info 2016-12-23 13:31:22.645213115 +0100
|
||||
+++ openssh-7.4p1/contrib/gnome-ssh-askpass2.c 2016-12-23 13:31:40.997216691 +0100
|
||||
@@ -65,9 +65,12 @@ report_failed_grab (GtkWidget *parent_wi
|
||||
err = gtk_message_dialog_new(GTK_WINDOW(parent_window), 0,
|
||||
--- openssh-4.3p2/contrib/gnome-ssh-askpass2.c.grab-info 2006-07-17 15:10:11.000000000 +0200
|
||||
+++ openssh-4.3p2/contrib/gnome-ssh-askpass2.c 2006-07-17 15:25:04.000000000 +0200
|
||||
@@ -65,9 +65,12 @@
|
||||
err = gtk_message_dialog_new(NULL, 0,
|
||||
GTK_MESSAGE_ERROR,
|
||||
GTK_BUTTONS_CLOSE,
|
||||
- "Could not grab %s. "
|
||||
@ -15,5 +14,5 @@ diff -up openssh-7.4p1/contrib/gnome-ssh-askpass2.c.grab-info openssh-7.4p1/cont
|
||||
+ "Either close the application which grabs the %s or "
|
||||
+ "log out and log in again to prevent this from happening.", what, what);
|
||||
gtk_window_set_position(GTK_WINDOW(err), GTK_WIN_POS_CENTER);
|
||||
|
||||
gtk_dialog_run(GTK_DIALOG(err));
|
||||
gtk_label_set_line_wrap(GTK_LABEL((GTK_MESSAGE_DIALOG(err))->label),
|
||||
TRUE);
|
||||
|
11
openssh-4.3p2-no-v6only.patch
Normal file
11
openssh-4.3p2-no-v6only.patch
Normal file
@ -0,0 +1,11 @@
|
||||
--- openssh-4.3p2/channels.c.no-v6only 2006-07-17 15:39:31.000000000 +0200
|
||||
+++ openssh-4.3p2/channels.c 2006-08-08 12:44:51.000000000 +0200
|
||||
@@ -2794,7 +2794,7 @@
|
||||
}
|
||||
}
|
||||
#ifdef IPV6_V6ONLY
|
||||
- if (ai->ai_family == AF_INET6) {
|
||||
+ if (x11_use_localhost && ai->ai_family == AF_INET6) {
|
||||
int on = 1;
|
||||
if (setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on)) < 0)
|
||||
error("setsockopt IPV6_V6ONLY: %.100s", strerror(errno));
|
@ -1,83 +0,0 @@
|
||||
diff -up openssh-7.4p1/contrib/gnome-ssh-askpass2.c.progress openssh-7.4p1/contrib/gnome-ssh-askpass2.c
|
||||
--- openssh-7.4p1/contrib/gnome-ssh-askpass2.c.progress 2016-12-19 05:59:41.000000000 +0100
|
||||
+++ openssh-7.4p1/contrib/gnome-ssh-askpass2.c 2016-12-23 13:31:16.545211926 +0100
|
||||
@@ -53,6 +53,7 @@
|
||||
#include <unistd.h>
|
||||
|
||||
#include <X11/Xlib.h>
|
||||
+#include <glib.h>
|
||||
#include <gtk/gtk.h>
|
||||
#include <gdk/gdkx.h>
|
||||
#include <gdk/gdkkeysyms.h>
|
||||
@@ -81,14 +82,25 @@ ok_dialog(GtkWidget *entry, gpointer dia
|
||||
return 1;
|
||||
}
|
||||
|
||||
+static void
|
||||
+move_progress(GtkWidget *entry, gpointer progress)
|
||||
+{
|
||||
+ gdouble step;
|
||||
+ g_return_if_fail(GTK_IS_PROGRESS_BAR(progress));
|
||||
+
|
||||
+ step = g_random_double_range(0.03, 0.1);
|
||||
+ gtk_progress_bar_set_pulse_step(GTK_PROGRESS_BAR(progress), step);
|
||||
+ gtk_progress_bar_pulse(GTK_PROGRESS_BAR(progress));
|
||||
+}
|
||||
+
|
||||
static int
|
||||
passphrase_dialog(char *message, int prompt_type)
|
||||
{
|
||||
const char *failed;
|
||||
char *passphrase, *local;
|
||||
int result, grab_tries, grab_server, grab_pointer;
|
||||
int buttons, default_response;
|
||||
- GtkWidget *parent_window, *dialog, *entry;
|
||||
+ GtkWidget *parent_window, *dialog, *entry, *progress, *hbox;
|
||||
GdkGrabStatus status;
|
||||
GdkColor fg, bg;
|
||||
int fg_set = 0, bg_set = 0;
|
||||
@@ -104,14 +116,19 @@ passphrase_dialog(char *message)
|
||||
gtk_widget_modify_bg(dialog, GTK_STATE_NORMAL, &bg);
|
||||
|
||||
if (prompt_type == PROMPT_ENTRY || prompt_type == PROMPT_NONE) {
|
||||
+ hbox = gtk_hbox_new(FALSE, 0);
|
||||
+ gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox, FALSE,
|
||||
+ FALSE, 0);
|
||||
+ gtk_widget_show(hbox);
|
||||
+
|
||||
entry = gtk_entry_new();
|
||||
if (fg_set)
|
||||
gtk_widget_modify_fg(entry, GTK_STATE_NORMAL, &fg);
|
||||
if (bg_set)
|
||||
gtk_widget_modify_bg(entry, GTK_STATE_NORMAL, &bg);
|
||||
gtk_box_pack_start(
|
||||
- GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(dialog))),
|
||||
- entry, FALSE, FALSE, 0);
|
||||
+ GTK_BOX(hbox), entry, TRUE, FALSE, 0);
|
||||
+ gtk_entry_set_width_chars(GTK_ENTRY(entry), 2);
|
||||
gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE);
|
||||
gtk_widget_grab_focus(entry);
|
||||
if (prompt_type == PROMPT_ENTRY) {
|
||||
@@ -130,6 +145,22 @@ passphrase_dialog(char *message)
|
||||
g_signal_connect(G_OBJECT(entry), "key_press_event",
|
||||
G_CALLBACK(check_none), dialog);
|
||||
}
|
||||
+
|
||||
+ hbox = gtk_hbox_new(FALSE, 0);
|
||||
+ gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox),
|
||||
+ hbox, FALSE, FALSE, 8);
|
||||
+ gtk_widget_show(hbox);
|
||||
+
|
||||
+ progress = gtk_progress_bar_new();
|
||||
+
|
||||
+ gtk_progress_bar_set_text(GTK_PROGRESS_BAR(progress),
|
||||
+ "Passphrase length hidden intentionally");
|
||||
+ gtk_box_pack_start(GTK_BOX(hbox), progress, TRUE,
|
||||
+ TRUE, 5);
|
||||
+ gtk_widget_show(progress);
|
||||
+ g_signal_connect(G_OBJECT(entry), "changed",
|
||||
+ G_CALLBACK(move_progress), progress);
|
||||
+
|
||||
}
|
||||
|
||||
/* Grab focus */
|
@ -1,12 +0,0 @@
|
||||
diff -up openssh-5.8p2/ssh-keyscan.c.sigpipe openssh-5.8p2/ssh-keyscan.c
|
||||
--- openssh-5.8p2/ssh-keyscan.c.sigpipe 2011-08-23 18:30:33.873025916 +0200
|
||||
+++ openssh-5.8p2/ssh-keyscan.c 2011-08-23 18:32:24.574025362 +0200
|
||||
@@ -715,6 +715,8 @@ main(int argc, char **argv)
|
||||
fdlim_set(maxfd);
|
||||
fdcon = xcalloc(maxfd, sizeof(con));
|
||||
|
||||
+ signal(SIGPIPE, SIG_IGN);
|
||||
+
|
||||
read_wait_nfdset = howmany(maxfd, NFDBITS);
|
||||
read_wait = xcalloc(read_wait_nfdset, sizeof(fd_mask));
|
||||
|
@ -1,24 +0,0 @@
|
||||
diff -up openssh-5.9p0/ssh.1.ipv6man openssh-5.9p0/ssh.1
|
||||
--- openssh-5.9p0/ssh.1.ipv6man 2011-08-05 22:17:32.000000000 +0200
|
||||
+++ openssh-5.9p0/ssh.1 2011-08-31 13:08:34.880024485 +0200
|
||||
@@ -1400,6 +1400,8 @@ manual page for more information.
|
||||
.Nm
|
||||
exits with the exit status of the remote command or with 255
|
||||
if an error occurred.
|
||||
+.Sh IPV6
|
||||
+IPv6 address can be used everywhere where IPv4 address. In all entries must be the IPv6 address enclosed in square brackets. Note: The square brackets are metacharacters for the shell and must be escaped in shell.
|
||||
.Sh SEE ALSO
|
||||
.Xr scp 1 ,
|
||||
.Xr sftp 1 ,
|
||||
diff -up openssh-5.9p0/sshd.8.ipv6man openssh-5.9p0/sshd.8
|
||||
--- openssh-5.9p0/sshd.8.ipv6man 2011-08-05 22:17:32.000000000 +0200
|
||||
+++ openssh-5.9p0/sshd.8 2011-08-31 13:10:34.129039094 +0200
|
||||
@@ -940,6 +940,8 @@ concurrently for different ports, this c
|
||||
started last).
|
||||
The content of this file is not sensitive; it can be world-readable.
|
||||
.El
|
||||
+.Sh IPV6
|
||||
+IPv6 address can be used everywhere where IPv4 address. In all entries must be the IPv6 address enclosed in square brackets. Note: The square brackets are metacharacters for the shell and must be escaped in shell.
|
||||
.Sh SEE ALSO
|
||||
.Xr scp 1 ,
|
||||
.Xr sftp 1 ,
|
@ -1,101 +0,0 @@
|
||||
diff -up openssh-5.9p1/cipher-ctr.c.ctr-evp openssh-5.9p1/cipher-ctr.c
|
||||
--- openssh-5.9p1/cipher-ctr.c.ctr-evp 2012-01-11 09:24:06.000000000 +0100
|
||||
+++ openssh-5.9p1/cipher-ctr.c 2012-01-11 15:54:04.675956600 +0100
|
||||
@@ -38,7 +38,7 @@ void ssh_aes_ctr_iv(EVP_CIPHER_CTX *, in
|
||||
|
||||
struct ssh_aes_ctr_ctx
|
||||
{
|
||||
- AES_KEY aes_ctx;
|
||||
+ EVP_CIPHER_CTX ecbctx;
|
||||
u_char aes_counter[AES_BLOCK_SIZE];
|
||||
};
|
||||
|
||||
@@ -63,21 +63,42 @@ ssh_aes_ctr(EVP_CIPHER_CTX *ctx, u_char
|
||||
{
|
||||
struct ssh_aes_ctr_ctx *c;
|
||||
size_t n = 0;
|
||||
- u_char buf[AES_BLOCK_SIZE];
|
||||
+ u_char ctrbuf[AES_BLOCK_SIZE*256];
|
||||
+ u_char buf[AES_BLOCK_SIZE*256];
|
||||
|
||||
if (len == 0)
|
||||
return (1);
|
||||
if ((c = EVP_CIPHER_CTX_get_app_data(ctx)) == NULL)
|
||||
return (0);
|
||||
|
||||
- while ((len--) > 0) {
|
||||
+ for (; len > 0; len -= sizeof(u_int)) {
|
||||
+ u_int r,a,b;
|
||||
+
|
||||
if (n == 0) {
|
||||
- AES_encrypt(c->aes_counter, buf, &c->aes_ctx);
|
||||
- ssh_ctr_inc(c->aes_counter, AES_BLOCK_SIZE);
|
||||
+ int outl, i, buflen;
|
||||
+
|
||||
+ buflen = MIN(len, sizeof(ctrbuf));
|
||||
+
|
||||
+ for(i = 0; i < buflen; i += AES_BLOCK_SIZE) {
|
||||
+ memcpy(&ctrbuf[i], c->aes_counter, AES_BLOCK_SIZE);
|
||||
+ ssh_ctr_inc(c->aes_counter, AES_BLOCK_SIZE);
|
||||
+ }
|
||||
+
|
||||
+ EVP_EncryptUpdate(&c->ecbctx, buf, &outl,
|
||||
+ ctrbuf, buflen);
|
||||
}
|
||||
- *(dest++) = *(src++) ^ buf[n];
|
||||
- n = (n + 1) % AES_BLOCK_SIZE;
|
||||
+
|
||||
+ memcpy(&a, src, sizeof(a));
|
||||
+ memcpy(&b, &buf[n], sizeof(b));
|
||||
+ r = a ^ b;
|
||||
+ memcpy(dest, &r, sizeof(r));
|
||||
+ src += sizeof(a);
|
||||
+ dest += sizeof(r);
|
||||
+
|
||||
+ n = (n + sizeof(b)) % sizeof(buf);
|
||||
}
|
||||
+ memset(ctrbuf, '\0', sizeof(ctrbuf));
|
||||
+ memset(buf, '\0', sizeof(buf));
|
||||
return (1);
|
||||
}
|
||||
|
||||
@@ -91,9 +112,28 @@ ssh_aes_ctr_init(EVP_CIPHER_CTX *ctx, co
|
||||
c = xmalloc(sizeof(*c));
|
||||
EVP_CIPHER_CTX_set_app_data(ctx, c);
|
||||
}
|
||||
- if (key != NULL)
|
||||
- AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
|
||||
- &c->aes_ctx);
|
||||
+
|
||||
+ EVP_CIPHER_CTX_init(&c->ecbctx);
|
||||
+
|
||||
+ if (key != NULL) {
|
||||
+ const EVP_CIPHER *cipher;
|
||||
+ switch(EVP_CIPHER_CTX_key_length(ctx)*8) {
|
||||
+ case 128:
|
||||
+ cipher = EVP_aes_128_ecb();
|
||||
+ break;
|
||||
+ case 192:
|
||||
+ cipher = EVP_aes_192_ecb();
|
||||
+ break;
|
||||
+ case 256:
|
||||
+ cipher = EVP_aes_256_ecb();
|
||||
+ break;
|
||||
+ default:
|
||||
+ fatal("ssh_aes_ctr_init: wrong aes key length");
|
||||
+ }
|
||||
+ if(!EVP_EncryptInit_ex(&c->ecbctx, cipher, NULL, key, NULL))
|
||||
+ fatal("ssh_aes_ctr_init: cannot initialize aes encryption");
|
||||
+ EVP_CIPHER_CTX_set_padding(&c->ecbctx, 0);
|
||||
+ }
|
||||
if (iv != NULL)
|
||||
memcpy(c->aes_counter, iv, AES_BLOCK_SIZE);
|
||||
return (1);
|
||||
@@ -105,6 +145,7 @@ ssh_aes_ctr_cleanup(EVP_CIPHER_CTX *ctx)
|
||||
struct ssh_aes_ctr_ctx *c;
|
||||
|
||||
if ((c = EVP_CIPHER_CTX_get_app_data(ctx)) != NULL) {
|
||||
+ EVP_CIPHER_CTX_cleanup(&c->ecbctx);
|
||||
memset(c, 0, sizeof(*c));
|
||||
free(c);
|
||||
EVP_CIPHER_CTX_set_app_data(ctx, NULL);
|
@ -1,16 +0,0 @@
|
||||
diff --git a/scp.c b/scp.c
|
||||
index d98fa67..25d347b 100644
|
||||
--- a/scp.c
|
||||
+++ b/scp.c
|
||||
@@ -638,7 +638,10 @@ toremote(char *targ, int argc, char **argv)
|
||||
addargs(&alist, "%s", ssh_program);
|
||||
addargs(&alist, "-x");
|
||||
addargs(&alist, "-oClearAllForwardings=yes");
|
||||
- addargs(&alist, "-n");
|
||||
+ if (isatty(fileno(stdin)))
|
||||
+ addargs(&alist, "-t");
|
||||
+ else
|
||||
+ addargs(&alist, "-n");
|
||||
for (j = 0; j < remote_remote_args.num; j++) {
|
||||
addargs(&alist, "%s",
|
||||
remote_remote_args.list[j]);
|
@ -1,263 +0,0 @@
|
||||
diff -up openssh-7.4p1/log.c.log-in-chroot openssh-7.4p1/log.c
|
||||
--- openssh-7.4p1/log.c.log-in-chroot 2016-12-19 05:59:41.000000000 +0100
|
||||
+++ openssh-7.4p1/log.c 2016-12-23 15:14:33.330168088 +0100
|
||||
@@ -250,6 +250,11 @@ debug3(const char *fmt,...)
|
||||
void
|
||||
log_init(char *av0, LogLevel level, SyslogFacility facility, int on_stderr)
|
||||
{
|
||||
+ log_init_handler(av0, level, facility, on_stderr, 1);
|
||||
+}
|
||||
+
|
||||
+void
|
||||
+log_init_handler(char *av0, LogLevel level, SyslogFacility facility, int on_stderr, int reset_handler) {
|
||||
#if defined(HAVE_OPENLOG_R) && defined(SYSLOG_DATA_INIT)
|
||||
struct syslog_data sdata = SYSLOG_DATA_INIT;
|
||||
#endif
|
||||
@@ -273,8 +278,10 @@ log_init(char *av0, LogLevel level, Sysl
|
||||
exit(1);
|
||||
}
|
||||
|
||||
- log_handler = NULL;
|
||||
- log_handler_ctx = NULL;
|
||||
+ if (reset_handler) {
|
||||
+ log_handler = NULL;
|
||||
+ log_handler_ctx = NULL;
|
||||
+ }
|
||||
|
||||
log_on_stderr = on_stderr;
|
||||
if (on_stderr)
|
||||
diff -up openssh-7.4p1/log.h.log-in-chroot openssh-7.4p1/log.h
|
||||
--- openssh-7.4p1/log.h.log-in-chroot 2016-12-19 05:59:41.000000000 +0100
|
||||
+++ openssh-7.4p1/log.h 2016-12-23 15:14:33.330168088 +0100
|
||||
@@ -49,6 +49,7 @@ typedef enum {
|
||||
typedef void (log_handler_fn)(LogLevel, const char *, void *);
|
||||
|
||||
void log_init(char *, LogLevel, SyslogFacility, int);
|
||||
+void log_init_handler(char *, LogLevel, SyslogFacility, int, int);
|
||||
LogLevel log_level_get(void);
|
||||
int log_change_level(LogLevel);
|
||||
int log_is_on_stderr(void);
|
||||
diff -up openssh-7.4p1/monitor.c.log-in-chroot openssh-7.4p1/monitor.c
|
||||
--- openssh-7.4p1/monitor.c.log-in-chroot 2016-12-23 15:14:33.311168085 +0100
|
||||
+++ openssh-7.4p1/monitor.c 2016-12-23 15:16:42.154193100 +0100
|
||||
@@ -307,6 +307,8 @@ monitor_child_preauth(Authctxt *_authctx
|
||||
close(pmonitor->m_log_sendfd);
|
||||
pmonitor->m_log_sendfd = pmonitor->m_recvfd = -1;
|
||||
|
||||
+ pmonitor->m_state = "preauth";
|
||||
+
|
||||
authctxt = (Authctxt *)ssh->authctxt;
|
||||
memset(authctxt, 0, sizeof(*authctxt));
|
||||
ssh->authctxt = authctxt;
|
||||
@@ -405,6 +407,8 @@ monitor_child_postauth(struct monitor *p
|
||||
close(pmonitor->m_recvfd);
|
||||
pmonitor->m_recvfd = -1;
|
||||
|
||||
+ pmonitor->m_state = "postauth";
|
||||
+
|
||||
monitor_set_child_handler(pmonitor->m_pid);
|
||||
ssh_signal(SIGHUP, &monitor_child_handler);
|
||||
ssh_signal(SIGTERM, &monitor_child_handler);
|
||||
@@ -472,7 +476,7 @@ monitor_read_log(struct monitor *pmonito
|
||||
if (log_level_name(level) == NULL)
|
||||
fatal("%s: invalid log level %u (corrupted message?)",
|
||||
__func__, level);
|
||||
- do_log2(level, "%s [preauth]", msg);
|
||||
+ do_log2(level, "%s [%s]", msg, pmonitor->m_state);
|
||||
|
||||
sshbuf_free(logmsg);
|
||||
free(msg);
|
||||
@@ -1719,13 +1723,28 @@ monitor_init(void)
|
||||
mon = xcalloc(1, sizeof(*mon));
|
||||
monitor_openfds(mon, 1);
|
||||
|
||||
+ mon->m_state = "";
|
||||
+
|
||||
return mon;
|
||||
}
|
||||
|
||||
void
|
||||
-monitor_reinit(struct monitor *mon)
|
||||
+monitor_reinit(struct monitor *mon, const char *chroot_dir)
|
||||
{
|
||||
- monitor_openfds(mon, 0);
|
||||
+ struct stat dev_log_stat;
|
||||
+ char *dev_log_path;
|
||||
+ int do_logfds = 0;
|
||||
+
|
||||
+ if (chroot_dir != NULL) {
|
||||
+ xasprintf(&dev_log_path, "%s/dev/log", chroot_dir);
|
||||
+
|
||||
+ if (stat(dev_log_path, &dev_log_stat) != 0) {
|
||||
+ debug("%s: /dev/log doesn't exist in %s chroot - will try to log via monitor using [postauth] suffix", __func__, chroot_dir);
|
||||
+ do_logfds = 1;
|
||||
+ }
|
||||
+ free(dev_log_path);
|
||||
+ }
|
||||
+ monitor_openfds(mon, do_logfds);
|
||||
}
|
||||
|
||||
#ifdef GSSAPI
|
||||
diff -up openssh-7.4p1/monitor.h.log-in-chroot openssh-7.4p1/monitor.h
|
||||
--- openssh-7.4p1/monitor.h.log-in-chroot 2016-12-23 15:14:33.330168088 +0100
|
||||
+++ openssh-7.4p1/monitor.h 2016-12-23 15:16:28.372190424 +0100
|
||||
@@ -83,10 +83,11 @@ struct monitor {
|
||||
int m_log_sendfd;
|
||||
struct kex **m_pkex;
|
||||
pid_t m_pid;
|
||||
+ char *m_state;
|
||||
};
|
||||
|
||||
struct monitor *monitor_init(void);
|
||||
-void monitor_reinit(struct monitor *);
|
||||
+void monitor_reinit(struct monitor *, const char *);
|
||||
|
||||
struct Authctxt;
|
||||
void monitor_child_preauth(struct ssh *, struct monitor *);
|
||||
diff -up openssh-7.4p1/session.c.log-in-chroot openssh-7.4p1/session.c
|
||||
--- openssh-7.4p1/session.c.log-in-chroot 2016-12-23 15:14:33.319168086 +0100
|
||||
+++ openssh-7.4p1/session.c 2016-12-23 15:18:18.742211853 +0100
|
||||
@@ -160,6 +160,7 @@ login_cap_t *lc;
|
||||
|
||||
static int is_child = 0;
|
||||
static int in_chroot = 0;
|
||||
+static int have_dev_log = 1;
|
||||
|
||||
/* File containing userauth info, if ExposeAuthInfo set */
|
||||
static char *auth_info_file = NULL;
|
||||
@@ -619,6 +620,7 @@ do_exec(Session *s, const char *command)
|
||||
int ret;
|
||||
const char *forced = NULL, *tty = NULL;
|
||||
char session_type[1024];
|
||||
+ struct stat dev_log_stat;
|
||||
|
||||
if (options.adm_forced_command) {
|
||||
original_command = command;
|
||||
@@ -676,6 +678,10 @@ do_exec(Session *s, const char *command)
|
||||
tty += 5;
|
||||
}
|
||||
|
||||
+ if (lstat("/dev/log", &dev_log_stat) != 0) {
|
||||
+ have_dev_log = 0;
|
||||
+ }
|
||||
+
|
||||
verbose("Starting session: %s%s%s for %s from %.200s port %d id %d",
|
||||
session_type,
|
||||
tty == NULL ? "" : " on ",
|
||||
@@ -1486,14 +1492,6 @@ child_close_fds(void)
|
||||
|
||||
/* Stop directing logs to a high-numbered fd before we close it */
|
||||
log_redirect_stderr_to(NULL);
|
||||
-
|
||||
- /*
|
||||
- * Close any extra open file descriptors so that we don't have them
|
||||
- * hanging around in clients. Note that we want to do this after
|
||||
- * initgroups, because at least on Solaris 2.3 it leaves file
|
||||
- * descriptors open.
|
||||
- */
|
||||
- closefrom(STDERR_FILENO + 1);
|
||||
}
|
||||
|
||||
/*
|
||||
@@ -1629,8 +1627,6 @@ do_child(Session *s, const char *command
|
||||
exit(1);
|
||||
}
|
||||
|
||||
- closefrom(STDERR_FILENO + 1);
|
||||
-
|
||||
do_rc_files(ssh, s, shell);
|
||||
|
||||
/* restore SIGPIPE for child */
|
||||
@@ -1653,9 +1649,17 @@ do_child(Session *s, const char *command
|
||||
argv[i] = NULL;
|
||||
optind = optreset = 1;
|
||||
__progname = argv[0];
|
||||
- exit(sftp_server_main(i, argv, s->pw));
|
||||
+ exit(sftp_server_main(i, argv, s->pw, have_dev_log));
|
||||
}
|
||||
|
||||
+ /*
|
||||
+ * Close any extra open file descriptors so that we don't have them
|
||||
+ * hanging around in clients. Note that we want to do this after
|
||||
+ * initgroups, because at least on Solaris 2.3 it leaves file
|
||||
+ * descriptors open.
|
||||
+ */
|
||||
+ closefrom(STDERR_FILENO + 1);
|
||||
+
|
||||
fflush(NULL);
|
||||
|
||||
/* Get the last component of the shell name. */
|
||||
diff -up openssh-7.4p1/sftp.h.log-in-chroot openssh-7.4p1/sftp.h
|
||||
--- openssh-7.4p1/sftp.h.log-in-chroot 2016-12-19 05:59:41.000000000 +0100
|
||||
+++ openssh-7.4p1/sftp.h 2016-12-23 15:14:33.331168088 +0100
|
||||
@@ -97,5 +97,5 @@
|
||||
|
||||
struct passwd;
|
||||
|
||||
-int sftp_server_main(int, char **, struct passwd *);
|
||||
+int sftp_server_main(int, char **, struct passwd *, int);
|
||||
void sftp_server_cleanup_exit(int) __attribute__((noreturn));
|
||||
diff -up openssh-7.4p1/sftp-server.c.log-in-chroot openssh-7.4p1/sftp-server.c
|
||||
--- openssh-7.4p1/sftp-server.c.log-in-chroot 2016-12-19 05:59:41.000000000 +0100
|
||||
+++ openssh-7.4p1/sftp-server.c 2016-12-23 15:14:33.331168088 +0100
|
||||
@@ -1497,7 +1497,7 @@ sftp_server_usage(void)
|
||||
}
|
||||
|
||||
int
|
||||
-sftp_server_main(int argc, char **argv, struct passwd *user_pw)
|
||||
+sftp_server_main(int argc, char **argv, struct passwd *user_pw, int reset_handler)
|
||||
{
|
||||
fd_set *rset, *wset;
|
||||
int i, r, in, out, max, ch, skipargs = 0, log_stderr = 0;
|
||||
@@ -1511,7 +1511,7 @@ sftp_server_main(int argc, char **argv,
|
||||
extern char *__progname;
|
||||
|
||||
__progname = ssh_get_progname(argv[0]);
|
||||
- log_init(__progname, log_level, log_facility, log_stderr);
|
||||
+ log_init_handler(__progname, log_level, log_facility, log_stderr, reset_handler);
|
||||
|
||||
pw = pwcopy(user_pw);
|
||||
|
||||
@@ -1582,7 +1582,7 @@ sftp_server_main(int argc, char **argv,
|
||||
}
|
||||
}
|
||||
|
||||
- log_init(__progname, log_level, log_facility, log_stderr);
|
||||
+ log_init_handler(__progname, log_level, log_facility, log_stderr, reset_handler);
|
||||
|
||||
/*
|
||||
* On platforms where we can, avoid making /proc/self/{mem,maps}
|
||||
diff -up openssh-7.4p1/sftp-server-main.c.log-in-chroot openssh-7.4p1/sftp-server-main.c
|
||||
--- openssh-7.4p1/sftp-server-main.c.log-in-chroot 2016-12-19 05:59:41.000000000 +0100
|
||||
+++ openssh-7.4p1/sftp-server-main.c 2016-12-23 15:14:33.331168088 +0100
|
||||
@@ -49,5 +49,5 @@ main(int argc, char **argv)
|
||||
return 1;
|
||||
}
|
||||
|
||||
- return (sftp_server_main(argc, argv, user_pw));
|
||||
+ return (sftp_server_main(argc, argv, user_pw, 0));
|
||||
}
|
||||
diff -up openssh-7.4p1/sshd.c.log-in-chroot openssh-7.4p1/sshd.c
|
||||
--- openssh-7.4p1/sshd.c.log-in-chroot 2016-12-23 15:14:33.328168088 +0100
|
||||
+++ openssh-7.4p1/sshd.c 2016-12-23 15:14:33.332168088 +0100
|
||||
@@ -650,7 +650,7 @@ privsep_postauth(Authctxt *authctxt)
|
||||
}
|
||||
|
||||
/* New socket pair */
|
||||
- monitor_reinit(pmonitor);
|
||||
+ monitor_reinit(pmonitor, options.chroot_directory);
|
||||
|
||||
pmonitor->m_pid = fork();
|
||||
if (pmonitor->m_pid == -1)
|
||||
@@ -668,6 +668,11 @@ privsep_postauth(Authctxt *authctxt)
|
||||
|
||||
close(pmonitor->m_sendfd);
|
||||
pmonitor->m_sendfd = -1;
|
||||
+ close(pmonitor->m_log_recvfd);
|
||||
+ pmonitor->m_log_recvfd = -1;
|
||||
+
|
||||
+ if (pmonitor->m_log_sendfd != -1)
|
||||
+ set_log_handler(mm_log_handler, pmonitor);
|
||||
|
||||
/* Demote the private keys to public keys. */
|
||||
demote_sensitive_data();
|
@ -1,14 +0,0 @@
|
||||
--- a/scp.c
|
||||
+++ a/scp.c
|
||||
@@ -1084,6 +1084,10 @@ sink(int argc, char **argv)
|
||||
free(vect[0]);
|
||||
continue;
|
||||
}
|
||||
+ if (buf[0] == 'C' && ! exists && np[strlen(np)-1] == '/') {
|
||||
+ errno = ENOTDIR;
|
||||
+ goto bad;
|
||||
+ }
|
||||
omode = mode;
|
||||
mode |= S_IWUSR;
|
||||
if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) == -1) {
|
||||
--
|
@ -1,132 +0,0 @@
|
||||
diff --git a/openbsd-compat/port-linux-sshd.c b/openbsd-compat/port-linux-sshd.c
|
||||
index 8f32464..18a2ca4 100644
|
||||
--- a/openbsd-compat/port-linux-sshd.c
|
||||
+++ b/openbsd-compat/port-linux-sshd.c
|
||||
@@ -32,6 +32,7 @@
|
||||
#include "misc.h" /* servconf.h needs misc.h for struct ForwardOptions */
|
||||
#include "servconf.h"
|
||||
#include "port-linux.h"
|
||||
+#include "misc.h"
|
||||
#include "sshkey.h"
|
||||
#include "hostfile.h"
|
||||
#include "auth.h"
|
||||
@@ -445,7 +446,7 @@ sshd_selinux_setup_exec_context(char *pwname)
|
||||
void
|
||||
sshd_selinux_copy_context(void)
|
||||
{
|
||||
- security_context_t *ctx;
|
||||
+ char *ctx;
|
||||
|
||||
if (!sshd_selinux_enabled())
|
||||
return;
|
||||
@@ -461,6 +462,72 @@ sshd_selinux_copy_context(void)
|
||||
}
|
||||
}
|
||||
|
||||
+void
|
||||
+sshd_selinux_change_privsep_preauth_context(void)
|
||||
+{
|
||||
+ int len;
|
||||
+ char line[1024], *preauth_context = NULL, *cp, *arg;
|
||||
+ const char *contexts_path;
|
||||
+ FILE *contexts_file;
|
||||
+ struct stat sb;
|
||||
+
|
||||
+ contexts_path = selinux_openssh_contexts_path();
|
||||
+ if (contexts_path == NULL) {
|
||||
+ debug3("%s: Failed to get the path to SELinux context", __func__);
|
||||
+ return;
|
||||
+ }
|
||||
+
|
||||
+ if ((contexts_file = fopen(contexts_path, "r")) == NULL) {
|
||||
+ debug("%s: Failed to open SELinux context file", __func__);
|
||||
+ return;
|
||||
+ }
|
||||
+
|
||||
+ if (fstat(fileno(contexts_file), &sb) != 0 ||
|
||||
+ sb.st_uid != 0 || (sb.st_mode & 022) != 0) {
|
||||
+ logit("%s: SELinux context file needs to be owned by root"
|
||||
+ " and not writable by anyone else", __func__);
|
||||
+ fclose(contexts_file);
|
||||
+ return;
|
||||
+ }
|
||||
+
|
||||
+ while (fgets(line, sizeof(line), contexts_file)) {
|
||||
+ /* Strip trailing whitespace */
|
||||
+ for (len = strlen(line) - 1; len > 0; len--) {
|
||||
+ if (strchr(" \t\r\n", line[len]) == NULL)
|
||||
+ break;
|
||||
+ line[len] = '\0';
|
||||
+ }
|
||||
+
|
||||
+ if (line[0] == '\0')
|
||||
+ continue;
|
||||
+
|
||||
+ cp = line;
|
||||
+ arg = strdelim(&cp);
|
||||
+ if (arg && *arg == '\0')
|
||||
+ arg = strdelim(&cp);
|
||||
+
|
||||
+ if (arg && strcmp(arg, "privsep_preauth") == 0) {
|
||||
+ arg = strdelim(&cp);
|
||||
+ if (!arg || *arg == '\0') {
|
||||
+ debug("%s: privsep_preauth is empty", __func__);
|
||||
+ fclose(contexts_file);
|
||||
+ return;
|
||||
+ }
|
||||
+ preauth_context = xstrdup(arg);
|
||||
+ }
|
||||
+ }
|
||||
+ fclose(contexts_file);
|
||||
+
|
||||
+ if (preauth_context == NULL) {
|
||||
+ debug("%s: Unable to find 'privsep_preauth' option in"
|
||||
+ " SELinux context file", __func__);
|
||||
+ return;
|
||||
+ }
|
||||
+
|
||||
+ ssh_selinux_change_context(preauth_context);
|
||||
+ free(preauth_context);
|
||||
+}
|
||||
+
|
||||
#endif
|
||||
#endif
|
||||
|
||||
diff --git a/openbsd-compat/port-linux.c b/openbsd-compat/port-linux.c
|
||||
index 22ea8ef..1fc963d 100644
|
||||
--- a/openbsd-compat/port-linux.c
|
||||
+++ b/openbsd-compat/port-linux.c
|
||||
@@ -179,7 +179,7 @@ ssh_selinux_change_context(const char *newname)
|
||||
strlcpy(newctx + len, newname, newlen - len);
|
||||
if ((cx = index(cx + 1, ':')))
|
||||
strlcat(newctx, cx, newlen);
|
||||
- debug3("%s: setting context from '%s' to '%s'", __func__,
|
||||
+ debug("%s: setting context from '%s' to '%s'", __func__,
|
||||
oldctx, newctx);
|
||||
if (setcon(newctx) < 0)
|
||||
switchlog("%s: setcon %s from %s failed with %s", __func__,
|
||||
diff --git a/openbsd-compat/port-linux.h b/openbsd-compat/port-linux.h
|
||||
index cb51f99..8b7cda2 100644
|
||||
--- a/openbsd-compat/port-linux.h
|
||||
+++ b/openbsd-compat/port-linux.h
|
||||
@@ -29,6 +29,7 @@ int sshd_selinux_enabled(void);
|
||||
void sshd_selinux_copy_context(void);
|
||||
void sshd_selinux_setup_exec_context(char *);
|
||||
int sshd_selinux_setup_env_variables(void);
|
||||
+void sshd_selinux_change_privsep_preauth_context(void);
|
||||
#endif
|
||||
|
||||
#ifdef LINUX_OOM_ADJUST
|
||||
diff --git a/sshd.c b/sshd.c
|
||||
index 2871fe9..39b9c08 100644
|
||||
--- a/sshd.c
|
||||
+++ b/sshd.c
|
||||
@@ -629,7 +629,7 @@ privsep_preauth_child(void)
|
||||
demote_sensitive_data();
|
||||
|
||||
#ifdef WITH_SELINUX
|
||||
- ssh_selinux_change_context("sshd_net_t");
|
||||
+ sshd_selinux_change_privsep_preauth_context();
|
||||
#endif
|
||||
|
||||
/* Demote the child */
|
@ -1,131 +0,0 @@
|
||||
diff -up openssh-7.4p1/gss-serv-krb5.c.GSSAPIEnablek5users openssh-7.4p1/gss-serv-krb5.c
|
||||
--- openssh-7.4p1/gss-serv-krb5.c.GSSAPIEnablek5users 2016-12-23 15:18:40.615216100 +0100
|
||||
+++ openssh-7.4p1/gss-serv-krb5.c 2016-12-23 15:18:40.628216102 +0100
|
||||
@@ -279,7 +279,6 @@ ssh_gssapi_krb5_cmdok(krb5_principal pri
|
||||
FILE *fp;
|
||||
char file[MAXPATHLEN];
|
||||
char *line = NULL;
|
||||
- char kuser[65]; /* match krb5_kuserok() */
|
||||
struct stat st;
|
||||
struct passwd *pw = the_authctxt->pw;
|
||||
int found_principal = 0;
|
||||
@@ -288,7 +287,7 @@ ssh_gssapi_krb5_cmdok(krb5_principal pri
|
||||
|
||||
snprintf(file, sizeof(file), "%s/.k5users", pw->pw_dir);
|
||||
/* If both .k5login and .k5users DNE, self-login is ok. */
|
||||
- if (!k5login_exists && (access(file, F_OK) == -1)) {
|
||||
+ if ( !options.enable_k5users || (!k5login_exists && (access(file, F_OK) == -1))) {
|
||||
return ssh_krb5_kuserok(krb_context, principal, luser,
|
||||
k5login_exists);
|
||||
}
|
||||
diff -up openssh-7.4p1/servconf.c.GSSAPIEnablek5users openssh-7.4p1/servconf.c
|
||||
--- openssh-7.4p1/servconf.c.GSSAPIEnablek5users 2016-12-23 15:18:40.615216100 +0100
|
||||
+++ openssh-7.4p1/servconf.c 2016-12-23 15:35:36.354401156 +0100
|
||||
@@ -168,6 +168,7 @@ initialize_server_options(ServerOptions
|
||||
options->gss_store_rekey = -1;
|
||||
options->gss_kex_algorithms = NULL;
|
||||
options->use_kuserok = -1;
|
||||
+ options->enable_k5users = -1;
|
||||
options->password_authentication = -1;
|
||||
options->kbd_interactive_authentication = -1;
|
||||
options->challenge_response_authentication = -1;
|
||||
@@ -345,6 +346,8 @@ fill_default_server_options(ServerOption
|
||||
#endif
|
||||
if (options->use_kuserok == -1)
|
||||
options->use_kuserok = 1;
|
||||
+ if (options->enable_k5users == -1)
|
||||
+ options->enable_k5users = 0;
|
||||
if (options->password_authentication == -1)
|
||||
options->password_authentication = 1;
|
||||
if (options->kbd_interactive_authentication == -1)
|
||||
@@ -418,7 +421,7 @@ typedef enum {
|
||||
sHostbasedUsesNameFromPacketOnly, sHostbasedAcceptedKeyTypes,
|
||||
sHostKeyAlgorithms,
|
||||
sClientAliveInterval, sClientAliveCountMax, sAuthorizedKeysFile,
|
||||
- sGssAuthentication, sGssCleanupCreds, sGssStrictAcceptor,
|
||||
+ sGssAuthentication, sGssCleanupCreds, sGssEnablek5users, sGssStrictAcceptor,
|
||||
sGssKeyEx, sGssKexAlgorithms, sGssStoreRekey,
|
||||
sAcceptEnv, sSetEnv, sPermitTunnel,
|
||||
sMatch, sPermitOpen, sPermitListen, sForceCommand, sChrootDirectory,
|
||||
@@ -497,14 +500,16 @@ static struct {
|
||||
{ "gssapikeyexchange", sGssKeyEx, SSHCFG_GLOBAL },
|
||||
{ "gssapistorecredentialsonrekey", sGssStoreRekey, SSHCFG_GLOBAL },
|
||||
{ "gssapikexalgorithms", sGssKexAlgorithms, SSHCFG_GLOBAL },
|
||||
+ { "gssapienablek5users", sGssEnablek5users, SSHCFG_ALL },
|
||||
#else
|
||||
{ "gssapiauthentication", sUnsupported, SSHCFG_ALL },
|
||||
{ "gssapicleanupcredentials", sUnsupported, SSHCFG_GLOBAL },
|
||||
{ "gssapicleanupcreds", sUnsupported, SSHCFG_GLOBAL },
|
||||
{ "gssapistrictacceptorcheck", sUnsupported, SSHCFG_GLOBAL },
|
||||
{ "gssapikeyexchange", sUnsupported, SSHCFG_GLOBAL },
|
||||
{ "gssapistorecredentialsonrekey", sUnsupported, SSHCFG_GLOBAL },
|
||||
{ "gssapikexalgorithms", sUnsupported, SSHCFG_GLOBAL },
|
||||
+ { "gssapienablek5users", sUnsupported, SSHCFG_ALL },
|
||||
#endif
|
||||
{ "gssusesessionccache", sUnsupported, SSHCFG_GLOBAL },
|
||||
{ "gssapiusesessioncredcache", sUnsupported, SSHCFG_GLOBAL },
|
||||
@@ -1653,6 +1658,10 @@ process_server_config_line(ServerOptions
|
||||
intptr = &options->use_kuserok;
|
||||
goto parse_flag;
|
||||
|
||||
+ case sGssEnablek5users:
|
||||
+ intptr = &options->enable_k5users;
|
||||
+ goto parse_flag;
|
||||
+
|
||||
case sPermitListen:
|
||||
case sPermitOpen:
|
||||
if (opcode == sPermitListen) {
|
||||
@@ -2026,6 +2035,7 @@ copy_set_server_options(ServerOptions *d
|
||||
M_CP_INTOPT(ip_qos_interactive);
|
||||
M_CP_INTOPT(ip_qos_bulk);
|
||||
M_CP_INTOPT(use_kuserok);
|
||||
+ M_CP_INTOPT(enable_k5users);
|
||||
M_CP_INTOPT(rekey_limit);
|
||||
M_CP_INTOPT(rekey_interval);
|
||||
M_CP_INTOPT(log_level);
|
||||
@@ -2320,6 +2330,7 @@ dump_config(ServerOptions *o)
|
||||
# endif
|
||||
dump_cfg_fmtint(sKerberosUniqueCCache, o->kerberos_unique_ccache);
|
||||
dump_cfg_fmtint(sKerberosUseKuserok, o->use_kuserok);
|
||||
+ dump_cfg_fmtint(sGssEnablek5users, o->enable_k5users);
|
||||
#endif
|
||||
#ifdef GSSAPI
|
||||
dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
|
||||
diff -up openssh-7.4p1/servconf.h.GSSAPIEnablek5users openssh-7.4p1/servconf.h
|
||||
--- openssh-7.4p1/servconf.h.GSSAPIEnablek5users 2016-12-23 15:18:40.616216100 +0100
|
||||
+++ openssh-7.4p1/servconf.h 2016-12-23 15:18:40.629216102 +0100
|
||||
@@ -174,6 +174,7 @@ typedef struct {
|
||||
int kerberos_unique_ccache; /* If true, the acquired ticket will
|
||||
* be stored in per-session ccache */
|
||||
int use_kuserok;
|
||||
+ int enable_k5users;
|
||||
int gss_authentication; /* If true, permit GSSAPI authentication */
|
||||
int gss_keyex; /* If true, permit GSSAPI key exchange */
|
||||
int gss_cleanup_creds; /* If true, destroy cred cache on logout */
|
||||
diff -up openssh-7.4p1/sshd_config.5.GSSAPIEnablek5users openssh-7.4p1/sshd_config.5
|
||||
--- openssh-7.4p1/sshd_config.5.GSSAPIEnablek5users 2016-12-23 15:18:40.630216103 +0100
|
||||
+++ openssh-7.4p1/sshd_config.5 2016-12-23 15:36:21.607408435 +0100
|
||||
@@ -628,6 +628,12 @@ Specifies whether to automatically destr
|
||||
on logout.
|
||||
The default is
|
||||
.Cm yes .
|
||||
+.It Cm GSSAPIEnablek5users
|
||||
+Specifies whether to look at .k5users file for GSSAPI authentication
|
||||
+access control. Further details are described in
|
||||
+.Xr ksu 1 .
|
||||
+The default is
|
||||
+.Cm no .
|
||||
.It Cm GSSAPIKeyExchange
|
||||
Specifies whether key exchange based on GSSAPI is allowed. GSSAPI key exchange
|
||||
doesn't rely on ssh keys to verify host identity.
|
||||
diff -up openssh-7.4p1/sshd_config.GSSAPIEnablek5users openssh-7.4p1/sshd_config
|
||||
--- openssh-7.4p1/sshd_config.GSSAPIEnablek5users 2016-12-23 15:18:40.616216100 +0100
|
||||
+++ openssh-7.4p1/sshd_config 2016-12-23 15:18:40.631216103 +0100
|
||||
@@ -80,6 +80,7 @@ GSSAPIAuthentication yes
|
||||
#GSSAPICleanupCredentials yes
|
||||
#GSSAPIStrictAcceptorCheck yes
|
||||
#GSSAPIKeyExchange no
|
||||
+#GSSAPIEnablek5users no
|
||||
|
||||
# Set this to 'yes' to enable PAM authentication, account processing,
|
||||
# and session processing. If this is enabled, PAM authentication will
|
@ -1,39 +0,0 @@
|
||||
diff -up openssh/sshd.c.ip-opts openssh/sshd.c
|
||||
--- openssh/sshd.c.ip-opts 2016-07-25 13:58:48.998507834 +0200
|
||||
+++ openssh/sshd.c 2016-07-25 14:01:28.346469878 +0200
|
||||
@@ -1507,12 +1507,29 @@ check_ip_options(struct ssh *ssh)
|
||||
|
||||
if (getsockopt(sock_in, IPPROTO_IP, IP_OPTIONS, opts,
|
||||
&option_size) >= 0 && option_size != 0) {
|
||||
- text[0] = '\0';
|
||||
- for (i = 0; i < option_size; i++)
|
||||
- snprintf(text + i*3, sizeof(text) - i*3,
|
||||
- " %2.2x", opts[i]);
|
||||
- fatal("Connection from %.100s port %d with IP opts: %.800s",
|
||||
- ssh_remote_ipaddr(ssh), ssh_remote_port(ssh), text);
|
||||
+ i = 0;
|
||||
+ do {
|
||||
+ switch (opts[i]) {
|
||||
+ case 0:
|
||||
+ case 1:
|
||||
+ ++i;
|
||||
+ break;
|
||||
+ case 130:
|
||||
+ case 133:
|
||||
+ case 134:
|
||||
+ i += opts[i + 1];
|
||||
+ break;
|
||||
+ default:
|
||||
+ /* Fail, fatally, if we detect either loose or strict
|
||||
+ * source routing options. */
|
||||
+ text[0] = '\0';
|
||||
+ for (i = 0; i < option_size; i++)
|
||||
+ snprintf(text + i*3, sizeof(text) - i*3,
|
||||
+ " %2.2x", opts[i]);
|
||||
+ fatal("Connection from %.100s port %d with IP options:%.800s",
|
||||
+ ssh_remote_ipaddr(ssh), ssh_remote_port(ssh), text);
|
||||
+ }
|
||||
+ } while (i < option_size);
|
||||
}
|
||||
return;
|
||||
#endif /* IP_OPTIONS */
|
@ -1,257 +0,0 @@
|
||||
diff -up openssh-6.8p1/Makefile.in.ctr-cavs openssh-6.8p1/Makefile.in
|
||||
--- openssh-6.8p1/Makefile.in.ctr-cavs 2015-03-18 11:22:05.493289018 +0100
|
||||
+++ openssh-6.8p1/Makefile.in 2015-03-18 11:22:44.504196316 +0100
|
||||
@@ -28,6 +28,7 @@ SSH_KEYSIGN=$(libexecdir)/ssh-keysign
|
||||
SFTP_SERVER=$(libexecdir)/sftp-server
|
||||
SSH_KEYSIGN=$(libexecdir)/ssh-keysign
|
||||
SSH_KEYCAT=$(libexecdir)/ssh-keycat
|
||||
+CTR_CAVSTEST=$(libexecdir)/ctr-cavstest
|
||||
SSH_PKCS11_HELPER=$(libexecdir)/ssh-pkcs11-helper
|
||||
SSH_SK_HELPER=$(libexecdir)/ssh-sk-helper
|
||||
PRIVSEP_PATH=@PRIVSEP_PATH@
|
||||
@@ -66,7 +67,7 @@ EXEEXT=@EXEEXT@
|
||||
|
||||
.SUFFIXES: .lo
|
||||
|
||||
-TARGETS=ssh$(EXEEXT) sshd$(EXEEXT) ssh-add$(EXEEXT) ssh-keygen$(EXEEXT) ssh-keyscan${EXEEXT} ssh-keysign${EXEEXT} ssh-pkcs11-helper$(EXEEXT) ssh-agent$(EXEEXT) scp$(EXEEXT) sftp-server$(EXEEXT) sftp$(EXEEXT) ssh-sk-helper$(EXEEXT) ssh-keycat$(EXEEXT)
|
||||
+TARGETS=ssh$(EXEEXT) sshd$(EXEEXT) ssh-add$(EXEEXT) ssh-keygen$(EXEEXT) ssh-keyscan${EXEEXT} ssh-keysign${EXEEXT} ssh-pkcs11-helper$(EXEEXT) ssh-agent$(EXEEXT) scp$(EXEEXT) sftp-server$(EXEEXT) sftp$(EXEEXT) ssh-sk-helper$(EXEEXT) ssh-keycat$(EXEEXT) ctr-cavstest$(EXEEXT)
|
||||
|
||||
XMSS_OBJS=\
|
||||
ssh-xmss.o \
|
||||
@@ -194,6 +195,9 @@ ssh-ldap-helper$(EXEEXT): $(LIBCOMPAT) l
|
||||
ssh-keycat$(EXEEXT): $(LIBCOMPAT) $(SSHDOBJS) libssh.a ssh-keycat.o uidswap.o
|
||||
$(LD) -o $@ ssh-keycat.o uidswap.o $(LDFLAGS) -lssh -lopenbsd-compat $(KEYCATLIBS) $(LIBS)
|
||||
|
||||
+ctr-cavstest$(EXEEXT): $(LIBCOMPAT) libssh.a ctr-cavstest.o
|
||||
+ $(LD) -o $@ ctr-cavstest.o $(LDFLAGS) -lssh -lopenbsd-compat -lssh $(LIBS)
|
||||
+
|
||||
ssh-keyscan$(EXEEXT): $(LIBCOMPAT) libssh.a $(SSHKEYSCAN_OBJS)
|
||||
$(LD) -o $@ $(SSHKEYSCAN_OBJS) $(LDFLAGS) -lssh -lopenbsd-compat -lssh $(LIBS)
|
||||
|
||||
@@ -326,6 +330,7 @@ install-files:
|
||||
$(INSTALL) -m 0755 $(STRIP_OPT) ssh-pkcs11-helper$(EXEEXT) $(DESTDIR)$(SSH_PKCS11_HELPER)$(EXEEXT)
|
||||
$(INSTALL) -m 0755 $(STRIP_OPT) ssh-sk-helper$(EXEEXT) $(DESTDIR)$(SSH_SK_HELPER)$(EXEEXT)
|
||||
$(INSTALL) -m 0755 $(STRIP_OPT) ssh-keycat$(EXEEXT) $(DESTDIR)$(libexecdir)/ssh-keycat$(EXEEXT)
|
||||
+ $(INSTALL) -m 0755 $(STRIP_OPT) ctr-cavstest$(EXEEXT) $(DESTDIR)$(libexecdir)/ctr-cavstest$(EXEEXT)
|
||||
$(INSTALL) -m 0755 $(STRIP_OPT) sftp$(EXEEXT) $(DESTDIR)$(bindir)/sftp$(EXEEXT)
|
||||
$(INSTALL) -m 0755 $(STRIP_OPT) sftp-server$(EXEEXT) $(DESTDIR)$(SFTP_SERVER)$(EXEEXT)
|
||||
$(INSTALL) -m 644 ssh.1.out $(DESTDIR)$(mandir)/$(mansubdir)1/ssh.1
|
||||
diff -up openssh-6.8p1/ctr-cavstest.c.ctr-cavs openssh-6.8p1/ctr-cavstest.c
|
||||
--- openssh-6.8p1/ctr-cavstest.c.ctr-cavs 2015-03-18 11:22:05.521288952 +0100
|
||||
+++ openssh-6.8p1/ctr-cavstest.c 2015-03-18 11:22:05.521288952 +0100
|
||||
@@ -0,0 +1,215 @@
|
||||
+/*
|
||||
+ *
|
||||
+ * invocation (all of the following are equal):
|
||||
+ * ./ctr-cavstest --algo aes128-ctr --key 987212980144b6a632e864031f52dacc --mode encrypt --data a6deca405eef2e8e4609abf3c3ccf4a6
|
||||
+ * ./ctr-cavstest --algo aes128-ctr --key 987212980144b6a632e864031f52dacc --mode encrypt --data a6deca405eef2e8e4609abf3c3ccf4a6 --iv 00000000000000000000000000000000
|
||||
+ * echo -n a6deca405eef2e8e4609abf3c3ccf4a6 | ./ctr-cavstest --algo aes128-ctr --key 987212980144b6a632e864031f52dacc --mode encrypt
|
||||
+ */
|
||||
+
|
||||
+#include "includes.h"
|
||||
+
|
||||
+#include <sys/types.h>
|
||||
+#include <sys/param.h>
|
||||
+#include <stdarg.h>
|
||||
+#include <stdio.h>
|
||||
+#include <stdlib.h>
|
||||
+#include <string.h>
|
||||
+#include <ctype.h>
|
||||
+
|
||||
+#include "xmalloc.h"
|
||||
+#include "log.h"
|
||||
+#include "ssherr.h"
|
||||
+#include "cipher.h"
|
||||
+
|
||||
+/* compatibility with old or broken OpenSSL versions */
|
||||
+#include "openbsd-compat/openssl-compat.h"
|
||||
+
|
||||
+void usage(void) {
|
||||
+ fprintf(stderr, "Usage: ctr-cavstest --algo <ssh-crypto-algorithm>\n"
|
||||
+ " --key <hexadecimal-key> --mode <encrypt|decrypt>\n"
|
||||
+ " [--iv <hexadecimal-iv>] --data <hexadecimal-data>\n\n"
|
||||
+ "Hexadecimal output is printed to stdout.\n"
|
||||
+ "Hexadecimal input data can be alternatively read from stdin.\n");
|
||||
+ exit(1);
|
||||
+}
|
||||
+
|
||||
+void *fromhex(char *hex, size_t *len)
|
||||
+{
|
||||
+ unsigned char *bin;
|
||||
+ char *p;
|
||||
+ size_t n = 0;
|
||||
+ int shift = 4;
|
||||
+ unsigned char out = 0;
|
||||
+ unsigned char *optr;
|
||||
+
|
||||
+ bin = xmalloc(strlen(hex)/2);
|
||||
+ optr = bin;
|
||||
+
|
||||
+ for (p = hex; *p != '\0'; ++p) {
|
||||
+ unsigned char c;
|
||||
+
|
||||
+ c = *p;
|
||||
+ if (isspace(c))
|
||||
+ continue;
|
||||
+
|
||||
+ if (c >= '0' && c <= '9') {
|
||||
+ c = c - '0';
|
||||
+ } else if (c >= 'A' && c <= 'F') {
|
||||
+ c = c - 'A' + 10;
|
||||
+ } else if (c >= 'a' && c <= 'f') {
|
||||
+ c = c - 'a' + 10;
|
||||
+ } else {
|
||||
+ /* truncate on nonhex cipher */
|
||||
+ break;
|
||||
+ }
|
||||
+
|
||||
+ out |= c << shift;
|
||||
+ shift = (shift + 4) % 8;
|
||||
+
|
||||
+ if (shift) {
|
||||
+ *(optr++) = out;
|
||||
+ out = 0;
|
||||
+ ++n;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ *len = n;
|
||||
+ return bin;
|
||||
+}
|
||||
+
|
||||
+#define READ_CHUNK 4096
|
||||
+#define MAX_READ_SIZE 1024*1024*100
|
||||
+char *read_stdin(void)
|
||||
+{
|
||||
+ char *buf;
|
||||
+ size_t n, total = 0;
|
||||
+
|
||||
+ buf = xmalloc(READ_CHUNK);
|
||||
+
|
||||
+ do {
|
||||
+ n = fread(buf + total, 1, READ_CHUNK, stdin);
|
||||
+ if (n < READ_CHUNK) /* terminate on short read */
|
||||
+ break;
|
||||
+
|
||||
+ total += n;
|
||||
+ buf = xreallocarray(buf, total + READ_CHUNK, 1);
|
||||
+ } while(total < MAX_READ_SIZE);
|
||||
+ return buf;
|
||||
+}
|
||||
+
|
||||
+int main (int argc, char *argv[])
|
||||
+{
|
||||
+
|
||||
+ const struct sshcipher *c;
|
||||
+ struct sshcipher_ctx *cc;
|
||||
+ char *algo = "aes128-ctr";
|
||||
+ char *hexkey = NULL;
|
||||
+ char *hexiv = "00000000000000000000000000000000";
|
||||
+ char *hexdata = NULL;
|
||||
+ char *p;
|
||||
+ int i, r;
|
||||
+ int encrypt = 1;
|
||||
+ void *key;
|
||||
+ size_t keylen;
|
||||
+ void *iv;
|
||||
+ size_t ivlen;
|
||||
+ void *data;
|
||||
+ size_t datalen;
|
||||
+ void *outdata;
|
||||
+
|
||||
+ for (i = 1; i < argc; ++i) {
|
||||
+ if (strcmp(argv[i], "--algo") == 0) {
|
||||
+ algo = argv[++i];
|
||||
+ } else if (strcmp(argv[i], "--key") == 0) {
|
||||
+ hexkey = argv[++i];
|
||||
+ } else if (strcmp(argv[i], "--mode") == 0) {
|
||||
+ ++i;
|
||||
+ if (argv[i] == NULL) {
|
||||
+ usage();
|
||||
+ }
|
||||
+ if (strncmp(argv[i], "enc", 3) == 0) {
|
||||
+ encrypt = 1;
|
||||
+ } else if (strncmp(argv[i], "dec", 3) == 0) {
|
||||
+ encrypt = 0;
|
||||
+ } else {
|
||||
+ usage();
|
||||
+ }
|
||||
+ } else if (strcmp(argv[i], "--iv") == 0) {
|
||||
+ hexiv = argv[++i];
|
||||
+ } else if (strcmp(argv[i], "--data") == 0) {
|
||||
+ hexdata = argv[++i];
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ if (hexkey == NULL || algo == NULL) {
|
||||
+ usage();
|
||||
+ }
|
||||
+
|
||||
+ OpenSSL_add_all_algorithms();
|
||||
+
|
||||
+ c = cipher_by_name(algo);
|
||||
+ if (c == NULL) {
|
||||
+ fprintf(stderr, "Error: unknown algorithm\n");
|
||||
+ return 2;
|
||||
+ }
|
||||
+
|
||||
+ if (hexdata == NULL) {
|
||||
+ hexdata = read_stdin();
|
||||
+ } else {
|
||||
+ hexdata = xstrdup(hexdata);
|
||||
+ }
|
||||
+
|
||||
+ key = fromhex(hexkey, &keylen);
|
||||
+
|
||||
+ if (keylen != 16 && keylen != 24 && keylen == 32) {
|
||||
+ fprintf(stderr, "Error: unsupported key length\n");
|
||||
+ return 2;
|
||||
+ }
|
||||
+
|
||||
+ iv = fromhex(hexiv, &ivlen);
|
||||
+
|
||||
+ if (ivlen != 16) {
|
||||
+ fprintf(stderr, "Error: unsupported iv length\n");
|
||||
+ return 2;
|
||||
+ }
|
||||
+
|
||||
+ data = fromhex(hexdata, &datalen);
|
||||
+
|
||||
+ if (data == NULL || datalen == 0) {
|
||||
+ fprintf(stderr, "Error: no data to encrypt/decrypt\n");
|
||||
+ return 2;
|
||||
+ }
|
||||
+
|
||||
+ if ((r = cipher_init(&cc, c, key, keylen, iv, ivlen, encrypt)) != 0) {
|
||||
+ fprintf(stderr, "Error: cipher_init failed: %s\n", ssh_err(r));
|
||||
+ return 2;
|
||||
+ }
|
||||
+
|
||||
+ free(key);
|
||||
+ free(iv);
|
||||
+
|
||||
+ outdata = malloc(datalen);
|
||||
+ if(outdata == NULL) {
|
||||
+ fprintf(stderr, "Error: memory allocation failure\n");
|
||||
+ return 2;
|
||||
+ }
|
||||
+
|
||||
+ if ((r = cipher_crypt(cc, 0, outdata, data, datalen, 0, 0)) != 0) {
|
||||
+ fprintf(stderr, "Error: cipher_crypt failed: %s\n", ssh_err(r));
|
||||
+ return 2;
|
||||
+ }
|
||||
+
|
||||
+ free(data);
|
||||
+
|
||||
+ cipher_free(cc);
|
||||
+
|
||||
+ for (p = outdata; datalen > 0; ++p, --datalen) {
|
||||
+ printf("%02X", (unsigned char)*p);
|
||||
+ }
|
||||
+
|
||||
+ free(outdata);
|
||||
+
|
||||
+ printf("\n");
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
@ -1,280 +0,0 @@
|
||||
diff --git a/gss-serv-krb5.c b/gss-serv-krb5.c
|
||||
index 413b845..54dd383 100644
|
||||
--- a/gss-serv-krb5.c
|
||||
+++ b/gss-serv-krb5.c
|
||||
@@ -32,7 +32,9 @@
|
||||
#include <sys/types.h>
|
||||
|
||||
#include <stdarg.h>
|
||||
+#include <stdio.h>
|
||||
#include <string.h>
|
||||
+#include <unistd.h>
|
||||
|
||||
#include "xmalloc.h"
|
||||
#include "sshkey.h"
|
||||
@@ -45,6 +47,7 @@
|
||||
|
||||
#include "ssh-gss.h"
|
||||
|
||||
+extern Authctxt *the_authctxt;
|
||||
extern ServerOptions options;
|
||||
|
||||
#ifdef HEIMDAL
|
||||
@@ -56,6 +59,13 @@ extern ServerOptions options;
|
||||
# include <gssapi/gssapi_krb5.h>
|
||||
#endif
|
||||
|
||||
+/* all commands are allowed by default */
|
||||
+char **k5users_allowed_cmds = NULL;
|
||||
+
|
||||
+static int ssh_gssapi_k5login_exists();
|
||||
+static int ssh_gssapi_krb5_cmdok(krb5_principal, const char *, const char *,
|
||||
+ int);
|
||||
+
|
||||
static krb5_context krb_context = NULL;
|
||||
|
||||
/* Initialise the krb5 library, for the stuff that GSSAPI won't do */
|
||||
@@ -88,6 +98,7 @@ ssh_gssapi_krb5_userok(ssh_gssapi_client *client, char *name)
|
||||
krb5_principal princ;
|
||||
int retval;
|
||||
const char *errmsg;
|
||||
+ int k5login_exists;
|
||||
|
||||
if (ssh_gssapi_krb5_init() == 0)
|
||||
return 0;
|
||||
@@ -99,10 +110,22 @@ ssh_gssapi_krb5_userok(ssh_gssapi_client *client, char *name)
|
||||
krb5_free_error_message(krb_context, errmsg);
|
||||
return 0;
|
||||
}
|
||||
- if (krb5_kuserok(krb_context, princ, name)) {
|
||||
+ /* krb5_kuserok() returns 1 if .k5login DNE and this is self-login.
|
||||
+ * We have to make sure to check .k5users in that case. */
|
||||
+ k5login_exists = ssh_gssapi_k5login_exists();
|
||||
+ /* NOTE: .k5login and .k5users must opened as root, not the user,
|
||||
+ * because if they are on a krb5-protected filesystem, user credentials
|
||||
+ * to access these files aren't available yet. */
|
||||
+ if (krb5_kuserok(krb_context, princ, name) && k5login_exists) {
|
||||
retval = 1;
|
||||
logit("Authorized to %s, krb5 principal %s (krb5_kuserok)",
|
||||
name, (char *)client->displayname.value);
|
||||
+ } else if (ssh_gssapi_krb5_cmdok(princ, client->exportedname.value,
|
||||
+ name, k5login_exists)) {
|
||||
+ retval = 1;
|
||||
+ logit("Authorized to %s, krb5 principal %s "
|
||||
+ "(ssh_gssapi_krb5_cmdok)",
|
||||
+ name, (char *)client->displayname.value);
|
||||
} else
|
||||
retval = 0;
|
||||
|
||||
@@ -110,6 +133,137 @@ ssh_gssapi_krb5_userok(ssh_gssapi_client *client, char *name)
|
||||
return retval;
|
||||
}
|
||||
|
||||
+/* Test for existence of .k5login.
|
||||
+ * We need this as part of our .k5users check, because krb5_kuserok()
|
||||
+ * returns success if .k5login DNE and user is logging in as himself.
|
||||
+ * With .k5login absent and .k5users present, we don't want absence
|
||||
+ * of .k5login to authorize self-login. (absence of both is required)
|
||||
+ * Returns 1 if .k5login is available, 0 otherwise.
|
||||
+ */
|
||||
+static int
|
||||
+ssh_gssapi_k5login_exists()
|
||||
+{
|
||||
+ char file[MAXPATHLEN];
|
||||
+ struct passwd *pw = the_authctxt->pw;
|
||||
+
|
||||
+ snprintf(file, sizeof(file), "%s/.k5login", pw->pw_dir);
|
||||
+ return access(file, F_OK) == 0;
|
||||
+}
|
||||
+
|
||||
+/* check .k5users for login or command authorization
|
||||
+ * Returns 1 if principal is authorized, 0 otherwise.
|
||||
+ * If principal is authorized, (global) k5users_allowed_cmds may be populated.
|
||||
+ */
|
||||
+static int
|
||||
+ssh_gssapi_krb5_cmdok(krb5_principal principal, const char *name,
|
||||
+ const char *luser, int k5login_exists)
|
||||
+{
|
||||
+ FILE *fp;
|
||||
+ char file[MAXPATHLEN];
|
||||
+ char *line = NULL;
|
||||
+ char kuser[65]; /* match krb5_kuserok() */
|
||||
+ struct stat st;
|
||||
+ struct passwd *pw = the_authctxt->pw;
|
||||
+ int found_principal = 0;
|
||||
+ int ncommands = 0, allcommands = 0;
|
||||
+ u_long linenum = 0;
|
||||
+ size_t linesize = 0;
|
||||
+
|
||||
+ snprintf(file, sizeof(file), "%s/.k5users", pw->pw_dir);
|
||||
+ /* If both .k5login and .k5users DNE, self-login is ok. */
|
||||
+ if (!k5login_exists && (access(file, F_OK) == -1)) {
|
||||
+ return (krb5_aname_to_localname(krb_context, principal,
|
||||
+ sizeof(kuser), kuser) == 0) &&
|
||||
+ (strcmp(kuser, luser) == 0);
|
||||
+ }
|
||||
+ if ((fp = fopen(file, "r")) == NULL) {
|
||||
+ int saved_errno = errno;
|
||||
+ /* 2nd access check to ease debugging if file perms are wrong.
|
||||
+ * But we don't want to report this if .k5users simply DNE. */
|
||||
+ if (access(file, F_OK) == 0) {
|
||||
+ logit("User %s fopen %s failed: %s",
|
||||
+ pw->pw_name, file, strerror(saved_errno));
|
||||
+ }
|
||||
+ return 0;
|
||||
+ }
|
||||
+ /* .k5users must be owned either by the user or by root */
|
||||
+ if (fstat(fileno(fp), &st) == -1) {
|
||||
+ /* can happen, but very wierd error so report it */
|
||||
+ logit("User %s fstat %s failed: %s",
|
||||
+ pw->pw_name, file, strerror(errno));
|
||||
+ fclose(fp);
|
||||
+ return 0;
|
||||
+ }
|
||||
+ if (!(st.st_uid == pw->pw_uid || st.st_uid == 0)) {
|
||||
+ logit("User %s %s is not owned by root or user",
|
||||
+ pw->pw_name, file);
|
||||
+ fclose(fp);
|
||||
+ return 0;
|
||||
+ }
|
||||
+ /* .k5users must be a regular file. krb5_kuserok() doesn't do this
|
||||
+ * check, but we don't want to be deficient if they add a check. */
|
||||
+ if (!S_ISREG(st.st_mode)) {
|
||||
+ logit("User %s %s is not a regular file", pw->pw_name, file);
|
||||
+ fclose(fp);
|
||||
+ return 0;
|
||||
+ }
|
||||
+ /* file exists; initialize k5users_allowed_cmds (to none!) */
|
||||
+ k5users_allowed_cmds = xcalloc(++ncommands,
|
||||
+ sizeof(*k5users_allowed_cmds));
|
||||
+
|
||||
+ /* Check each line. ksu allows unlimited length lines. */
|
||||
+ while (!allcommands && getline(&line, &linesize, fp) != -1) {
|
||||
+ linenum++;
|
||||
+ char *token;
|
||||
+
|
||||
+ /* we parse just like ksu, even though we could do better */
|
||||
+ if ((token = strtok(line, " \t\n")) == NULL)
|
||||
+ continue;
|
||||
+ if (strcmp(name, token) == 0) {
|
||||
+ /* we matched on client principal */
|
||||
+ found_principal = 1;
|
||||
+ if ((token = strtok(NULL, " \t\n")) == NULL) {
|
||||
+ /* only shell is allowed */
|
||||
+ k5users_allowed_cmds[ncommands-1] =
|
||||
+ xstrdup(pw->pw_shell);
|
||||
+ k5users_allowed_cmds =
|
||||
+ xreallocarray(k5users_allowed_cmds, ++ncommands,
|
||||
+ sizeof(*k5users_allowed_cmds));
|
||||
+ break;
|
||||
+ }
|
||||
+ /* process the allowed commands */
|
||||
+ while (token) {
|
||||
+ if (strcmp(token, "*") == 0) {
|
||||
+ allcommands = 1;
|
||||
+ break;
|
||||
+ }
|
||||
+ k5users_allowed_cmds[ncommands-1] =
|
||||
+ xstrdup(token);
|
||||
+ k5users_allowed_cmds =
|
||||
+ xreallocarray(k5users_allowed_cmds, ++ncommands,
|
||||
+ sizeof(*k5users_allowed_cmds));
|
||||
+ token = strtok(NULL, " \t\n");
|
||||
+ }
|
||||
+ }
|
||||
+ }
|
||||
+ free(line);
|
||||
+ if (k5users_allowed_cmds) {
|
||||
+ /* terminate vector */
|
||||
+ k5users_allowed_cmds[ncommands-1] = NULL;
|
||||
+ /* if all commands are allowed, free vector */
|
||||
+ if (allcommands) {
|
||||
+ int i;
|
||||
+ for (i = 0; i < ncommands; i++) {
|
||||
+ free(k5users_allowed_cmds[i]);
|
||||
+ }
|
||||
+ free(k5users_allowed_cmds);
|
||||
+ k5users_allowed_cmds = NULL;
|
||||
+ }
|
||||
+ }
|
||||
+ fclose(fp);
|
||||
+ return found_principal;
|
||||
+}
|
||||
+
|
||||
|
||||
/* This writes out any forwarded credentials from the structure populated
|
||||
* during userauth. Called after we have setuid to the user */
|
||||
diff --git a/session.c b/session.c
|
||||
index 28659ec..9c94d8e 100644
|
||||
--- a/session.c
|
||||
+++ b/session.c
|
||||
@@ -789,6 +789,29 @@ do_exec(Session *s, const char *command)
|
||||
command = auth_opts->force_command;
|
||||
forced = "(key-option)";
|
||||
}
|
||||
+#ifdef GSSAPI
|
||||
+#ifdef KRB5 /* k5users_allowed_cmds only available w/ GSSAPI+KRB5 */
|
||||
+ else if (k5users_allowed_cmds) {
|
||||
+ const char *match = command;
|
||||
+ int allowed = 0, i = 0;
|
||||
+
|
||||
+ if (!match)
|
||||
+ match = s->pw->pw_shell;
|
||||
+ while (k5users_allowed_cmds[i]) {
|
||||
+ if (strcmp(match, k5users_allowed_cmds[i++]) == 0) {
|
||||
+ debug("Allowed command '%.900s'", match);
|
||||
+ allowed = 1;
|
||||
+ break;
|
||||
+ }
|
||||
+ }
|
||||
+ if (!allowed) {
|
||||
+ debug("command '%.900s' not allowed", match);
|
||||
+ return 1;
|
||||
+ }
|
||||
+ }
|
||||
+#endif
|
||||
+#endif
|
||||
+
|
||||
s->forced = 0;
|
||||
if (forced != NULL) {
|
||||
s->forced = 1;
|
||||
diff --git a/ssh-gss.h b/ssh-gss.h
|
||||
index 0374c88..509109a 100644
|
||||
--- a/ssh-gss.h
|
||||
+++ b/ssh-gss.h
|
||||
@@ -49,6 +49,10 @@
|
||||
# endif /* !HAVE_DECL_GSS_C_NT_... */
|
||||
|
||||
# endif /* !HEIMDAL */
|
||||
+
|
||||
+/* .k5users support */
|
||||
+extern char **k5users_allowed_cmds;
|
||||
+
|
||||
#endif /* KRB5 */
|
||||
|
||||
/* draft-ietf-secsh-gsskeyex-06 */
|
||||
diff --git a/sshd.8 b/sshd.8
|
||||
index adcaaf9..824163b 100644
|
||||
--- a/sshd.8
|
||||
+++ b/sshd.8
|
||||
@@ -324,6 +324,7 @@ Finally, the server and the client enter an authentication dialog.
|
||||
The client tries to authenticate itself using
|
||||
host-based authentication,
|
||||
public key authentication,
|
||||
+GSSAPI authentication,
|
||||
challenge-response authentication,
|
||||
or password authentication.
|
||||
.Pp
|
||||
@@ -800,6 +801,12 @@ This file is used in exactly the same way as
|
||||
but allows host-based authentication without permitting login with
|
||||
rlogin/rsh.
|
||||
.Pp
|
||||
+.It Pa ~/.k5login
|
||||
+.It Pa ~/.k5users
|
||||
+These files enforce GSSAPI/Kerberos authentication access control.
|
||||
+Further details are described in
|
||||
+.Xr ksu 1 .
|
||||
+.Pp
|
||||
.It Pa ~/.ssh/
|
||||
This directory is the default location for all user-specific configuration
|
||||
and authentication information.
|
@ -1,485 +0,0 @@
|
||||
diff -up openssh/auth.c.keycat openssh/misc.c
|
||||
--- openssh/auth.c.keycat 2015-06-24 10:57:50.158849606 +0200
|
||||
+++ openssh/auth.c 2015-06-24 11:04:23.989868638 +0200
|
||||
@@ -966,6 +966,14 @@ subprocess(const char *tag, struct passw
|
||||
_exit(1);
|
||||
}
|
||||
|
||||
+#ifdef WITH_SELINUX
|
||||
+ if (sshd_selinux_setup_env_variables() < 0) {
|
||||
+ error ("failed to copy environment: %s",
|
||||
+ strerror(errno));
|
||||
+ _exit(127);
|
||||
+ }
|
||||
+#endif
|
||||
+
|
||||
execve(av[0], av, child_env);
|
||||
error("%s exec \"%s\": %s", tag, command, strerror(errno));
|
||||
_exit(127);
|
||||
diff -up openssh/HOWTO.ssh-keycat.keycat openssh/HOWTO.ssh-keycat
|
||||
--- openssh/HOWTO.ssh-keycat.keycat 2015-06-24 10:57:50.157849608 +0200
|
||||
+++ openssh/HOWTO.ssh-keycat 2015-06-24 10:57:50.157849608 +0200
|
||||
@@ -0,0 +1,12 @@
|
||||
+The ssh-keycat retrieves the content of the ~/.ssh/authorized_keys
|
||||
+of an user in any environment. This includes environments with
|
||||
+polyinstantiation of home directories and SELinux MLS policy enabled.
|
||||
+
|
||||
+To use ssh-keycat, set these options in /etc/ssh/sshd_config file:
|
||||
+ AuthorizedKeysCommand /usr/libexec/openssh/ssh-keycat
|
||||
+ AuthorizedKeysCommandUser root
|
||||
+
|
||||
+Do not forget to enable public key authentication:
|
||||
+ PubkeyAuthentication yes
|
||||
+
|
||||
+
|
||||
diff -up openssh/Makefile.in.keycat openssh/Makefile.in
|
||||
--- openssh/Makefile.in.keycat 2015-06-24 10:57:50.152849621 +0200
|
||||
+++ openssh/Makefile.in 2015-06-24 10:57:50.157849608 +0200
|
||||
@@ -27,6 +27,7 @@ SFTP_SERVER=$(libexecdir)/sftp-server
|
||||
ASKPASS_PROGRAM=$(libexecdir)/ssh-askpass
|
||||
SFTP_SERVER=$(libexecdir)/sftp-server
|
||||
SSH_KEYSIGN=$(libexecdir)/ssh-keysign
|
||||
+SSH_KEYCAT=$(libexecdir)/ssh-keycat
|
||||
SSH_PKCS11_HELPER=$(libexecdir)/ssh-pkcs11-helper
|
||||
SSH_SK_HELPER=$(libexecdir)/ssh-sk-helper
|
||||
PRIVSEP_PATH=@PRIVSEP_PATH@
|
||||
@@ -52,6 +52,7 @@ K5LIBS=@K5LIBS@
|
||||
K5LIBS=@K5LIBS@
|
||||
GSSLIBS=@GSSLIBS@
|
||||
SSHDLIBS=@SSHDLIBS@
|
||||
+KEYCATLIBS=@KEYCATLIBS@
|
||||
LIBEDIT=@LIBEDIT@
|
||||
LIBFIDO2=@LIBFIDO2@
|
||||
AR=@AR@
|
||||
@@ -65,7 +66,7 @@ EXEEXT=@EXEEXT@
|
||||
|
||||
.SUFFIXES: .lo
|
||||
|
||||
-TARGETS=ssh$(EXEEXT) sshd$(EXEEXT) ssh-add$(EXEEXT) ssh-keygen$(EXEEXT) ssh-keyscan${EXEEXT} ssh-keysign${EXEEXT} ssh-pkcs11-helper$(EXEEXT) ssh-agent$(EXEEXT) scp$(EXEEXT) sftp-server$(EXEEXT) sftp$(EXEEXT) ssh-sk-helper$(EXEEXT)
|
||||
+TARGETS=ssh$(EXEEXT) sshd$(EXEEXT) ssh-add$(EXEEXT) ssh-keygen$(EXEEXT) ssh-keyscan${EXEEXT} ssh-keysign${EXEEXT} ssh-pkcs11-helper$(EXEEXT) ssh-agent$(EXEEXT) scp$(EXEEXT) sftp-server$(EXEEXT) sftp$(EXEEXT) ssh-sk-helper$(EXEEXT) ssh-keycat$(EXEEXT)
|
||||
|
||||
XMSS_OBJS=\
|
||||
ssh-xmss.o \
|
||||
@@ -190,6 +191,9 @@ ssh-pkcs11-helper$(EXEEXT): $(LIBCOMPAT)
|
||||
ssh-sk-helper$(EXEEXT): $(LIBCOMPAT) libssh.a $(SKHELPER_OBJS)
|
||||
$(LD) -o $@ $(SKHELPER_OBJS) $(LDFLAGS) -lssh -lopenbsd-compat -lssh -lopenbsd-compat $(LIBS) $(LIBFIDO2)
|
||||
|
||||
+ssh-keycat$(EXEEXT): $(LIBCOMPAT) $(SSHDOBJS) libssh.a ssh-keycat.o uidswap.o
|
||||
+ $(LD) -o $@ ssh-keycat.o uidswap.o $(LDFLAGS) -lssh -lopenbsd-compat $(KEYCATLIBS) $(LIBS)
|
||||
+
|
||||
ssh-keyscan$(EXEEXT): $(LIBCOMPAT) libssh.a $(SSHKEYSCAN_OBJS)
|
||||
$(LD) -o $@ $(SSHKEYSCAN_OBJS) $(LDFLAGS) -lssh -lopenbsd-compat -lssh $(LIBS)
|
||||
|
||||
@@ -321,6 +325,7 @@ install-files:
|
||||
$(INSTALL) -m 4711 $(STRIP_OPT) ssh-keysign$(EXEEXT) $(DESTDIR)$(SSH_KEYSIGN)$(EXEEXT)
|
||||
$(INSTALL) -m 0755 $(STRIP_OPT) ssh-pkcs11-helper$(EXEEXT) $(DESTDIR)$(SSH_PKCS11_HELPER)$(EXEEXT)
|
||||
$(INSTALL) -m 0755 $(STRIP_OPT) ssh-sk-helper$(EXEEXT) $(DESTDIR)$(SSH_SK_HELPER)$(EXEEXT)
|
||||
+ $(INSTALL) -m 0755 $(STRIP_OPT) ssh-keycat$(EXEEXT) $(DESTDIR)$(libexecdir)/ssh-keycat$(EXEEXT)
|
||||
$(INSTALL) -m 0755 $(STRIP_OPT) sftp$(EXEEXT) $(DESTDIR)$(bindir)/sftp$(EXEEXT)
|
||||
$(INSTALL) -m 0755 $(STRIP_OPT) sftp-server$(EXEEXT) $(DESTDIR)$(SFTP_SERVER)$(EXEEXT)
|
||||
$(INSTALL) -m 644 ssh.1.out $(DESTDIR)$(mandir)/$(mansubdir)1/ssh.1
|
||||
diff -up openssh/openbsd-compat/port-linux.h.keycat openssh/openbsd-compat/port-linux.h
|
||||
--- openssh/openbsd-compat/port-linux.h.keycat 2015-06-24 10:57:50.150849626 +0200
|
||||
+++ openssh/openbsd-compat/port-linux.h 2015-06-24 10:57:50.160849601 +0200
|
||||
@@ -25,8 +25,10 @@ void ssh_selinux_setup_pty(char *, const
|
||||
void ssh_selinux_change_context(const char *);
|
||||
void ssh_selinux_setfscreatecon(const char *);
|
||||
|
||||
+int sshd_selinux_enabled(void);
|
||||
void sshd_selinux_copy_context(void);
|
||||
void sshd_selinux_setup_exec_context(char *);
|
||||
+int sshd_selinux_setup_env_variables(void);
|
||||
#endif
|
||||
|
||||
#ifdef LINUX_OOM_ADJUST
|
||||
diff -up openssh/openbsd-compat/port-linux-sshd.c.keycat openssh/openbsd-compat/port-linux-sshd.c
|
||||
--- openssh/openbsd-compat/port-linux-sshd.c.keycat 2015-06-24 10:57:50.150849626 +0200
|
||||
+++ openssh/openbsd-compat/port-linux-sshd.c 2015-06-24 10:57:50.159849603 +0200
|
||||
@@ -54,6 +54,20 @@ extern Authctxt *the_authctxt;
|
||||
extern int inetd_flag;
|
||||
extern int rexeced_flag;
|
||||
|
||||
+/* Wrapper around is_selinux_enabled() to log its return value once only */
|
||||
+int
|
||||
+sshd_selinux_enabled(void)
|
||||
+{
|
||||
+ static int enabled = -1;
|
||||
+
|
||||
+ if (enabled == -1) {
|
||||
+ enabled = (is_selinux_enabled() == 1);
|
||||
+ debug("SELinux support %s", enabled ? "enabled" : "disabled");
|
||||
+ }
|
||||
+
|
||||
+ return (enabled);
|
||||
+}
|
||||
+
|
||||
/* Send audit message */
|
||||
static int
|
||||
sshd_selinux_send_audit_message(int success, security_context_t default_context,
|
||||
@@ -308,7 +322,7 @@ sshd_selinux_getctxbyname(char *pwname,
|
||||
|
||||
/* Setup environment variables for pam_selinux */
|
||||
static int
|
||||
-sshd_selinux_setup_pam_variables(void)
|
||||
+sshd_selinux_setup_variables(int(*set_it)(char *, const char *))
|
||||
{
|
||||
const char *reqlvl;
|
||||
char *role;
|
||||
@@ -319,16 +333,16 @@ sshd_selinux_setup_pam_variables(void)
|
||||
|
||||
ssh_selinux_get_role_level(&role, &reqlvl);
|
||||
|
||||
- rv = do_pam_putenv("SELINUX_ROLE_REQUESTED", role ? role : "");
|
||||
+ rv = set_it("SELINUX_ROLE_REQUESTED", role ? role : "");
|
||||
|
||||
if (inetd_flag && !rexeced_flag) {
|
||||
use_current = "1";
|
||||
} else {
|
||||
use_current = "";
|
||||
- rv = rv || do_pam_putenv("SELINUX_LEVEL_REQUESTED", reqlvl ? reqlvl: "");
|
||||
+ rv = rv || set_it("SELINUX_LEVEL_REQUESTED", reqlvl ? reqlvl: "");
|
||||
}
|
||||
|
||||
- rv = rv || do_pam_putenv("SELINUX_USE_CURRENT_RANGE", use_current);
|
||||
+ rv = rv || set_it("SELINUX_USE_CURRENT_RANGE", use_current);
|
||||
|
||||
if (role != NULL)
|
||||
free(role);
|
||||
@@ -336,6 +350,24 @@ sshd_selinux_setup_pam_variables(void)
|
||||
return rv;
|
||||
}
|
||||
|
||||
+static int
|
||||
+sshd_selinux_setup_pam_variables(void)
|
||||
+{
|
||||
+ return sshd_selinux_setup_variables(do_pam_putenv);
|
||||
+}
|
||||
+
|
||||
+static int
|
||||
+do_setenv(char *name, const char *value)
|
||||
+{
|
||||
+ return setenv(name, value, 1);
|
||||
+}
|
||||
+
|
||||
+int
|
||||
+sshd_selinux_setup_env_variables(void)
|
||||
+{
|
||||
+ return sshd_selinux_setup_variables(do_setenv);
|
||||
+}
|
||||
+
|
||||
/* Set the execution context to the default for the specified user */
|
||||
void
|
||||
sshd_selinux_setup_exec_context(char *pwname)
|
||||
@@ -344,7 +376,7 @@ sshd_selinux_setup_exec_context(char *pw
|
||||
int r = 0;
|
||||
security_context_t default_ctx = NULL;
|
||||
|
||||
- if (!ssh_selinux_enabled())
|
||||
+ if (!sshd_selinux_enabled())
|
||||
return;
|
||||
|
||||
if (options.use_pam) {
|
||||
@@ -415,7 +447,7 @@ sshd_selinux_copy_context(void)
|
||||
{
|
||||
security_context_t *ctx;
|
||||
|
||||
- if (!ssh_selinux_enabled())
|
||||
+ if (!sshd_selinux_enabled())
|
||||
return;
|
||||
|
||||
if (getexeccon((security_context_t *)&ctx) != 0) {
|
||||
diff -up openssh/platform.c.keycat openssh/platform.c
|
||||
--- openssh/platform.c.keycat 2015-06-24 10:57:50.147849633 +0200
|
||||
+++ openssh/platform.c 2015-06-24 10:57:50.160849601 +0200
|
||||
@@ -103,7 +103,7 @@ platform_setusercontext(struct passwd *p
|
||||
{
|
||||
#ifdef WITH_SELINUX
|
||||
/* Cache selinux status for later use */
|
||||
- (void)ssh_selinux_enabled();
|
||||
+ (void)sshd_selinux_enabled();
|
||||
#endif
|
||||
|
||||
#ifdef USE_SOLARIS_PROJECTS
|
||||
diff -up openssh/ssh-keycat.c.keycat openssh/ssh-keycat.c
|
||||
--- openssh/ssh-keycat.c.keycat 2015-06-24 10:57:50.161849599 +0200
|
||||
+++ openssh/ssh-keycat.c 2015-06-24 10:57:50.161849599 +0200
|
||||
@@ -0,0 +1,241 @@
|
||||
+/*
|
||||
+ * Redistribution and use in source and binary forms, with or without
|
||||
+ * modification, are permitted provided that the following conditions
|
||||
+ * are met:
|
||||
+ * 1. Redistributions of source code must retain the above copyright
|
||||
+ * notice, and the entire permission notice in its entirety,
|
||||
+ * including the disclaimer of warranties.
|
||||
+ * 2. Redistributions in binary form must reproduce the above copyright
|
||||
+ * notice, this list of conditions and the following disclaimer in the
|
||||
+ * documentation and/or other materials provided with the distribution.
|
||||
+ * 3. The name of the author may not be used to endorse or promote
|
||||
+ * products derived from this software without specific prior
|
||||
+ * written permission.
|
||||
+ *
|
||||
+ * ALTERNATIVELY, this product may be distributed under the terms of
|
||||
+ * the GNU Public License, in which case the provisions of the GPL are
|
||||
+ * required INSTEAD OF the above restrictions. (This clause is
|
||||
+ * necessary due to a potential bad interaction between the GPL and
|
||||
+ * the restrictions contained in a BSD-style copyright.)
|
||||
+ *
|
||||
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
||||
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
|
||||
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||||
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
||||
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
+ */
|
||||
+
|
||||
+/*
|
||||
+ * Copyright (c) 2011 Red Hat, Inc.
|
||||
+ * Written by Tomas Mraz <tmraz@redhat.com>
|
||||
+*/
|
||||
+
|
||||
+#define _GNU_SOURCE
|
||||
+
|
||||
+#include "config.h"
|
||||
+#include <stdio.h>
|
||||
+#include <stdlib.h>
|
||||
+#include <string.h>
|
||||
+#include <sys/types.h>
|
||||
+#include <sys/stat.h>
|
||||
+#include <pwd.h>
|
||||
+#include <fcntl.h>
|
||||
+#include <unistd.h>
|
||||
+#ifdef HAVE_STDINT_H
|
||||
+#include <stdint.h>
|
||||
+#endif
|
||||
+
|
||||
+#include <security/pam_appl.h>
|
||||
+
|
||||
+#include "uidswap.h"
|
||||
+#include "misc.h"
|
||||
+
|
||||
+#define ERR_USAGE 1
|
||||
+#define ERR_PAM_START 2
|
||||
+#define ERR_OPEN_SESSION 3
|
||||
+#define ERR_CLOSE_SESSION 4
|
||||
+#define ERR_PAM_END 5
|
||||
+#define ERR_GETPWNAM 6
|
||||
+#define ERR_MEMORY 7
|
||||
+#define ERR_OPEN 8
|
||||
+#define ERR_FILE_MODE 9
|
||||
+#define ERR_FDOPEN 10
|
||||
+#define ERR_STAT 11
|
||||
+#define ERR_WRITE 12
|
||||
+#define ERR_PAM_PUTENV 13
|
||||
+#define BUFLEN 4096
|
||||
+
|
||||
+/* Just ignore the messages in the conversation function */
|
||||
+static int
|
||||
+dummy_conv(int num_msg, const struct pam_message **msgm,
|
||||
+ struct pam_response **response, void *appdata_ptr)
|
||||
+{
|
||||
+ struct pam_response *rsp;
|
||||
+
|
||||
+ (void)msgm;
|
||||
+ (void)appdata_ptr;
|
||||
+
|
||||
+ if (num_msg <= 0)
|
||||
+ return PAM_CONV_ERR;
|
||||
+
|
||||
+ /* Just allocate the array as empty responses */
|
||||
+ rsp = calloc (num_msg, sizeof (struct pam_response));
|
||||
+ if (rsp == NULL)
|
||||
+ return PAM_CONV_ERR;
|
||||
+
|
||||
+ *response = rsp;
|
||||
+ return PAM_SUCCESS;
|
||||
+}
|
||||
+
|
||||
+static struct pam_conv conv = {
|
||||
+ dummy_conv,
|
||||
+ NULL
|
||||
+};
|
||||
+
|
||||
+char *
|
||||
+make_auth_keys_name(const struct passwd *pwd)
|
||||
+{
|
||||
+ char *fname;
|
||||
+
|
||||
+ if (asprintf(&fname, "%s/.ssh/authorized_keys", pwd->pw_dir) < 0)
|
||||
+ return NULL;
|
||||
+
|
||||
+ return fname;
|
||||
+}
|
||||
+
|
||||
+int
|
||||
+dump_keys(const char *user)
|
||||
+{
|
||||
+ struct passwd *pwd;
|
||||
+ int fd = -1;
|
||||
+ FILE *f = NULL;
|
||||
+ char *fname = NULL;
|
||||
+ int rv = 0;
|
||||
+ char buf[BUFLEN];
|
||||
+ size_t len;
|
||||
+ struct stat st;
|
||||
+
|
||||
+ if ((pwd = getpwnam(user)) == NULL) {
|
||||
+ return ERR_GETPWNAM;
|
||||
+ }
|
||||
+
|
||||
+ if ((fname = make_auth_keys_name(pwd)) == NULL) {
|
||||
+ return ERR_MEMORY;
|
||||
+ }
|
||||
+
|
||||
+ temporarily_use_uid(pwd);
|
||||
+
|
||||
+ if ((fd = open(fname, O_RDONLY|O_NONBLOCK|O_NOFOLLOW, 0)) < 0) {
|
||||
+ rv = ERR_OPEN;
|
||||
+ goto fail;
|
||||
+ }
|
||||
+
|
||||
+ if (fstat(fd, &st) < 0) {
|
||||
+ rv = ERR_STAT;
|
||||
+ goto fail;
|
||||
+ }
|
||||
+
|
||||
+ if (!S_ISREG(st.st_mode) ||
|
||||
+ (st.st_uid != pwd->pw_uid && st.st_uid != 0)) {
|
||||
+ rv = ERR_FILE_MODE;
|
||||
+ goto fail;
|
||||
+ }
|
||||
+
|
||||
+ unset_nonblock(fd);
|
||||
+
|
||||
+ if ((f = fdopen(fd, "r")) == NULL) {
|
||||
+ rv = ERR_FDOPEN;
|
||||
+ goto fail;
|
||||
+ }
|
||||
+
|
||||
+ fd = -1;
|
||||
+
|
||||
+ while ((len = fread(buf, 1, sizeof(buf), f)) > 0) {
|
||||
+ rv = fwrite(buf, 1, len, stdout) != len ? ERR_WRITE : 0;
|
||||
+ }
|
||||
+
|
||||
+fail:
|
||||
+ if (fd != -1)
|
||||
+ close(fd);
|
||||
+ if (f != NULL)
|
||||
+ fclose(f);
|
||||
+ free(fname);
|
||||
+ restore_uid();
|
||||
+ return rv;
|
||||
+}
|
||||
+
|
||||
+static const char *env_names[] = { "SELINUX_ROLE_REQUESTED",
|
||||
+ "SELINUX_LEVEL_REQUESTED",
|
||||
+ "SELINUX_USE_CURRENT_RANGE"
|
||||
+};
|
||||
+
|
||||
+extern char **environ;
|
||||
+
|
||||
+int
|
||||
+set_pam_environment(pam_handle_t *pamh)
|
||||
+{
|
||||
+ int i;
|
||||
+ size_t j;
|
||||
+
|
||||
+ for (j = 0; j < sizeof(env_names)/sizeof(env_names[0]); ++j) {
|
||||
+ int len = strlen(env_names[j]);
|
||||
+
|
||||
+ for (i = 0; environ[i] != NULL; ++i) {
|
||||
+ if (strncmp(env_names[j], environ[i], len) == 0 &&
|
||||
+ environ[i][len] == '=') {
|
||||
+ if (pam_putenv(pamh, environ[i]) != PAM_SUCCESS)
|
||||
+ return ERR_PAM_PUTENV;
|
||||
+ }
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+int
|
||||
+main(int argc, char *argv[])
|
||||
+{
|
||||
+ pam_handle_t *pamh = NULL;
|
||||
+ int retval;
|
||||
+ int ev = 0;
|
||||
+
|
||||
+ if (argc != 2) {
|
||||
+ fprintf(stderr, "Usage: %s <user-name>\n", argv[0]);
|
||||
+ return ERR_USAGE;
|
||||
+ }
|
||||
+
|
||||
+ retval = pam_start("ssh-keycat", argv[1], &conv, &pamh);
|
||||
+ if (retval != PAM_SUCCESS) {
|
||||
+ return ERR_PAM_START;
|
||||
+ }
|
||||
+
|
||||
+ ev = set_pam_environment(pamh);
|
||||
+ if (ev != 0)
|
||||
+ goto finish;
|
||||
+
|
||||
+ retval = pam_open_session(pamh, PAM_SILENT);
|
||||
+ if (retval != PAM_SUCCESS) {
|
||||
+ ev = ERR_OPEN_SESSION;
|
||||
+ goto finish;
|
||||
+ }
|
||||
+
|
||||
+ ev = dump_keys(argv[1]);
|
||||
+
|
||||
+ retval = pam_close_session(pamh, PAM_SILENT);
|
||||
+ if (retval != PAM_SUCCESS) {
|
||||
+ ev = ERR_CLOSE_SESSION;
|
||||
+ }
|
||||
+
|
||||
+finish:
|
||||
+ retval = pam_end (pamh,retval);
|
||||
+ if (retval != PAM_SUCCESS) {
|
||||
+ ev = ERR_PAM_END;
|
||||
+ }
|
||||
+ return ev;
|
||||
+}
|
||||
diff --git a/configure.ac b/configure.ac
|
||||
index 3bbccfd..6481f1f 100644
|
||||
--- a/configure.ac
|
||||
+++ b/configure.ac
|
||||
@@ -2952,6 +2952,7 @@ AC_ARG_WITH([pam],
|
||||
PAM_MSG="yes"
|
||||
|
||||
SSHDLIBS="$SSHDLIBS -lpam"
|
||||
+ KEYCATLIBS="$KEYCATLIBS -lpam"
|
||||
AC_DEFINE([USE_PAM], [1],
|
||||
[Define if you want to enable PAM support])
|
||||
|
||||
@@ -3105,6 +3106,7 @@
|
||||
;;
|
||||
*)
|
||||
SSHDLIBS="$SSHDLIBS -ldl"
|
||||
+ KEYCATLIBS="$KEYCATLIBS -ldl"
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
@@ -4042,6 +4044,7 @@ AC_ARG_WITH([selinux],
|
||||
fi ]
|
||||
)
|
||||
AC_SUBST([SSHDLIBS])
|
||||
+AC_SUBST([KEYCATLIBS])
|
||||
|
||||
# Check whether user wants Kerberos 5 support
|
||||
KRB5_MSG="no"
|
||||
@@ -5031,6 +5034,9 @@ fi
|
||||
if test ! -z "${SSHDLIBS}"; then
|
||||
echo " +for sshd: ${SSHDLIBS}"
|
||||
fi
|
||||
+if test ! -z "${KEYCATLIBS}"; then
|
||||
+echo " +for ssh-keycat: ${KEYCATLIBS}"
|
||||
+fi
|
||||
|
||||
echo ""
|
||||
|
@ -1,31 +0,0 @@
|
||||
diff -up openssh-8.2p1/authfile.c.keyperm openssh-8.2p1/authfile.c
|
||||
--- openssh-8.2p1/authfile.c.keyperm 2020-02-14 01:40:54.000000000 +0100
|
||||
+++ openssh-8.2p1/authfile.c 2020-02-17 11:55:12.841729758 +0100
|
||||
@@ -31,6 +31,7 @@
|
||||
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
+#include <grp.h>
|
||||
#include <stdio.h>
|
||||
#include <stdarg.h>
|
||||
#include <stdlib.h>
|
||||
@@ -101,7 +102,19 @@ sshkey_perm_ok(int fd, const char *filen
|
||||
#ifdef HAVE_CYGWIN
|
||||
if (check_ntsec(filename))
|
||||
#endif
|
||||
+
|
||||
if ((st.st_uid == getuid()) && (st.st_mode & 077) != 0) {
|
||||
+ if (st.st_mode & 040) {
|
||||
+ struct group *gr;
|
||||
+
|
||||
+ if ((gr = getgrnam("ssh_keys")) && (st.st_gid == gr->gr_gid)) {
|
||||
+ /* The only additional bit is read
|
||||
+ * for ssh_keys group, which is fine */
|
||||
+ if ((st.st_mode & 077) == 040 ) {
|
||||
+ return 0;
|
||||
+ }
|
||||
+ }
|
||||
+ }
|
||||
error("@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@");
|
||||
error("@ WARNING: UNPROTECTED PRIVATE KEY FILE! @");
|
||||
error("@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@");
|
@ -1,289 +0,0 @@
|
||||
diff -up openssh-7.4p1/auth-krb5.c.kuserok openssh-7.4p1/auth-krb5.c
|
||||
--- openssh-7.4p1/auth-krb5.c.kuserok 2016-12-23 14:36:07.640465939 +0100
|
||||
+++ openssh-7.4p1/auth-krb5.c 2016-12-23 14:36:07.644465936 +0100
|
||||
@@ -56,6 +56,21 @@
|
||||
|
||||
extern ServerOptions options;
|
||||
|
||||
+int
|
||||
+ssh_krb5_kuserok(krb5_context krb5_ctx, krb5_principal krb5_user, const char *client,
|
||||
+ int k5login_exists)
|
||||
+{
|
||||
+ if (options.use_kuserok || !k5login_exists)
|
||||
+ return krb5_kuserok(krb5_ctx, krb5_user, client);
|
||||
+ else {
|
||||
+ char kuser[65];
|
||||
+
|
||||
+ if (krb5_aname_to_localname(krb5_ctx, krb5_user, sizeof(kuser), kuser))
|
||||
+ return 0;
|
||||
+ return strcmp(kuser, client) == 0;
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
static int
|
||||
krb5_init(void *context)
|
||||
{
|
||||
@@ -160,8 +175,9 @@ auth_krb5_password(Authctxt *authctxt, c
|
||||
if (problem)
|
||||
goto out;
|
||||
|
||||
- if (!krb5_kuserok(authctxt->krb5_ctx, authctxt->krb5_user,
|
||||
- authctxt->pw->pw_name)) {
|
||||
+ /* Use !options.use_kuserok here to make ssh_krb5_kuserok() not
|
||||
+ * depend on the existance of .k5login */
|
||||
+ if (!ssh_krb5_kuserok(authctxt->krb5_ctx, authctxt->krb5_user, authctxt->pw->pw_name, !options.use_kuserok)) {
|
||||
problem = -1;
|
||||
goto out;
|
||||
}
|
||||
diff -up openssh-7.4p1/gss-serv-krb5.c.kuserok openssh-7.4p1/gss-serv-krb5.c
|
||||
--- openssh-7.4p1/gss-serv-krb5.c.kuserok 2016-12-23 14:36:07.640465939 +0100
|
||||
+++ openssh-7.4p1/gss-serv-krb5.c 2016-12-23 14:36:07.644465936 +0100
|
||||
@@ -67,6 +67,7 @@ static int ssh_gssapi_krb5_cmdok(krb5_pr
|
||||
int);
|
||||
|
||||
static krb5_context krb_context = NULL;
|
||||
+extern int ssh_krb5_kuserok(krb5_context, krb5_principal, const char *, int);
|
||||
|
||||
/* Initialise the krb5 library, for the stuff that GSSAPI won't do */
|
||||
|
||||
@@ -92,6 +93,103 @@ ssh_gssapi_krb5_init(void)
|
||||
* Returns true if the user is OK to log in, otherwise returns 0
|
||||
*/
|
||||
|
||||
+/* The purpose of the function is to find out if a Kerberos principal is
|
||||
+ * allowed to log in as the given local user. This is a general problem with
|
||||
+ * Kerberized services because by design the Kerberos principals are
|
||||
+ * completely independent from the local user names. This is one of the
|
||||
+ * reasons why Kerberos is working well on different operating systems like
|
||||
+ * Windows and UNIX/Linux. Nevertheless a relationship between a Kerberos
|
||||
+ * principal and a local user name must be established because otherwise every
|
||||
+ * access would be granted for every principal with a valid ticket.
|
||||
+ *
|
||||
+ * Since it is a general issue libkrb5 provides some functions for
|
||||
+ * applications to find out about the relationship between the Kerberos
|
||||
+ * principal and a local user name. They are krb5_kuserok() and
|
||||
+ * krb5_aname_to_localname().
|
||||
+ *
|
||||
+ * krb5_kuserok() can be used to "Determine if a principal is authorized to
|
||||
+ * log in as a local user" (from the MIT Kerberos documentation of this
|
||||
+ * function). Which is exactly what we are looking for and should be the
|
||||
+ * preferred choice. It accepts the Kerberos principal and a local user name
|
||||
+ * and let libkrb5 or its plugins determine if they relate to each other or
|
||||
+ * not.
|
||||
+ *
|
||||
+ * krb5_aname_to_localname() can use used to "Convert a principal name to a
|
||||
+ * local name" (from the MIT Kerberos documentation of this function). It
|
||||
+ * accepts a Kerberos principle and returns a local name and it is up to the
|
||||
+ * application to do any additional checks. There are two issues using
|
||||
+ * krb5_aname_to_localname(). First, since POSIX user names are case
|
||||
+ * sensitive, the calling application in general has no other choice than
|
||||
+ * doing a case-sensitive string comparison between the name returned by
|
||||
+ * krb5_aname_to_localname() and the name used at the login prompt. When the
|
||||
+ * users are provided by a case in-sensitive server, e.g. Active Directory,
|
||||
+ * this might lead to login failures because the user typing the name at the
|
||||
+ * login prompt might not be aware of the right case. Another issue might be
|
||||
+ * caused if there are multiple alias names available for a single user. E.g.
|
||||
+ * the canonical name of a user is user@group.department.example.com but there
|
||||
+ * exists a shorter login name, e.g. user@example.com, to safe typing at the
|
||||
+ * login prompt. Here krb5_aname_to_localname() can only return the canonical
|
||||
+ * name, but if the short alias is used at the login prompt authentication
|
||||
+ * will fail as well. All this can be avoided by using krb5_kuserok() and
|
||||
+ * configuring krb5.conf or using a suitable plugin to meet the needs of the
|
||||
+ * given environment.
|
||||
+ *
|
||||
+ * The Fedora and RHEL version of openssh contain two patches which modify the
|
||||
+ * access control behavior:
|
||||
+ * - openssh-6.6p1-kuserok.patch
|
||||
+ * - openssh-6.6p1-force_krb.patch
|
||||
+ *
|
||||
+ * openssh-6.6p1-kuserok.patch adds a new option KerberosUseKuserok for
|
||||
+ * sshd_config which controls if krb5_kuserok() is used to check if the
|
||||
+ * principle is authorized or if krb5_aname_to_localname() should be used.
|
||||
+ * The reason to add this patch was that krb5_kuserok() by default checks if
|
||||
+ * a .k5login file exits in the users home-directory. With this the user can
|
||||
+ * give access to his account for any given principal which might be
|
||||
+ * in violation with company policies and it would be useful if this can be
|
||||
+ * rejected. Nevertheless the patch ignores the fact that krb5_kuserok() does
|
||||
+ * no only check .k5login but other sources as well and checking .k5login can
|
||||
+ * be disabled for all applications in krb5.conf as well. With this new
|
||||
+ * option KerberosUseKuserok set to 'no' (and this is the default for RHEL7
|
||||
+ * and Fedora 21) openssh can only use krb5_aname_to_localname() with the
|
||||
+ * restrictions mentioned above.
|
||||
+ *
|
||||
+ * openssh-6.6p1-force_krb.patch adds a ksu like behaviour to ssh, i.e. when
|
||||
+ * using GSSAPI authentication only commands configured in the .k5user can be
|
||||
+ * executed. Here the wrong assumption that krb5_kuserok() only checks
|
||||
+ * .k5login is made as well. In contrast ksu checks .k5login directly and
|
||||
+ * does not use krb5_kuserok() which might be more useful for the given
|
||||
+ * purpose. Additionally this patch is not synced with
|
||||
+ * openssh-6.6p1-kuserok.patch.
|
||||
+ *
|
||||
+ * The current patch tries to restore the usage of krb5_kuserok() so that e.g.
|
||||
+ * localauth plugins can be used. It does so by adding a forth parameter to
|
||||
+ * ssh_krb5_kuserok() which indicates whether .k5login exists or not. If it
|
||||
+ * does not exists krb5_kuserok() is called even if KerberosUseKuserok is set
|
||||
+ * to 'no' because the intent of the option is to not check .k5login and if it
|
||||
+ * does not exists krb5_kuserok() returns a result without checking .k5login.
|
||||
+ * If .k5login does exists and KerberosUseKuserok is 'no' we fall back to
|
||||
+ * krb5_aname_to_localname(). This is in my point of view an acceptable
|
||||
+ * limitation and does not break the current behaviour.
|
||||
+ *
|
||||
+ * Additionally with this patch ssh_krb5_kuserok() is called in
|
||||
+ * ssh_gssapi_krb5_cmdok() instead of only krb5_aname_to_localname() is
|
||||
+ * neither .k5login nor .k5users exists to allow plugin evaluation via
|
||||
+ * krb5_kuserok() as well.
|
||||
+ *
|
||||
+ * I tried to keep the patch as minimal as possible, nevertheless I see some
|
||||
+ * areas for improvement which, if they make sense, have to be evaluated
|
||||
+ * carefully because they might change existing behaviour and cause breaks
|
||||
+ * during upgrade:
|
||||
+ * - I wonder if disabling .k5login usage make sense in sshd or if it should
|
||||
+ * be better disabled globally in krb5.conf
|
||||
+ * - if really needed openssh-6.6p1-kuserok.patch should be fixed to really
|
||||
+ * only disable checking .k5login and maybe .k5users
|
||||
+ * - the ksu behaviour should be configurable and maybe check the .k5login and
|
||||
+ * .k5users files directly like ksu itself does
|
||||
+ * - to make krb5_aname_to_localname() more useful an option for sshd to use
|
||||
+ * the canonical name (the one returned by getpwnam()) instead of the name
|
||||
+ * given at the login prompt might be useful */
|
||||
+
|
||||
static int
|
||||
ssh_gssapi_krb5_userok(ssh_gssapi_client *client, char *name)
|
||||
{
|
||||
@@ -116,7 +214,8 @@ ssh_gssapi_krb5_userok(ssh_gssapi_client
|
||||
/* NOTE: .k5login and .k5users must opened as root, not the user,
|
||||
* because if they are on a krb5-protected filesystem, user credentials
|
||||
* to access these files aren't available yet. */
|
||||
- if (krb5_kuserok(krb_context, princ, name) && k5login_exists) {
|
||||
+ if (ssh_krb5_kuserok(krb_context, princ, name, k5login_exists)
|
||||
+ && k5login_exists) {
|
||||
retval = 1;
|
||||
logit("Authorized to %s, krb5 principal %s (krb5_kuserok)",
|
||||
name, (char *)client->displayname.value);
|
||||
@@ -190,9 +289,8 @@ ssh_gssapi_krb5_cmdok(krb5_principal pri
|
||||
snprintf(file, sizeof(file), "%s/.k5users", pw->pw_dir);
|
||||
/* If both .k5login and .k5users DNE, self-login is ok. */
|
||||
if (!k5login_exists && (access(file, F_OK) == -1)) {
|
||||
- return (krb5_aname_to_localname(krb_context, principal,
|
||||
- sizeof(kuser), kuser) == 0) &&
|
||||
- (strcmp(kuser, luser) == 0);
|
||||
+ return ssh_krb5_kuserok(krb_context, principal, luser,
|
||||
+ k5login_exists);
|
||||
}
|
||||
if ((fp = fopen(file, "r")) == NULL) {
|
||||
int saved_errno = errno;
|
||||
diff -up openssh-7.4p1/servconf.c.kuserok openssh-7.4p1/servconf.c
|
||||
--- openssh-7.4p1/servconf.c.kuserok 2016-12-23 14:36:07.630465944 +0100
|
||||
+++ openssh-7.4p1/servconf.c 2016-12-23 15:11:52.278133344 +0100
|
||||
@@ -116,6 +116,7 @@ initialize_server_options(ServerOptions
|
||||
options->gss_strict_acceptor = -1;
|
||||
options->gss_store_rekey = -1;
|
||||
options->gss_kex_algorithms = NULL;
|
||||
+ options->use_kuserok = -1;
|
||||
options->password_authentication = -1;
|
||||
options->kbd_interactive_authentication = -1;
|
||||
options->challenge_response_authentication = -1;
|
||||
@@ -278,6 +279,8 @@ fill_default_server_options(ServerOption
|
||||
if (options->gss_kex_algorithms == NULL)
|
||||
options->gss_kex_algorithms = strdup(GSS_KEX_DEFAULT_KEX);
|
||||
#endif
|
||||
+ if (options->use_kuserok == -1)
|
||||
+ options->use_kuserok = 1;
|
||||
if (options->password_authentication == -1)
|
||||
options->password_authentication = 1;
|
||||
if (options->kbd_interactive_authentication == -1)
|
||||
@@ -399,7 +402,7 @@ typedef enum {
|
||||
sPermitRootLogin, sLogFacility, sLogLevel,
|
||||
sRhostsRSAAuthentication, sRSAAuthentication,
|
||||
sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
|
||||
- sKerberosGetAFSToken, sKerberosUniqueCCache,
|
||||
+ sKerberosGetAFSToken, sKerberosUniqueCCache, sKerberosUseKuserok,
|
||||
sChallengeResponseAuthentication,
|
||||
sPasswordAuthentication, sKbdInteractiveAuthentication,
|
||||
sListenAddress, sAddressFamily,
|
||||
@@ -478,12 +481,14 @@ static struct {
|
||||
{ "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL },
|
||||
#endif
|
||||
{ "kerberosuniqueccache", sKerberosUniqueCCache, SSHCFG_GLOBAL },
|
||||
+ { "kerberosusekuserok", sKerberosUseKuserok, SSHCFG_ALL },
|
||||
#else
|
||||
{ "kerberosauthentication", sUnsupported, SSHCFG_ALL },
|
||||
{ "kerberosorlocalpasswd", sUnsupported, SSHCFG_GLOBAL },
|
||||
{ "kerberosticketcleanup", sUnsupported, SSHCFG_GLOBAL },
|
||||
{ "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL },
|
||||
{ "kerberosuniqueccache", sUnsupported, SSHCFG_GLOBAL },
|
||||
+ { "kerberosusekuserok", sUnsupported, SSHCFG_ALL },
|
||||
#endif
|
||||
{ "kerberostgtpassing", sUnsupported, SSHCFG_GLOBAL },
|
||||
{ "afstokenpassing", sUnsupported, SSHCFG_GLOBAL },
|
||||
@@ -1644,6 +1649,10 @@ process_server_config_line(ServerOptions
|
||||
*inc_flags &= ~SSHCFG_MATCH_ONLY;
|
||||
break;
|
||||
|
||||
+ case sKerberosUseKuserok:
|
||||
+ intptr = &options->use_kuserok;
|
||||
+ goto parse_flag;
|
||||
+
|
||||
case sPermitListen:
|
||||
case sPermitOpen:
|
||||
if (opcode == sPermitListen) {
|
||||
@@ -2016,6 +2025,7 @@ copy_set_server_options(ServerOptions *d
|
||||
M_CP_INTOPT(client_alive_interval);
|
||||
M_CP_INTOPT(ip_qos_interactive);
|
||||
M_CP_INTOPT(ip_qos_bulk);
|
||||
+ M_CP_INTOPT(use_kuserok);
|
||||
M_CP_INTOPT(rekey_limit);
|
||||
M_CP_INTOPT(rekey_interval);
|
||||
M_CP_INTOPT(log_level);
|
||||
@@ -2309,6 +2319,7 @@ dump_config(ServerOptions *o)
|
||||
dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
|
||||
# endif
|
||||
dump_cfg_fmtint(sKerberosUniqueCCache, o->kerberos_unique_ccache);
|
||||
+ dump_cfg_fmtint(sKerberosUseKuserok, o->use_kuserok);
|
||||
#endif
|
||||
#ifdef GSSAPI
|
||||
dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
|
||||
diff -up openssh-7.4p1/servconf.h.kuserok openssh-7.4p1/servconf.h
|
||||
--- openssh-7.4p1/servconf.h.kuserok 2016-12-23 14:36:07.630465944 +0100
|
||||
+++ openssh-7.4p1/servconf.h 2016-12-23 14:36:07.645465936 +0100
|
||||
@@ -118,6 +118,7 @@ typedef struct {
|
||||
* authenticated with Kerberos. */
|
||||
int kerberos_unique_ccache; /* If true, the acquired ticket will
|
||||
* be stored in per-session ccache */
|
||||
+ int use_kuserok;
|
||||
int gss_authentication; /* If true, permit GSSAPI authentication */
|
||||
int gss_keyex; /* If true, permit GSSAPI key exchange */
|
||||
int gss_cleanup_creds; /* If true, destroy cred cache on logout */
|
||||
diff -up openssh-7.4p1/sshd_config.5.kuserok openssh-7.4p1/sshd_config.5
|
||||
--- openssh-7.4p1/sshd_config.5.kuserok 2016-12-23 14:36:07.637465940 +0100
|
||||
+++ openssh-7.4p1/sshd_config.5 2016-12-23 15:14:03.117162222 +0100
|
||||
@@ -850,6 +850,10 @@ Specifies whether to automatically destr
|
||||
.Cm no
|
||||
can lead to overwriting previous tickets by subseqent connections to the same
|
||||
user account.
|
||||
+.It Cm KerberosUseKuserok
|
||||
+Specifies whether to look at .k5login file for user's aliases.
|
||||
+The default is
|
||||
+.Cm yes .
|
||||
.It Cm KexAlgorithms
|
||||
Specifies the available KEX (Key Exchange) algorithms.
|
||||
Multiple algorithms must be comma-separated.
|
||||
@@ -1078,6 +1082,7 @@ Available keywords are
|
||||
.Cm IPQoS ,
|
||||
.Cm KbdInteractiveAuthentication ,
|
||||
.Cm KerberosAuthentication ,
|
||||
+.Cm KerberosUseKuserok ,
|
||||
.Cm LogLevel ,
|
||||
.Cm MaxAuthTries ,
|
||||
.Cm MaxSessions ,
|
||||
diff -up openssh-7.4p1/sshd_config.kuserok openssh-7.4p1/sshd_config
|
||||
--- openssh-7.4p1/sshd_config.kuserok 2016-12-23 14:36:07.631465943 +0100
|
||||
+++ openssh-7.4p1/sshd_config 2016-12-23 14:36:07.646465935 +0100
|
||||
@@ -73,6 +73,7 @@ ChallengeResponseAuthentication no
|
||||
#KerberosOrLocalPasswd yes
|
||||
#KerberosTicketCleanup yes
|
||||
#KerberosGetAFSToken no
|
||||
+#KerberosUseKuserok yes
|
||||
|
||||
# GSSAPI options
|
||||
#GSSAPIAuthentication no
|
@ -1,121 +0,0 @@
|
||||
diff -up openssh-7.4p1/openbsd-compat/port-linux.h.privsep-selinux openssh-7.4p1/openbsd-compat/port-linux.h
|
||||
--- openssh-7.4p1/openbsd-compat/port-linux.h.privsep-selinux 2016-12-23 18:58:52.972122201 +0100
|
||||
+++ openssh-7.4p1/openbsd-compat/port-linux.h 2016-12-23 18:58:52.974122201 +0100
|
||||
@@ -23,6 +23,7 @@ void ssh_selinux_setup_pty(char *, const
|
||||
void ssh_selinux_change_context(const char *);
|
||||
void ssh_selinux_setfscreatecon(const char *);
|
||||
|
||||
+void sshd_selinux_copy_context(void);
|
||||
void sshd_selinux_setup_exec_context(char *);
|
||||
#endif
|
||||
|
||||
diff -up openssh-7.4p1/openbsd-compat/port-linux-sshd.c.privsep-selinux openssh-7.4p1/openbsd-compat/port-linux-sshd.c
|
||||
--- openssh-7.4p1/openbsd-compat/port-linux-sshd.c.privsep-selinux 2016-12-23 18:58:52.973122201 +0100
|
||||
+++ openssh-7.4p1/openbsd-compat/port-linux-sshd.c 2016-12-23 18:58:52.974122201 +0100
|
||||
@@ -419,6 +419,28 @@ sshd_selinux_setup_exec_context(char *pw
|
||||
debug3("%s: done", __func__);
|
||||
}
|
||||
|
||||
+void
|
||||
+sshd_selinux_copy_context(void)
|
||||
+{
|
||||
+ security_context_t *ctx;
|
||||
+
|
||||
+ if (!ssh_selinux_enabled())
|
||||
+ return;
|
||||
+
|
||||
+ if (getexeccon((security_context_t *)&ctx) != 0) {
|
||||
+ logit("%s: getexeccon failed with %s", __func__, strerror(errno));
|
||||
+ return;
|
||||
+ }
|
||||
+ if (ctx != NULL) {
|
||||
+ /* unset exec context before we will lose this capabililty */
|
||||
+ if (setexeccon(NULL) != 0)
|
||||
+ fatal("%s: setexeccon failed with %s", __func__, strerror(errno));
|
||||
+ if (setcon(ctx) != 0)
|
||||
+ fatal("%s: setcon failed with %s", __func__, strerror(errno));
|
||||
+ freecon(ctx);
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
#endif
|
||||
#endif
|
||||
|
||||
diff -up openssh-7.4p1/session.c.privsep-selinux openssh-7.4p1/session.c
|
||||
--- openssh-7.4p1/session.c.privsep-selinux 2016-12-19 05:59:41.000000000 +0100
|
||||
+++ openssh-7.4p1/session.c 2016-12-23 18:58:52.974122201 +0100
|
||||
@@ -1331,7 +1331,7 @@ do_setusercontext(struct passwd *pw)
|
||||
|
||||
platform_setusercontext(pw);
|
||||
|
||||
- if (platform_privileged_uidswap()) {
|
||||
+ if (platform_privileged_uidswap() && (!is_child || !use_privsep)) {
|
||||
#ifdef HAVE_LOGIN_CAP
|
||||
if (setusercontext(lc, pw, pw->pw_uid,
|
||||
(LOGIN_SETALL & ~(LOGIN_SETPATH|LOGIN_SETUSER))) < 0) {
|
||||
@@ -1361,6 +1361,9 @@ do_setusercontext(struct passwd *pw)
|
||||
(unsigned long long)pw->pw_uid);
|
||||
chroot_path = percent_expand(tmp, "h", pw->pw_dir,
|
||||
"u", pw->pw_name, "U", uidstr, (char *)NULL);
|
||||
+#ifdef WITH_SELINUX
|
||||
+ sshd_selinux_copy_context();
|
||||
+#endif
|
||||
safely_chroot(chroot_path, pw->pw_uid);
|
||||
free(tmp);
|
||||
free(chroot_path);
|
||||
@@ -1396,6 +1399,11 @@ do_setusercontext(struct passwd *pw)
|
||||
/* Permanently switch to the desired uid. */
|
||||
permanently_set_uid(pw);
|
||||
#endif
|
||||
+
|
||||
+#ifdef WITH_SELINUX
|
||||
+ if (in_chroot == 0)
|
||||
+ sshd_selinux_copy_context();
|
||||
+#endif
|
||||
} else if (options.chroot_directory != NULL &&
|
||||
strcasecmp(options.chroot_directory, "none") != 0) {
|
||||
fatal("server lacks privileges to chroot to ChrootDirectory");
|
||||
@@ -1413,9 +1421,6 @@ do_pwchange(Session *s)
|
||||
if (s->ttyfd != -1) {
|
||||
fprintf(stderr,
|
||||
"You must change your password now and login again!\n");
|
||||
-#ifdef WITH_SELINUX
|
||||
- setexeccon(NULL);
|
||||
-#endif
|
||||
#ifdef PASSWD_NEEDS_USERNAME
|
||||
execl(_PATH_PASSWD_PROG, "passwd", s->pw->pw_name,
|
||||
(char *)NULL);
|
||||
@@ -1625,9 +1630,6 @@ do_child(Session *s, const char *command
|
||||
argv[i] = NULL;
|
||||
optind = optreset = 1;
|
||||
__progname = argv[0];
|
||||
-#ifdef WITH_SELINUX
|
||||
- ssh_selinux_change_context("sftpd_t");
|
||||
-#endif
|
||||
exit(sftp_server_main(i, argv, s->pw));
|
||||
}
|
||||
|
||||
diff -up openssh-7.4p1/sshd.c.privsep-selinux openssh-7.4p1/sshd.c
|
||||
--- openssh-7.4p1/sshd.c.privsep-selinux 2016-12-23 18:58:52.973122201 +0100
|
||||
+++ openssh-7.4p1/sshd.c 2016-12-23 18:59:13.808124269 +0100
|
||||
@@ -540,6 +540,10 @@ privsep_preauth_child(void)
|
||||
/* Demote the private keys to public keys. */
|
||||
demote_sensitive_data();
|
||||
|
||||
+#ifdef WITH_SELINUX
|
||||
+ ssh_selinux_change_context("sshd_net_t");
|
||||
+#endif
|
||||
+
|
||||
/* Demote the child */
|
||||
if (privsep_chroot) {
|
||||
/* Change our root directory */
|
||||
@@ -633,6 +637,9 @@ privsep_postauth(Authctxt *authctxt)
|
||||
{
|
||||
#ifdef DISABLE_FD_PASSING
|
||||
if (1) {
|
||||
+#elif defined(WITH_SELINUX)
|
||||
+ if (0) {
|
||||
+ /* even root user can be confined by SELinux */
|
||||
#else
|
||||
if (authctxt->pw->pw_uid == 0) {
|
||||
#endif
|
@ -1,185 +0,0 @@
|
||||
diff -up openssh-7.4p1/channels.c.coverity openssh-7.4p1/channels.c
|
||||
--- openssh-7.4p1/channels.c.coverity 2016-12-23 16:40:26.881788686 +0100
|
||||
+++ openssh-7.4p1/channels.c 2016-12-23 16:42:36.244818763 +0100
|
||||
@@ -288,11 +288,11 @@ channel_register_fds(Channel *c, int rfd
|
||||
|
||||
/* enable nonblocking mode */
|
||||
if (nonblock) {
|
||||
- if (rfd != -1)
|
||||
+ if (rfd >= 0)
|
||||
set_nonblock(rfd);
|
||||
- if (wfd != -1)
|
||||
+ if (wfd >= 0)
|
||||
set_nonblock(wfd);
|
||||
- if (efd != -1)
|
||||
+ if (efd >= 0)
|
||||
set_nonblock(efd);
|
||||
}
|
||||
}
|
||||
diff -up openssh-7.4p1/monitor.c.coverity openssh-7.4p1/monitor.c
|
||||
--- openssh-7.4p1/monitor.c.coverity 2016-12-23 16:40:26.888788688 +0100
|
||||
+++ openssh-7.4p1/monitor.c 2016-12-23 16:40:26.900788691 +0100
|
||||
@@ -411,7 +411,7 @@ monitor_child_preauth(Authctxt *_authctx
|
||||
mm_get_keystate(ssh, pmonitor);
|
||||
|
||||
/* Drain any buffered messages from the child */
|
||||
- while (pmonitor->m_log_recvfd != -1 && monitor_read_log(pmonitor) == 0)
|
||||
+ while (pmonitor->m_log_recvfd >= 0 && monitor_read_log(pmonitor) == 0)
|
||||
;
|
||||
|
||||
if (pmonitor->m_recvfd >= 0)
|
||||
diff -up openssh-7.4p1/monitor_wrap.c.coverity openssh-7.4p1/monitor_wrap.c
|
||||
--- openssh-7.4p1/monitor_wrap.c.coverity 2016-12-23 16:40:26.892788689 +0100
|
||||
+++ openssh-7.4p1/monitor_wrap.c 2016-12-23 16:40:26.900788691 +0100
|
||||
@@ -525,10 +525,10 @@ mm_pty_allocate(int *ptyfd, int *ttyfd,
|
||||
if ((tmp1 = dup(pmonitor->m_recvfd)) == -1 ||
|
||||
(tmp2 = dup(pmonitor->m_recvfd)) == -1) {
|
||||
error("%s: cannot allocate fds for pty", __func__);
|
||||
- if (tmp1 > 0)
|
||||
+ if (tmp1 >= 0)
|
||||
close(tmp1);
|
||||
- if (tmp2 > 0)
|
||||
- close(tmp2);
|
||||
+ /*DEAD CODE if (tmp2 >= 0)
|
||||
+ close(tmp2);*/
|
||||
return 0;
|
||||
}
|
||||
close(tmp1);
|
||||
diff -up openssh-7.4p1/openbsd-compat/bindresvport.c.coverity openssh-7.4p1/openbsd-compat/bindresvport.c
|
||||
--- openssh-7.4p1/openbsd-compat/bindresvport.c.coverity 2016-12-19 05:59:41.000000000 +0100
|
||||
+++ openssh-7.4p1/openbsd-compat/bindresvport.c 2016-12-23 16:40:26.901788691 +0100
|
||||
@@ -58,7 +58,7 @@ bindresvport_sa(int sd, struct sockaddr
|
||||
struct sockaddr_in6 *in6;
|
||||
u_int16_t *portp;
|
||||
u_int16_t port;
|
||||
- socklen_t salen;
|
||||
+ socklen_t salen = sizeof(struct sockaddr_storage);
|
||||
int i;
|
||||
|
||||
if (sa == NULL) {
|
||||
diff -up openssh-7.4p1/scp.c.coverity openssh-7.4p1/scp.c
|
||||
--- openssh-7.4p1/scp.c.coverity 2016-12-23 16:40:26.856788681 +0100
|
||||
+++ openssh-7.4p1/scp.c 2016-12-23 16:40:26.901788691 +0100
|
||||
@@ -157,7 +157,7 @@ killchild(int signo)
|
||||
{
|
||||
if (do_cmd_pid > 1) {
|
||||
kill(do_cmd_pid, signo ? signo : SIGTERM);
|
||||
- waitpid(do_cmd_pid, NULL, 0);
|
||||
+ (void) waitpid(do_cmd_pid, NULL, 0);
|
||||
}
|
||||
|
||||
if (signo)
|
||||
diff -up openssh-7.4p1/servconf.c.coverity openssh-7.4p1/servconf.c
|
||||
--- openssh-7.4p1/servconf.c.coverity 2016-12-23 16:40:26.896788690 +0100
|
||||
+++ openssh-7.4p1/servconf.c 2016-12-23 16:40:26.901788691 +0100
|
||||
@@ -1547,7 +1547,7 @@ process_server_config_line(ServerOptions
|
||||
fatal("%s line %d: Missing subsystem name.",
|
||||
filename, linenum);
|
||||
if (!*activep) {
|
||||
- arg = strdelim(&cp);
|
||||
+ /*arg =*/ (void) strdelim(&cp);
|
||||
break;
|
||||
}
|
||||
for (i = 0; i < options->num_subsystems; i++)
|
||||
@@ -1638,8 +1638,9 @@ process_server_config_line(ServerOptions
|
||||
if (*activep && *charptr == NULL) {
|
||||
*charptr = tilde_expand_filename(arg, getuid());
|
||||
/* increase optional counter */
|
||||
- if (intptr != NULL)
|
||||
- *intptr = *intptr + 1;
|
||||
+ /* DEAD CODE intptr is still NULL ;)
|
||||
+ if (intptr != NULL)
|
||||
+ *intptr = *intptr + 1; */
|
||||
}
|
||||
break;
|
||||
|
||||
diff -up openssh-7.4p1/serverloop.c.coverity openssh-7.4p1/serverloop.c
|
||||
--- openssh-7.4p1/serverloop.c.coverity 2016-12-19 05:59:41.000000000 +0100
|
||||
+++ openssh-7.4p1/serverloop.c 2016-12-23 16:40:26.902788691 +0100
|
||||
@@ -125,13 +125,13 @@ notify_setup(void)
|
||||
static void
|
||||
notify_parent(void)
|
||||
{
|
||||
- if (notify_pipe[1] != -1)
|
||||
+ if (notify_pipe[1] >= 0)
|
||||
(void)write(notify_pipe[1], "", 1);
|
||||
}
|
||||
static void
|
||||
notify_prepare(fd_set *readset)
|
||||
{
|
||||
- if (notify_pipe[0] != -1)
|
||||
+ if (notify_pipe[0] >= 0)
|
||||
FD_SET(notify_pipe[0], readset);
|
||||
}
|
||||
static void
|
||||
@@ -139,8 +139,8 @@ notify_done(fd_set *readset)
|
||||
{
|
||||
char c;
|
||||
|
||||
- if (notify_pipe[0] != -1 && FD_ISSET(notify_pipe[0], readset))
|
||||
- while (read(notify_pipe[0], &c, 1) != -1)
|
||||
+ if (notify_pipe[0] >= 0 && FD_ISSET(notify_pipe[0], readset))
|
||||
+ while (read(notify_pipe[0], &c, 1) >= 0)
|
||||
debug2("%s: reading", __func__);
|
||||
}
|
||||
|
||||
@@ -518,7 +518,7 @@ server_request_tun(void)
|
||||
debug("%s: invalid tun", __func__);
|
||||
goto done;
|
||||
}
|
||||
- if (auth_opts->force_tun_device != -1) {
|
||||
+ if (auth_opts->force_tun_device >= 0) {
|
||||
if (tun != SSH_TUNID_ANY &&
|
||||
auth_opts->force_tun_device != (int)tun)
|
||||
goto done;
|
||||
diff -up openssh-7.4p1/sftp.c.coverity openssh-7.4p1/sftp.c
|
||||
--- openssh-7.4p1/sftp.c.coverity 2016-12-19 05:59:41.000000000 +0100
|
||||
+++ openssh-7.4p1/sftp.c 2016-12-23 16:40:26.903788691 +0100
|
||||
@@ -224,7 +224,7 @@ killchild(int signo)
|
||||
pid = sshpid;
|
||||
if (pid > 1) {
|
||||
kill(pid, SIGTERM);
|
||||
- waitpid(pid, NULL, 0);
|
||||
+ (void) waitpid(pid, NULL, 0);
|
||||
}
|
||||
|
||||
_exit(1);
|
||||
diff -up openssh-7.4p1/ssh-agent.c.coverity openssh-7.4p1/ssh-agent.c
|
||||
--- openssh-7.4p1/ssh-agent.c.coverity 2016-12-19 05:59:41.000000000 +0100
|
||||
+++ openssh-7.4p1/ssh-agent.c 2016-12-23 16:40:26.903788691 +0100
|
||||
@@ -1220,8 +1220,8 @@ main(int ac, char **av)
|
||||
sanitise_stdfd();
|
||||
|
||||
/* drop */
|
||||
- setegid(getgid());
|
||||
- setgid(getgid());
|
||||
+ (void) setegid(getgid());
|
||||
+ (void) setgid(getgid());
|
||||
|
||||
platform_disable_tracing(0); /* strict=no */
|
||||
|
||||
diff -up openssh-7.4p1/sshd.c.coverity openssh-7.4p1/sshd.c
|
||||
--- openssh-7.4p1/sshd.c.coverity 2016-12-23 16:40:26.897788690 +0100
|
||||
+++ openssh-7.4p1/sshd.c 2016-12-23 16:40:26.904788692 +0100
|
||||
@@ -691,8 +691,10 @@ privsep_preauth(Authctxt *authctxt)
|
||||
|
||||
privsep_preauth_child(ssh);
|
||||
setproctitle("%s", "[net]");
|
||||
- if (box != NULL)
|
||||
+ if (box != NULL) {
|
||||
ssh_sandbox_child(box);
|
||||
+ free(box);
|
||||
+ }
|
||||
|
||||
return 0;
|
||||
}
|
||||
@@ -1386,6 +1388,9 @@ server_accept_loop(int *sock_in, int *so
|
||||
explicit_bzero(rnd, sizeof(rnd));
|
||||
}
|
||||
}
|
||||
+
|
||||
+ if (fdset != NULL)
|
||||
+ free(fdset);
|
||||
}
|
||||
|
||||
/*
|
@ -1,618 +0,0 @@
|
||||
diff -up openssh-6.8p1/Makefile.in.kdf-cavs openssh-6.8p1/Makefile.in
|
||||
--- openssh-6.8p1/Makefile.in.kdf-cavs 2015-03-18 11:23:46.346049359 +0100
|
||||
+++ openssh-6.8p1/Makefile.in 2015-03-18 11:24:20.395968445 +0100
|
||||
@@ -29,6 +29,7 @@ SSH_LDAP_HELPER=$(libexecdir)/ssh-ldap-h
|
||||
SSH_KEYSIGN=$(libexecdir)/ssh-keysign
|
||||
SSH_KEYCAT=$(libexecdir)/ssh-keycat
|
||||
CTR_CAVSTEST=$(libexecdir)/ctr-cavstest
|
||||
+SSH_CAVS=$(libexecdir)/ssh-cavs
|
||||
SSH_PKCS11_HELPER=$(libexecdir)/ssh-pkcs11-helper
|
||||
SSH_SK_HELPER=$(libexecdir)/ssh-sk-helper
|
||||
PRIVSEP_PATH=@PRIVSEP_PATH@
|
||||
@@ -67,7 +68,7 @@ EXEEXT=@EXEEXT@
|
||||
|
||||
.SUFFIXES: .lo
|
||||
|
||||
-TARGETS=ssh$(EXEEXT) sshd$(EXEEXT) ssh-add$(EXEEXT) ssh-keygen$(EXEEXT) ssh-keyscan${EXEEXT} ssh-keysign${EXEEXT} ssh-pkcs11-helper$(EXEEXT) ssh-agent$(EXEEXT) scp$(EXEEXT) sftp-server$(EXEEXT) sftp$(EXEEXT) ssh-sk-helper$(EXEEXT) ssh-keycat$(EXEEXT) ctr-cavstest$(EXEEXT)
|
||||
+TARGETS=ssh$(EXEEXT) sshd$(EXEEXT) ssh-add$(EXEEXT) ssh-keygen$(EXEEXT) ssh-keyscan${EXEEXT} ssh-keysign${EXEEXT} ssh-pkcs11-helper$(EXEEXT) ssh-agent$(EXEEXT) scp$(EXEEXT) sftp-server$(EXEEXT) sftp$(EXEEXT) ssh-sk-helper$(EXEEXT) ssh-keycat$(EXEEXT) ctr-cavstest$(EXEEXT) ssh-cavs$(EXEEXT)
|
||||
|
||||
XMSS_OBJS=\
|
||||
ssh-xmss.o \
|
||||
@@ -198,6 +199,9 @@ ssh-keycat$(EXEEXT): $(LIBCOMPAT) $(SSHD
|
||||
ctr-cavstest$(EXEEXT): $(LIBCOMPAT) libssh.a ctr-cavstest.o
|
||||
$(LD) -o $@ ctr-cavstest.o $(LDFLAGS) -lssh -lopenbsd-compat -lssh $(LIBS)
|
||||
|
||||
+ssh-cavs$(EXEEXT): $(LIBCOMPAT) libssh.a ssh-cavs.o $(SKOBJS)
|
||||
+ $(LD) -o $@ ssh-cavs.o $(SKOBJS) $(LDFLAGS) -lssh -lopenbsd-compat $(LIBS)
|
||||
+
|
||||
ssh-keyscan$(EXEEXT): $(LIBCOMPAT) libssh.a $(SSHKEYSCAN_OBJS)
|
||||
$(LD) -o $@ $(SSHKEYSCAN_OBJS) $(LDFLAGS) -lssh -lopenbsd-compat -lssh $(LIBS)
|
||||
|
||||
@@ -331,6 +335,8 @@ install-files:
|
||||
$(INSTALL) -m 0755 $(STRIP_OPT) ssh-sk-helper$(EXEEXT) $(DESTDIR)$(SSH_SK_HELPER)$(EXEEXT)
|
||||
$(INSTALL) -m 0755 $(STRIP_OPT) ssh-keycat$(EXEEXT) $(DESTDIR)$(libexecdir)/ssh-keycat$(EXEEXT)
|
||||
$(INSTALL) -m 0755 $(STRIP_OPT) ctr-cavstest$(EXEEXT) $(DESTDIR)$(libexecdir)/ctr-cavstest$(EXEEXT)
|
||||
+ $(INSTALL) -m 0755 $(STRIP_OPT) ssh-cavs$(EXEEXT) $(DESTDIR)$(libexecdir)/ssh-cavs$(EXEEXT)
|
||||
+ $(INSTALL) -m 0755 $(STRIP_OPT) ssh-cavs_driver.pl $(DESTDIR)$(libexecdir)/ssh-cavs_driver.pl
|
||||
$(INSTALL) -m 0755 $(STRIP_OPT) sftp$(EXEEXT) $(DESTDIR)$(bindir)/sftp$(EXEEXT)
|
||||
$(INSTALL) -m 0755 $(STRIP_OPT) sftp-server$(EXEEXT) $(DESTDIR)$(SFTP_SERVER)$(EXEEXT)
|
||||
$(INSTALL) -m 644 ssh.1.out $(DESTDIR)$(mandir)/$(mansubdir)1/ssh.1
|
||||
diff -up openssh-6.8p1/ssh-cavs.c.kdf-cavs openssh-6.8p1/ssh-cavs.c
|
||||
--- openssh-6.8p1/ssh-cavs.c.kdf-cavs 2015-03-18 11:23:46.348049354 +0100
|
||||
+++ openssh-6.8p1/ssh-cavs.c 2015-03-18 11:23:46.348049354 +0100
|
||||
@@ -0,0 +1,387 @@
|
||||
+/*
|
||||
+ * Copyright (C) 2015, Stephan Mueller <smueller@chronox.de>
|
||||
+ *
|
||||
+ * Redistribution and use in source and binary forms, with or without
|
||||
+ * modification, are permitted provided that the following conditions
|
||||
+ * are met:
|
||||
+ * 1. Redistributions of source code must retain the above copyright
|
||||
+ * notice, and the entire permission notice in its entirety,
|
||||
+ * including the disclaimer of warranties.
|
||||
+ * 2. Redistributions in binary form must reproduce the above copyright
|
||||
+ * notice, this list of conditions and the following disclaimer in the
|
||||
+ * documentation and/or other materials provided with the distribution.
|
||||
+ * 3. The name of the author may not be used to endorse or promote
|
||||
+ * products derived from this software without specific prior
|
||||
+ * written permission.
|
||||
+ *
|
||||
+ * ALTERNATIVELY, this product may be distributed under the terms of
|
||||
+ * the GNU General Public License, in which case the provisions of the GPL2
|
||||
+ * are required INSTEAD OF the above restrictions. (This clause is
|
||||
+ * necessary due to a potential bad interaction between the GPL and
|
||||
+ * the restrictions contained in a BSD-style copyright.)
|
||||
+ *
|
||||
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
||||
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
|
||||
+ * WHICH ARE HEREBY DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
|
||||
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
|
||||
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
|
||||
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
|
||||
+ * USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
|
||||
+ * DAMAGE.
|
||||
+ */
|
||||
+
|
||||
+#include "includes.h"
|
||||
+
|
||||
+#include <stdio.h>
|
||||
+#include <stdlib.h>
|
||||
+#include <errno.h>
|
||||
+#include <sys/types.h>
|
||||
+#include <string.h>
|
||||
+
|
||||
+#include <openssl/bn.h>
|
||||
+
|
||||
+#include "xmalloc.h"
|
||||
+#include "sshbuf.h"
|
||||
+#include "sshkey.h"
|
||||
+#include "cipher.h"
|
||||
+#include "kex.h"
|
||||
+#include "packet.h"
|
||||
+#include "digest.h"
|
||||
+
|
||||
+static int bin_char(unsigned char hex)
|
||||
+{
|
||||
+ if (48 <= hex && 57 >= hex)
|
||||
+ return (hex - 48);
|
||||
+ if (65 <= hex && 70 >= hex)
|
||||
+ return (hex - 55);
|
||||
+ if (97 <= hex && 102 >= hex)
|
||||
+ return (hex - 87);
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+/*
|
||||
+ * Convert hex representation into binary string
|
||||
+ * @hex input buffer with hex representation
|
||||
+ * @hexlen length of hex
|
||||
+ * @bin output buffer with binary data
|
||||
+ * @binlen length of already allocated bin buffer (should be at least
|
||||
+ * half of hexlen -- if not, only a fraction of hexlen is converted)
|
||||
+ */
|
||||
+static void hex2bin(const char *hex, size_t hexlen,
|
||||
+ unsigned char *bin, size_t binlen)
|
||||
+{
|
||||
+ size_t i = 0;
|
||||
+ size_t chars = (binlen > (hexlen / 2)) ? (hexlen / 2) : binlen;
|
||||
+
|
||||
+ for (i = 0; i < chars; i++) {
|
||||
+ bin[i] = bin_char(hex[(i*2)]) << 4;
|
||||
+ bin[i] |= bin_char(hex[((i*2)+1)]);
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
+/*
|
||||
+ * Allocate sufficient space for binary representation of hex
|
||||
+ * and convert hex into bin
|
||||
+ *
|
||||
+ * Caller must free bin
|
||||
+ * @hex input buffer with hex representation
|
||||
+ * @hexlen length of hex
|
||||
+ * @bin return value holding the pointer to the newly allocated buffer
|
||||
+ * @binlen return value holding the allocated size of bin
|
||||
+ *
|
||||
+ * return: 0 on success, !0 otherwise
|
||||
+ */
|
||||
+static int hex2bin_alloc(const char *hex, size_t hexlen,
|
||||
+ unsigned char **bin, size_t *binlen)
|
||||
+{
|
||||
+ unsigned char *out = NULL;
|
||||
+ size_t outlen = 0;
|
||||
+
|
||||
+ if (!hexlen)
|
||||
+ return -EINVAL;
|
||||
+
|
||||
+ outlen = (hexlen + 1) / 2;
|
||||
+
|
||||
+ out = calloc(1, outlen);
|
||||
+ if (!out)
|
||||
+ return -errno;
|
||||
+
|
||||
+ hex2bin(hex, hexlen, out, outlen);
|
||||
+ *bin = out;
|
||||
+ *binlen = outlen;
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static char hex_char_map_l[] = { '0', '1', '2', '3', '4', '5', '6', '7',
|
||||
+ '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
|
||||
+static char hex_char_map_u[] = { '0', '1', '2', '3', '4', '5', '6', '7',
|
||||
+ '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
|
||||
+static char hex_char(unsigned int bin, int u)
|
||||
+{
|
||||
+ if (bin < sizeof(hex_char_map_l))
|
||||
+ return (u) ? hex_char_map_u[bin] : hex_char_map_l[bin];
|
||||
+ return 'X';
|
||||
+}
|
||||
+
|
||||
+/*
|
||||
+ * Convert binary string into hex representation
|
||||
+ * @bin input buffer with binary data
|
||||
+ * @binlen length of bin
|
||||
+ * @hex output buffer to store hex data
|
||||
+ * @hexlen length of already allocated hex buffer (should be at least
|
||||
+ * twice binlen -- if not, only a fraction of binlen is converted)
|
||||
+ * @u case of hex characters (0=>lower case, 1=>upper case)
|
||||
+ */
|
||||
+static void bin2hex(const unsigned char *bin, size_t binlen,
|
||||
+ char *hex, size_t hexlen, int u)
|
||||
+{
|
||||
+ size_t i = 0;
|
||||
+ size_t chars = (binlen > (hexlen / 2)) ? (hexlen / 2) : binlen;
|
||||
+
|
||||
+ for (i = 0; i < chars; i++) {
|
||||
+ hex[(i*2)] = hex_char((bin[i] >> 4), u);
|
||||
+ hex[((i*2)+1)] = hex_char((bin[i] & 0x0f), u);
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
+struct kdf_cavs {
|
||||
+ unsigned char *K;
|
||||
+ size_t Klen;
|
||||
+ unsigned char *H;
|
||||
+ size_t Hlen;
|
||||
+ unsigned char *session_id;
|
||||
+ size_t session_id_len;
|
||||
+
|
||||
+ unsigned int iv_len;
|
||||
+ unsigned int ek_len;
|
||||
+ unsigned int ik_len;
|
||||
+};
|
||||
+
|
||||
+static int sshkdf_cavs(struct kdf_cavs *test)
|
||||
+{
|
||||
+ int ret = 0;
|
||||
+ struct kex kex;
|
||||
+ struct sshbuf *Kb = NULL;
|
||||
+ BIGNUM *Kbn = NULL;
|
||||
+ int mode = 0;
|
||||
+ struct newkeys *ctoskeys;
|
||||
+ struct newkeys *stockeys;
|
||||
+ struct ssh *ssh = NULL;
|
||||
+
|
||||
+#define HEXOUTLEN 500
|
||||
+ char hex[HEXOUTLEN];
|
||||
+
|
||||
+ memset(&kex, 0, sizeof(struct kex));
|
||||
+
|
||||
+ Kbn = BN_new();
|
||||
+ BN_bin2bn(test->K, test->Klen, Kbn);
|
||||
+ if (!Kbn) {
|
||||
+ printf("cannot convert K into bignum\n");
|
||||
+ ret = 1;
|
||||
+ goto out;
|
||||
+ }
|
||||
+ Kb = sshbuf_new();
|
||||
+ if (!Kb) {
|
||||
+ printf("cannot convert K into sshbuf\n");
|
||||
+ ret = 1;
|
||||
+ goto out;
|
||||
+ }
|
||||
+ sshbuf_put_bignum2(Kb, Kbn);
|
||||
+
|
||||
+ kex.session_id = test->session_id;
|
||||
+ kex.session_id_len = test->session_id_len;
|
||||
+
|
||||
+ /* setup kex */
|
||||
+
|
||||
+ /* select the right hash based on struct ssh_digest digests */
|
||||
+ switch (test->ik_len) {
|
||||
+ case 20:
|
||||
+ kex.hash_alg = SSH_DIGEST_SHA1;
|
||||
+ break;
|
||||
+ case 32:
|
||||
+ kex.hash_alg = SSH_DIGEST_SHA256;
|
||||
+ break;
|
||||
+ case 48:
|
||||
+ kex.hash_alg = SSH_DIGEST_SHA384;
|
||||
+ break;
|
||||
+ case 64:
|
||||
+ kex.hash_alg = SSH_DIGEST_SHA512;
|
||||
+ break;
|
||||
+ default:
|
||||
+ printf("Wrong hash type %u\n", test->ik_len);
|
||||
+ ret = 1;
|
||||
+ goto out;
|
||||
+ }
|
||||
+
|
||||
+ /* implement choose_enc */
|
||||
+ for (mode = 0; mode < 2; mode++) {
|
||||
+ kex.newkeys[mode] = calloc(1, sizeof(struct newkeys));
|
||||
+ if (!kex.newkeys[mode]) {
|
||||
+ printf("allocation of newkeys failed\n");
|
||||
+ ret = 1;
|
||||
+ goto out;
|
||||
+ }
|
||||
+ kex.newkeys[mode]->enc.iv_len = test->iv_len;
|
||||
+ kex.newkeys[mode]->enc.key_len = test->ek_len;
|
||||
+ kex.newkeys[mode]->enc.block_size = (test->iv_len == 64) ? 8 : 16;
|
||||
+ kex.newkeys[mode]->mac.key_len = test->ik_len;
|
||||
+ }
|
||||
+
|
||||
+ /* implement kex_choose_conf */
|
||||
+ kex.we_need = kex.newkeys[0]->enc.key_len;
|
||||
+ if (kex.we_need < kex.newkeys[0]->enc.block_size)
|
||||
+ kex.we_need = kex.newkeys[0]->enc.block_size;
|
||||
+ if (kex.we_need < kex.newkeys[0]->enc.iv_len)
|
||||
+ kex.we_need = kex.newkeys[0]->enc.iv_len;
|
||||
+ if (kex.we_need < kex.newkeys[0]->mac.key_len)
|
||||
+ kex.we_need = kex.newkeys[0]->mac.key_len;
|
||||
+
|
||||
+ /* MODE_OUT (1) -> server to client
|
||||
+ * MODE_IN (0) -> client to server */
|
||||
+ kex.server = 1;
|
||||
+
|
||||
+ /* do it */
|
||||
+ if ((ssh = ssh_packet_set_connection(NULL, -1, -1)) == NULL){
|
||||
+ printf("Allocation error\n");
|
||||
+ goto out;
|
||||
+ }
|
||||
+ ssh->kex = &kex;
|
||||
+ kex_derive_keys(ssh, test->H, test->Hlen, Kb);
|
||||
+
|
||||
+ ctoskeys = kex.newkeys[0];
|
||||
+ stockeys = kex.newkeys[1];
|
||||
+
|
||||
+ /* get data */
|
||||
+ memset(hex, 0, HEXOUTLEN);
|
||||
+ bin2hex(ctoskeys->enc.iv, (size_t)ctoskeys->enc.iv_len,
|
||||
+ hex, HEXOUTLEN, 0);
|
||||
+ printf("Initial IV (client to server) = %s\n", hex);
|
||||
+ memset(hex, 0, HEXOUTLEN);
|
||||
+ bin2hex(stockeys->enc.iv, (size_t)stockeys->enc.iv_len,
|
||||
+ hex, HEXOUTLEN, 0);
|
||||
+ printf("Initial IV (server to client) = %s\n", hex);
|
||||
+
|
||||
+ memset(hex, 0, HEXOUTLEN);
|
||||
+ bin2hex(ctoskeys->enc.key, (size_t)ctoskeys->enc.key_len,
|
||||
+ hex, HEXOUTLEN, 0);
|
||||
+ printf("Encryption key (client to server) = %s\n", hex);
|
||||
+ memset(hex, 0, HEXOUTLEN);
|
||||
+ bin2hex(stockeys->enc.key, (size_t)stockeys->enc.key_len,
|
||||
+ hex, HEXOUTLEN, 0);
|
||||
+ printf("Encryption key (server to client) = %s\n", hex);
|
||||
+
|
||||
+ memset(hex, 0, HEXOUTLEN);
|
||||
+ bin2hex(ctoskeys->mac.key, (size_t)ctoskeys->mac.key_len,
|
||||
+ hex, HEXOUTLEN, 0);
|
||||
+ printf("Integrity key (client to server) = %s\n", hex);
|
||||
+ memset(hex, 0, HEXOUTLEN);
|
||||
+ bin2hex(stockeys->mac.key, (size_t)stockeys->mac.key_len,
|
||||
+ hex, HEXOUTLEN, 0);
|
||||
+ printf("Integrity key (server to client) = %s\n", hex);
|
||||
+
|
||||
+out:
|
||||
+ if (Kbn)
|
||||
+ BN_free(Kbn);
|
||||
+ if (Kb)
|
||||
+ sshbuf_free(Kb);
|
||||
+ if (ssh)
|
||||
+ ssh_packet_close(ssh);
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
+static void usage(void)
|
||||
+{
|
||||
+ fprintf(stderr, "\nOpenSSH KDF CAVS Test\n\n");
|
||||
+ fprintf(stderr, "Usage:\n");
|
||||
+ fprintf(stderr, "\t-K\tShared secret string\n");
|
||||
+ fprintf(stderr, "\t-H\tHash string\n");
|
||||
+ fprintf(stderr, "\t-s\tSession ID string\n");
|
||||
+ fprintf(stderr, "\t-i\tIV length to be generated\n");
|
||||
+ fprintf(stderr, "\t-e\tEncryption key length to be generated\n");
|
||||
+ fprintf(stderr, "\t-m\tMAC key length to be generated\n");
|
||||
+}
|
||||
+
|
||||
+/*
|
||||
+ * Test command example:
|
||||
+ * ./ssh-cavs -K 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 -H d3ab91a850febb417a25d892ec48ed5952c7a5de -s d3ab91a850febb417a25d892ec48ed5952c7a5de -i 8 -e 24 -m 20
|
||||
+ *
|
||||
+ * Initial IV (client to server) = 4bb320d1679dfd3a
|
||||
+ * Initial IV (server to client) = 43dea6fdf263a308
|
||||
+ * Encryption key (client to server) = 13048cc600b9d3cf9095aa6cf8e2ff9cf1c54ca0520c89ed
|
||||
+ * Encryption key (server to client) = 1e483c5134e901aa11fc4e0a524e7ec7b75556148a222bb0
|
||||
+ * Integrity key (client to server) = ecef63a092b0dcc585bdc757e01b2740af57d640
|
||||
+ * Integrity key (server to client) = 7424b05f3c44a72b4ebd281fb71f9cbe7b64d479
|
||||
+ */
|
||||
+int main(int argc, char *argv[])
|
||||
+{
|
||||
+ struct kdf_cavs test;
|
||||
+ int ret = 1;
|
||||
+ int opt = 0;
|
||||
+
|
||||
+ memset(&test, 0, sizeof(struct kdf_cavs));
|
||||
+ while((opt = getopt(argc, argv, "K:H:s:i:e:m:")) != -1)
|
||||
+ {
|
||||
+ size_t len = 0;
|
||||
+ switch(opt)
|
||||
+ {
|
||||
+ /*
|
||||
+ * CAVS K is MPINT
|
||||
+ * we want a hex (i.e. the caller must ensure the
|
||||
+ * following transformations already happened):
|
||||
+ * 1. cut off first four bytes
|
||||
+ * 2. if most significant bit of value is
|
||||
+ * 1, prepend 0 byte
|
||||
+ */
|
||||
+ case 'K':
|
||||
+ len = strlen(optarg);
|
||||
+ ret = hex2bin_alloc(optarg, len,
|
||||
+ &test.K, &test.Klen);
|
||||
+ if (ret)
|
||||
+ goto out;
|
||||
+ break;
|
||||
+ case 'H':
|
||||
+ len = strlen(optarg);
|
||||
+ ret = hex2bin_alloc(optarg, len,
|
||||
+ &test.H, &test.Hlen);
|
||||
+ if (ret)
|
||||
+ goto out;
|
||||
+ break;
|
||||
+ case 's':
|
||||
+ len = strlen(optarg);
|
||||
+ ret = hex2bin_alloc(optarg, len,
|
||||
+ &test.session_id,
|
||||
+ &test.session_id_len);
|
||||
+ if (ret)
|
||||
+ goto out;
|
||||
+ break;
|
||||
+ case 'i':
|
||||
+ test.iv_len = strtoul(optarg, NULL, 10);
|
||||
+ break;
|
||||
+ case 'e':
|
||||
+ test.ek_len = strtoul(optarg, NULL, 10);
|
||||
+ break;
|
||||
+ case 'm':
|
||||
+ test.ik_len = strtoul(optarg, NULL, 10);
|
||||
+ break;
|
||||
+ default:
|
||||
+ usage();
|
||||
+ goto out;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ ret = sshkdf_cavs(&test);
|
||||
+
|
||||
+out:
|
||||
+ if (test.session_id)
|
||||
+ free(test.session_id);
|
||||
+ if (test.K)
|
||||
+ free(test.K);
|
||||
+ if (test.H)
|
||||
+ free(test.H);
|
||||
+ return ret;
|
||||
+
|
||||
+}
|
||||
diff -up openssh-6.8p1/ssh-cavs_driver.pl.kdf-cavs openssh-6.8p1/ssh-cavs_driver.pl
|
||||
--- openssh-6.8p1/ssh-cavs_driver.pl.kdf-cavs 2015-03-18 11:23:46.348049354 +0100
|
||||
+++ openssh-6.8p1/ssh-cavs_driver.pl 2015-03-18 11:23:46.348049354 +0100
|
||||
@@ -0,0 +1,184 @@
|
||||
+#!/usr/bin/env perl
|
||||
+#
|
||||
+# CAVS test driver for OpenSSH
|
||||
+#
|
||||
+# Copyright (C) 2015, Stephan Mueller <smueller@chronox.de>
|
||||
+#
|
||||
+# Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
+# of this software and associated documentation files (the "Software"), to deal
|
||||
+# in the Software without restriction, including without limitation the rights
|
||||
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
+# copies of the Software, and to permit persons to whom the Software is
|
||||
+# furnished to do so, subject to the following conditions:
|
||||
+#
|
||||
+# The above copyright notice and this permission notice shall be included in
|
||||
+# all copies or substantial portions of the Software.
|
||||
+#
|
||||
+# NO WARRANTY
|
||||
+#
|
||||
+# BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
|
||||
+# FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
|
||||
+# OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
|
||||
+# PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
|
||||
+# OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
+# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
|
||||
+# TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
|
||||
+# PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
|
||||
+# REPAIR OR CORRECTION.
|
||||
+#
|
||||
+# IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
+# WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
|
||||
+# REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
|
||||
+# INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
|
||||
+# OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
|
||||
+# TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
|
||||
+# YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
|
||||
+# PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
|
||||
+# POSSIBILITY OF SUCH DAMAGES.
|
||||
+#
|
||||
+use strict;
|
||||
+use warnings;
|
||||
+use IPC::Open2;
|
||||
+
|
||||
+# Executing a program by feeding STDIN and retrieving
|
||||
+# STDOUT
|
||||
+# $1: data string to be piped to the app on STDIN
|
||||
+# rest: program and args
|
||||
+# returns: STDOUT of program as string
|
||||
+sub pipe_through_program($@) {
|
||||
+ my $in = shift;
|
||||
+ my @args = @_;
|
||||
+
|
||||
+ my ($CO, $CI);
|
||||
+ my $pid = open2($CO, $CI, @args);
|
||||
+
|
||||
+ my $out = "";
|
||||
+ my $len = length($in);
|
||||
+ my $first = 1;
|
||||
+ while (1) {
|
||||
+ my $rin = "";
|
||||
+ my $win = "";
|
||||
+ # Output of prog is FD that we read
|
||||
+ vec($rin,fileno($CO),1) = 1;
|
||||
+ # Input of prog is FD that we write
|
||||
+ # check for $first is needed because we can have NULL input
|
||||
+ # that is to be written to the app
|
||||
+ if ( $len > 0 || $first) {
|
||||
+ (vec($win,fileno($CI),1) = 1);
|
||||
+ $first=0;
|
||||
+ }
|
||||
+ # Let us wait for 100ms
|
||||
+ my $nfound = select(my $rout=$rin, my $wout=$win, undef, 0.1);
|
||||
+ if ( $wout ) {
|
||||
+ my $written = syswrite($CI, $in, $len);
|
||||
+ die "broken pipe" if !defined $written;
|
||||
+ $len -= $written;
|
||||
+ substr($in, 0, $written) = "";
|
||||
+ if ($len <= 0) {
|
||||
+ close $CI or die "broken pipe: $!";
|
||||
+ }
|
||||
+ }
|
||||
+ if ( $rout ) {
|
||||
+ my $tmp_out = "";
|
||||
+ my $bytes_read = sysread($CO, $tmp_out, 4096);
|
||||
+ $out .= $tmp_out;
|
||||
+ last if ($bytes_read == 0);
|
||||
+ }
|
||||
+ }
|
||||
+ close $CO or die "broken pipe: $!";
|
||||
+ waitpid $pid, 0;
|
||||
+
|
||||
+ return $out;
|
||||
+}
|
||||
+
|
||||
+# Parser of CAVS test vector file
|
||||
+# $1: Test vector file
|
||||
+# $2: Output file for test results
|
||||
+# return: nothing
|
||||
+sub parse($$) {
|
||||
+ my $infile = shift;
|
||||
+ my $outfile = shift;
|
||||
+
|
||||
+ my $out = "";
|
||||
+
|
||||
+ my $K = "";
|
||||
+ my $H = "";
|
||||
+ my $session_id = "";
|
||||
+ my $ivlen = 0;
|
||||
+ my $eklen = "";
|
||||
+ my $iklen = "";
|
||||
+
|
||||
+ open(IN, "<$infile");
|
||||
+ while(<IN>) {
|
||||
+
|
||||
+ my $line = $_;
|
||||
+ chomp($line);
|
||||
+ $line =~ s/\r//;
|
||||
+
|
||||
+ if ($line =~ /\[SHA-1\]/) {
|
||||
+ $iklen = 20;
|
||||
+ } elsif ($line =~ /\[SHA-256\]/) {
|
||||
+ $iklen = 32;
|
||||
+ } elsif ($line =~ /\[SHA-384\]/) {
|
||||
+ $iklen = 48;
|
||||
+ } elsif ($line =~ /\[SHA-512\]/) {
|
||||
+ $iklen = 64;
|
||||
+ } elsif ($line =~ /^\[IV length\s*=\s*(.*)\]/) {
|
||||
+ $ivlen = $1;
|
||||
+ $ivlen = $ivlen / 8;
|
||||
+ } elsif ($line =~ /^\[encryption key length\s*=\s*(.*)\]/) {
|
||||
+ $eklen = $1;
|
||||
+ $eklen = $eklen / 8;
|
||||
+ } elsif ($line =~ /^K\s*=\s*(.*)/) {
|
||||
+ $K = $1;
|
||||
+ $K = substr($K, 8);
|
||||
+ $K = "00" . $K;
|
||||
+ } elsif ($line =~ /^H\s*=\s*(.*)/) {
|
||||
+ $H = $1;
|
||||
+ } elsif ($line =~ /^session_id\s*=\s*(.*)/) {
|
||||
+ $session_id = $1;
|
||||
+ }
|
||||
+ $out .= $line . "\n";
|
||||
+
|
||||
+ if ($K ne "" && $H ne "" && $session_id ne "" &&
|
||||
+ $ivlen ne "" && $eklen ne "" && $iklen > 0) {
|
||||
+ $out .= pipe_through_program("", "./ssh-cavs -H $H -K $K -s $session_id -i $ivlen -e $eklen -m $iklen");
|
||||
+
|
||||
+ $K = "";
|
||||
+ $H = "";
|
||||
+ $session_id = "";
|
||||
+ }
|
||||
+ }
|
||||
+ close IN;
|
||||
+ $out =~ s/\n/\r\n/g; # make it a dos file
|
||||
+ open(OUT, ">$outfile") or die "Cannot create output file $outfile: $?";
|
||||
+ print OUT $out;
|
||||
+ close OUT;
|
||||
+}
|
||||
+
|
||||
+############################################################
|
||||
+#
|
||||
+# let us pretend to be C :-)
|
||||
+sub main() {
|
||||
+
|
||||
+ my $infile=$ARGV[0];
|
||||
+ die "Error: Test vector file $infile not found" if (! -f $infile);
|
||||
+
|
||||
+ my $outfile = $infile;
|
||||
+ # let us add .rsp regardless whether we could strip .req
|
||||
+ $outfile =~ s/\.req$//;
|
||||
+ $outfile .= ".rsp";
|
||||
+ if (-f $outfile) {
|
||||
+ die "Output file $outfile could not be removed: $?"
|
||||
+ unless unlink($outfile);
|
||||
+ }
|
||||
+ print STDERR "Performing tests from source file $infile with results stored in destination file $outfile\n";
|
||||
+
|
||||
+ # Do the job
|
||||
+ parse($infile, $outfile);
|
||||
+}
|
||||
+
|
||||
+###########################################
|
||||
+# Call it
|
||||
+main();
|
||||
+1;
|
@ -1,100 +0,0 @@
|
||||
diff -up openssh-7.2p2/sftp-server.8.sftp-force-mode openssh-7.2p2/sftp-server.8
|
||||
--- openssh-7.2p2/sftp-server.8.sftp-force-mode 2016-03-09 19:04:48.000000000 +0100
|
||||
+++ openssh-7.2p2/sftp-server.8 2016-06-23 16:18:20.463854117 +0200
|
||||
@@ -38,6 +38,7 @@
|
||||
.Op Fl P Ar denied_requests
|
||||
.Op Fl p Ar allowed_requests
|
||||
.Op Fl u Ar umask
|
||||
+.Op Fl m Ar force_file_perms
|
||||
.Ek
|
||||
.Nm
|
||||
.Fl Q Ar protocol_feature
|
||||
@@ -138,6 +139,12 @@ Sets an explicit
|
||||
.Xr umask 2
|
||||
to be applied to newly-created files and directories, instead of the
|
||||
user's default mask.
|
||||
+.It Fl m Ar force_file_perms
|
||||
+Sets explicit file permissions to be applied to newly-created files instead
|
||||
+of the default or client requested mode. Numeric values include:
|
||||
+777, 755, 750, 666, 644, 640, etc. Using both -m and -u switches makes the
|
||||
+umask (-u) effective only for newly created directories and explicit mode (-m)
|
||||
+for newly created files.
|
||||
.El
|
||||
.Pp
|
||||
On some systems,
|
||||
diff -up openssh-7.2p2/sftp-server.c.sftp-force-mode openssh-7.2p2/sftp-server.c
|
||||
--- openssh-7.2p2/sftp-server.c.sftp-force-mode 2016-06-23 16:18:20.446854128 +0200
|
||||
+++ openssh-7.2p2/sftp-server.c 2016-06-23 16:20:37.950766082 +0200
|
||||
@@ -69,6 +69,10 @@ struct sshbuf *oqueue;
|
||||
/* Version of client */
|
||||
static u_int version;
|
||||
|
||||
+/* Force file permissions */
|
||||
+int permforce = 0;
|
||||
+long permforcemode;
|
||||
+
|
||||
/* SSH2_FXP_INIT received */
|
||||
static int init_done;
|
||||
|
||||
@@ -683,6 +687,7 @@ process_open(u_int32_t id)
|
||||
Attrib a;
|
||||
char *name;
|
||||
int r, handle, fd, flags, mode, status = SSH2_FX_FAILURE;
|
||||
+ mode_t old_umask = 0;
|
||||
|
||||
if ((r = sshbuf_get_cstring(iqueue, &name, NULL)) != 0 ||
|
||||
(r = sshbuf_get_u32(iqueue, &pflags)) != 0 || /* portable flags */
|
||||
@@ -692,6 +697,10 @@ process_open(u_int32_t id)
|
||||
debug3("request %u: open flags %d", id, pflags);
|
||||
flags = flags_from_portable(pflags);
|
||||
mode = (a.flags & SSH2_FILEXFER_ATTR_PERMISSIONS) ? a.perm : 0666;
|
||||
+ if (permforce == 1) { /* Force perm if -m is set */
|
||||
+ mode = permforcemode;
|
||||
+ old_umask = umask(0); /* so umask does not interfere */
|
||||
+ }
|
||||
logit("open \"%s\" flags %s mode 0%o",
|
||||
name, string_from_portable(pflags), mode);
|
||||
if (readonly &&
|
||||
@@ -713,6 +722,8 @@ process_open(u_int32_t id)
|
||||
}
|
||||
}
|
||||
}
|
||||
+ if (permforce == 1)
|
||||
+ (void) umask(old_umask); /* restore umask to something sane */
|
||||
if (status != SSH2_FX_OK)
|
||||
send_status(id, status);
|
||||
free(name);
|
||||
@@ -1494,7 +1505,7 @@ sftp_server_usage(void)
|
||||
fprintf(stderr,
|
||||
"usage: %s [-ehR] [-d start_directory] [-f log_facility] "
|
||||
"[-l log_level]\n\t[-P denied_requests] "
|
||||
- "[-p allowed_requests] [-u umask]\n"
|
||||
+ "[-p allowed_requests] [-u umask] [-m force_file_perms]\n"
|
||||
" %s -Q protocol_feature\n",
|
||||
__progname, __progname);
|
||||
exit(1);
|
||||
@@ -1520,7 +1531,7 @@ sftp_server_main(int argc, char **argv,
|
||||
pw = pwcopy(user_pw);
|
||||
|
||||
while (!skipargs && (ch = getopt(argc, argv,
|
||||
- "d:f:l:P:p:Q:u:cehR")) != -1) {
|
||||
+ "d:f:l:P:p:Q:u:m:cehR")) != -1) {
|
||||
switch (ch) {
|
||||
case 'Q':
|
||||
if (strcasecmp(optarg, "requests") != 0) {
|
||||
@@ -1580,6 +1591,15 @@ sftp_server_main(int argc, char **argv,
|
||||
fatal("Invalid umask \"%s\"", optarg);
|
||||
(void)umask((mode_t)mask);
|
||||
break;
|
||||
+ case 'm':
|
||||
+ /* Force permissions on file received via sftp */
|
||||
+ permforce = 1;
|
||||
+ permforcemode = strtol(optarg, &cp, 8);
|
||||
+ if (permforcemode < 0 || permforcemode > 0777 ||
|
||||
+ *cp != '\0' || (permforcemode == 0 &&
|
||||
+ errno != 0))
|
||||
+ fatal("Invalid file mode \"%s\"", optarg);
|
||||
+ break;
|
||||
case 'h':
|
||||
default:
|
||||
sftp_server_usage();
|
@ -1,12 +0,0 @@
|
||||
diff -up openssh/servconf.c.sshdt openssh/servconf.c
|
||||
--- openssh/servconf.c.sshdt 2015-06-24 11:42:29.041078704 +0200
|
||||
+++ openssh/servconf.c 2015-06-24 11:44:39.734745802 +0200
|
||||
@@ -2317,7 +2317,7 @@ dump_config(ServerOptions *o)
|
||||
dump_cfg_string(sXAuthLocation, o->xauth_location);
|
||||
dump_cfg_string(sCiphers, o->ciphers);
|
||||
dump_cfg_string(sMacs, o->macs);
|
||||
- dump_cfg_string(sBanner, o->banner);
|
||||
+ dump_cfg_string(sBanner, o->banner != NULL ? o->banner : "none");
|
||||
dump_cfg_string(sForceCommand, o->adm_forced_command);
|
||||
dump_cfg_string(sChrootDirectory, o->chroot_directory);
|
||||
dump_cfg_string(sTrustedUserCAKeys, o->trusted_user_ca_keys);
|
@ -1,187 +0,0 @@
|
||||
diff -up openssh-7.4p1/monitor_wrap.c.audit-race openssh-7.4p1/monitor_wrap.c
|
||||
--- openssh-7.4p1/monitor_wrap.c.audit-race 2016-12-23 16:35:52.694685771 +0100
|
||||
+++ openssh-7.4p1/monitor_wrap.c 2016-12-23 16:35:52.697685772 +0100
|
||||
@@ -1107,4 +1107,50 @@ mm_audit_destroy_sensitive_data(const ch
|
||||
mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_AUDIT_SERVER_KEY_FREE, m);
|
||||
sshbuf_free(m);
|
||||
}
|
||||
+
|
||||
+int mm_forward_audit_messages(int fdin)
|
||||
+{
|
||||
+ u_char buf[4];
|
||||
+ u_int blen, msg_len;
|
||||
+ struct sshbuf *m;
|
||||
+ int r, ret = 0;
|
||||
+
|
||||
+ debug3("%s: entering", __func__);
|
||||
+ if ((m = sshbuf_new()) == NULL)
|
||||
+ fatal("%s: sshbuf_new failed", __func__);
|
||||
+ do {
|
||||
+ blen = atomicio(read, fdin, buf, sizeof(buf));
|
||||
+ if (blen == 0) /* closed pipe */
|
||||
+ break;
|
||||
+ if (blen != sizeof(buf)) {
|
||||
+ error("%s: Failed to read the buffer from child", __func__);
|
||||
+ ret = -1;
|
||||
+ break;
|
||||
+ }
|
||||
+
|
||||
+ msg_len = get_u32(buf);
|
||||
+ if (msg_len > 256 * 1024)
|
||||
+ fatal("%s: read: bad msg_len %d", __func__, msg_len);
|
||||
+ sshbuf_reset(m);
|
||||
+ if ((r = sshbuf_reserve(m, msg_len, NULL)) != 0)
|
||||
+ fatal("%s: buffer error: %s", __func__, ssh_err(r));
|
||||
+ if (atomicio(read, fdin, sshbuf_mutable_ptr(m), msg_len) != msg_len) {
|
||||
+ error("%s: Failed to read the the buffer content from the child", __func__);
|
||||
+ ret = -1;
|
||||
+ break;
|
||||
+ }
|
||||
+ if (atomicio(vwrite, pmonitor->m_recvfd, buf, blen) != blen ||
|
||||
+ atomicio(vwrite, pmonitor->m_recvfd, sshbuf_mutable_ptr(m), msg_len) != msg_len) {
|
||||
+ error("%s: Failed to write the message to the monitor", __func__);
|
||||
+ ret = -1;
|
||||
+ break;
|
||||
+ }
|
||||
+ } while (1);
|
||||
+ sshbuf_free(m);
|
||||
+ return ret;
|
||||
+}
|
||||
+void mm_set_monitor_pipe(int fd)
|
||||
+{
|
||||
+ pmonitor->m_recvfd = fd;
|
||||
+}
|
||||
#endif /* SSH_AUDIT_EVENTS */
|
||||
diff -up openssh-7.4p1/monitor_wrap.h.audit-race openssh-7.4p1/monitor_wrap.h
|
||||
--- openssh-7.4p1/monitor_wrap.h.audit-race 2016-12-23 16:35:52.694685771 +0100
|
||||
+++ openssh-7.4p1/monitor_wrap.h 2016-12-23 16:35:52.698685772 +0100
|
||||
@@ -83,6 +83,8 @@ void mm_audit_unsupported_body(int);
|
||||
void mm_audit_kex_body(struct ssh *, int, char *, char *, char *, char *, pid_t, uid_t);
|
||||
void mm_audit_session_key_free_body(struct ssh *, int, pid_t, uid_t);
|
||||
void mm_audit_destroy_sensitive_data(struct ssh *, const char *, pid_t, uid_t);
|
||||
+int mm_forward_audit_messages(int);
|
||||
+void mm_set_monitor_pipe(int);
|
||||
#endif
|
||||
|
||||
struct Session;
|
||||
diff -up openssh-7.4p1/session.c.audit-race openssh-7.4p1/session.c
|
||||
--- openssh-7.4p1/session.c.audit-race 2016-12-23 16:35:52.695685771 +0100
|
||||
+++ openssh-7.4p1/session.c 2016-12-23 16:37:26.339730596 +0100
|
||||
@@ -162,6 +162,10 @@ static Session *sessions = NULL;
|
||||
login_cap_t *lc;
|
||||
#endif
|
||||
|
||||
+#ifdef SSH_AUDIT_EVENTS
|
||||
+int paudit[2];
|
||||
+#endif
|
||||
+
|
||||
static int is_child = 0;
|
||||
static int in_chroot = 0;
|
||||
static int have_dev_log = 1;
|
||||
@@ -289,6 +293,8 @@ xauth_valid_string(const char *s)
|
||||
return 1;
|
||||
}
|
||||
|
||||
+void child_destory_sensitive_data(struct ssh *ssh);
|
||||
+
|
||||
#define USE_PIPES 1
|
||||
/*
|
||||
* This is called to fork and execute a command when we have no tty. This
|
||||
@@ -424,6 +430,8 @@ do_exec_no_pty(Session *s, const char *c
|
||||
close(err[0]);
|
||||
#endif
|
||||
|
||||
+ child_destory_sensitive_data(ssh);
|
||||
+
|
||||
/* Do processing for the child (exec command etc). */
|
||||
do_child(ssh, s, command);
|
||||
/* NOTREACHED */
|
||||
@@ -547,6 +555,9 @@ do_exec_pty(Session *s, const char *comm
|
||||
/* Close the extra descriptor for the pseudo tty. */
|
||||
close(ttyfd);
|
||||
|
||||
+ /* Do this early, so we will not block large MOTDs */
|
||||
+ child_destory_sensitive_data(ssh);
|
||||
+
|
||||
/* record login, etc. similar to login(1) */
|
||||
#ifndef HAVE_OSF_SIA
|
||||
do_login(ssh, s, command);
|
||||
@@ -717,6 +728,8 @@ do_exec(Session *s, const char *command)
|
||||
}
|
||||
if (s->command != NULL && s->ptyfd == -1)
|
||||
s->command_handle = PRIVSEP(audit_run_command(ssh, s->command));
|
||||
+ if (pipe(paudit) < 0)
|
||||
+ fatal("pipe: %s", strerror(errno));
|
||||
#endif
|
||||
if (s->ttyfd != -1)
|
||||
ret = do_exec_pty(ssh, s, command);
|
||||
@@ -732,6 +745,20 @@ do_exec(Session *s, const char *command)
|
||||
*/
|
||||
sshbuf_reset(loginmsg);
|
||||
|
||||
+#ifdef SSH_AUDIT_EVENTS
|
||||
+ close(paudit[1]);
|
||||
+ if (use_privsep && ret == 0) {
|
||||
+ /*
|
||||
+ * Read the audit messages from forked child and send them
|
||||
+ * back to monitor. We don't want to communicate directly,
|
||||
+ * because the messages might get mixed up.
|
||||
+ * Continue after the pipe gets closed (all messages sent).
|
||||
+ */
|
||||
+ ret = mm_forward_audit_messages(paudit[0]);
|
||||
+ }
|
||||
+ close(paudit[0]);
|
||||
+#endif /* SSH_AUDIT_EVENTS */
|
||||
+
|
||||
return ret;
|
||||
}
|
||||
|
||||
@@ -1538,6 +1565,34 @@ child_close_fds(void)
|
||||
log_redirect_stderr_to(NULL);
|
||||
}
|
||||
|
||||
+void
|
||||
+child_destory_sensitive_data(struct ssh *ssh)
|
||||
+{
|
||||
+#ifdef SSH_AUDIT_EVENTS
|
||||
+ int pparent = paudit[1];
|
||||
+ close(paudit[0]);
|
||||
+ /* Hack the monitor pipe to avoid race condition with parent */
|
||||
+ if (use_privsep)
|
||||
+ mm_set_monitor_pipe(pparent);
|
||||
+#endif
|
||||
+
|
||||
+ /* remove hostkey from the child's memory */
|
||||
+ destroy_sensitive_data(ssh, use_privsep);
|
||||
+ /*
|
||||
+ * We can audit this, because we hacked the pipe to direct the
|
||||
+ * messages over postauth child. But this message requires answer
|
||||
+ * which we can't do using one-way pipe.
|
||||
+ */
|
||||
+ packet_destroy_all(ssh, 0, 1);
|
||||
+ /* XXX this will clean the rest but should not audit anymore */
|
||||
+ /* packet_clear_keys(ssh); */
|
||||
+
|
||||
+#ifdef SSH_AUDIT_EVENTS
|
||||
+ /* Notify parent that we are done */
|
||||
+ close(pparent);
|
||||
+#endif
|
||||
+}
|
||||
+
|
||||
/*
|
||||
* Performs common processing for the child, such as setting up the
|
||||
* environment, closing extra file descriptors, setting the user and group
|
||||
@@ -1554,13 +1608,6 @@ do_child(Session *s, const char *command
|
||||
|
||||
sshpkt_fmt_connection_id(ssh, remote_id, sizeof(remote_id));
|
||||
|
||||
- /* remove hostkey from the child's memory */
|
||||
- destroy_sensitive_data(ssh, 1);
|
||||
- ssh_packet_clear_keys(ssh);
|
||||
- /* Don't audit this - both us and the parent would be talking to the
|
||||
- monitor over a single socket, with no synchronization. */
|
||||
- packet_destroy_all(ssh, 0, 1);
|
||||
-
|
||||
/* Force a password change */
|
||||
if (s->authctxt->force_pwchange) {
|
||||
do_setusercontext(pw);
|
@ -1,87 +0,0 @@
|
||||
diff --git a/auth-krb5.c b/auth-krb5.c
|
||||
index 2b02a04..19b9364 100644
|
||||
--- a/auth-krb5.c
|
||||
+++ b/auth-krb5.c
|
||||
@@ -375,5 +375,21 @@ cleanup:
|
||||
return (krb5_cc_resolve(ctx, ccname, ccache));
|
||||
}
|
||||
}
|
||||
+
|
||||
+/*
|
||||
+ * Reads k5login_directory option from the krb5.conf
|
||||
+ */
|
||||
+krb5_error_code
|
||||
+ssh_krb5_get_k5login_directory(krb5_context ctx, char **k5login_directory) {
|
||||
+ profile_t p;
|
||||
+ int ret = 0;
|
||||
+
|
||||
+ ret = krb5_get_profile(ctx, &p);
|
||||
+ if (ret)
|
||||
+ return ret;
|
||||
+
|
||||
+ return profile_get_string(p, "libdefaults", "k5login_directory", NULL, NULL,
|
||||
+ k5login_directory);
|
||||
+}
|
||||
#endif /* !HEIMDAL */
|
||||
#endif /* KRB5 */
|
||||
diff --git a/auth.h b/auth.h
|
||||
index f9d191c..c432d2f 100644
|
||||
--- a/auth.h
|
||||
+++ b/auth.h
|
||||
@@ -222,6 +222,8 @@ int sys_auth_passwd(Authctxt *, const char *);
|
||||
|
||||
#if defined(KRB5) && !defined(HEIMDAL)
|
||||
krb5_error_code ssh_krb5_cc_new_unique(krb5_context, krb5_ccache *, int *);
|
||||
+krb5_error_code ssh_krb5_get_k5login_directory(krb5_context ctx,
|
||||
+ char **k5login_directory);
|
||||
#endif
|
||||
|
||||
#endif /* AUTH_H */
|
||||
diff --git a/gss-serv-krb5.c b/gss-serv-krb5.c
|
||||
index a7c0c5f..df8cc9a 100644
|
||||
--- a/gss-serv-krb5.c
|
||||
+++ b/gss-serv-krb5.c
|
||||
@@ -244,8 +244,27 @@ ssh_gssapi_k5login_exists()
|
||||
{
|
||||
char file[MAXPATHLEN];
|
||||
struct passwd *pw = the_authctxt->pw;
|
||||
+ char *k5login_directory = NULL;
|
||||
+ int ret = 0;
|
||||
+
|
||||
+ ret = ssh_krb5_get_k5login_directory(krb_context, &k5login_directory);
|
||||
+ debug3("%s: k5login_directory = %s (rv=%d)", __func__, k5login_directory, ret);
|
||||
+ if (k5login_directory == NULL || ret != 0) {
|
||||
+ /* If not set, the library will look for k5login
|
||||
+ * files in the user's home directory, with the filename .k5login.
|
||||
+ */
|
||||
+ snprintf(file, sizeof(file), "%s/.k5login", pw->pw_dir);
|
||||
+ } else {
|
||||
+ /* If set, the library will look for a local user's k5login file
|
||||
+ * within the named directory, with a filename corresponding to the
|
||||
+ * local username.
|
||||
+ */
|
||||
+ snprintf(file, sizeof(file), "%s%s%s", k5login_directory,
|
||||
+ k5login_directory[strlen(k5login_directory)-1] != '/' ? "/" : "",
|
||||
+ pw->pw_name);
|
||||
+ }
|
||||
+ debug("%s: Checking existence of file %s", __func__, file);
|
||||
|
||||
- snprintf(file, sizeof(file), "%s/.k5login", pw->pw_dir);
|
||||
return access(file, F_OK) == 0;
|
||||
}
|
||||
|
||||
diff --git a/sshd.8 b/sshd.8
|
||||
index 5c4f15b..135e290 100644
|
||||
--- a/sshd.8
|
||||
+++ b/sshd.8
|
||||
@@ -806,6 +806,10 @@ rlogin/rsh.
|
||||
These files enforce GSSAPI/Kerberos authentication access control.
|
||||
Further details are described in
|
||||
.Xr ksu 1 .
|
||||
+The location of the k5login file depends on the configuration option
|
||||
+.Cm k5login_directory
|
||||
+in the
|
||||
+.Xr krb5.conf 5 .
|
||||
.Pp
|
||||
.It Pa ~/.ssh/
|
||||
This directory is the default location for all user-specific configuration
|
@ -1,52 +0,0 @@
|
||||
Zseries only: Leave the hardware filedescriptors open.
|
||||
|
||||
All filedescriptors above 2 are getting closed when a new
|
||||
sshd process to handle a new client connection is
|
||||
spawned. As the process also chroot into an empty filesystem
|
||||
without any device nodes, there is no chance to reopen the
|
||||
files. This patch filters out the reqired fds in the
|
||||
closefrom function so these are skipped in the close loop.
|
||||
|
||||
Author: Harald Freudenberger <freude@de.ibm.com>
|
||||
|
||||
---
|
||||
openbsd-compat/bsd-closefrom.c | 26 ++++++++++++++++++++++++++
|
||||
1 file changed, 26 insertions(+)
|
||||
|
||||
--- a/openbsd-compat/bsd-closefrom.c
|
||||
+++ b/openbsd-compat/bsd-closefrom.c
|
||||
@@ -82,7 +82,33 @@ closefrom(int lowfd)
|
||||
fd = strtol(dent->d_name, &endp, 10);
|
||||
if (dent->d_name != endp && *endp == '\0' &&
|
||||
fd >= 0 && fd < INT_MAX && fd >= lowfd && fd != dirfd(dirp))
|
||||
+#ifdef __s390__
|
||||
+ {
|
||||
+ /*
|
||||
+ * the filedescriptors used to communicate with
|
||||
+ * the device drivers to provide hardware support
|
||||
+ * should survive. HF <freude@de.ibm.com>
|
||||
+ */
|
||||
+ char fpath[PATH_MAX], lpath[PATH_MAX];
|
||||
+ len = snprintf(fpath, sizeof(fpath), "%s/%s",
|
||||
+ fdpath, dent->d_name);
|
||||
+ if (len > 0 && (size_t)len <= sizeof(fpath)) {
|
||||
+ len = readlink(fpath, lpath, sizeof(lpath));
|
||||
+ if (len > 0) {
|
||||
+ lpath[len] = 0;
|
||||
+ if (strstr(lpath, "dev/z90crypt")
|
||||
+ || strstr(lpath, "dev/zcrypt")
|
||||
+ || strstr(lpath, "dev/prandom")
|
||||
+ || strstr(lpath, "dev/shm/icastats"))
|
||||
+ fd = -1;
|
||||
+ }
|
||||
+ }
|
||||
+ if (fd >= 0)
|
||||
+ (void) close((int) fd);
|
||||
+ }
|
||||
+#else
|
||||
(void) close((int) fd);
|
||||
+#endif
|
||||
}
|
||||
(void) closedir(dirp);
|
||||
return;
|
||||
|
@ -1,53 +0,0 @@
|
||||
diff -up openssh-7.2p2/channels.c.x11 openssh-7.2p2/channels.c
|
||||
--- openssh-7.2p2/channels.c.x11 2016-03-09 19:04:48.000000000 +0100
|
||||
+++ openssh-7.2p2/channels.c 2016-06-03 10:42:04.775164520 +0200
|
||||
@@ -3990,21 +3990,24 @@ x11_create_display_inet(int x11_display_
|
||||
}
|
||||
|
||||
static int
|
||||
-connect_local_xsocket_path(const char *pathname)
|
||||
+connect_local_xsocket_path(const char *pathname, int len)
|
||||
{
|
||||
int sock;
|
||||
struct sockaddr_un addr;
|
||||
|
||||
+ if (len <= 0)
|
||||
+ return -1;
|
||||
sock = socket(AF_UNIX, SOCK_STREAM, 0);
|
||||
if (sock == -1)
|
||||
error("socket: %.100s", strerror(errno));
|
||||
memset(&addr, 0, sizeof(addr));
|
||||
addr.sun_family = AF_UNIX;
|
||||
- strlcpy(addr.sun_path, pathname, sizeof addr.sun_path);
|
||||
- if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) == 0)
|
||||
+ if (len > sizeof addr.sun_path)
|
||||
+ len = sizeof addr.sun_path;
|
||||
+ memcpy(addr.sun_path, pathname, len);
|
||||
+ if (connect(sock, (struct sockaddr *)&addr, sizeof addr - (sizeof addr.sun_path - len) ) == 0)
|
||||
return sock;
|
||||
close(sock);
|
||||
- error("connect %.100s: %.100s", addr.sun_path, strerror(errno));
|
||||
return -1;
|
||||
}
|
||||
|
||||
@@ -4012,8 +4015,18 @@ static int
|
||||
connect_local_xsocket(u_int dnr)
|
||||
{
|
||||
char buf[1024];
|
||||
- snprintf(buf, sizeof buf, _PATH_UNIX_X, dnr);
|
||||
- return connect_local_xsocket_path(buf);
|
||||
+ int len, ret;
|
||||
+ len = snprintf(buf + 1, sizeof (buf) - 1, _PATH_UNIX_X, dnr);
|
||||
+#ifdef linux
|
||||
+ /* try abstract socket first */
|
||||
+ buf[0] = '\0';
|
||||
+ if ((ret = connect_local_xsocket_path(buf, len + 1)) >= 0)
|
||||
+ return ret;
|
||||
+#endif
|
||||
+ if ((ret = connect_local_xsocket_path(buf + 1, len)) >= 0)
|
||||
+ return ret;
|
||||
+ error("connect %.100s: %.100s", buf + 1, strerror(errno));
|
||||
+ return -1;
|
||||
}
|
||||
|
||||
#ifdef __APPLE__
|
@ -1,213 +0,0 @@
|
||||
diff -up openssh-7.4p1/channels.c.x11max openssh-7.4p1/channels.c
|
||||
--- openssh-7.4p1/channels.c.x11max 2016-12-23 15:46:32.071506625 +0100
|
||||
+++ openssh-7.4p1/channels.c 2016-12-23 15:46:32.139506636 +0100
|
||||
@@ -152,8 +152,8 @@ static int all_opens_permitted = 0;
|
||||
#define FWD_PERMIT_ANY_HOST "*"
|
||||
|
||||
/* -- X11 forwarding */
|
||||
-/* Maximum number of fake X11 displays to try. */
|
||||
-#define MAX_DISPLAYS 1000
|
||||
+/* Minimum port number for X11 forwarding */
|
||||
+#define X11_PORT_MIN 6000
|
||||
|
||||
/* Per-channel callback for pre/post select() actions */
|
||||
typedef void chan_fn(struct ssh *, Channel *c,
|
||||
@@ -4228,7 +4228,7 @@ channel_send_window_changes(void)
|
||||
*/
|
||||
int
|
||||
x11_create_display_inet(struct ssh *ssh, int x11_display_offset,
|
||||
- int x11_use_localhost, int single_connection,
|
||||
+ int x11_use_localhost, int x11_max_displays, int single_connection,
|
||||
u_int *display_numberp, int **chanids)
|
||||
{
|
||||
Channel *nc = NULL;
|
||||
@@ -4240,10 +4241,15 @@ x11_create_display_inet(int x11_display_
|
||||
if (chanids == NULL)
|
||||
return -1;
|
||||
|
||||
+ /* Try to bind ports starting at 6000+X11DisplayOffset */
|
||||
+ x11_max_displays = x11_max_displays + x11_display_offset;
|
||||
+
|
||||
for (display_number = x11_display_offset;
|
||||
- display_number < MAX_DISPLAYS;
|
||||
+ display_number < x11_max_displays;
|
||||
display_number++) {
|
||||
- port = 6000 + display_number;
|
||||
+ port = X11_PORT_MIN + display_number;
|
||||
+ if (port < X11_PORT_MIN) /* overflow */
|
||||
+ break;
|
||||
memset(&hints, 0, sizeof(hints));
|
||||
hints.ai_family = ssh->chanctxt->IPv4or6;
|
||||
hints.ai_flags = x11_use_localhost ? 0: AI_PASSIVE;
|
||||
@@ -4295,7 +4301,7 @@ x11_create_display_inet(int x11_display_
|
||||
if (num_socks > 0)
|
||||
break;
|
||||
}
|
||||
- if (display_number >= MAX_DISPLAYS) {
|
||||
+ if (display_number >= x11_max_displays || port < X11_PORT_MIN ) {
|
||||
error("Failed to allocate internet-domain X11 display socket.");
|
||||
return -1;
|
||||
}
|
||||
@@ -4441,7 +4447,7 @@ x11_connect_display(void)
|
||||
memset(&hints, 0, sizeof(hints));
|
||||
hints.ai_family = ssh->chanctxt->IPv4or6;
|
||||
hints.ai_socktype = SOCK_STREAM;
|
||||
- snprintf(strport, sizeof strport, "%u", 6000 + display_number);
|
||||
+ snprintf(strport, sizeof strport, "%u", X11_PORT_MIN + display_number);
|
||||
if ((gaierr = getaddrinfo(buf, strport, &hints, &aitop)) != 0) {
|
||||
error("%.100s: unknown host. (%s)", buf,
|
||||
ssh_gai_strerror(gaierr));
|
||||
@@ -4457,7 +4463,7 @@ x11_connect_display(void)
|
||||
/* Connect it to the display. */
|
||||
if (connect(sock, ai->ai_addr, ai->ai_addrlen) == -1) {
|
||||
debug2("connect %.100s port %u: %.100s", buf,
|
||||
- 6000 + display_number, strerror(errno));
|
||||
+ X11_PORT_MIN + display_number, strerror(errno));
|
||||
close(sock);
|
||||
continue;
|
||||
}
|
||||
@@ -4466,8 +4472,8 @@ x11_connect_display(void)
|
||||
}
|
||||
freeaddrinfo(aitop);
|
||||
if (!ai) {
|
||||
- error("connect %.100s port %u: %.100s", buf,
|
||||
- 6000 + display_number, strerror(errno));
|
||||
+ error("connect %.100s port %u: %.100s", buf,
|
||||
+ X11_PORT_MIN + display_number, strerror(errno));
|
||||
return -1;
|
||||
}
|
||||
set_nodelay(sock);
|
||||
diff -up openssh-7.4p1/channels.h.x11max openssh-7.4p1/channels.h
|
||||
--- openssh-7.4p1/channels.h.x11max 2016-12-19 05:59:41.000000000 +0100
|
||||
+++ openssh-7.4p1/channels.h 2016-12-23 15:46:32.139506636 +0100
|
||||
@@ -293,7 +293,7 @@ int permitopen_port(const char *);
|
||||
|
||||
void channel_set_x11_refuse_time(struct ssh *, u_int);
|
||||
int x11_connect_display(struct ssh *);
|
||||
-int x11_create_display_inet(struct ssh *, int, int, int, u_int *, int **);
|
||||
+int x11_create_display_inet(struct ssh *, int, int, int, int, u_int *, int **);
|
||||
void x11_request_forwarding_with_spoofing(struct ssh *, int,
|
||||
const char *, const char *, const char *, int);
|
||||
|
||||
diff -up openssh-7.4p1/servconf.c.x11max openssh-7.4p1/servconf.c
|
||||
--- openssh-7.4p1/servconf.c.x11max 2016-12-23 15:46:32.133506635 +0100
|
||||
+++ openssh-7.4p1/servconf.c 2016-12-23 15:47:27.320519121 +0100
|
||||
@@ -95,6 +95,7 @@ initialize_server_options(ServerOptions
|
||||
options->print_lastlog = -1;
|
||||
options->x11_forwarding = -1;
|
||||
options->x11_display_offset = -1;
|
||||
+ options->x11_max_displays = -1;
|
||||
options->x11_use_localhost = -1;
|
||||
options->permit_tty = -1;
|
||||
options->permit_user_rc = -1;
|
||||
@@ -243,6 +244,8 @@ fill_default_server_options(ServerOption
|
||||
options->x11_forwarding = 0;
|
||||
if (options->x11_display_offset == -1)
|
||||
options->x11_display_offset = 10;
|
||||
+ if (options->x11_max_displays == -1)
|
||||
+ options->x11_max_displays = DEFAULT_MAX_DISPLAYS;
|
||||
if (options->x11_use_localhost == -1)
|
||||
options->x11_use_localhost = 1;
|
||||
if (options->xauth_location == NULL)
|
||||
@@ -419,7 +422,7 @@ typedef enum {
|
||||
sPasswordAuthentication, sKbdInteractiveAuthentication,
|
||||
sListenAddress, sAddressFamily,
|
||||
sPrintMotd, sPrintLastLog, sIgnoreRhosts,
|
||||
- sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
|
||||
+ sX11Forwarding, sX11DisplayOffset, sX11MaxDisplays, sX11UseLocalhost,
|
||||
sPermitTTY, sStrictModes, sEmptyPasswd, sTCPKeepAlive,
|
||||
sPermitUserEnvironment, sAllowTcpForwarding, sCompression,
|
||||
sRekeyLimit, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
|
||||
@@ -540,6 +543,7 @@ static struct {
|
||||
{ "ignoreuserknownhosts", sIgnoreUserKnownHosts, SSHCFG_GLOBAL },
|
||||
{ "x11forwarding", sX11Forwarding, SSHCFG_ALL },
|
||||
{ "x11displayoffset", sX11DisplayOffset, SSHCFG_ALL },
|
||||
+ { "x11maxdisplays", sX11MaxDisplays, SSHCFG_ALL },
|
||||
{ "x11uselocalhost", sX11UseLocalhost, SSHCFG_ALL },
|
||||
{ "xauthlocation", sXAuthLocation, SSHCFG_GLOBAL },
|
||||
{ "strictmodes", sStrictModes, SSHCFG_GLOBAL },
|
||||
@@ -1316,6 +1320,10 @@ process_server_config_line(ServerOptions
|
||||
*intptr = value;
|
||||
break;
|
||||
|
||||
+ case sX11MaxDisplays:
|
||||
+ intptr = &options->x11_max_displays;
|
||||
+ goto parse_int;
|
||||
+
|
||||
case sX11UseLocalhost:
|
||||
intptr = &options->x11_use_localhost;
|
||||
goto parse_flag;
|
||||
@@ -2063,6 +2071,7 @@ copy_set_server_options(ServerOptions *d
|
||||
M_CP_INTOPT(fwd_opts.streamlocal_bind_unlink);
|
||||
M_CP_INTOPT(x11_display_offset);
|
||||
M_CP_INTOPT(x11_forwarding);
|
||||
+ M_CP_INTOPT(x11_max_displays);
|
||||
M_CP_INTOPT(x11_use_localhost);
|
||||
M_CP_INTOPT(permit_tty);
|
||||
M_CP_INTOPT(permit_user_rc);
|
||||
@@ -2315,6 +2324,7 @@ dump_config(ServerOptions *o)
|
||||
#endif
|
||||
dump_cfg_int(sLoginGraceTime, o->login_grace_time);
|
||||
dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
|
||||
+ dump_cfg_int(sX11MaxDisplays, o->x11_max_displays);
|
||||
dump_cfg_int(sMaxAuthTries, o->max_authtries);
|
||||
dump_cfg_int(sMaxSessions, o->max_sessions);
|
||||
dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
|
||||
diff -up openssh-7.4p1/servconf.h.x11max openssh-7.4p1/servconf.h
|
||||
--- openssh-7.4p1/servconf.h.x11max 2016-12-23 15:46:32.133506635 +0100
|
||||
+++ openssh-7.4p1/servconf.h 2016-12-23 15:46:32.140506636 +0100
|
||||
@@ -55,6 +55,7 @@
|
||||
|
||||
#define DEFAULT_AUTH_FAIL_MAX 6 /* Default for MaxAuthTries */
|
||||
#define DEFAULT_SESSIONS_MAX 10 /* Default for MaxSessions */
|
||||
+#define DEFAULT_MAX_DISPLAYS 1000 /* Maximum number of fake X11 displays to try. */
|
||||
|
||||
/* Magic name for internal sftp-server */
|
||||
#define INTERNAL_SFTP_NAME "internal-sftp"
|
||||
@@ -85,6 +86,7 @@ typedef struct {
|
||||
int x11_forwarding; /* If true, permit inet (spoofing) X11 fwd. */
|
||||
int x11_display_offset; /* What DISPLAY number to start
|
||||
* searching at */
|
||||
+ int x11_max_displays; /* Number of displays to search */
|
||||
int x11_use_localhost; /* If true, use localhost for fake X11 server. */
|
||||
char *xauth_location; /* Location of xauth program */
|
||||
int permit_tty; /* If false, deny pty allocation */
|
||||
diff -up openssh-7.4p1/session.c.x11max openssh-7.4p1/session.c
|
||||
--- openssh-7.4p1/session.c.x11max 2016-12-23 15:46:32.136506636 +0100
|
||||
+++ openssh-7.4p1/session.c 2016-12-23 15:46:32.141506636 +0100
|
||||
@@ -2518,8 +2518,9 @@ session_setup_x11fwd(Session *s)
|
||||
return 0;
|
||||
}
|
||||
if (x11_create_display_inet(ssh, options.x11_display_offset,
|
||||
- options.x11_use_localhost, s->single_connection,
|
||||
- &s->display_number, &s->x11_chanids) == -1) {
|
||||
+ options.x11_use_localhost, options.x11_max_displays,
|
||||
+ s->single_connection, &s->display_number,
|
||||
+ &s->x11_chanids) == -1) {
|
||||
debug("x11_create_display_inet failed.");
|
||||
return 0;
|
||||
}
|
||||
diff -up openssh-7.4p1/sshd_config.5.x11max openssh-7.4p1/sshd_config.5
|
||||
--- openssh-7.4p1/sshd_config.5.x11max 2016-12-23 15:46:32.134506635 +0100
|
||||
+++ openssh-7.4p1/sshd_config.5 2016-12-23 15:46:32.141506636 +0100
|
||||
@@ -1133,6 +1133,7 @@ Available keywords are
|
||||
.Cm StreamLocalBindUnlink ,
|
||||
.Cm TrustedUserCAKeys ,
|
||||
.Cm X11DisplayOffset ,
|
||||
+.Cm X11MaxDisplays ,
|
||||
.Cm X11Forwarding
|
||||
and
|
||||
.Cm X11UseLocalhost .
|
||||
@@ -1566,6 +1567,12 @@ Specifies the first display number avail
|
||||
X11 forwarding.
|
||||
This prevents sshd from interfering with real X11 servers.
|
||||
The default is 10.
|
||||
+.It Cm X11MaxDisplays
|
||||
+Specifies the maximum number of displays available for
|
||||
+.Xr sshd 8 Ns 's
|
||||
+X11 forwarding.
|
||||
+This prevents sshd from exhausting local ports.
|
||||
+The default is 1000.
|
||||
.It Cm X11Forwarding
|
||||
Specifies whether X11 forwarding is permitted.
|
||||
The argument must be
|
@ -1,98 +0,0 @@
|
||||
commit 0e22b79bfde45a7cf7a2e51a68ec11c4285f3b31
|
||||
Author: Jakub Jelen <jjelen@redhat.com>
|
||||
Date: Mon Nov 21 15:04:06 2016 +0100
|
||||
|
||||
systemd stuff
|
||||
|
||||
diff --git a/configure.ac b/configure.ac
|
||||
index 2ffc369..162ce92 100644
|
||||
--- a/configure.ac
|
||||
+++ b/configure.ac
|
||||
@@ -4265,6 +4265,30 @@ AC_ARG_WITH([kerberos5],
|
||||
AC_SUBST([GSSLIBS])
|
||||
AC_SUBST([K5LIBS])
|
||||
|
||||
+# Check whether user wants systemd support
|
||||
+SYSTEMD_MSG="no"
|
||||
+AC_ARG_WITH(systemd,
|
||||
+ [ --with-systemd Enable systemd support],
|
||||
+ [ if test "x$withval" != "xno" ; then
|
||||
+ AC_PATH_TOOL([PKGCONFIG], [pkg-config], [no])
|
||||
+ if test "$PKGCONFIG" != "no"; then
|
||||
+ AC_MSG_CHECKING([for libsystemd])
|
||||
+ if $PKGCONFIG --exists libsystemd; then
|
||||
+ SYSTEMD_CFLAGS=`$PKGCONFIG --cflags libsystemd`
|
||||
+ SYSTEMD_LIBS=`$PKGCONFIG --libs libsystemd`
|
||||
+ CPPFLAGS="$CPPFLAGS $SYSTEMD_CFLAGS"
|
||||
+ SSHDLIBS="$SSHDLIBS $SYSTEMD_LIBS"
|
||||
+ AC_MSG_RESULT([yes])
|
||||
+ AC_DEFINE(HAVE_SYSTEMD, 1, [Define if you want systemd support.])
|
||||
+ SYSTEMD_MSG="yes"
|
||||
+ else
|
||||
+ AC_MSG_RESULT([no])
|
||||
+ fi
|
||||
+ fi
|
||||
+ fi ]
|
||||
+)
|
||||
+
|
||||
+
|
||||
# Looking for programs, paths and files
|
||||
|
||||
PRIVSEP_PATH=/var/empty
|
||||
@@ -5097,6 +5121,7 @@ echo " libedit support: $LIBEDIT_MSG"
|
||||
echo " Solaris process contract support: $SPC_MSG"
|
||||
echo " Solaris project support: $SP_MSG"
|
||||
echo " Solaris privilege support: $SPP_MSG"
|
||||
+echo " systemd support: $SYSTEMD_MSG"
|
||||
echo " IP address in \$DISPLAY hack: $DISPLAY_HACK_MSG"
|
||||
echo " Translate v4 in v6 hack: $IPV4_IN6_HACK_MSG"
|
||||
echo " BSD Auth support: $BSD_AUTH_MSG"
|
||||
diff --git a/contrib/sshd.service b/contrib/sshd.service
|
||||
new file mode 100644
|
||||
index 0000000..e0d4923
|
||||
--- /dev/null
|
||||
+++ b/contrib/sshd.service
|
||||
@@ -0,0 +1,16 @@
|
||||
+[Unit]
|
||||
+Description=OpenSSH server daemon
|
||||
+Documentation=man:sshd(8) man:sshd_config(5)
|
||||
+After=network.target
|
||||
+
|
||||
+[Service]
|
||||
+Type=notify
|
||||
+ExecStart=/usr/sbin/sshd -D $OPTIONS
|
||||
+ExecReload=/bin/kill -HUP $MAINPID
|
||||
+KillMode=process
|
||||
+Restart=on-failure
|
||||
+RestartPreventExitStatus=255
|
||||
+
|
||||
+[Install]
|
||||
+WantedBy=multi-user.target
|
||||
+
|
||||
diff --git a/sshd.c b/sshd.c
|
||||
index 816611c..b8b9d13 100644
|
||||
--- a/sshd.c
|
||||
+++ b/sshd.c
|
||||
@@ -85,6 +85,10 @@
|
||||
#include <prot.h>
|
||||
#endif
|
||||
|
||||
+#ifdef HAVE_SYSTEMD
|
||||
+#include <systemd/sd-daemon.h>
|
||||
+#endif
|
||||
+
|
||||
#include "xmalloc.h"
|
||||
#include "ssh.h"
|
||||
#include "ssh2.h"
|
||||
@@ -1888,6 +1892,11 @@ main(int ac, char **av)
|
||||
}
|
||||
}
|
||||
|
||||
+#ifdef HAVE_SYSTEMD
|
||||
+ /* Signal systemd that we are ready to accept connections */
|
||||
+ sd_notify(0, "READY=1");
|
||||
+#endif
|
||||
+
|
||||
/* Accept a connection and return in a forked child */
|
||||
server_accept_loop(&sock_in, &sock_out,
|
||||
&newsock, config_s);
|
@ -1,86 +0,0 @@
|
||||
In order to use the OpenSSL-ibmpkcs11 engine it is needed to allow flock
|
||||
and ipc calls, because this engine calls OpenCryptoki (a PKCS#11
|
||||
implementation) which calls the libraries that will communicate with the
|
||||
crypto cards. OpenCryptoki makes use of flock and ipc and, as of now,
|
||||
this is only need on s390 architecture.
|
||||
|
||||
Signed-off-by: Eduardo Barretto <ebarretto@xxxxxxxxxxxxxxxxxx>
|
||||
---
|
||||
sandbox-seccomp-filter.c | 6 ++++++
|
||||
1 file changed, 6 insertions(+)
|
||||
|
||||
diff --git a/sandbox-seccomp-filter.c b/sandbox-seccomp-filter.c
|
||||
index ca75cc7..6e7de31 100644
|
||||
--- a/sandbox-seccomp-filter.c
|
||||
+++ b/sandbox-seccomp-filter.c
|
||||
@@ -166,6 +166,9 @@ static const struct sock_filter preauth_insns[] = {
|
||||
#ifdef __NR_exit_group
|
||||
SC_ALLOW(__NR_exit_group),
|
||||
#endif
|
||||
+#if defined(__NR_flock) && defined(__s390__)
|
||||
+ SC_ALLOW(__NR_flock),
|
||||
+#endif
|
||||
#ifdef __NR_futex
|
||||
SC_ALLOW(__NR_futex),
|
||||
#endif
|
||||
@@ -178,6 +181,9 @@ static const struct sock_filter preauth_insns[] = {
|
||||
#ifdef __NR_gettimeofday
|
||||
SC_ALLOW(__NR_gettimeofday),
|
||||
#endif
|
||||
+#if defined(__NR_ipc) && defined(__s390__)
|
||||
+ SC_ALLOW(__NR_ipc),
|
||||
+#endif
|
||||
#ifdef __NR_getuid
|
||||
SC_ALLOW(__NR_getuid),
|
||||
#endif
|
||||
--
|
||||
1.9.1
|
||||
|
||||
getuid and geteuid are needed when using an openssl engine that calls a
|
||||
crypto card, e.g. ICA (libica).
|
||||
Those syscalls are also needed by the distros for audit code.
|
||||
|
||||
Signed-off-by: Eduardo Barretto <ebarretto@xxxxxxxxxxxxxxxxxx>
|
||||
---
|
||||
sandbox-seccomp-filter.c | 12 ++++++++++++
|
||||
1 file changed, 12 insertions(+)
|
||||
|
||||
diff --git a/sandbox-seccomp-filter.c b/sandbox-seccomp-filter.c
|
||||
index 6e7de31..e86aa2c 100644
|
||||
--- a/sandbox-seccomp-filter.c
|
||||
+++ b/sandbox-seccomp-filter.c
|
||||
@@ -175,6 +175,18 @@ static const struct sock_filter preauth_insns[] = {
|
||||
#ifdef __NR_getpid
|
||||
SC_ALLOW(__NR_getpid),
|
||||
#endif
|
||||
+#ifdef __NR_getuid
|
||||
+ SC_ALLOW(__NR_getuid),
|
||||
+#endif
|
||||
+#ifdef __NR_getuid32
|
||||
+ SC_ALLOW(__NR_getuid32),
|
||||
+#endif
|
||||
+#ifdef __NR_geteuid
|
||||
+ SC_ALLOW(__NR_geteuid),
|
||||
+#endif
|
||||
+#ifdef __NR_geteuid32
|
||||
+ SC_ALLOW(__NR_geteuid32),
|
||||
+#endif
|
||||
#ifdef __NR_getrandom
|
||||
SC_ALLOW(__NR_getrandom),
|
||||
#endif
|
||||
-- 1.9.1
|
||||
1.9.1
|
||||
diff -up openssh-7.6p1/sandbox-seccomp-filter.c.sandbox openssh-7.6p1/sandbox-seccomp-filter.c
|
||||
--- openssh-7.6p1/sandbox-seccomp-filter.c.sandbox 2017-12-12 13:59:30.563874059 +0100
|
||||
+++ openssh-7.6p1/sandbox-seccomp-filter.c 2017-12-12 13:59:14.842784083 +0100
|
||||
@@ -190,6 +190,9 @@ static const struct sock_filter preauth_
|
||||
#ifdef __NR_geteuid32
|
||||
SC_ALLOW(__NR_geteuid32),
|
||||
#endif
|
||||
+#ifdef __NR_gettid
|
||||
+ SC_ALLOW(__NR_gettid),
|
||||
+#endif
|
||||
#ifdef __NR_getrandom
|
||||
SC_ALLOW(__NR_getrandom),
|
||||
#endif
|
||||
|
File diff suppressed because it is too large
Load Diff
@ -1,271 +0,0 @@
|
||||
diff -up openssh/auth2-pubkey.c.refactor openssh/auth2-pubkey.c
|
||||
--- openssh/auth2-pubkey.c.refactor 2019-04-04 13:19:12.188821236 +0200
|
||||
+++ openssh/auth2-pubkey.c 2019-04-04 13:19:12.276822078 +0200
|
||||
@@ -72,6 +72,9 @@
|
||||
extern ServerOptions options;
|
||||
extern u_char *session_id2;
|
||||
extern u_int session_id2_len;
|
||||
+extern int inetd_flag;
|
||||
+extern int rexeced_flag;
|
||||
+extern Authctxt *the_authctxt;
|
||||
|
||||
static char *
|
||||
format_key(const struct sshkey *key)
|
||||
@@ -511,7 +514,8 @@ match_principals_command(struct ssh *ssh
|
||||
|
||||
if ((pid = subprocess("AuthorizedPrincipalsCommand", runas_pw, command,
|
||||
ac, av, &f,
|
||||
- SSH_SUBPROCESS_STDOUT_CAPTURE|SSH_SUBPROCESS_STDERR_DISCARD)) == 0)
|
||||
+ SSH_SUBPROCESS_STDOUT_CAPTURE|SSH_SUBPROCESS_STDERR_DISCARD,
|
||||
+ (inetd_flag && !rexeced_flag), the_authctxt)) == 0)
|
||||
goto out;
|
||||
|
||||
uid_swapped = 1;
|
||||
@@ -981,7 +985,8 @@ user_key_command_allowed2(struct ssh *ss
|
||||
|
||||
if ((pid = subprocess("AuthorizedKeysCommand", runas_pw, command,
|
||||
ac, av, &f,
|
||||
- SSH_SUBPROCESS_STDOUT_CAPTURE|SSH_SUBPROCESS_STDERR_DISCARD)) == 0)
|
||||
+ SSH_SUBPROCESS_STDOUT_CAPTURE|SSH_SUBPROCESS_STDERR_DISCARD,
|
||||
+ (inetd_flag && !rexeced_flag), the_authctxt)) == 0)
|
||||
goto out;
|
||||
|
||||
uid_swapped = 1;
|
||||
diff -up openssh/auth.c.refactor openssh/auth.c
|
||||
--- openssh/auth.c.refactor 2019-04-04 13:19:12.235821686 +0200
|
||||
+++ openssh/auth.c 2019-04-04 13:19:12.276822078 +0200
|
||||
@@ -756,7 +756,8 @@ auth_get_canonical_hostname(struct ssh *
|
||||
*/
|
||||
pid_t
|
||||
subprocess(const char *tag, struct passwd *pw, const char *command,
|
||||
- int ac, char **av, FILE **child, u_int flags)
|
||||
+ int ac, char **av, FILE **child, u_int flags, int inetd,
|
||||
+ void *the_authctxt)
|
||||
{
|
||||
FILE *f = NULL;
|
||||
struct stat st;
|
||||
@@ -872,7 +873,7 @@ subprocess(const char *tag, struct passw
|
||||
}
|
||||
|
||||
#ifdef WITH_SELINUX
|
||||
- if (sshd_selinux_setup_env_variables() < 0) {
|
||||
+ if (sshd_selinux_setup_env_variables(inetd, the_authctxt) < 0) {
|
||||
error ("failed to copy environment: %s",
|
||||
strerror(errno));
|
||||
_exit(127);
|
||||
diff -up openssh/auth.h.refactor openssh/auth.h
|
||||
--- openssh/auth.h.refactor 2019-04-04 13:19:12.251821839 +0200
|
||||
+++ openssh/auth.h 2019-04-04 13:19:12.276822078 +0200
|
||||
@@ -235,7 +235,7 @@ struct passwd *fakepw(void);
|
||||
#define SSH_SUBPROCESS_STDOUT_CAPTURE (1<<1) /* Redirect stdout */
|
||||
#define SSH_SUBPROCESS_STDERR_DISCARD (1<<2) /* Discard stderr */
|
||||
pid_t subprocess(const char *, struct passwd *,
|
||||
- const char *, int, char **, FILE **, u_int flags);
|
||||
+ const char *, int, char **, FILE **, u_int flags, int, void *);
|
||||
|
||||
int sys_auth_passwd(struct ssh *, const char *);
|
||||
|
||||
diff -up openssh/openbsd-compat/port-linux.h.refactor openssh/openbsd-compat/port-linux.h
|
||||
--- openssh/openbsd-compat/port-linux.h.refactor 2019-04-04 13:19:12.256821887 +0200
|
||||
+++ openssh/openbsd-compat/port-linux.h 2019-04-04 13:19:12.276822078 +0200
|
||||
@@ -26,8 +26,8 @@ void ssh_selinux_setfscreatecon(const ch
|
||||
|
||||
int sshd_selinux_enabled(void);
|
||||
void sshd_selinux_copy_context(void);
|
||||
-void sshd_selinux_setup_exec_context(char *);
|
||||
-int sshd_selinux_setup_env_variables(void);
|
||||
+void sshd_selinux_setup_exec_context(char *, int, int(char *, const char *), void *, int);
|
||||
+int sshd_selinux_setup_env_variables(int inetd, void *);
|
||||
void sshd_selinux_change_privsep_preauth_context(void);
|
||||
#endif
|
||||
|
||||
diff -up openssh/openbsd-compat/port-linux-sshd.c.refactor openssh/openbsd-compat/port-linux-sshd.c
|
||||
--- openssh/openbsd-compat/port-linux-sshd.c.refactor 2019-04-04 13:19:12.256821887 +0200
|
||||
+++ openssh/openbsd-compat/port-linux-sshd.c 2019-04-04 13:19:12.276822078 +0200
|
||||
@@ -49,11 +49,6 @@
|
||||
#include <unistd.h>
|
||||
#endif
|
||||
|
||||
-extern ServerOptions options;
|
||||
-extern Authctxt *the_authctxt;
|
||||
-extern int inetd_flag;
|
||||
-extern int rexeced_flag;
|
||||
-
|
||||
/* Wrapper around is_selinux_enabled() to log its return value once only */
|
||||
int
|
||||
sshd_selinux_enabled(void)
|
||||
@@ -223,7 +218,8 @@ get_user_context(const char *sename, con
|
||||
}
|
||||
|
||||
static void
|
||||
-ssh_selinux_get_role_level(char **role, const char **level)
|
||||
+ssh_selinux_get_role_level(char **role, const char **level,
|
||||
+ Authctxt *the_authctxt)
|
||||
{
|
||||
*role = NULL;
|
||||
*level = NULL;
|
||||
@@ -241,8 +237,8 @@ ssh_selinux_get_role_level(char **role,
|
||||
|
||||
/* Return the default security context for the given username */
|
||||
static int
|
||||
-sshd_selinux_getctxbyname(char *pwname,
|
||||
- security_context_t *default_sc, security_context_t *user_sc)
|
||||
+sshd_selinux_getctxbyname(char *pwname, security_context_t *default_sc,
|
||||
+ security_context_t *user_sc, int inetd, Authctxt *the_authctxt)
|
||||
{
|
||||
char *sename, *lvl;
|
||||
char *role;
|
||||
@@ -250,7 +246,7 @@ sshd_selinux_getctxbyname(char *pwname,
|
||||
int r = 0;
|
||||
context_t con = NULL;
|
||||
|
||||
- ssh_selinux_get_role_level(&role, &reqlvl);
|
||||
+ ssh_selinux_get_role_level(&role, &reqlvl, the_authctxt);
|
||||
|
||||
#ifdef HAVE_GETSEUSERBYNAME
|
||||
if ((r=getseuserbyname(pwname, &sename, &lvl)) != 0) {
|
||||
@@ -272,7 +268,7 @@ sshd_selinux_getctxbyname(char *pwname,
|
||||
|
||||
if (r == 0) {
|
||||
/* If launched from xinetd, we must use current level */
|
||||
- if (inetd_flag && !rexeced_flag) {
|
||||
+ if (inetd) {
|
||||
security_context_t sshdsc=NULL;
|
||||
|
||||
if (getcon_raw(&sshdsc) < 0)
|
||||
@@ -333,7 +329,8 @@ sshd_selinux_getctxbyname(char *pwname,
|
||||
|
||||
/* Setup environment variables for pam_selinux */
|
||||
static int
|
||||
-sshd_selinux_setup_variables(int(*set_it)(char *, const char *))
|
||||
+sshd_selinux_setup_variables(int(*set_it)(char *, const char *), int inetd,
|
||||
+ Authctxt *the_authctxt)
|
||||
{
|
||||
const char *reqlvl;
|
||||
char *role;
|
||||
@@ -342,11 +339,11 @@ sshd_selinux_setup_variables(int(*set_it
|
||||
|
||||
debug3("%s: setting execution context", __func__);
|
||||
|
||||
- ssh_selinux_get_role_level(&role, &reqlvl);
|
||||
+ ssh_selinux_get_role_level(&role, &reqlvl, the_authctxt);
|
||||
|
||||
rv = set_it("SELINUX_ROLE_REQUESTED", role ? role : "");
|
||||
|
||||
- if (inetd_flag && !rexeced_flag) {
|
||||
+ if (inetd) {
|
||||
use_current = "1";
|
||||
} else {
|
||||
use_current = "";
|
||||
@@ -362,9 +359,10 @@ sshd_selinux_setup_variables(int(*set_it
|
||||
}
|
||||
|
||||
static int
|
||||
-sshd_selinux_setup_pam_variables(void)
|
||||
+sshd_selinux_setup_pam_variables(int inetd,
|
||||
+ int(pam_setenv)(char *, const char *), Authctxt *the_authctxt)
|
||||
{
|
||||
- return sshd_selinux_setup_variables(do_pam_putenv);
|
||||
+ return sshd_selinux_setup_variables(pam_setenv, inetd, the_authctxt);
|
||||
}
|
||||
|
||||
static int
|
||||
@@ -374,25 +372,28 @@ do_setenv(char *name, const char *value)
|
||||
}
|
||||
|
||||
int
|
||||
-sshd_selinux_setup_env_variables(void)
|
||||
+sshd_selinux_setup_env_variables(int inetd, void *the_authctxt)
|
||||
{
|
||||
- return sshd_selinux_setup_variables(do_setenv);
|
||||
+ Authctxt *authctxt = (Authctxt *) the_authctxt;
|
||||
+ return sshd_selinux_setup_variables(do_setenv, inetd, authctxt);
|
||||
}
|
||||
|
||||
/* Set the execution context to the default for the specified user */
|
||||
void
|
||||
-sshd_selinux_setup_exec_context(char *pwname)
|
||||
+sshd_selinux_setup_exec_context(char *pwname, int inetd,
|
||||
+ int(pam_setenv)(char *, const char *), void *the_authctxt, int use_pam)
|
||||
{
|
||||
security_context_t user_ctx = NULL;
|
||||
int r = 0;
|
||||
security_context_t default_ctx = NULL;
|
||||
+ Authctxt *authctxt = (Authctxt *) the_authctxt;
|
||||
|
||||
if (!sshd_selinux_enabled())
|
||||
return;
|
||||
|
||||
- if (options.use_pam) {
|
||||
+ if (use_pam) {
|
||||
/* do not compute context, just setup environment for pam_selinux */
|
||||
- if (sshd_selinux_setup_pam_variables()) {
|
||||
+ if (sshd_selinux_setup_pam_variables(inetd, pam_setenv, authctxt)) {
|
||||
switch (security_getenforce()) {
|
||||
case -1:
|
||||
fatal("%s: security_getenforce() failed", __func__);
|
||||
@@ -410,7 +411,7 @@ sshd_selinux_setup_exec_context(char *pw
|
||||
|
||||
debug3("%s: setting execution context", __func__);
|
||||
|
||||
- r = sshd_selinux_getctxbyname(pwname, &default_ctx, &user_ctx);
|
||||
+ r = sshd_selinux_getctxbyname(pwname, &default_ctx, &user_ctx, inetd, authctxt);
|
||||
if (r >= 0) {
|
||||
r = setexeccon(user_ctx);
|
||||
if (r < 0) {
|
||||
diff -up openssh/platform.c.refactor openssh/platform.c
|
||||
--- openssh/platform.c.refactor 2019-04-04 13:19:12.204821389 +0200
|
||||
+++ openssh/platform.c 2019-04-04 13:19:12.277822088 +0200
|
||||
@@ -32,6 +32,9 @@
|
||||
|
||||
extern int use_privsep;
|
||||
extern ServerOptions options;
|
||||
+extern int inetd_flag;
|
||||
+extern int rexeced_flag;
|
||||
+extern Authctxt *the_authctxt;
|
||||
|
||||
void
|
||||
platform_pre_listen(void)
|
||||
@@ -183,7 +186,9 @@ platform_setusercontext_post_groups(stru
|
||||
}
|
||||
#endif /* HAVE_SETPCRED */
|
||||
#ifdef WITH_SELINUX
|
||||
- sshd_selinux_setup_exec_context(pw->pw_name);
|
||||
+ sshd_selinux_setup_exec_context(pw->pw_name,
|
||||
+ (inetd_flag && !rexeced_flag), do_pam_putenv, the_authctxt,
|
||||
+ options.use_pam);
|
||||
#endif
|
||||
}
|
||||
|
||||
diff -up openssh/sshd.c.refactor openssh/sshd.c
|
||||
--- openssh/sshd.c.refactor 2019-04-04 13:19:12.275822068 +0200
|
||||
+++ openssh/sshd.c 2019-04-04 13:19:51.270195262 +0200
|
||||
@@ -158,7 +158,7 @@ int debug_flag = 0;
|
||||
static int test_flag = 0;
|
||||
|
||||
/* Flag indicating that the daemon is being started from inetd. */
|
||||
-static int inetd_flag = 0;
|
||||
+int inetd_flag = 0;
|
||||
|
||||
/* Flag indicating that sshd should not detach and become a daemon. */
|
||||
static int no_daemon_flag = 0;
|
||||
@@ -171,7 +171,7 @@ static char **saved_argv;
|
||||
static int saved_argc;
|
||||
|
||||
/* re-exec */
|
||||
-static int rexeced_flag = 0;
|
||||
+int rexeced_flag = 0;
|
||||
static int rexec_flag = 1;
|
||||
static int rexec_argc = 0;
|
||||
static char **rexec_argv;
|
||||
@@ -2192,7 +2192,9 @@ main(int ac, char **av)
|
||||
}
|
||||
#endif
|
||||
#ifdef WITH_SELINUX
|
||||
- sshd_selinux_setup_exec_context(authctxt->pw->pw_name);
|
||||
+ sshd_selinux_setup_exec_context(authctxt->pw->pw_name,
|
||||
+ (inetd_flag && !rexeced_flag), do_pam_putenv, the_authctxt,
|
||||
+ options.use_pam);
|
||||
#endif
|
||||
#ifdef USE_PAM
|
||||
if (options.use_pam) {
|
@ -1,457 +0,0 @@
|
||||
diff -up openssh-8.0p1/cipher-ctr.c.fips openssh-8.0p1/cipher-ctr.c
|
||||
--- openssh-8.0p1/cipher-ctr.c.fips 2019-07-23 14:55:45.326525641 +0200
|
||||
+++ openssh-8.0p1/cipher-ctr.c 2019-07-23 14:55:45.401526401 +0200
|
||||
@@ -179,7 +179,8 @@ evp_aes_128_ctr(void)
|
||||
aes_ctr.do_cipher = ssh_aes_ctr;
|
||||
#ifndef SSH_OLD_EVP
|
||||
aes_ctr.flags = EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH |
|
||||
- EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CUSTOM_IV;
|
||||
+ EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CUSTOM_IV |
|
||||
+ EVP_CIPH_FLAG_FIPS;
|
||||
#endif
|
||||
return (&aes_ctr);
|
||||
}
|
||||
diff -up openssh-8.0p1/dh.c.fips openssh-8.0p1/dh.c
|
||||
--- openssh-8.0p1/dh.c.fips 2019-04-18 00:52:57.000000000 +0200
|
||||
+++ openssh-8.0p1/dh.c 2019-07-23 14:55:45.401526401 +0200
|
||||
@@ -152,6 +152,12 @@ choose_dh(int min, int wantbits, int max
|
||||
int best, bestcount, which, linenum;
|
||||
struct dhgroup dhg;
|
||||
|
||||
+ if (FIPS_mode()) {
|
||||
+ logit("Using arbitrary primes is not allowed in FIPS mode."
|
||||
+ " Falling back to known groups.");
|
||||
+ return (dh_new_group_fallback(max));
|
||||
+ }
|
||||
+
|
||||
if ((f = fopen(_PATH_DH_MODULI, "r")) == NULL) {
|
||||
logit("WARNING: could not open %s (%s), using fixed modulus",
|
||||
_PATH_DH_MODULI, strerror(errno));
|
||||
@@ -489,4 +495,38 @@ dh_estimate(int bits)
|
||||
return 8192;
|
||||
}
|
||||
|
||||
+/*
|
||||
+ * Compares the received DH parameters with known-good groups,
|
||||
+ * which might be either from group14, group16 or group18.
|
||||
+ */
|
||||
+int
|
||||
+dh_is_known_group(const DH *dh)
|
||||
+{
|
||||
+ const BIGNUM *p, *g;
|
||||
+ const BIGNUM *known_p, *known_g;
|
||||
+ DH *known = NULL;
|
||||
+ int bits = 0, rv = 0;
|
||||
+
|
||||
+ DH_get0_pqg(dh, &p, NULL, &g);
|
||||
+ bits = BN_num_bits(p);
|
||||
+
|
||||
+ if (bits <= 3072) {
|
||||
+ known = dh_new_group14();
|
||||
+ } else if (bits <= 6144) {
|
||||
+ known = dh_new_group16();
|
||||
+ } else {
|
||||
+ known = dh_new_group18();
|
||||
+ }
|
||||
+
|
||||
+ DH_get0_pqg(known, &known_p, NULL, &known_g);
|
||||
+
|
||||
+ if (BN_cmp(g, known_g) == 0 &&
|
||||
+ BN_cmp(p, known_p) == 0) {
|
||||
+ rv = 1;
|
||||
+ }
|
||||
+
|
||||
+ DH_free(known);
|
||||
+ return rv;
|
||||
+}
|
||||
+
|
||||
#endif /* WITH_OPENSSL */
|
||||
diff -up openssh-8.0p1/dh.h.fips openssh-8.0p1/dh.h
|
||||
--- openssh-8.0p1/dh.h.fips 2019-04-18 00:52:57.000000000 +0200
|
||||
+++ openssh-8.0p1/dh.h 2019-07-23 14:55:45.401526401 +0200
|
||||
@@ -43,6 +43,7 @@ DH *dh_new_group_fallback(int);
|
||||
|
||||
int dh_gen_key(DH *, int);
|
||||
int dh_pub_is_valid(const DH *, const BIGNUM *);
|
||||
+int dh_is_known_group(const DH *);
|
||||
|
||||
u_int dh_estimate(int);
|
||||
|
||||
diff -up openssh-8.0p1/kex.c.fips openssh-8.0p1/kex.c
|
||||
--- openssh-8.0p1/kex.c.fips 2019-07-23 14:55:45.395526340 +0200
|
||||
+++ openssh-8.0p1/kex.c 2019-07-23 14:55:45.402526411 +0200
|
||||
@@ -199,7 +199,10 @@ kex_names_valid(const char *names)
|
||||
for ((p = strsep(&cp, ",")); p && *p != '\0';
|
||||
(p = strsep(&cp, ","))) {
|
||||
if (kex_alg_by_name(p) == NULL) {
|
||||
- error("Unsupported KEX algorithm \"%.100s\"", p);
|
||||
+ if (FIPS_mode())
|
||||
+ error("\"%.100s\" is not allowed in FIPS mode", p);
|
||||
+ else
|
||||
+ error("Unsupported KEX algorithm \"%.100s\"", p);
|
||||
free(s);
|
||||
return 0;
|
||||
}
|
||||
diff -up openssh-8.0p1/kexgexc.c.fips openssh-8.0p1/kexgexc.c
|
||||
--- openssh-8.0p1/kexgexc.c.fips 2019-04-18 00:52:57.000000000 +0200
|
||||
+++ openssh-8.0p1/kexgexc.c 2019-07-23 14:55:45.402526411 +0200
|
||||
@@ -28,6 +28,7 @@
|
||||
|
||||
#ifdef WITH_OPENSSL
|
||||
|
||||
+#include <openssl/crypto.h>
|
||||
#include <sys/types.h>
|
||||
|
||||
#include <openssl/dh.h>
|
||||
@@ -113,6 +114,10 @@ input_kex_dh_gex_group(int type, u_int32
|
||||
r = SSH_ERR_ALLOC_FAIL;
|
||||
goto out;
|
||||
}
|
||||
+ if (FIPS_mode() && dh_is_known_group(kex->dh) == 0) {
|
||||
+ r = SSH_ERR_INVALID_ARGUMENT;
|
||||
+ goto out;
|
||||
+ }
|
||||
p = g = NULL; /* belong to kex->dh now */
|
||||
|
||||
/* generate and send 'e', client DH public key */
|
||||
diff -up openssh-8.0p1/myproposal.h.fips openssh-8.0p1/myproposal.h
|
||||
--- openssh-8.0p1/myproposal.h.fips 2019-04-18 00:52:57.000000000 +0200
|
||||
+++ openssh-8.0p1/myproposal.h 2019-07-23 14:55:45.402526411 +0200
|
||||
@@ -111,6 +111,20 @@
|
||||
"rsa-sha2-256," \
|
||||
"ssh-rsa"
|
||||
|
||||
+#define KEX_FIPS_PK_ALG \
|
||||
+ "ecdsa-sha2-nistp256-cert-v01@openssh.com," \
|
||||
+ "ecdsa-sha2-nistp384-cert-v01@openssh.com," \
|
||||
+ "ecdsa-sha2-nistp521-cert-v01@openssh.com," \
|
||||
+ "rsa-sha2-512-cert-v01@openssh.com," \
|
||||
+ "rsa-sha2-256-cert-v01@openssh.com," \
|
||||
+ "ssh-rsa-cert-v01@openssh.com," \
|
||||
+ "ecdsa-sha2-nistp256," \
|
||||
+ "ecdsa-sha2-nistp384," \
|
||||
+ "ecdsa-sha2-nistp521," \
|
||||
+ "rsa-sha2-512," \
|
||||
+ "rsa-sha2-256," \
|
||||
+ "ssh-rsa"
|
||||
+
|
||||
#define KEX_SERVER_ENCRYPT \
|
||||
"chacha20-poly1305@openssh.com," \
|
||||
"aes128-ctr,aes192-ctr,aes256-ctr," \
|
||||
@@ -134,6 +142,27 @@
|
||||
|
||||
#define KEX_CLIENT_MAC KEX_SERVER_MAC
|
||||
|
||||
+#define KEX_FIPS_ENCRYPT \
|
||||
+ "aes128-ctr,aes192-ctr,aes256-ctr," \
|
||||
+ "aes128-cbc,3des-cbc," \
|
||||
+ "aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se," \
|
||||
+ "aes128-gcm@openssh.com,aes256-gcm@openssh.com"
|
||||
+#define KEX_DEFAULT_KEX_FIPS \
|
||||
+ "ecdh-sha2-nistp256," \
|
||||
+ "ecdh-sha2-nistp384," \
|
||||
+ "ecdh-sha2-nistp521," \
|
||||
+ "diffie-hellman-group-exchange-sha256," \
|
||||
+ "diffie-hellman-group16-sha512," \
|
||||
+ "diffie-hellman-group18-sha512," \
|
||||
+ "diffie-hellman-group14-sha256"
|
||||
+#define KEX_FIPS_MAC \
|
||||
+ "hmac-sha1," \
|
||||
+ "hmac-sha2-256," \
|
||||
+ "hmac-sha2-512," \
|
||||
+ "hmac-sha1-etm@openssh.com," \
|
||||
+ "hmac-sha2-256-etm@openssh.com," \
|
||||
+ "hmac-sha2-512-etm@openssh.com"
|
||||
+
|
||||
/* Not a KEX value, but here so all the algorithm defaults are together */
|
||||
#define SSH_ALLOWED_CA_SIGALGS \
|
||||
"ecdsa-sha2-nistp256," \
|
||||
diff -up openssh-8.0p1/readconf.c.fips openssh-8.0p1/readconf.c
|
||||
--- openssh-8.0p1/readconf.c.fips 2019-07-23 14:55:45.334525723 +0200
|
||||
+++ openssh-8.0p1/readconf.c 2019-07-23 14:55:45.402526411 +0200
|
||||
@@ -2179,11 +2179,16 @@ fill_default_options(Options * options)
|
||||
all_key = sshkey_alg_list(0, 0, 1, ',');
|
||||
all_sig = sshkey_alg_list(0, 1, 1, ',');
|
||||
/* remove unsupported algos from default lists */
|
||||
- def_cipher = match_filter_allowlist(KEX_CLIENT_ENCRYPT, all_cipher);
|
||||
- def_mac = match_filter_allowlist(KEX_CLIENT_MAC, all_mac);
|
||||
- def_kex = match_filter_allowlist(KEX_CLIENT_KEX, all_kex);
|
||||
- def_key = match_filter_allowlist(KEX_DEFAULT_PK_ALG, all_key);
|
||||
- def_sig = match_filter_allowlist(SSH_ALLOWED_CA_SIGALGS, all_sig);
|
||||
+ def_cipher = match_filter_allowlist((FIPS_mode() ?
|
||||
+ KEX_FIPS_ENCRYPT : KEX_CLIENT_ENCRYPT), all_cipher);
|
||||
+ def_mac = match_filter_allowlist((FIPS_mode() ?
|
||||
+ KEX_FIPS_MAC : KEX_CLIENT_MAC), all_mac);
|
||||
+ def_kex = match_filter_allowlist((FIPS_mode() ?
|
||||
+ KEX_DEFAULT_KEX_FIPS : KEX_CLIENT_KEX), all_kex);
|
||||
+ def_key = match_filter_allowlist((FIPS_mode() ?
|
||||
+ KEX_FIPS_PK_ALG : KEX_DEFAULT_PK_ALG), all_key);
|
||||
+ def_sig = match_filter_allowlist((FIPS_mode() ?
|
||||
+ KEX_FIPS_PK_ALG : SSH_ALLOWED_CA_SIGALGS), all_sig);
|
||||
#define ASSEMBLE(what, defaults, all) \
|
||||
do { \
|
||||
if ((r = kex_assemble_names(&options->what, \
|
||||
diff -up openssh-8.0p1/sandbox-seccomp-filter.c.fips openssh-8.0p1/sandbox-seccomp-filter.c
|
||||
--- openssh-8.0p1/sandbox-seccomp-filter.c.fips 2019-07-23 14:55:45.373526117 +0200
|
||||
+++ openssh-8.0p1/sandbox-seccomp-filter.c 2019-07-23 14:55:45.402526411 +0200
|
||||
@@ -137,6 +137,9 @@ static const struct sock_filter preauth_
|
||||
#ifdef __NR_open
|
||||
SC_DENY(__NR_open, EACCES),
|
||||
#endif
|
||||
+#ifdef __NR_socket
|
||||
+ SC_DENY(__NR_socket, EACCES),
|
||||
+#endif
|
||||
#ifdef __NR_openat
|
||||
SC_DENY(__NR_openat, EACCES),
|
||||
#endif
|
||||
diff -up openssh-8.0p1/servconf.c.fips openssh-8.0p1/servconf.c
|
||||
--- openssh-8.0p1/servconf.c.fips 2019-07-23 14:55:45.361525996 +0200
|
||||
+++ openssh-8.0p1/servconf.c 2019-07-23 14:55:45.403526421 +0200
|
||||
@@ -208,11 +208,16 @@ assemble_algorithms(ServerOptions *o)
|
||||
all_key = sshkey_alg_list(0, 0, 1, ',');
|
||||
all_sig = sshkey_alg_list(0, 1, 1, ',');
|
||||
/* remove unsupported algos from default lists */
|
||||
- def_cipher = match_filter_allowlist(KEX_SERVER_ENCRYPT, all_cipher);
|
||||
- def_mac = match_filter_allowlist(KEX_SERVER_MAC, all_mac);
|
||||
- def_kex = match_filter_allowlist(KEX_SERVER_KEX, all_kex);
|
||||
- def_key = match_filter_allowlist(KEX_DEFAULT_PK_ALG, all_key);
|
||||
- def_sig = match_filter_allowlist(SSH_ALLOWED_CA_SIGALGS, all_sig);
|
||||
+ def_cipher = match_filter_allowlist((FIPS_mode() ?
|
||||
+ KEX_FIPS_ENCRYPT : KEX_SERVER_ENCRYPT), all_cipher);
|
||||
+ def_mac = match_filter_allowlist((FIPS_mode() ?
|
||||
+ KEX_FIPS_MAC : KEX_SERVER_MAC), all_mac);
|
||||
+ def_kex = match_filter_allowlist((FIPS_mode() ?
|
||||
+ KEX_DEFAULT_KEX_FIPS : KEX_SERVER_KEX), all_kex);
|
||||
+ def_key = match_filter_allowlist((FIPS_mode() ?
|
||||
+ KEX_FIPS_PK_ALG : KEX_DEFAULT_PK_ALG), all_key);
|
||||
+ def_sig = match_filter_allowlist((FIPS_mode() ?
|
||||
+ KEX_FIPS_PK_ALG : SSH_ALLOWED_CA_SIGALGS), all_sig);
|
||||
#define ASSEMBLE(what, defaults, all) \
|
||||
do { \
|
||||
if ((r = kex_assemble_names(&o->what, defaults, all)) != 0) \
|
||||
diff -up openssh-8.0p1/ssh.c.fips openssh-8.0p1/ssh.c
|
||||
--- openssh-8.0p1/ssh.c.fips 2019-07-23 14:55:45.378526168 +0200
|
||||
+++ openssh-8.0p1/ssh.c 2019-07-23 14:55:45.403526421 +0200
|
||||
@@ -76,6 +76,7 @@
|
||||
#include <openssl/evp.h>
|
||||
#include <openssl/err.h>
|
||||
#endif
|
||||
+#include <openssl/crypto.h>
|
||||
#include "openbsd-compat/openssl-compat.h"
|
||||
#include "openbsd-compat/sys-queue.h"
|
||||
|
||||
@@ -614,6 +626,10 @@ main(int ac, char **av)
|
||||
dump_client_config(&options, host);
|
||||
exit(0);
|
||||
}
|
||||
+
|
||||
+ if (FIPS_mode()) {
|
||||
+ debug("FIPS mode initialized");
|
||||
+ }
|
||||
|
||||
/* Expand SecurityKeyProvider if it refers to an environment variable */
|
||||
if (options.sk_provider != NULL && *options.sk_provider == '$' &&
|
||||
diff -up openssh-8.0p1/sshconnect2.c.fips openssh-8.0p1/sshconnect2.c
|
||||
--- openssh-8.0p1/sshconnect2.c.fips 2019-07-23 14:55:45.336525743 +0200
|
||||
+++ openssh-8.0p1/sshconnect2.c 2019-07-23 14:55:45.403526421 +0200
|
||||
@@ -44,6 +44,8 @@
|
||||
#include <vis.h>
|
||||
#endif
|
||||
|
||||
+#include <openssl/crypto.h>
|
||||
+
|
||||
#include "openbsd-compat/sys-queue.h"
|
||||
|
||||
#include "xmalloc.h"
|
||||
@@ -198,36 +203,41 @@ ssh_kex2(struct ssh *ssh, char *host, st
|
||||
|
||||
#if defined(GSSAPI) && defined(WITH_OPENSSL)
|
||||
if (options.gss_keyex) {
|
||||
- /* Add the GSSAPI mechanisms currently supported on this
|
||||
- * client to the key exchange algorithm proposal */
|
||||
- orig = myproposal[PROPOSAL_KEX_ALGS];
|
||||
-
|
||||
- if (options.gss_server_identity) {
|
||||
- gss_host = xstrdup(options.gss_server_identity);
|
||||
- } else if (options.gss_trust_dns) {
|
||||
- gss_host = remote_hostname(ssh);
|
||||
- /* Fall back to specified host if we are using proxy command
|
||||
- * and can not use DNS on that socket */
|
||||
- if (strcmp(gss_host, "UNKNOWN") == 0) {
|
||||
- free(gss_host);
|
||||
- gss_host = xstrdup(host);
|
||||
- }
|
||||
- } else {
|
||||
- gss_host = xstrdup(host);
|
||||
- }
|
||||
-
|
||||
- gss = ssh_gssapi_client_mechanisms(gss_host,
|
||||
- options.gss_client_identity, options.gss_kex_algorithms);
|
||||
- if (gss) {
|
||||
- debug("Offering GSSAPI proposal: %s", gss);
|
||||
- xasprintf(&myproposal[PROPOSAL_KEX_ALGS],
|
||||
- "%s,%s", gss, orig);
|
||||
-
|
||||
- /* If we've got GSSAPI algorithms, then we also support the
|
||||
- * 'null' hostkey, as a last resort */
|
||||
- orig = myproposal[PROPOSAL_SERVER_HOST_KEY_ALGS];
|
||||
- xasprintf(&myproposal[PROPOSAL_SERVER_HOST_KEY_ALGS],
|
||||
- "%s,null", orig);
|
||||
+ if (FIPS_mode()) {
|
||||
+ logit("Disabling GSSAPIKeyExchange. Not usable in FIPS mode");
|
||||
+ options.gss_keyex = 0;
|
||||
+ } else {
|
||||
+ /* Add the GSSAPI mechanisms currently supported on this
|
||||
+ * client to the key exchange algorithm proposal */
|
||||
+ orig = myproposal[PROPOSAL_KEX_ALGS];
|
||||
+
|
||||
+ if (options.gss_server_identity) {
|
||||
+ gss_host = xstrdup(options.gss_server_identity);
|
||||
+ } else if (options.gss_trust_dns) {
|
||||
+ gss_host = remote_hostname(ssh);
|
||||
+ /* Fall back to specified host if we are using proxy command
|
||||
+ * and can not use DNS on that socket */
|
||||
+ if (strcmp(gss_host, "UNKNOWN") == 0) {
|
||||
+ free(gss_host);
|
||||
+ gss_host = xstrdup(host);
|
||||
+ }
|
||||
+ } else {
|
||||
+ gss_host = xstrdup(host);
|
||||
+ }
|
||||
+
|
||||
+ gss = ssh_gssapi_client_mechanisms(gss_host,
|
||||
+ options.gss_client_identity, options.gss_kex_algorithms);
|
||||
+ if (gss) {
|
||||
+ debug("Offering GSSAPI proposal: %s", gss);
|
||||
+ xasprintf(&myproposal[PROPOSAL_KEX_ALGS],
|
||||
+ "%s,%s", gss, orig);
|
||||
+
|
||||
+ /* If we've got GSSAPI algorithms, then we also support the
|
||||
+ * 'null' hostkey, as a last resort */
|
||||
+ orig = myproposal[PROPOSAL_SERVER_HOST_KEY_ALGS];
|
||||
+ xasprintf(&myproposal[PROPOSAL_SERVER_HOST_KEY_ALGS],
|
||||
+ "%s,null", orig);
|
||||
+ }
|
||||
}
|
||||
}
|
||||
#endif
|
||||
diff -up openssh-8.0p1/sshd.c.fips openssh-8.0p1/sshd.c
|
||||
--- openssh-8.0p1/sshd.c.fips 2019-07-23 14:55:45.398526371 +0200
|
||||
+++ openssh-8.0p1/sshd.c 2019-07-23 14:55:45.403526421 +0200
|
||||
@@ -66,6 +66,7 @@
|
||||
#include <grp.h>
|
||||
#include <pwd.h>
|
||||
#include <signal.h>
|
||||
+#include <syslog.h>
|
||||
#include <stdarg.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
@@ -77,6 +78,7 @@
|
||||
#include <openssl/dh.h>
|
||||
#include <openssl/bn.h>
|
||||
#include <openssl/rand.h>
|
||||
+#include <openssl/crypto.h>
|
||||
#include "openbsd-compat/openssl-compat.h"
|
||||
#endif
|
||||
|
||||
@@ -1529,6 +1532,7 @@ main(int ac, char **av)
|
||||
#endif
|
||||
__progname = ssh_get_progname(av[0]);
|
||||
|
||||
+ OpenSSL_add_all_algorithms();
|
||||
/* Save argv. Duplicate so setproctitle emulation doesn't clobber it */
|
||||
saved_argc = ac;
|
||||
rexec_argc = ac;
|
||||
@@ -1992,6 +2007,10 @@ main(int ac, char **av)
|
||||
/* Reinitialize the log (because of the fork above). */
|
||||
log_init(__progname, options.log_level, options.log_facility, log_stderr);
|
||||
|
||||
+ if (FIPS_mode()) {
|
||||
+ debug("FIPS mode initialized");
|
||||
+ }
|
||||
+
|
||||
/* Chdir to the root directory so that the current disk can be
|
||||
unmounted if desired. */
|
||||
if (chdir("/") == -1)
|
||||
@@ -2382,10 +2401,14 @@ do_ssh2_kex(struct ssh *ssh)
|
||||
if (strlen(myproposal[PROPOSAL_SERVER_HOST_KEY_ALGS]) == 0)
|
||||
orig = NULL;
|
||||
|
||||
- if (options.gss_keyex)
|
||||
- gss = ssh_gssapi_server_mechanisms();
|
||||
- else
|
||||
- gss = NULL;
|
||||
+ if (options.gss_keyex) {
|
||||
+ if (FIPS_mode()) {
|
||||
+ logit("Disabling GSSAPIKeyExchange. Not usable in FIPS mode");
|
||||
+ options.gss_keyex = 0;
|
||||
+ } else {
|
||||
+ gss = ssh_gssapi_server_mechanisms();
|
||||
+ }
|
||||
+ }
|
||||
|
||||
if (gss && orig)
|
||||
xasprintf(&newstr, "%s,%s", gss, orig);
|
||||
diff -up openssh-8.0p1/sshkey.c.fips openssh-8.0p1/sshkey.c
|
||||
--- openssh-8.0p1/sshkey.c.fips 2019-07-23 14:55:45.398526371 +0200
|
||||
+++ openssh-8.0p1/sshkey.c 2019-07-23 14:55:45.404526431 +0200
|
||||
@@ -34,6 +34,7 @@
|
||||
#include <openssl/evp.h>
|
||||
#include <openssl/err.h>
|
||||
#include <openssl/pem.h>
|
||||
+#include <openssl/crypto.h>
|
||||
#endif
|
||||
|
||||
#include "crypto_api.h"
|
||||
@@ -57,6 +58,7 @@
|
||||
#define SSHKEY_INTERNAL
|
||||
#include "sshkey.h"
|
||||
#include "match.h"
|
||||
+#include "log.h"
|
||||
#include "ssh-sk.h"
|
||||
|
||||
#ifdef WITH_XMSS
|
||||
@@ -1591,6 +1593,8 @@ rsa_generate_private_key(u_int bits, RSA
|
||||
}
|
||||
if (!BN_set_word(f4, RSA_F4) ||
|
||||
!RSA_generate_key_ex(private, bits, f4, NULL)) {
|
||||
+ if (FIPS_mode())
|
||||
+ logit("%s: the key length might be unsupported by FIPS mode approved key generation method", __func__);
|
||||
ret = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
goto out;
|
||||
}
|
||||
diff -up openssh-8.0p1/ssh-keygen.c.fips openssh-8.0p1/ssh-keygen.c
|
||||
--- openssh-8.0p1/ssh-keygen.c.fips 2019-07-23 14:55:45.391526300 +0200
|
||||
+++ openssh-8.0p1/ssh-keygen.c 2019-07-23 14:57:54.118830056 +0200
|
||||
@@ -199,6 +199,12 @@ type_bits_valid(int type, const char *na
|
||||
#endif
|
||||
}
|
||||
#ifdef WITH_OPENSSL
|
||||
+ if (FIPS_mode()) {
|
||||
+ if (type == KEY_DSA)
|
||||
+ fatal("DSA keys are not allowed in FIPS mode");
|
||||
+ if (type == KEY_ED25519)
|
||||
+ fatal("ED25519 keys are not allowed in FIPS mode");
|
||||
+ }
|
||||
switch (type) {
|
||||
case KEY_DSA:
|
||||
if (*bitsp != 1024)
|
||||
@@ -1029,9 +1035,17 @@ do_gen_all_hostkeys(struct passwd *pw)
|
||||
first = 1;
|
||||
printf("%s: generating new host keys: ", __progname);
|
||||
}
|
||||
+ type = sshkey_type_from_name(key_types[i].key_type);
|
||||
+
|
||||
+ /* Skip the keys that are not supported in FIPS mode */
|
||||
+ if (FIPS_mode() && (type == KEY_DSA || type == KEY_ED25519)) {
|
||||
+ logit("Skipping %s key in FIPS mode",
|
||||
+ key_types[i].key_type_display);
|
||||
+ goto next;
|
||||
+ }
|
||||
+
|
||||
printf("%s ", key_types[i].key_type_display);
|
||||
fflush(stdout);
|
||||
- type = sshkey_type_from_name(key_types[i].key_type);
|
||||
if ((fd = mkstemp(prv_tmp)) == -1) {
|
||||
error("Could not save your private key in %s: %s",
|
||||
prv_tmp, strerror(errno));
|
@ -1,647 +0,0 @@
|
||||
diff --git a/auth-krb5.c b/auth-krb5.c
|
||||
index a5a81ed2..63f877f2 100644
|
||||
--- a/auth-krb5.c
|
||||
+++ b/auth-krb5.c
|
||||
@@ -51,6 +51,7 @@
|
||||
#include <unistd.h>
|
||||
#include <string.h>
|
||||
#include <krb5.h>
|
||||
+#include <profile.h>
|
||||
|
||||
extern ServerOptions options;
|
||||
|
||||
@@ -77,7 +78,7 @@ auth_krb5_password(Authctxt *authctxt, const char *password)
|
||||
#endif
|
||||
krb5_error_code problem;
|
||||
krb5_ccache ccache = NULL;
|
||||
- int len;
|
||||
+ char *ticket_name = NULL;
|
||||
char *client, *platform_client;
|
||||
const char *errmsg;
|
||||
|
||||
@@ -163,7 +164,8 @@ auth_krb5_password(Authctxt *authctxt, const char *password)
|
||||
goto out;
|
||||
}
|
||||
|
||||
- problem = ssh_krb5_cc_gen(authctxt->krb5_ctx, &authctxt->krb5_fwd_ccache);
|
||||
+ problem = ssh_krb5_cc_new_unique(authctxt->krb5_ctx,
|
||||
+ &authctxt->krb5_fwd_ccache, &authctxt->krb5_set_env);
|
||||
if (problem)
|
||||
goto out;
|
||||
|
||||
@@ -172,21 +174,20 @@ auth_krb5_password(Authctxt *authctxt, const char *password)
|
||||
if (problem)
|
||||
goto out;
|
||||
|
||||
- problem= krb5_cc_store_cred(authctxt->krb5_ctx, authctxt->krb5_fwd_ccache,
|
||||
+ problem = krb5_cc_store_cred(authctxt->krb5_ctx, authctxt->krb5_fwd_ccache,
|
||||
&creds);
|
||||
if (problem)
|
||||
goto out;
|
||||
#endif
|
||||
|
||||
- authctxt->krb5_ticket_file = (char *)krb5_cc_get_name(authctxt->krb5_ctx, authctxt->krb5_fwd_ccache);
|
||||
+ problem = krb5_cc_get_full_name(authctxt->krb5_ctx,
|
||||
+ authctxt->krb5_fwd_ccache, &ticket_name);
|
||||
|
||||
- len = strlen(authctxt->krb5_ticket_file) + 6;
|
||||
- authctxt->krb5_ccname = xmalloc(len);
|
||||
- snprintf(authctxt->krb5_ccname, len, "FILE:%s",
|
||||
- authctxt->krb5_ticket_file);
|
||||
+ authctxt->krb5_ccname = xstrdup(ticket_name);
|
||||
+ krb5_free_string(authctxt->krb5_ctx, ticket_name);
|
||||
|
||||
#ifdef USE_PAM
|
||||
- if (options.use_pam)
|
||||
+ if (options.use_pam && authctxt->krb5_set_env)
|
||||
do_pam_putenv("KRB5CCNAME", authctxt->krb5_ccname);
|
||||
#endif
|
||||
|
||||
@@ -222,11 +223,54 @@ auth_krb5_password(Authctxt *authctxt, const char *password)
|
||||
void
|
||||
krb5_cleanup_proc(Authctxt *authctxt)
|
||||
{
|
||||
+ struct stat krb5_ccname_stat;
|
||||
+ char krb5_ccname[128], *krb5_ccname_dir_start, *krb5_ccname_dir_end;
|
||||
+
|
||||
debug("krb5_cleanup_proc called");
|
||||
if (authctxt->krb5_fwd_ccache) {
|
||||
- krb5_cc_destroy(authctxt->krb5_ctx, authctxt->krb5_fwd_ccache);
|
||||
+ krb5_context ctx = authctxt->krb5_ctx;
|
||||
+ krb5_cccol_cursor cursor;
|
||||
+ krb5_ccache ccache;
|
||||
+ int ret;
|
||||
+
|
||||
+ krb5_cc_destroy(ctx, authctxt->krb5_fwd_ccache);
|
||||
authctxt->krb5_fwd_ccache = NULL;
|
||||
+
|
||||
+ ret = krb5_cccol_cursor_new(ctx, &cursor);
|
||||
+ if (ret)
|
||||
+ goto out;
|
||||
+
|
||||
+ ret = krb5_cccol_cursor_next(ctx, cursor, &ccache);
|
||||
+ if (ret == 0 && ccache != NULL) {
|
||||
+ /* There is at least one other ccache in collection
|
||||
+ * we can switch to */
|
||||
+ krb5_cc_switch(ctx, ccache);
|
||||
+ } else if (authctxt->krb5_ccname != NULL) {
|
||||
+ /* Clean up the collection too */
|
||||
+ strncpy(krb5_ccname, authctxt->krb5_ccname, sizeof(krb5_ccname) - 10);
|
||||
+ krb5_ccname_dir_start = strchr(krb5_ccname, ':') + 1;
|
||||
+ *krb5_ccname_dir_start++ = '\0';
|
||||
+ if (strcmp(krb5_ccname, "DIR") == 0) {
|
||||
+
|
||||
+ strcat(krb5_ccname_dir_start, "/primary");
|
||||
+
|
||||
+ if (stat(krb5_ccname_dir_start, &krb5_ccname_stat) == 0) {
|
||||
+ if (unlink(krb5_ccname_dir_start) == 0) {
|
||||
+ krb5_ccname_dir_end = strrchr(krb5_ccname_dir_start, '/');
|
||||
+ *krb5_ccname_dir_end = '\0';
|
||||
+ if (rmdir(krb5_ccname_dir_start) == -1)
|
||||
+ debug("cache dir '%s' remove failed: %s",
|
||||
+ krb5_ccname_dir_start, strerror(errno));
|
||||
+ }
|
||||
+ else
|
||||
+ debug("cache primary file '%s', remove failed: %s",
|
||||
+ krb5_ccname_dir_start, strerror(errno));
|
||||
+ }
|
||||
+ }
|
||||
+ }
|
||||
+ krb5_cccol_cursor_free(ctx, &cursor);
|
||||
}
|
||||
+out:
|
||||
if (authctxt->krb5_user) {
|
||||
krb5_free_principal(authctxt->krb5_ctx, authctxt->krb5_user);
|
||||
authctxt->krb5_user = NULL;
|
||||
@@ -237,36 +281,188 @@ krb5_cleanup_proc(Authctxt *authctxt)
|
||||
}
|
||||
}
|
||||
|
||||
-#ifndef HEIMDAL
|
||||
+
|
||||
+#if !defined(HEIMDAL)
|
||||
+int
|
||||
+ssh_asprintf_append(char **dsc, const char *fmt, ...) {
|
||||
+ char *src, *old;
|
||||
+ va_list ap;
|
||||
+ int i;
|
||||
+
|
||||
+ va_start(ap, fmt);
|
||||
+ i = vasprintf(&src, fmt, ap);
|
||||
+ va_end(ap);
|
||||
+
|
||||
+ if (i == -1 || src == NULL)
|
||||
+ return -1;
|
||||
+
|
||||
+ old = *dsc;
|
||||
+
|
||||
+ i = asprintf(dsc, "%s%s", *dsc, src);
|
||||
+ if (i == -1 || src == NULL) {
|
||||
+ free(src);
|
||||
+ return -1;
|
||||
+ }
|
||||
+
|
||||
+ free(old);
|
||||
+ free(src);
|
||||
+
|
||||
+ return i;
|
||||
+}
|
||||
+
|
||||
+int
|
||||
+ssh_krb5_expand_template(char **result, const char *template) {
|
||||
+ char *p_n, *p_o, *r, *tmp_template;
|
||||
+
|
||||
+ debug3("%s: called, template = %s", __func__, template);
|
||||
+ if (template == NULL)
|
||||
+ return -1;
|
||||
+
|
||||
+ tmp_template = p_n = p_o = xstrdup(template);
|
||||
+ r = xstrdup("");
|
||||
+
|
||||
+ while ((p_n = strstr(p_o, "%{")) != NULL) {
|
||||
+
|
||||
+ *p_n++ = '\0';
|
||||
+ if (ssh_asprintf_append(&r, "%s", p_o) == -1)
|
||||
+ goto cleanup;
|
||||
+
|
||||
+ if (strncmp(p_n, "{uid}", 5) == 0 || strncmp(p_n, "{euid}", 6) == 0 ||
|
||||
+ strncmp(p_n, "{USERID}", 8) == 0) {
|
||||
+ p_o = strchr(p_n, '}') + 1;
|
||||
+ if (ssh_asprintf_append(&r, "%d", geteuid()) == -1)
|
||||
+ goto cleanup;
|
||||
+ continue;
|
||||
+ }
|
||||
+ else if (strncmp(p_n, "{TEMP}", 6) == 0) {
|
||||
+ p_o = strchr(p_n, '}') + 1;
|
||||
+ if (ssh_asprintf_append(&r, "/tmp") == -1)
|
||||
+ goto cleanup;
|
||||
+ continue;
|
||||
+ } else {
|
||||
+ p_o = strchr(p_n, '}') + 1;
|
||||
+ *p_o = '\0';
|
||||
+ debug("%s: unsupported token %s in %s", __func__, p_n, template);
|
||||
+ /* unknown token, fallback to the default */
|
||||
+ goto cleanup;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ if (ssh_asprintf_append(&r, "%s", p_o) == -1)
|
||||
+ goto cleanup;
|
||||
+
|
||||
+ *result = r;
|
||||
+ free(tmp_template);
|
||||
+ return 0;
|
||||
+
|
||||
+cleanup:
|
||||
+ free(r);
|
||||
+ free(tmp_template);
|
||||
+ return -1;
|
||||
+}
|
||||
+
|
||||
krb5_error_code
|
||||
-ssh_krb5_cc_gen(krb5_context ctx, krb5_ccache *ccache) {
|
||||
- int tmpfd, ret, oerrno;
|
||||
- char ccname[40];
|
||||
+ssh_krb5_get_cctemplate(krb5_context ctx, char **ccname) {
|
||||
+ profile_t p;
|
||||
+ int ret = 0;
|
||||
+ char *value = NULL;
|
||||
+
|
||||
+ debug3("%s: called", __func__);
|
||||
+ ret = krb5_get_profile(ctx, &p);
|
||||
+ if (ret)
|
||||
+ return ret;
|
||||
+
|
||||
+ ret = profile_get_string(p, "libdefaults", "default_ccache_name", NULL, NULL, &value);
|
||||
+ if (ret || !value)
|
||||
+ return ret;
|
||||
+
|
||||
+ ret = ssh_krb5_expand_template(ccname, value);
|
||||
+
|
||||
+ debug3("%s: returning with ccname = %s", __func__, *ccname);
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
+krb5_error_code
|
||||
+ssh_krb5_cc_new_unique(krb5_context ctx, krb5_ccache *ccache, int *need_environment) {
|
||||
+ int tmpfd, ret, oerrno, type_len;
|
||||
+ char *ccname = NULL;
|
||||
mode_t old_umask;
|
||||
+ char *type = NULL, *colon = NULL;
|
||||
|
||||
- ret = snprintf(ccname, sizeof(ccname),
|
||||
- "FILE:/tmp/krb5cc_%d_XXXXXXXXXX", geteuid());
|
||||
- if (ret < 0 || (size_t)ret >= sizeof(ccname))
|
||||
- return ENOMEM;
|
||||
-
|
||||
- old_umask = umask(0177);
|
||||
- tmpfd = mkstemp(ccname + strlen("FILE:"));
|
||||
- oerrno = errno;
|
||||
- umask(old_umask);
|
||||
- if (tmpfd == -1) {
|
||||
- logit("mkstemp(): %.100s", strerror(oerrno));
|
||||
- return oerrno;
|
||||
- }
|
||||
+ debug3("%s: called", __func__);
|
||||
+ if (need_environment)
|
||||
+ *need_environment = 0;
|
||||
+ ret = ssh_krb5_get_cctemplate(ctx, &ccname);
|
||||
+ if (ret || !ccname || options.kerberos_unique_ccache) {
|
||||
+ /* Otherwise, go with the old method */
|
||||
+ if (ccname)
|
||||
+ free(ccname);
|
||||
+ ccname = NULL;
|
||||
+
|
||||
+ ret = asprintf(&ccname,
|
||||
+ "FILE:/tmp/krb5cc_%d_XXXXXXXXXX", geteuid());
|
||||
+ if (ret < 0)
|
||||
+ return ENOMEM;
|
||||
|
||||
- if (fchmod(tmpfd,S_IRUSR | S_IWUSR) == -1) {
|
||||
+ old_umask = umask(0177);
|
||||
+ tmpfd = mkstemp(ccname + strlen("FILE:"));
|
||||
oerrno = errno;
|
||||
- logit("fchmod(): %.100s", strerror(oerrno));
|
||||
+ umask(old_umask);
|
||||
+ if (tmpfd == -1) {
|
||||
+ logit("mkstemp(): %.100s", strerror(oerrno));
|
||||
+ return oerrno;
|
||||
+ }
|
||||
+
|
||||
+ if (fchmod(tmpfd,S_IRUSR | S_IWUSR) == -1) {
|
||||
+ oerrno = errno;
|
||||
+ logit("fchmod(): %.100s", strerror(oerrno));
|
||||
+ close(tmpfd);
|
||||
+ return oerrno;
|
||||
+ }
|
||||
+ /* make sure the KRB5CCNAME is set for non-standard location */
|
||||
+ if (need_environment)
|
||||
+ *need_environment = 1;
|
||||
close(tmpfd);
|
||||
- return oerrno;
|
||||
}
|
||||
- close(tmpfd);
|
||||
|
||||
- return (krb5_cc_resolve(ctx, ccname, ccache));
|
||||
+ debug3("%s: setting default ccname to %s", __func__, ccname);
|
||||
+ /* set the default with already expanded user IDs */
|
||||
+ ret = krb5_cc_set_default_name(ctx, ccname);
|
||||
+ if (ret)
|
||||
+ return ret;
|
||||
+
|
||||
+ if ((colon = strstr(ccname, ":")) != NULL) {
|
||||
+ type_len = colon - ccname;
|
||||
+ type = malloc((type_len + 1) * sizeof(char));
|
||||
+ if (type == NULL)
|
||||
+ return ENOMEM;
|
||||
+ strncpy(type, ccname, type_len);
|
||||
+ type[type_len] = 0;
|
||||
+ } else {
|
||||
+ type = strdup(ccname);
|
||||
+ }
|
||||
+
|
||||
+ /* If we have a credential cache from krb5.conf, we need to switch
|
||||
+ * a primary cache for this collection, if it supports that (non-FILE)
|
||||
+ */
|
||||
+ if (krb5_cc_support_switch(ctx, type)) {
|
||||
+ debug3("%s: calling cc_new_unique(%s)", __func__, ccname);
|
||||
+ ret = krb5_cc_new_unique(ctx, type, NULL, ccache);
|
||||
+ free(type);
|
||||
+ if (ret)
|
||||
+ return ret;
|
||||
+
|
||||
+ debug3("%s: calling cc_switch()", __func__);
|
||||
+ return krb5_cc_switch(ctx, *ccache);
|
||||
+ } else {
|
||||
+ /* Otherwise, we can not create a unique ccname here (either
|
||||
+ * it is already unique from above or the type does not support
|
||||
+ * collections
|
||||
+ */
|
||||
+ free(type);
|
||||
+ debug3("%s: calling cc_resolve(%s)", __func__, ccname);
|
||||
+ return (krb5_cc_resolve(ctx, ccname, ccache));
|
||||
+ }
|
||||
}
|
||||
#endif /* !HEIMDAL */
|
||||
#endif /* KRB5 */
|
||||
diff --git a/auth.h b/auth.h
|
||||
index 29491df9..fdab5040 100644
|
||||
--- a/auth.h
|
||||
+++ b/auth.h
|
||||
@@ -82,6 +82,7 @@ struct Authctxt {
|
||||
krb5_principal krb5_user;
|
||||
char *krb5_ticket_file;
|
||||
char *krb5_ccname;
|
||||
+ int krb5_set_env;
|
||||
#endif
|
||||
struct sshbuf *loginmsg;
|
||||
|
||||
@@ -238,7 +239,7 @@ int sys_auth_passwd(struct ssh *, const char *);
|
||||
int sys_auth_passwd(struct ssh *, const char *);
|
||||
|
||||
#if defined(KRB5) && !defined(HEIMDAL)
|
||||
-krb5_error_code ssh_krb5_cc_gen(krb5_context, krb5_ccache *);
|
||||
+krb5_error_code ssh_krb5_cc_new_unique(krb5_context, krb5_ccache *, int *);
|
||||
#endif
|
||||
|
||||
#endif /* AUTH_H */
|
||||
diff -up openssh-7.9p1/gss-serv-krb5.c.ccache_name openssh-7.9p1/gss-serv-krb5.c
|
||||
--- openssh-7.9p1/gss-serv-krb5.c.ccache_name 2019-03-01 15:17:42.708611802 +0100
|
||||
+++ openssh-7.9p1/gss-serv-krb5.c 2019-03-01 15:17:42.713611844 +0100
|
||||
@@ -267,7 +267,7 @@ ssh_gssapi_krb5_cmdok(krb5_principal pri
|
||||
/* This writes out any forwarded credentials from the structure populated
|
||||
* during userauth. Called after we have setuid to the user */
|
||||
|
||||
-static void
|
||||
+static int
|
||||
ssh_gssapi_krb5_storecreds(ssh_gssapi_client *client)
|
||||
{
|
||||
krb5_ccache ccache;
|
||||
@@ -276,14 +276,15 @@ ssh_gssapi_krb5_storecreds(ssh_gssapi_cl
|
||||
OM_uint32 maj_status, min_status;
|
||||
const char *new_ccname, *new_cctype;
|
||||
const char *errmsg;
|
||||
+ int set_env = 0;
|
||||
|
||||
if (client->creds == NULL) {
|
||||
debug("No credentials stored");
|
||||
- return;
|
||||
+ return 0;
|
||||
}
|
||||
|
||||
if (ssh_gssapi_krb5_init() == 0)
|
||||
- return;
|
||||
+ return 0;
|
||||
|
||||
#ifdef HEIMDAL
|
||||
# ifdef HAVE_KRB5_CC_NEW_UNIQUE
|
||||
@@ -297,14 +298,14 @@ ssh_gssapi_krb5_storecreds(ssh_gssapi_cl
|
||||
krb5_get_err_text(krb_context, problem));
|
||||
# endif
|
||||
krb5_free_error_message(krb_context, errmsg);
|
||||
- return;
|
||||
+ return 0;
|
||||
}
|
||||
#else
|
||||
- if ((problem = ssh_krb5_cc_gen(krb_context, &ccache))) {
|
||||
+ if ((problem = ssh_krb5_cc_new_unique(krb_context, &ccache, &set_env)) != 0) {
|
||||
errmsg = krb5_get_error_message(krb_context, problem);
|
||||
- logit("ssh_krb5_cc_gen(): %.100s", errmsg);
|
||||
+ logit("ssh_krb5_cc_new_unique(): %.100s", errmsg);
|
||||
krb5_free_error_message(krb_context, errmsg);
|
||||
- return;
|
||||
+ return 0;
|
||||
}
|
||||
#endif /* #ifdef HEIMDAL */
|
||||
|
||||
@@ -313,7 +314,7 @@ ssh_gssapi_krb5_storecreds(ssh_gssapi_cl
|
||||
errmsg = krb5_get_error_message(krb_context, problem);
|
||||
logit("krb5_parse_name(): %.100s", errmsg);
|
||||
krb5_free_error_message(krb_context, errmsg);
|
||||
- return;
|
||||
+ return 0;
|
||||
}
|
||||
|
||||
if ((problem = krb5_cc_initialize(krb_context, ccache, princ))) {
|
||||
@@ -322,7 +323,7 @@ ssh_gssapi_krb5_storecreds(ssh_gssapi_cl
|
||||
krb5_free_error_message(krb_context, errmsg);
|
||||
krb5_free_principal(krb_context, princ);
|
||||
krb5_cc_destroy(krb_context, ccache);
|
||||
- return;
|
||||
+ return 0;
|
||||
}
|
||||
|
||||
krb5_free_principal(krb_context, princ);
|
||||
@@ -331,32 +332,21 @@ ssh_gssapi_krb5_storecreds(ssh_gssapi_cl
|
||||
client->creds, ccache))) {
|
||||
logit("gss_krb5_copy_ccache() failed");
|
||||
krb5_cc_destroy(krb_context, ccache);
|
||||
- return;
|
||||
+ return 0;
|
||||
}
|
||||
|
||||
new_cctype = krb5_cc_get_type(krb_context, ccache);
|
||||
new_ccname = krb5_cc_get_name(krb_context, ccache);
|
||||
-
|
||||
- client->store.envvar = "KRB5CCNAME";
|
||||
-#ifdef USE_CCAPI
|
||||
- xasprintf(&client->store.envval, "API:%s", new_ccname);
|
||||
- client->store.filename = NULL;
|
||||
-#else
|
||||
- if (new_ccname[0] == ':')
|
||||
- new_ccname++;
|
||||
xasprintf(&client->store.envval, "%s:%s", new_cctype, new_ccname);
|
||||
- if (strcmp(new_cctype, "DIR") == 0) {
|
||||
- char *p;
|
||||
- p = strrchr(client->store.envval, '/');
|
||||
- if (p)
|
||||
- *p = '\0';
|
||||
+
|
||||
+ if (set_env) {
|
||||
+ client->store.envvar = "KRB5CCNAME";
|
||||
}
|
||||
if ((strcmp(new_cctype, "FILE") == 0) || (strcmp(new_cctype, "DIR") == 0))
|
||||
client->store.filename = xstrdup(new_ccname);
|
||||
-#endif
|
||||
|
||||
#ifdef USE_PAM
|
||||
- if (options.use_pam)
|
||||
+ if (options.use_pam && set_env)
|
||||
do_pam_putenv(client->store.envvar, client->store.envval);
|
||||
#endif
|
||||
|
||||
@@ -361,7 +355,7 @@ ssh_gssapi_krb5_storecreds(ssh_gssapi_cl
|
||||
|
||||
client->store.data = krb_context;
|
||||
|
||||
- return;
|
||||
+ return set_env;
|
||||
}
|
||||
|
||||
int
|
||||
diff --git a/gss-serv.c b/gss-serv.c
|
||||
index 6cae720e..16e55cbc 100644
|
||||
--- a/gss-serv.c
|
||||
+++ b/gss-serv.c
|
||||
@@ -320,13 +320,15 @@ ssh_gssapi_getclient(Gssctxt *ctx, ssh_gssapi_client *client)
|
||||
}
|
||||
|
||||
/* As user */
|
||||
-void
|
||||
+int
|
||||
ssh_gssapi_storecreds(void)
|
||||
{
|
||||
if (gssapi_client.mech && gssapi_client.mech->storecreds) {
|
||||
- (*gssapi_client.mech->storecreds)(&gssapi_client);
|
||||
+ return (*gssapi_client.mech->storecreds)(&gssapi_client);
|
||||
} else
|
||||
debug("ssh_gssapi_storecreds: Not a GSSAPI mechanism");
|
||||
+
|
||||
+ return 0;
|
||||
}
|
||||
|
||||
/* This allows GSSAPI methods to do things to the child's environment based
|
||||
@@ -498,9 +500,7 @@ ssh_gssapi_rekey_creds() {
|
||||
char *envstr;
|
||||
#endif
|
||||
|
||||
- if (gssapi_client.store.filename == NULL &&
|
||||
- gssapi_client.store.envval == NULL &&
|
||||
- gssapi_client.store.envvar == NULL)
|
||||
+ if (gssapi_client.store.envval == NULL)
|
||||
return;
|
||||
|
||||
ok = PRIVSEP(ssh_gssapi_update_creds(&gssapi_client.store));
|
||||
diff -up openssh-7.9p1/servconf.c.ccache_name openssh-7.9p1/servconf.c
|
||||
--- openssh-7.9p1/servconf.c.ccache_name 2019-03-01 15:17:42.704611768 +0100
|
||||
+++ openssh-7.9p1/servconf.c 2019-03-01 15:17:42.713611844 +0100
|
||||
@@ -123,6 +123,7 @@ initialize_server_options(ServerOptions
|
||||
options->kerberos_or_local_passwd = -1;
|
||||
options->kerberos_ticket_cleanup = -1;
|
||||
options->kerberos_get_afs_token = -1;
|
||||
+ options->kerberos_unique_ccache = -1;
|
||||
options->gss_authentication=-1;
|
||||
options->gss_keyex = -1;
|
||||
options->gss_cleanup_creds = -1;
|
||||
@@ -315,6 +316,8 @@ fill_default_server_options(ServerOptions *options)
|
||||
options->kerberos_ticket_cleanup = 1;
|
||||
if (options->kerberos_get_afs_token == -1)
|
||||
options->kerberos_get_afs_token = 0;
|
||||
+ if (options->kerberos_unique_ccache == -1)
|
||||
+ options->kerberos_unique_ccache = 0;
|
||||
if (options->gss_authentication == -1)
|
||||
options->gss_authentication = 0;
|
||||
if (options->gss_keyex == -1)
|
||||
@@ -447,7 +450,8 @@ typedef enum {
|
||||
sPermitRootLogin, sLogFacility, sLogLevel,
|
||||
sRhostsRSAAuthentication, sRSAAuthentication,
|
||||
sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
|
||||
- sKerberosGetAFSToken, sChallengeResponseAuthentication,
|
||||
+ sKerberosGetAFSToken, sKerberosUniqueCCache,
|
||||
+ sChallengeResponseAuthentication,
|
||||
sPasswordAuthentication, sKbdInteractiveAuthentication,
|
||||
sListenAddress, sAddressFamily,
|
||||
sPrintMotd, sPrintLastLog, sIgnoreRhosts,
|
||||
@@ -526,11 +530,13 @@ static struct {
|
||||
#else
|
||||
{ "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL },
|
||||
#endif
|
||||
+ { "kerberosuniqueccache", sKerberosUniqueCCache, SSHCFG_GLOBAL },
|
||||
#else
|
||||
{ "kerberosauthentication", sUnsupported, SSHCFG_ALL },
|
||||
{ "kerberosorlocalpasswd", sUnsupported, SSHCFG_GLOBAL },
|
||||
{ "kerberosticketcleanup", sUnsupported, SSHCFG_GLOBAL },
|
||||
{ "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL },
|
||||
+ { "kerberosuniqueccache", sUnsupported, SSHCFG_GLOBAL },
|
||||
#endif
|
||||
{ "kerberostgtpassing", sUnsupported, SSHCFG_GLOBAL },
|
||||
{ "afstokenpassing", sUnsupported, SSHCFG_GLOBAL },
|
||||
@@ -1437,6 +1443,10 @@ process_server_config_line(ServerOptions *options, char *line,
|
||||
intptr = &options->kerberos_get_afs_token;
|
||||
goto parse_flag;
|
||||
|
||||
+ case sKerberosUniqueCCache:
|
||||
+ intptr = &options->kerberos_unique_ccache;
|
||||
+ goto parse_flag;
|
||||
+
|
||||
case sGssAuthentication:
|
||||
intptr = &options->gss_authentication;
|
||||
goto parse_flag;
|
||||
@@ -2507,6 +2517,7 @@ dump_config(ServerOptions *o)
|
||||
# ifdef USE_AFS
|
||||
dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
|
||||
# endif
|
||||
+ dump_cfg_fmtint(sKerberosUniqueCCache, o->kerberos_unique_ccache);
|
||||
#endif
|
||||
#ifdef GSSAPI
|
||||
dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
|
||||
diff --git a/servconf.h b/servconf.h
|
||||
index db8362c6..4fa42d64 100644
|
||||
--- a/servconf.h
|
||||
+++ b/servconf.h
|
||||
@@ -123,6 +123,8 @@ typedef struct {
|
||||
* file on logout. */
|
||||
int kerberos_get_afs_token; /* If true, try to get AFS token if
|
||||
* authenticated with Kerberos. */
|
||||
+ int kerberos_unique_ccache; /* If true, the acquired ticket will
|
||||
+ * be stored in per-session ccache */
|
||||
int gss_authentication; /* If true, permit GSSAPI authentication */
|
||||
int gss_keyex; /* If true, permit GSSAPI key exchange */
|
||||
int gss_cleanup_creds; /* If true, destroy cred cache on logout */
|
||||
diff --git a/session.c b/session.c
|
||||
index 85df6a27..480a5ead 100644
|
||||
--- a/session.c
|
||||
+++ b/session.c
|
||||
@@ -1033,7 +1033,8 @@ do_setup_env(struct ssh *ssh, Session *s, const char *shell)
|
||||
/* Allow any GSSAPI methods that we've used to alter
|
||||
* the child's environment as they see fit
|
||||
*/
|
||||
- ssh_gssapi_do_child(&env, &envsize);
|
||||
+ if (s->authctxt->krb5_set_env)
|
||||
+ ssh_gssapi_do_child(&env, &envsize);
|
||||
#endif
|
||||
|
||||
/* Set basic environment. */
|
||||
@@ -1105,7 +1106,7 @@ do_setup_env(struct ssh *ssh, Session *s, const char *shell)
|
||||
}
|
||||
#endif
|
||||
#ifdef KRB5
|
||||
- if (s->authctxt->krb5_ccname)
|
||||
+ if (s->authctxt->krb5_ccname && s->authctxt->krb5_set_env)
|
||||
child_set_env(&env, &envsize, "KRB5CCNAME",
|
||||
s->authctxt->krb5_ccname);
|
||||
#endif
|
||||
diff --git a/ssh-gss.h b/ssh-gss.h
|
||||
index 6593e422..245178af 100644
|
||||
--- a/ssh-gss.h
|
||||
+++ b/ssh-gss.h
|
||||
@@ -83,7 +82,7 @@ typedef struct ssh_gssapi_mech_struct {
|
||||
int (*dochild) (ssh_gssapi_client *);
|
||||
int (*userok) (ssh_gssapi_client *, char *);
|
||||
int (*localname) (ssh_gssapi_client *, char **);
|
||||
- void (*storecreds) (ssh_gssapi_client *);
|
||||
+ int (*storecreds) (ssh_gssapi_client *);
|
||||
int (*updatecreds) (ssh_gssapi_ccache *, ssh_gssapi_client *);
|
||||
} ssh_gssapi_mech;
|
||||
|
||||
@@ -127,7 +126,7 @@ int ssh_gssapi_userok(char *name);
|
||||
OM_uint32 ssh_gssapi_checkmic(Gssctxt *, gss_buffer_t, gss_buffer_t);
|
||||
void ssh_gssapi_do_child(char ***, u_int *);
|
||||
void ssh_gssapi_cleanup_creds(void);
|
||||
-void ssh_gssapi_storecreds(void);
|
||||
+int ssh_gssapi_storecreds(void);
|
||||
const char *ssh_gssapi_displayname(void);
|
||||
|
||||
char *ssh_gssapi_server_mechanisms(void);
|
||||
diff --git a/sshd.c b/sshd.c
|
||||
index edbe815c..89514e8a 100644
|
||||
--- a/sshd.c
|
||||
+++ b/sshd.c
|
||||
@@ -2162,7 +2162,7 @@ main(int ac, char **av)
|
||||
#ifdef GSSAPI
|
||||
if (options.gss_authentication) {
|
||||
temporarily_use_uid(authctxt->pw);
|
||||
- ssh_gssapi_storecreds();
|
||||
+ authctxt->krb5_set_env = ssh_gssapi_storecreds();
|
||||
restore_uid();
|
||||
}
|
||||
#endif
|
||||
diff --git a/sshd_config.5 b/sshd_config.5
|
||||
index c0683d4a..2349f477 100644
|
||||
--- a/sshd_config.5
|
||||
+++ b/sshd_config.5
|
||||
@@ -860,6 +860,14 @@ Specifies whether to automatically destroy the user's ticket cache
|
||||
file on logout.
|
||||
The default is
|
||||
.Cm yes .
|
||||
+.It Cm KerberosUniqueCCache
|
||||
+Specifies whether to store the acquired tickets in the per-session credential
|
||||
+cache under /tmp/ or whether to use per-user credential cache as configured in
|
||||
+.Pa /etc/krb5.conf .
|
||||
+The default value
|
||||
+.Cm no
|
||||
+can lead to overwriting previous tickets by subseqent connections to the same
|
||||
+user account.
|
||||
.It Cm KexAlgorithms
|
||||
Specifies the available KEX (Key Exchange) algorithms.
|
||||
Multiple algorithms must be comma-separated.
|
@ -1,117 +0,0 @@
|
||||
diff -up openssh/ssh_config.redhat openssh/ssh_config
|
||||
--- openssh/ssh_config.redhat 2020-02-11 23:28:35.000000000 +0100
|
||||
+++ openssh/ssh_config 2020-02-13 18:13:39.180641839 +0100
|
||||
@@ -43,3 +43,10 @@
|
||||
# ProxyCommand ssh -q -W %h:%p gateway.example.com
|
||||
# RekeyLimit 1G 1h
|
||||
# UserKnownHostsFile ~/.ssh/known_hosts.d/%k
|
||||
+#
|
||||
+# This system is following system-wide crypto policy.
|
||||
+# To modify the crypto properties (Ciphers, MACs, ...), create a *.conf
|
||||
+# file under /etc/ssh/ssh_config.d/ which will be automatically
|
||||
+# included below. For more information, see manual page for
|
||||
+# update-crypto-policies(8) and ssh_config(5).
|
||||
+Include /etc/ssh/ssh_config.d/*.conf
|
||||
diff -up openssh/ssh_config_redhat.redhat openssh/ssh_config_redhat
|
||||
--- openssh/ssh_config_redhat.redhat 2020-02-13 18:13:39.180641839 +0100
|
||||
+++ openssh/ssh_config_redhat 2020-02-13 18:13:39.180641839 +0100
|
||||
@@ -0,0 +1,21 @@
|
||||
+# The options here are in the "Match final block" to be applied as the last
|
||||
+# options and could be potentially overwritten by the user configuration
|
||||
+Match final all
|
||||
+ # Follow system-wide Crypto Policy, if defined:
|
||||
+ Include /etc/crypto-policies/back-ends/openssh.config
|
||||
+
|
||||
+ GSSAPIAuthentication yes
|
||||
+
|
||||
+# If this option is set to yes then remote X11 clients will have full access
|
||||
+# to the original X11 display. As virtually no X11 client supports the untrusted
|
||||
+# mode correctly we set this to yes.
|
||||
+ ForwardX11Trusted yes
|
||||
+
|
||||
+# Send locale-related environment variables
|
||||
+ SendEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES
|
||||
+ SendEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
|
||||
+ SendEnv LC_IDENTIFICATION LC_ALL LANGUAGE
|
||||
+ SendEnv XMODIFIERS
|
||||
+
|
||||
+# Uncomment this if you want to use .local domain
|
||||
+# Host *.local
|
||||
diff -up openssh/sshd_config.0.redhat openssh/sshd_config.0
|
||||
--- openssh/sshd_config.0.redhat 2020-02-12 14:30:04.000000000 +0100
|
||||
+++ openssh/sshd_config.0 2020-02-13 18:13:39.181641855 +0100
|
||||
@@ -970,9 +970,9 @@ DESCRIPTION
|
||||
|
||||
SyslogFacility
|
||||
Gives the facility code that is used when logging messages from
|
||||
- sshd(8). The possible values are: DAEMON, USER, AUTH, LOCAL0,
|
||||
- LOCAL1, LOCAL2, LOCAL3, LOCAL4, LOCAL5, LOCAL6, LOCAL7. The
|
||||
- default is AUTH.
|
||||
+ sshd(8). The possible values are: DAEMON, USER, AUTH, AUTHPRIV,
|
||||
+ LOCAL0, LOCAL1, LOCAL2, LOCAL3, LOCAL4, LOCAL5, LOCAL6, LOCAL7.
|
||||
+ The default is AUTH.
|
||||
|
||||
TCPKeepAlive
|
||||
Specifies whether the system should send TCP keepalive messages
|
||||
diff -up openssh/sshd_config.5.redhat openssh/sshd_config.5
|
||||
--- openssh/sshd_config.5.redhat 2020-02-11 23:28:35.000000000 +0100
|
||||
+++ openssh/sshd_config.5 2020-02-13 18:13:39.181641855 +0100
|
||||
@@ -1614,7 +1614,7 @@ By default no subsystems are defined.
|
||||
.It Cm SyslogFacility
|
||||
Gives the facility code that is used when logging messages from
|
||||
.Xr sshd 8 .
|
||||
-The possible values are: DAEMON, USER, AUTH, LOCAL0, LOCAL1, LOCAL2,
|
||||
+The possible values are: DAEMON, USER, AUTH, AUTHPRIV, LOCAL0, LOCAL1, LOCAL2,
|
||||
LOCAL3, LOCAL4, LOCAL5, LOCAL6, LOCAL7.
|
||||
The default is AUTH.
|
||||
.It Cm TCPKeepAlive
|
||||
diff -up openssh/sshd_config.redhat openssh/sshd_config
|
||||
--- openssh/sshd_config.redhat 2020-02-11 23:28:35.000000000 +0100
|
||||
+++ openssh/sshd_config 2020-02-13 18:20:16.349913681 +0100
|
||||
@@ -10,6 +10,14 @@
|
||||
# possible, but leave them commented. Uncommented options override the
|
||||
# default value.
|
||||
|
||||
+# To modify the system-wide sshd configuration, create a *.conf file under
|
||||
+# /etc/ssh/sshd_config.d/ which will be automatically included below
|
||||
+Include /etc/ssh/sshd_config.d/*.conf
|
||||
+
|
||||
+# If you want to change the port on a SELinux system, you have to tell
|
||||
+# SELinux about this change.
|
||||
+# semanage port -a -t ssh_port_t -p tcp #PORTNUMBER
|
||||
+#
|
||||
#Port 22
|
||||
#AddressFamily any
|
||||
#ListenAddress 0.0.0.0
|
||||
diff -up openssh/sshd_config_redhat.redhat openssh/sshd_config_redhat
|
||||
--- openssh/sshd_config_redhat.redhat 2020-02-13 18:14:02.268006439 +0100
|
||||
+++ openssh/sshd_config_redhat 2020-02-13 18:19:20.765035947 +0100
|
||||
@@ -0,0 +1,28 @@
|
||||
+# This system is following system-wide crypto policy. The changes to
|
||||
+# crypto properties (Ciphers, MACs, ...) will not have any effect in
|
||||
+# this or following included files. To override some configuration option,
|
||||
+# write it before this block or include it before this file.
|
||||
+# Please, see manual pages for update-crypto-policies(8) and sshd_config(5).
|
||||
+Include /etc/crypto-policies/back-ends/opensshserver.config
|
||||
+
|
||||
+SyslogFacility AUTHPRIV
|
||||
+
|
||||
+ChallengeResponseAuthentication no
|
||||
+
|
||||
+GSSAPIAuthentication yes
|
||||
+GSSAPICleanupCredentials no
|
||||
+
|
||||
+UsePAM yes
|
||||
+
|
||||
+X11Forwarding yes
|
||||
+
|
||||
+# It is recommended to use pam_motd in /etc/pam.d/sshd instead of PrintMotd,
|
||||
+# as it is more configurable and versatile than the built-in version.
|
||||
+PrintMotd no
|
||||
+
|
||||
+# Accept locale-related environment variables
|
||||
+AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES
|
||||
+AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
|
||||
+AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE
|
||||
+AcceptEnv XMODIFIERS
|
||||
+
|
@ -1,26 +0,0 @@
|
||||
diff --git a/sshd.c b/sshd.c
|
||||
--- a/sshd.c
|
||||
+++ b/sshd.c
|
||||
@@ -1701,6 +1701,10 @@ main(int ac, char **av)
|
||||
parse_server_config(&options, rexeced_flag ? "rexec" : config_file_name,
|
||||
cfg, &includes, NULL);
|
||||
|
||||
+ /* 'UsePAM no' is not supported in Fedora */
|
||||
+ if (! options.use_pam)
|
||||
+ logit("WARNING: 'UsePAM no' is not supported in Fedora and may cause several problems.");
|
||||
+
|
||||
/* Fill in default values for those options not explicitly set. */
|
||||
fill_default_server_options(&options);
|
||||
|
||||
diff --git a/sshd_config b/sshd_config
|
||||
--- a/sshd_config
|
||||
+++ b/sshd_config
|
||||
@@ -101,6 +101,8 @@ GSSAPICleanupCredentials no
|
||||
# If you just want the PAM account and session checks to run without
|
||||
# PAM authentication, then enable this but set PasswordAuthentication
|
||||
# and ChallengeResponseAuthentication to 'no'.
|
||||
+# WARNING: 'UsePAM no' is not supported in Fedora and may cause several
|
||||
+# problems.
|
||||
#UsePAM no
|
||||
|
||||
#AllowAgentForwarding yes
|
@ -1,871 +0,0 @@
|
||||
diff -up openssh/auth2.c.role-mls openssh/auth2.c
|
||||
--- openssh/auth2.c.role-mls 2018-08-20 07:57:29.000000000 +0200
|
||||
+++ openssh/auth2.c 2018-08-22 11:14:56.815430916 +0200
|
||||
@@ -256,6 +256,9 @@ input_userauth_request(int type, u_int32
|
||||
Authctxt *authctxt = ssh->authctxt;
|
||||
Authmethod *m = NULL;
|
||||
char *user = NULL, *service = NULL, *method = NULL, *style = NULL;
|
||||
+#ifdef WITH_SELINUX
|
||||
+ char *role = NULL;
|
||||
+#endif
|
||||
int r, authenticated = 0;
|
||||
double tstart = monotime_double();
|
||||
|
||||
@@ -268,6 +271,11 @@ input_userauth_request(int type, u_int32
|
||||
debug("userauth-request for user %s service %s method %s", user, service, method);
|
||||
debug("attempt %d failures %d", authctxt->attempt, authctxt->failures);
|
||||
|
||||
+#ifdef WITH_SELINUX
|
||||
+ if ((role = strchr(user, '/')) != NULL)
|
||||
+ *role++ = 0;
|
||||
+#endif
|
||||
+
|
||||
if ((style = strchr(user, ':')) != NULL)
|
||||
*style++ = 0;
|
||||
|
||||
@@ -296,8 +304,15 @@ input_userauth_request(int type, u_int32
|
||||
use_privsep ? " [net]" : "");
|
||||
authctxt->service = xstrdup(service);
|
||||
authctxt->style = style ? xstrdup(style) : NULL;
|
||||
- if (use_privsep)
|
||||
+#ifdef WITH_SELINUX
|
||||
+ authctxt->role = role ? xstrdup(role) : NULL;
|
||||
+#endif
|
||||
+ if (use_privsep) {
|
||||
mm_inform_authserv(service, style);
|
||||
+#ifdef WITH_SELINUX
|
||||
+ mm_inform_authrole(role);
|
||||
+#endif
|
||||
+ }
|
||||
userauth_banner(ssh);
|
||||
if (auth2_setup_methods_lists(authctxt) != 0)
|
||||
ssh_packet_disconnect(ssh,
|
||||
diff -up openssh/auth2-gss.c.role-mls openssh/auth2-gss.c
|
||||
--- openssh/auth2-gss.c.role-mls 2018-08-20 07:57:29.000000000 +0200
|
||||
+++ openssh/auth2-gss.c 2018-08-22 11:15:42.459799171 +0200
|
||||
@@ -281,6 +281,7 @@ input_gssapi_mic(int type, u_int32_t ple
|
||||
Authctxt *authctxt = ssh->authctxt;
|
||||
Gssctxt *gssctxt;
|
||||
int r, authenticated = 0;
|
||||
+ char *micuser;
|
||||
struct sshbuf *b;
|
||||
gss_buffer_desc mic, gssbuf;
|
||||
const char *displayname;
|
||||
@@ -298,7 +299,13 @@ input_gssapi_mic(int type, u_int32_t ple
|
||||
fatal("%s: sshbuf_new failed", __func__);
|
||||
mic.value = p;
|
||||
mic.length = len;
|
||||
- ssh_gssapi_buildmic(b, authctxt->user, authctxt->service,
|
||||
+#ifdef WITH_SELINUX
|
||||
+ if (authctxt->role && authctxt->role[0] != 0)
|
||||
+ xasprintf(&micuser, "%s/%s", authctxt->user, authctxt->role);
|
||||
+ else
|
||||
+#endif
|
||||
+ micuser = authctxt->user;
|
||||
+ ssh_gssapi_buildmic(b, micuser, authctxt->service,
|
||||
"gssapi-with-mic");
|
||||
|
||||
if ((gssbuf.value = sshbuf_mutable_ptr(b)) == NULL)
|
||||
@@ -311,6 +318,8 @@ input_gssapi_mic(int type, u_int32_t ple
|
||||
logit("GSSAPI MIC check failed");
|
||||
|
||||
sshbuf_free(b);
|
||||
+ if (micuser != authctxt->user)
|
||||
+ free(micuser);
|
||||
free(mic.value);
|
||||
|
||||
if ((!use_privsep || mm_is_monitor()) &&
|
||||
diff -up openssh/auth2-hostbased.c.role-mls openssh/auth2-hostbased.c
|
||||
--- openssh/auth2-hostbased.c.role-mls 2018-08-20 07:57:29.000000000 +0200
|
||||
+++ openssh/auth2-hostbased.c 2018-08-22 11:14:56.816430924 +0200
|
||||
@@ -123,7 +123,16 @@ userauth_hostbased(struct ssh *ssh)
|
||||
/* reconstruct packet */
|
||||
if ((r = sshbuf_put_string(b, session_id2, session_id2_len)) != 0 ||
|
||||
(r = sshbuf_put_u8(b, SSH2_MSG_USERAUTH_REQUEST)) != 0 ||
|
||||
+#ifdef WITH_SELINUX
|
||||
+ (authctxt->role
|
||||
+ ? ( (r = sshbuf_put_u32(b, strlen(authctxt->user)+strlen(authctxt->role)+1)) != 0 ||
|
||||
+ (r = sshbuf_put(b, authctxt->user, strlen(authctxt->user))) != 0 ||
|
||||
+ (r = sshbuf_put_u8(b, '/') != 0) ||
|
||||
+ (r = sshbuf_put(b, authctxt->role, strlen(authctxt->role))) != 0)
|
||||
+ : (r = sshbuf_put_cstring(b, authctxt->user)) != 0) ||
|
||||
+#else
|
||||
(r = sshbuf_put_cstring(b, authctxt->user)) != 0 ||
|
||||
+#endif
|
||||
(r = sshbuf_put_cstring(b, authctxt->service)) != 0 ||
|
||||
(r = sshbuf_put_cstring(b, "hostbased")) != 0 ||
|
||||
(r = sshbuf_put_string(b, pkalg, alen)) != 0 ||
|
||||
diff -up openssh/auth2-pubkey.c.role-mls openssh/auth2-pubkey.c
|
||||
--- openssh/auth2-pubkey.c.role-mls 2018-08-22 11:14:56.816430924 +0200
|
||||
+++ openssh/auth2-pubkey.c 2018-08-22 11:17:07.331483958 +0200
|
||||
@@ -169,9 +169,16 @@ userauth_pubkey(struct ssh *ssh)
|
||||
goto done;
|
||||
}
|
||||
/* reconstruct packet */
|
||||
- xasprintf(&userstyle, "%s%s%s", authctxt->user,
|
||||
+ xasprintf(&userstyle, "%s%s%s%s%s", authctxt->user,
|
||||
authctxt->style ? ":" : "",
|
||||
- authctxt->style ? authctxt->style : "");
|
||||
+ authctxt->style ? authctxt->style : "",
|
||||
+#ifdef WITH_SELINUX
|
||||
+ authctxt->role ? "/" : "",
|
||||
+ authctxt->role ? authctxt->role : ""
|
||||
+#else
|
||||
+ "", ""
|
||||
+#endif
|
||||
+ );
|
||||
if ((r = sshbuf_put_u8(b, SSH2_MSG_USERAUTH_REQUEST)) != 0 ||
|
||||
(r = sshbuf_put_cstring(b, userstyle)) != 0 ||
|
||||
(r = sshbuf_put_cstring(b, authctxt->service)) != 0 ||
|
||||
diff -up openssh/auth.h.role-mls openssh/auth.h
|
||||
--- openssh/auth.h.role-mls 2018-08-20 07:57:29.000000000 +0200
|
||||
+++ openssh/auth.h 2018-08-22 11:14:56.816430924 +0200
|
||||
@@ -65,6 +65,9 @@ struct Authctxt {
|
||||
char *service;
|
||||
struct passwd *pw; /* set if 'valid' */
|
||||
char *style;
|
||||
+#ifdef WITH_SELINUX
|
||||
+ char *role;
|
||||
+#endif
|
||||
|
||||
/* Method lists for multiple authentication */
|
||||
char **auth_methods; /* modified from server config */
|
||||
diff -up openssh/auth-pam.c.role-mls openssh/auth-pam.c
|
||||
--- openssh/auth-pam.c.role-mls 2018-08-20 07:57:29.000000000 +0200
|
||||
+++ openssh/auth-pam.c 2018-08-22 11:14:56.816430924 +0200
|
||||
@@ -1172,7 +1172,7 @@ is_pam_session_open(void)
|
||||
* during the ssh authentication process.
|
||||
*/
|
||||
int
|
||||
-do_pam_putenv(char *name, char *value)
|
||||
+do_pam_putenv(char *name, const char *value)
|
||||
{
|
||||
int ret = 1;
|
||||
char *compound;
|
||||
diff -up openssh/auth-pam.h.role-mls openssh/auth-pam.h
|
||||
--- openssh/auth-pam.h.role-mls 2018-08-20 07:57:29.000000000 +0200
|
||||
+++ openssh/auth-pam.h 2018-08-22 11:14:56.817430932 +0200
|
||||
@@ -33,7 +33,7 @@ u_int do_pam_account(void);
|
||||
void do_pam_session(struct ssh *);
|
||||
void do_pam_setcred(int );
|
||||
void do_pam_chauthtok(void);
|
||||
-int do_pam_putenv(char *, char *);
|
||||
+int do_pam_putenv(char *, const char *);
|
||||
char ** fetch_pam_environment(void);
|
||||
char ** fetch_pam_child_environment(void);
|
||||
void free_pam_environment(char **);
|
||||
diff -up openssh/misc.c.role-mls openssh/misc.c
|
||||
--- openssh/misc.c.role-mls 2018-08-20 07:57:29.000000000 +0200
|
||||
+++ openssh/misc.c 2018-08-22 11:14:56.817430932 +0200
|
||||
@@ -542,6 +542,7 @@ char *
|
||||
colon(char *cp)
|
||||
{
|
||||
int flag = 0;
|
||||
+ int start = 1;
|
||||
|
||||
if (*cp == ':') /* Leading colon is part of file name. */
|
||||
return NULL;
|
||||
@@ -557,6 +558,13 @@ colon(char *cp)
|
||||
return (cp);
|
||||
if (*cp == '/')
|
||||
return NULL;
|
||||
+ if (start) {
|
||||
+ /* Slash on beginning or after dots only denotes file name. */
|
||||
+ if (*cp == '/')
|
||||
+ return (0);
|
||||
+ if (*cp != '.')
|
||||
+ start = 0;
|
||||
+ }
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
diff -up openssh/monitor.c.role-mls openssh/monitor.c
|
||||
--- openssh/monitor.c.role-mls 2018-08-20 07:57:29.000000000 +0200
|
||||
+++ openssh/monitor.c 2018-08-22 11:19:56.006844867 +0200
|
||||
@@ -115,6 +115,9 @@ int mm_answer_sign(int, struct sshbuf *)
|
||||
int mm_answer_pwnamallow(struct ssh *, int, struct sshbuf *);
|
||||
int mm_answer_auth2_read_banner(struct ssh *, int, struct sshbuf *);
|
||||
int mm_answer_authserv(struct ssh *, int, struct sshbuf *);
|
||||
+#ifdef WITH_SELINUX
|
||||
+int mm_answer_authrole(struct ssh *, int, struct sshbuf *);
|
||||
+#endif
|
||||
int mm_answer_authpassword(struct ssh *, int, struct sshbuf *);
|
||||
int mm_answer_bsdauthquery(struct ssh *, int, struct sshbuf *);
|
||||
int mm_answer_bsdauthrespond(struct ssh *, int, struct sshbuf *);
|
||||
@@ -189,6 +192,9 @@ struct mon_table mon_dispatch_proto20[]
|
||||
{MONITOR_REQ_SIGN, MON_ONCE, mm_answer_sign},
|
||||
{MONITOR_REQ_PWNAM, MON_ONCE, mm_answer_pwnamallow},
|
||||
{MONITOR_REQ_AUTHSERV, MON_ONCE, mm_answer_authserv},
|
||||
+#ifdef WITH_SELINUX
|
||||
+ {MONITOR_REQ_AUTHROLE, MON_ONCE, mm_answer_authrole},
|
||||
+#endif
|
||||
{MONITOR_REQ_AUTH2_READ_BANNER, MON_ONCE, mm_answer_auth2_read_banner},
|
||||
{MONITOR_REQ_AUTHPASSWORD, MON_AUTH, mm_answer_authpassword},
|
||||
#ifdef USE_PAM
|
||||
@@ -796,6 +802,9 @@ mm_answer_pwnamallow(int sock, struct ss
|
||||
|
||||
/* Allow service/style information on the auth context */
|
||||
monitor_permit(mon_dispatch, MONITOR_REQ_AUTHSERV, 1);
|
||||
+#ifdef WITH_SELINUX
|
||||
+ monitor_permit(mon_dispatch, MONITOR_REQ_AUTHROLE, 1);
|
||||
+#endif
|
||||
monitor_permit(mon_dispatch, MONITOR_REQ_AUTH2_READ_BANNER, 1);
|
||||
|
||||
#ifdef USE_PAM
|
||||
@@ -842,6 +851,26 @@ mm_answer_authserv(int sock, struct sshb
|
||||
return found;
|
||||
}
|
||||
|
||||
+#ifdef WITH_SELINUX
|
||||
+int
|
||||
+mm_answer_authrole(struct ssh *ssh, int sock, struct sshbuf *m)
|
||||
+{
|
||||
+ int r;
|
||||
+ monitor_permit_authentications(1);
|
||||
+
|
||||
+ if ((r = sshbuf_get_cstring(m, &authctxt->role, NULL)) != 0)
|
||||
+ fatal("%s: buffer error: %s", __func__, ssh_err(r));
|
||||
+ debug3("%s: role=%s", __func__, authctxt->role);
|
||||
+
|
||||
+ if (strlen(authctxt->role) == 0) {
|
||||
+ free(authctxt->role);
|
||||
+ authctxt->role = NULL;
|
||||
+ }
|
||||
+
|
||||
+ return (0);
|
||||
+}
|
||||
+#endif
|
||||
+
|
||||
int
|
||||
mm_answer_authpassword(struct ssh *ssh, int sock, struct sshbuf *m)
|
||||
{
|
||||
@@ -1218,7 +1247,7 @@ monitor_valid_userblob(u_char *data, u_i
|
||||
{
|
||||
struct sshbuf *b;
|
||||
const u_char *p;
|
||||
- char *userstyle, *cp;
|
||||
+ char *userstyle, *s, *cp;
|
||||
size_t len;
|
||||
u_char type;
|
||||
int r, fail = 0;
|
||||
@@ -1251,6 +1280,8 @@ monitor_valid_userblob(u_char *data, u_i
|
||||
fail++;
|
||||
if ((r = sshbuf_get_cstring(b, &cp, NULL)) != 0)
|
||||
fatal("%s: buffer error: %s", __func__, ssh_err(r));
|
||||
+ if ((s = strchr(cp, '/')) != NULL)
|
||||
+ *s = '\0';
|
||||
xasprintf(&userstyle, "%s%s%s", authctxt->user,
|
||||
authctxt->style ? ":" : "",
|
||||
authctxt->style ? authctxt->style : "");
|
||||
@@ -1286,7 +1317,7 @@ monitor_valid_hostbasedblob(u_char *data
|
||||
{
|
||||
struct sshbuf *b;
|
||||
const u_char *p;
|
||||
- char *cp, *userstyle;
|
||||
+ char *cp, *s, *userstyle;
|
||||
size_t len;
|
||||
int r, fail = 0;
|
||||
u_char type;
|
||||
@@ -1308,6 +1339,8 @@ monitor_valid_hostbasedblob(u_char *data
|
||||
fail++;
|
||||
if ((r = sshbuf_get_cstring(b, &cp, NULL)) != 0)
|
||||
fatal("%s: buffer error: %s", __func__, ssh_err(r));
|
||||
+ if ((s = strchr(p, '/')) != NULL)
|
||||
+ *s = '\0';
|
||||
xasprintf(&userstyle, "%s%s%s", authctxt->user,
|
||||
authctxt->style ? ":" : "",
|
||||
authctxt->style ? authctxt->style : "");
|
||||
diff -up openssh/monitor.h.role-mls openssh/monitor.h
|
||||
--- openssh/monitor.h.role-mls 2018-08-20 07:57:29.000000000 +0200
|
||||
+++ openssh/monitor.h 2018-08-22 11:14:56.818430941 +0200
|
||||
@@ -55,6 +55,10 @@ enum monitor_reqtype {
|
||||
MONITOR_REQ_GSSCHECKMIC = 48, MONITOR_ANS_GSSCHECKMIC = 49,
|
||||
MONITOR_REQ_TERM = 50,
|
||||
|
||||
+#ifdef WITH_SELINUX
|
||||
+ MONITOR_REQ_AUTHROLE = 80,
|
||||
+#endif
|
||||
+
|
||||
MONITOR_REQ_PAM_START = 100,
|
||||
MONITOR_REQ_PAM_ACCOUNT = 102, MONITOR_ANS_PAM_ACCOUNT = 103,
|
||||
MONITOR_REQ_PAM_INIT_CTX = 104, MONITOR_ANS_PAM_INIT_CTX = 105,
|
||||
diff -up openssh/monitor_wrap.c.role-mls openssh/monitor_wrap.c
|
||||
--- openssh/monitor_wrap.c.role-mls 2018-08-22 11:14:56.818430941 +0200
|
||||
+++ openssh/monitor_wrap.c 2018-08-22 11:21:47.938747968 +0200
|
||||
@@ -390,6 +390,27 @@ mm_inform_authserv(char *service, char *
|
||||
sshbuf_free(m);
|
||||
}
|
||||
|
||||
+/* Inform the privileged process about role */
|
||||
+
|
||||
+#ifdef WITH_SELINUX
|
||||
+void
|
||||
+mm_inform_authrole(char *role)
|
||||
+{
|
||||
+ int r;
|
||||
+ struct sshbuf *m;
|
||||
+
|
||||
+ debug3("%s entering", __func__);
|
||||
+
|
||||
+ if ((m = sshbuf_new()) == NULL)
|
||||
+ fatal("%s: sshbuf_new failed", __func__);
|
||||
+ if ((r = sshbuf_put_cstring(m, role ? role : "")) != 0)
|
||||
+ fatal("%s: buffer error: %s", __func__, ssh_err(r));
|
||||
+ mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_AUTHROLE, m);
|
||||
+
|
||||
+ sshbuf_free(m);
|
||||
+}
|
||||
+#endif
|
||||
+
|
||||
/* Do the password authentication */
|
||||
int
|
||||
mm_auth_password(struct ssh *ssh, char *password)
|
||||
diff -up openssh/monitor_wrap.h.role-mls openssh/monitor_wrap.h
|
||||
--- openssh/monitor_wrap.h.role-mls 2018-08-22 11:14:56.818430941 +0200
|
||||
+++ openssh/monitor_wrap.h 2018-08-22 11:22:10.439929513 +0200
|
||||
@@ -44,6 +44,9 @@ DH *mm_choose_dh(int, int, int);
|
||||
const u_char *, size_t, const char *, const char *,
|
||||
const char *, u_int compat);
|
||||
void mm_inform_authserv(char *, char *);
|
||||
+#ifdef WITH_SELINUX
|
||||
+void mm_inform_authrole(char *);
|
||||
+#endif
|
||||
struct passwd *mm_getpwnamallow(struct ssh *, const char *);
|
||||
char *mm_auth2_read_banner(void);
|
||||
int mm_auth_password(struct ssh *, char *);
|
||||
diff -up openssh/openbsd-compat/Makefile.in.role-mls openssh/openbsd-compat/Makefile.in
|
||||
--- openssh/openbsd-compat/Makefile.in.role-mls 2018-08-20 07:57:29.000000000 +0200
|
||||
+++ openssh/openbsd-compat/Makefile.in 2018-08-22 11:14:56.819430949 +0200
|
||||
@@ -92,7 +92,8 @@ PORTS= port-aix.o \
|
||||
port-linux.o \
|
||||
port-solaris.o \
|
||||
port-net.o \
|
||||
- port-uw.o
|
||||
+ port-uw.o \
|
||||
+ port-linux-sshd.o
|
||||
|
||||
.c.o:
|
||||
$(CC) $(CFLAGS_NOPIE) $(PICFLAG) $(CPPFLAGS) -c $<
|
||||
diff -up openssh/openbsd-compat/port-linux.c.role-mls openssh/openbsd-compat/port-linux.c
|
||||
--- openssh/openbsd-compat/port-linux.c.role-mls 2018-08-20 07:57:29.000000000 +0200
|
||||
+++ openssh/openbsd-compat/port-linux.c 2018-08-22 11:14:56.819430949 +0200
|
||||
@@ -100,37 +100,6 @@ ssh_selinux_getctxbyname(char *pwname)
|
||||
return sc;
|
||||
}
|
||||
|
||||
-/* Set the execution context to the default for the specified user */
|
||||
-void
|
||||
-ssh_selinux_setup_exec_context(char *pwname)
|
||||
-{
|
||||
- security_context_t user_ctx = NULL;
|
||||
-
|
||||
- if (!ssh_selinux_enabled())
|
||||
- return;
|
||||
-
|
||||
- debug3("%s: setting execution context", __func__);
|
||||
-
|
||||
- user_ctx = ssh_selinux_getctxbyname(pwname);
|
||||
- if (setexeccon(user_ctx) != 0) {
|
||||
- switch (security_getenforce()) {
|
||||
- case -1:
|
||||
- fatal("%s: security_getenforce() failed", __func__);
|
||||
- case 0:
|
||||
- error("%s: Failed to set SELinux execution "
|
||||
- "context for %s", __func__, pwname);
|
||||
- break;
|
||||
- default:
|
||||
- fatal("%s: Failed to set SELinux execution context "
|
||||
- "for %s (in enforcing mode)", __func__, pwname);
|
||||
- }
|
||||
- }
|
||||
- if (user_ctx != NULL)
|
||||
- freecon(user_ctx);
|
||||
-
|
||||
- debug3("%s: done", __func__);
|
||||
-}
|
||||
-
|
||||
/* Set the TTY context for the specified user */
|
||||
void
|
||||
ssh_selinux_setup_pty(char *pwname, const char *tty)
|
||||
@@ -145,7 +114,11 @@ ssh_selinux_setup_pty(char *pwname, cons
|
||||
|
||||
debug3("%s: setting TTY context on %s", __func__, tty);
|
||||
|
||||
- user_ctx = ssh_selinux_getctxbyname(pwname);
|
||||
+ if (getexeccon(&user_ctx) != 0) {
|
||||
+ error("%s: getexeccon: %s", __func__, strerror(errno));
|
||||
+ goto out;
|
||||
+ }
|
||||
+
|
||||
|
||||
/* XXX: should these calls fatal() upon failure in enforcing mode? */
|
||||
|
||||
diff -up openssh/openbsd-compat/port-linux.h.role-mls openssh/openbsd-compat/port-linux.h
|
||||
--- openssh/openbsd-compat/port-linux.h.role-mls 2018-08-20 07:57:29.000000000 +0200
|
||||
+++ openssh/openbsd-compat/port-linux.h 2018-08-22 11:14:56.819430949 +0200
|
||||
@@ -20,9 +20,10 @@
|
||||
#ifdef WITH_SELINUX
|
||||
int ssh_selinux_enabled(void);
|
||||
void ssh_selinux_setup_pty(char *, const char *);
|
||||
-void ssh_selinux_setup_exec_context(char *);
|
||||
void ssh_selinux_change_context(const char *);
|
||||
void ssh_selinux_setfscreatecon(const char *);
|
||||
+
|
||||
+void sshd_selinux_setup_exec_context(char *);
|
||||
#endif
|
||||
|
||||
#ifdef LINUX_OOM_ADJUST
|
||||
diff -up openssh/openbsd-compat/port-linux-sshd.c.role-mls openssh/openbsd-compat/port-linux-sshd.c
|
||||
--- openssh/openbsd-compat/port-linux-sshd.c.role-mls 2018-08-22 11:14:56.819430949 +0200
|
||||
+++ openssh/openbsd-compat/port-linux-sshd.c 2018-08-22 11:14:56.819430949 +0200
|
||||
@@ -0,0 +1,425 @@
|
||||
+/*
|
||||
+ * Copyright (c) 2005 Daniel Walsh <dwalsh@redhat.com>
|
||||
+ * Copyright (c) 2014 Petr Lautrbach <plautrba@redhat.com>
|
||||
+ *
|
||||
+ * Permission to use, copy, modify, and distribute this software for any
|
||||
+ * purpose with or without fee is hereby granted, provided that the above
|
||||
+ * copyright notice and this permission notice appear in all copies.
|
||||
+ *
|
||||
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
+ */
|
||||
+
|
||||
+/*
|
||||
+ * Linux-specific portability code - just SELinux support for sshd at present
|
||||
+ */
|
||||
+
|
||||
+#include "includes.h"
|
||||
+
|
||||
+#if defined(WITH_SELINUX) || defined(LINUX_OOM_ADJUST)
|
||||
+#include <errno.h>
|
||||
+#include <stdarg.h>
|
||||
+#include <string.h>
|
||||
+#include <stdio.h>
|
||||
+#include <stdlib.h>
|
||||
+
|
||||
+#include "log.h"
|
||||
+#include "xmalloc.h"
|
||||
+#include "misc.h" /* servconf.h needs misc.h for struct ForwardOptions */
|
||||
+#include "servconf.h"
|
||||
+#include "port-linux.h"
|
||||
+#include "sshkey.h"
|
||||
+#include "hostfile.h"
|
||||
+#include "auth.h"
|
||||
+
|
||||
+#ifdef WITH_SELINUX
|
||||
+#include <selinux/selinux.h>
|
||||
+#include <selinux/context.h>
|
||||
+#include <selinux/get_context_list.h>
|
||||
+#include <selinux/get_default_type.h>
|
||||
+
|
||||
+#ifdef HAVE_LINUX_AUDIT
|
||||
+#include <libaudit.h>
|
||||
+#include <unistd.h>
|
||||
+#endif
|
||||
+
|
||||
+extern ServerOptions options;
|
||||
+extern Authctxt *the_authctxt;
|
||||
+extern int inetd_flag;
|
||||
+extern int rexeced_flag;
|
||||
+
|
||||
+/* Send audit message */
|
||||
+static int
|
||||
+sshd_selinux_send_audit_message(int success, security_context_t default_context,
|
||||
+ security_context_t selected_context)
|
||||
+{
|
||||
+ int rc=0;
|
||||
+#ifdef HAVE_LINUX_AUDIT
|
||||
+ char *msg = NULL;
|
||||
+ int audit_fd = audit_open();
|
||||
+ security_context_t default_raw=NULL;
|
||||
+ security_context_t selected_raw=NULL;
|
||||
+ rc = -1;
|
||||
+ if (audit_fd < 0) {
|
||||
+ if (errno == EINVAL || errno == EPROTONOSUPPORT ||
|
||||
+ errno == EAFNOSUPPORT)
|
||||
+ return 0; /* No audit support in kernel */
|
||||
+ error("Error connecting to audit system.");
|
||||
+ return rc;
|
||||
+ }
|
||||
+ if (selinux_trans_to_raw_context(default_context, &default_raw) < 0) {
|
||||
+ error("Error translating default context.");
|
||||
+ default_raw = NULL;
|
||||
+ }
|
||||
+ if (selinux_trans_to_raw_context(selected_context, &selected_raw) < 0) {
|
||||
+ error("Error translating selected context.");
|
||||
+ selected_raw = NULL;
|
||||
+ }
|
||||
+ if (asprintf(&msg, "sshd: default-context=%s selected-context=%s",
|
||||
+ default_raw ? default_raw : (default_context ? default_context: "?"),
|
||||
+ selected_context ? selected_raw : (selected_context ? selected_context :"?")) < 0) {
|
||||
+ error("Error allocating memory.");
|
||||
+ goto out;
|
||||
+ }
|
||||
+ if (audit_log_user_message(audit_fd, AUDIT_USER_ROLE_CHANGE,
|
||||
+ msg, NULL, NULL, NULL, success) <= 0) {
|
||||
+ error("Error sending audit message.");
|
||||
+ goto out;
|
||||
+ }
|
||||
+ rc = 0;
|
||||
+ out:
|
||||
+ free(msg);
|
||||
+ freecon(default_raw);
|
||||
+ freecon(selected_raw);
|
||||
+ close(audit_fd);
|
||||
+#endif
|
||||
+ return rc;
|
||||
+}
|
||||
+
|
||||
+static int
|
||||
+mls_range_allowed(security_context_t src, security_context_t dst)
|
||||
+{
|
||||
+ struct av_decision avd;
|
||||
+ int retval;
|
||||
+ access_vector_t bit;
|
||||
+ security_class_t class;
|
||||
+
|
||||
+ debug("%s: src:%s dst:%s", __func__, src, dst);
|
||||
+ class = string_to_security_class("context");
|
||||
+ if (!class) {
|
||||
+ error("string_to_security_class failed to translate security class context");
|
||||
+ return 1;
|
||||
+ }
|
||||
+ bit = string_to_av_perm(class, "contains");
|
||||
+ if (!bit) {
|
||||
+ error("string_to_av_perm failed to translate av perm contains");
|
||||
+ return 1;
|
||||
+ }
|
||||
+ retval = security_compute_av(src, dst, class, bit, &avd);
|
||||
+ if (retval || ((bit & avd.allowed) != bit))
|
||||
+ return 0;
|
||||
+
|
||||
+ return 1;
|
||||
+}
|
||||
+
|
||||
+static int
|
||||
+get_user_context(const char *sename, const char *role, const char *lvl,
|
||||
+ security_context_t *sc) {
|
||||
+#ifdef HAVE_GET_DEFAULT_CONTEXT_WITH_LEVEL
|
||||
+ if (lvl == NULL || lvl[0] == '\0' || get_default_context_with_level(sename, lvl, NULL, sc) != 0) {
|
||||
+ /* User may have requested a level completely outside of his
|
||||
+ allowed range. We get a context just for auditing as the
|
||||
+ range check below will certainly fail for default context. */
|
||||
+#endif
|
||||
+ if (get_default_context(sename, NULL, sc) != 0) {
|
||||
+ *sc = NULL;
|
||||
+ return -1;
|
||||
+ }
|
||||
+#ifdef HAVE_GET_DEFAULT_CONTEXT_WITH_LEVEL
|
||||
+ }
|
||||
+#endif
|
||||
+ if (role != NULL && role[0]) {
|
||||
+ context_t con;
|
||||
+ char *type=NULL;
|
||||
+ if (get_default_type(role, &type) != 0) {
|
||||
+ error("get_default_type: failed to get default type for '%s'",
|
||||
+ role);
|
||||
+ goto out;
|
||||
+ }
|
||||
+ con = context_new(*sc);
|
||||
+ if (!con) {
|
||||
+ goto out;
|
||||
+ }
|
||||
+ context_role_set(con, role);
|
||||
+ context_type_set(con, type);
|
||||
+ freecon(*sc);
|
||||
+ *sc = strdup(context_str(con));
|
||||
+ context_free(con);
|
||||
+ if (!*sc)
|
||||
+ return -1;
|
||||
+ }
|
||||
+#ifdef HAVE_GET_DEFAULT_CONTEXT_WITH_LEVEL
|
||||
+ if (lvl != NULL && lvl[0]) {
|
||||
+ /* verify that the requested range is obtained */
|
||||
+ context_t con;
|
||||
+ security_context_t obtained_raw;
|
||||
+ security_context_t requested_raw;
|
||||
+ con = context_new(*sc);
|
||||
+ if (!con) {
|
||||
+ goto out;
|
||||
+ }
|
||||
+ context_range_set(con, lvl);
|
||||
+ if (selinux_trans_to_raw_context(*sc, &obtained_raw) < 0) {
|
||||
+ context_free(con);
|
||||
+ goto out;
|
||||
+ }
|
||||
+ if (selinux_trans_to_raw_context(context_str(con), &requested_raw) < 0) {
|
||||
+ freecon(obtained_raw);
|
||||
+ context_free(con);
|
||||
+ goto out;
|
||||
+ }
|
||||
+
|
||||
+ debug("get_user_context: obtained context '%s' requested context '%s'",
|
||||
+ obtained_raw, requested_raw);
|
||||
+ if (strcmp(obtained_raw, requested_raw)) {
|
||||
+ /* set the context to the real requested one but fail */
|
||||
+ freecon(requested_raw);
|
||||
+ freecon(obtained_raw);
|
||||
+ freecon(*sc);
|
||||
+ *sc = strdup(context_str(con));
|
||||
+ context_free(con);
|
||||
+ return -1;
|
||||
+ }
|
||||
+ freecon(requested_raw);
|
||||
+ freecon(obtained_raw);
|
||||
+ context_free(con);
|
||||
+ }
|
||||
+#endif
|
||||
+ return 0;
|
||||
+ out:
|
||||
+ freecon(*sc);
|
||||
+ *sc = NULL;
|
||||
+ return -1;
|
||||
+}
|
||||
+
|
||||
+static void
|
||||
+ssh_selinux_get_role_level(char **role, const char **level)
|
||||
+{
|
||||
+ *role = NULL;
|
||||
+ *level = NULL;
|
||||
+ if (the_authctxt) {
|
||||
+ if (the_authctxt->role != NULL) {
|
||||
+ char *slash;
|
||||
+ *role = xstrdup(the_authctxt->role);
|
||||
+ if ((slash = strchr(*role, '/')) != NULL) {
|
||||
+ *slash = '\0';
|
||||
+ *level = slash + 1;
|
||||
+ }
|
||||
+ }
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
+/* Return the default security context for the given username */
|
||||
+static int
|
||||
+sshd_selinux_getctxbyname(char *pwname,
|
||||
+ security_context_t *default_sc, security_context_t *user_sc)
|
||||
+{
|
||||
+ char *sename, *lvl;
|
||||
+ char *role;
|
||||
+ const char *reqlvl;
|
||||
+ int r = 0;
|
||||
+ context_t con = NULL;
|
||||
+
|
||||
+ ssh_selinux_get_role_level(&role, &reqlvl);
|
||||
+
|
||||
+#ifdef HAVE_GETSEUSERBYNAME
|
||||
+ if ((r=getseuserbyname(pwname, &sename, &lvl)) != 0) {
|
||||
+ sename = NULL;
|
||||
+ lvl = NULL;
|
||||
+ }
|
||||
+#else
|
||||
+ sename = pwname;
|
||||
+ lvl = "";
|
||||
+#endif
|
||||
+
|
||||
+ if (r == 0) {
|
||||
+#ifdef HAVE_GET_DEFAULT_CONTEXT_WITH_LEVEL
|
||||
+ r = get_default_context_with_level(sename, lvl, NULL, default_sc);
|
||||
+#else
|
||||
+ r = get_default_context(sename, NULL, default_sc);
|
||||
+#endif
|
||||
+ }
|
||||
+
|
||||
+ if (r == 0) {
|
||||
+ /* If launched from xinetd, we must use current level */
|
||||
+ if (inetd_flag && !rexeced_flag) {
|
||||
+ security_context_t sshdsc=NULL;
|
||||
+
|
||||
+ if (getcon_raw(&sshdsc) < 0)
|
||||
+ fatal("failed to allocate security context");
|
||||
+
|
||||
+ if ((con=context_new(sshdsc)) == NULL)
|
||||
+ fatal("failed to allocate selinux context");
|
||||
+ reqlvl = context_range_get(con);
|
||||
+ freecon(sshdsc);
|
||||
+ if (reqlvl !=NULL && lvl != NULL && strcmp(reqlvl, lvl) == 0)
|
||||
+ /* we actually don't change level */
|
||||
+ reqlvl = "";
|
||||
+
|
||||
+ debug("%s: current connection level '%s'", __func__, reqlvl);
|
||||
+
|
||||
+ }
|
||||
+
|
||||
+ if ((reqlvl != NULL && reqlvl[0]) || (role != NULL && role[0])) {
|
||||
+ r = get_user_context(sename, role, reqlvl, user_sc);
|
||||
+
|
||||
+ if (r == 0 && reqlvl != NULL && reqlvl[0]) {
|
||||
+ security_context_t default_level_sc = *default_sc;
|
||||
+ if (role != NULL && role[0]) {
|
||||
+ if (get_user_context(sename, role, lvl, &default_level_sc) < 0)
|
||||
+ default_level_sc = *default_sc;
|
||||
+ }
|
||||
+ /* verify that the requested range is contained in the user range */
|
||||
+ if (mls_range_allowed(default_level_sc, *user_sc)) {
|
||||
+ logit("permit MLS level %s (user range %s)", reqlvl, lvl);
|
||||
+ } else {
|
||||
+ r = -1;
|
||||
+ error("deny MLS level %s (user range %s)", reqlvl, lvl);
|
||||
+ }
|
||||
+ if (default_level_sc != *default_sc)
|
||||
+ freecon(default_level_sc);
|
||||
+ }
|
||||
+ } else {
|
||||
+ *user_sc = *default_sc;
|
||||
+ }
|
||||
+ }
|
||||
+ if (r != 0) {
|
||||
+ error("%s: Failed to get default SELinux security "
|
||||
+ "context for %s", __func__, pwname);
|
||||
+ }
|
||||
+
|
||||
+#ifdef HAVE_GETSEUSERBYNAME
|
||||
+ free(sename);
|
||||
+ free(lvl);
|
||||
+#endif
|
||||
+
|
||||
+ if (role != NULL)
|
||||
+ free(role);
|
||||
+ if (con)
|
||||
+ context_free(con);
|
||||
+
|
||||
+ return (r);
|
||||
+}
|
||||
+
|
||||
+/* Setup environment variables for pam_selinux */
|
||||
+static int
|
||||
+sshd_selinux_setup_pam_variables(void)
|
||||
+{
|
||||
+ const char *reqlvl;
|
||||
+ char *role;
|
||||
+ char *use_current;
|
||||
+ int rv;
|
||||
+
|
||||
+ debug3("%s: setting execution context", __func__);
|
||||
+
|
||||
+ ssh_selinux_get_role_level(&role, &reqlvl);
|
||||
+
|
||||
+ rv = do_pam_putenv("SELINUX_ROLE_REQUESTED", role ? role : "");
|
||||
+
|
||||
+ if (inetd_flag && !rexeced_flag) {
|
||||
+ use_current = "1";
|
||||
+ } else {
|
||||
+ use_current = "";
|
||||
+ rv = rv || do_pam_putenv("SELINUX_LEVEL_REQUESTED", reqlvl ? reqlvl: "");
|
||||
+ }
|
||||
+
|
||||
+ rv = rv || do_pam_putenv("SELINUX_USE_CURRENT_RANGE", use_current);
|
||||
+
|
||||
+ if (role != NULL)
|
||||
+ free(role);
|
||||
+
|
||||
+ return rv;
|
||||
+}
|
||||
+
|
||||
+/* Set the execution context to the default for the specified user */
|
||||
+void
|
||||
+sshd_selinux_setup_exec_context(char *pwname)
|
||||
+{
|
||||
+ security_context_t user_ctx = NULL;
|
||||
+ int r = 0;
|
||||
+ security_context_t default_ctx = NULL;
|
||||
+
|
||||
+ if (!ssh_selinux_enabled())
|
||||
+ return;
|
||||
+
|
||||
+ if (options.use_pam) {
|
||||
+ /* do not compute context, just setup environment for pam_selinux */
|
||||
+ if (sshd_selinux_setup_pam_variables()) {
|
||||
+ switch (security_getenforce()) {
|
||||
+ case -1:
|
||||
+ fatal("%s: security_getenforce() failed", __func__);
|
||||
+ case 0:
|
||||
+ error("%s: SELinux PAM variable setup failure. Continuing in permissive mode.",
|
||||
+ __func__);
|
||||
+ break;
|
||||
+ default:
|
||||
+ fatal("%s: SELinux PAM variable setup failure. Aborting connection.",
|
||||
+ __func__);
|
||||
+ }
|
||||
+ }
|
||||
+ return;
|
||||
+ }
|
||||
+
|
||||
+ debug3("%s: setting execution context", __func__);
|
||||
+
|
||||
+ r = sshd_selinux_getctxbyname(pwname, &default_ctx, &user_ctx);
|
||||
+ if (r >= 0) {
|
||||
+ r = setexeccon(user_ctx);
|
||||
+ if (r < 0) {
|
||||
+ error("%s: Failed to set SELinux execution context %s for %s",
|
||||
+ __func__, user_ctx, pwname);
|
||||
+ }
|
||||
+#ifdef HAVE_SETKEYCREATECON
|
||||
+ else if (setkeycreatecon(user_ctx) < 0) {
|
||||
+ error("%s: Failed to set SELinux keyring creation context %s for %s",
|
||||
+ __func__, user_ctx, pwname);
|
||||
+ }
|
||||
+#endif
|
||||
+ }
|
||||
+ if (user_ctx == NULL) {
|
||||
+ user_ctx = default_ctx;
|
||||
+ }
|
||||
+ if (r < 0 || user_ctx != default_ctx) {
|
||||
+ /* audit just the case when user changed a role or there was
|
||||
+ a failure */
|
||||
+ sshd_selinux_send_audit_message(r >= 0, default_ctx, user_ctx);
|
||||
+ }
|
||||
+ if (r < 0) {
|
||||
+ switch (security_getenforce()) {
|
||||
+ case -1:
|
||||
+ fatal("%s: security_getenforce() failed", __func__);
|
||||
+ case 0:
|
||||
+ error("%s: SELinux failure. Continuing in permissive mode.",
|
||||
+ __func__);
|
||||
+ break;
|
||||
+ default:
|
||||
+ fatal("%s: SELinux failure. Aborting connection.",
|
||||
+ __func__);
|
||||
+ }
|
||||
+ }
|
||||
+ if (user_ctx != NULL && user_ctx != default_ctx)
|
||||
+ freecon(user_ctx);
|
||||
+ if (default_ctx != NULL)
|
||||
+ freecon(default_ctx);
|
||||
+
|
||||
+ debug3("%s: done", __func__);
|
||||
+}
|
||||
+
|
||||
+#endif
|
||||
+#endif
|
||||
+
|
||||
diff -up openssh/platform.c.role-mls openssh/platform.c
|
||||
--- openssh/platform.c.role-mls 2018-08-20 07:57:29.000000000 +0200
|
||||
+++ openssh/platform.c 2018-08-22 11:14:56.819430949 +0200
|
||||
@@ -183,7 +183,7 @@ platform_setusercontext_post_groups(stru
|
||||
}
|
||||
#endif /* HAVE_SETPCRED */
|
||||
#ifdef WITH_SELINUX
|
||||
- ssh_selinux_setup_exec_context(pw->pw_name);
|
||||
+ sshd_selinux_setup_exec_context(pw->pw_name);
|
||||
#endif
|
||||
}
|
||||
|
||||
diff -up openssh/sshd.c.role-mls openssh/sshd.c
|
||||
--- openssh/sshd.c.role-mls 2018-08-20 07:57:29.000000000 +0200
|
||||
+++ openssh/sshd.c 2018-08-22 11:14:56.820430957 +0200
|
||||
@@ -2186,6 +2186,9 @@ main(int ac, char **av)
|
||||
restore_uid();
|
||||
}
|
||||
#endif
|
||||
+#ifdef WITH_SELINUX
|
||||
+ sshd_selinux_setup_exec_context(authctxt->pw->pw_name);
|
||||
+#endif
|
||||
#ifdef USE_PAM
|
||||
if (options.use_pam) {
|
||||
do_pam_setcred(1);
|
@ -1,16 +0,0 @@
|
||||
diff --git a/scp.c b/scp.c
|
||||
index 60682c68..9344806e 100644
|
||||
--- a/scp.c
|
||||
+++ b/scp.c
|
||||
@@ -714,7 +714,9 @@ toremote(int argc, char **argv)
|
||||
addargs(&alist, "%s", host);
|
||||
addargs(&alist, "%s", cmd);
|
||||
addargs(&alist, "%s", src);
|
||||
- addargs(&alist, "%s%s%s:%s",
|
||||
+ addargs(&alist,
|
||||
+ /* IPv6 address needs to be enclosed with sqare brackets */
|
||||
+ strchr(host, ':') != NULL ? "%s%s[%s]:%s" : "%s%s%s:%s",
|
||||
tuser ? tuser : "", tuser ? "@" : "",
|
||||
thost, targ);
|
||||
if (do_local_cmd(&alist) != 0)
|
||||
|
@ -1,27 +0,0 @@
|
||||
From 22bfdcf060b632b5a6ff603f8f42ff166c211a66 Mon Sep 17 00:00:00 2001
|
||||
From: Jakub Jelen <jjelen@redhat.com>
|
||||
Date: Tue, 29 Sep 2020 10:02:45 +0000
|
||||
Subject: [PATCH] Fail hard on the first failed attempt to write the
|
||||
authorized_keys_file
|
||||
|
||||
---
|
||||
ssh-copy-id | 2 +-
|
||||
1 file changed, 1 insertion(+), 1 deletion(-)
|
||||
|
||||
diff --git a/contrib/ssh-copy-id b/contrib/ssh-copy-id
|
||||
index 392f64f..e69a23f 100755
|
||||
--- a/contrib/ssh-copy-id
|
||||
+++ b/contrib/ssh-copy-id
|
||||
@@ -251,7 +251,7 @@ installkeys_sh() {
|
||||
cd;
|
||||
umask 077;
|
||||
mkdir -p $(dirname "${AUTH_KEY_FILE}") &&
|
||||
- { [ -z \`tail -1c ${AUTH_KEY_FILE} 2>/dev/null\` ] || echo >> ${AUTH_KEY_FILE}; } &&
|
||||
+ { [ -z \`tail -1c ${AUTH_KEY_FILE} 2>/dev/null\` ] || echo >> ${AUTH_KEY_FILE} || exit 1; } &&
|
||||
cat >> ${AUTH_KEY_FILE} ||
|
||||
exit 1;
|
||||
if type restorecon >/dev/null 2>&1; then
|
||||
--
|
||||
GitLab
|
||||
|
||||
|
@ -1,502 +0,0 @@
|
||||
diff -up openssh-8.2p1/ssh_config.5.crypto-policies openssh-8.2p1/ssh_config.5
|
||||
--- openssh-8.2p1/ssh_config.5.crypto-policies 2020-03-26 14:40:44.546775605 +0100
|
||||
+++ openssh-8.2p1/ssh_config.5 2020-03-26 14:52:20.700649727 +0100
|
||||
@@ -359,17 +359,17 @@ or
|
||||
.Qq *.c.example.com
|
||||
domains.
|
||||
.It Cm CASignatureAlgorithms
|
||||
+The default is handled system-wide by
|
||||
+.Xr crypto-policies 7 .
|
||||
+To see the defaults and how to modify this default, see manual page
|
||||
+.Xr update-crypto-policies 8 .
|
||||
+.Pp
|
||||
Specifies which algorithms are allowed for signing of certificates
|
||||
by certificate authorities (CAs).
|
||||
-The default is:
|
||||
-.Bd -literal -offset indent
|
||||
-ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
|
||||
-ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
|
||||
-.Ed
|
||||
-.Pp
|
||||
.Xr ssh 1
|
||||
will not accept host certificates signed using algorithms other than those
|
||||
specified.
|
||||
+.Pp
|
||||
.It Cm CertificateFile
|
||||
Specifies a file from which the user's certificate is read.
|
||||
A corresponding private key must be provided separately in order
|
||||
@@ -424,20 +424,25 @@ If the option is set to
|
||||
.Cm no ,
|
||||
the check will not be executed.
|
||||
.It Cm Ciphers
|
||||
+The default is handled system-wide by
|
||||
+.Xr crypto-policies 7 .
|
||||
+To see the defaults and how to modify this default, see manual page
|
||||
+.Xr update-crypto-policies 8 .
|
||||
+.Pp
|
||||
Specifies the ciphers allowed and their order of preference.
|
||||
Multiple ciphers must be comma-separated.
|
||||
If the specified list begins with a
|
||||
.Sq +
|
||||
-character, then the specified ciphers will be appended to the default set
|
||||
-instead of replacing them.
|
||||
+character, then the specified ciphers will be appended to the built-in
|
||||
+openssh default set instead of replacing them.
|
||||
If the specified list begins with a
|
||||
.Sq -
|
||||
character, then the specified ciphers (including wildcards) will be removed
|
||||
-from the default set instead of replacing them.
|
||||
+from the built-in openssh default set instead of replacing them.
|
||||
If the specified list begins with a
|
||||
.Sq ^
|
||||
character, then the specified ciphers will be placed at the head of the
|
||||
-default set.
|
||||
+built-in openssh default set.
|
||||
.Pp
|
||||
The supported ciphers are:
|
||||
.Bd -literal -offset indent
|
||||
@@ -453,13 +458,6 @@ aes256-gcm@openssh.com
|
||||
chacha20-poly1305@openssh.com
|
||||
.Ed
|
||||
.Pp
|
||||
-The default is:
|
||||
-.Bd -literal -offset indent
|
||||
-chacha20-poly1305@openssh.com,
|
||||
-aes128-ctr,aes192-ctr,aes256-ctr,
|
||||
-aes128-gcm@openssh.com,aes256-gcm@openssh.com
|
||||
-.Ed
|
||||
-.Pp
|
||||
The list of available ciphers may also be obtained using
|
||||
.Qq ssh -Q cipher .
|
||||
.It Cm ClearAllForwardings
|
||||
@@ -812,6 +810,11 @@ command line will be passed untouched to
|
||||
The default is
|
||||
.Dq no .
|
||||
.It Cm GSSAPIKexAlgorithms
|
||||
+The default is handled system-wide by
|
||||
+.Xr crypto-policies 7 .
|
||||
+To see the defaults and how to modify this default, see manual page
|
||||
+.Xr update-crypto-policies 8 .
|
||||
+.Pp
|
||||
The list of key exchange algorithms that are offered for GSSAPI
|
||||
key exchange. Possible values are
|
||||
.Bd -literal -offset 3n
|
||||
@@ -824,10 +827,8 @@ gss-nistp256-sha256-,
|
||||
gss-curve25519-sha256-
|
||||
.Ed
|
||||
.Pp
|
||||
-The default is
|
||||
-.Dq gss-group14-sha256-,gss-group16-sha512-,gss-nistp256-sha256-,
|
||||
-gss-curve25519-sha256-,gss-group14-sha1-,gss-gex-sha1- .
|
||||
This option only applies to connections using GSSAPI.
|
||||
+.Pp
|
||||
.It Cm HashKnownHosts
|
||||
Indicates that
|
||||
.Xr ssh 1
|
||||
@@ -1149,29 +1150,25 @@ it may be zero or more of:
|
||||
and
|
||||
.Cm pam .
|
||||
.It Cm KexAlgorithms
|
||||
+The default is handled system-wide by
|
||||
+.Xr crypto-policies 7 .
|
||||
+To see the defaults and how to modify this default, see manual page
|
||||
+.Xr update-crypto-policies 8 .
|
||||
+.Pp
|
||||
Specifies the available KEX (Key Exchange) algorithms.
|
||||
Multiple algorithms must be comma-separated.
|
||||
If the specified list begins with a
|
||||
.Sq +
|
||||
-character, then the specified methods will be appended to the default set
|
||||
-instead of replacing them.
|
||||
+character, then the specified methods will be appended to the built-in
|
||||
+openssh default set instead of replacing them.
|
||||
If the specified list begins with a
|
||||
.Sq -
|
||||
character, then the specified methods (including wildcards) will be removed
|
||||
-from the default set instead of replacing them.
|
||||
+from the built-in openssh default set instead of replacing them.
|
||||
If the specified list begins with a
|
||||
.Sq ^
|
||||
character, then the specified methods will be placed at the head of the
|
||||
-default set.
|
||||
-The default is:
|
||||
-.Bd -literal -offset indent
|
||||
-curve25519-sha256,curve25519-sha256@libssh.org,
|
||||
-ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,
|
||||
-diffie-hellman-group-exchange-sha256,
|
||||
-diffie-hellman-group16-sha512,
|
||||
-diffie-hellman-group18-sha512,
|
||||
-diffie-hellman-group14-sha256
|
||||
-.Ed
|
||||
+built-in openssh default set.
|
||||
.Pp
|
||||
The list of available key exchange algorithms may also be obtained using
|
||||
.Qq ssh -Q kex .
|
||||
@@ -1231,37 +1228,33 @@ The default is INFO.
|
||||
DEBUG and DEBUG1 are equivalent.
|
||||
DEBUG2 and DEBUG3 each specify higher levels of verbose output.
|
||||
.It Cm MACs
|
||||
+The default is handled system-wide by
|
||||
+.Xr crypto-policies 7 .
|
||||
+To see the defaults and how to modify this default, see manual page
|
||||
+.Xr update-crypto-policies 8 .
|
||||
+.Pp
|
||||
Specifies the MAC (message authentication code) algorithms
|
||||
in order of preference.
|
||||
The MAC algorithm is used for data integrity protection.
|
||||
Multiple algorithms must be comma-separated.
|
||||
If the specified list begins with a
|
||||
.Sq +
|
||||
-character, then the specified algorithms will be appended to the default set
|
||||
-instead of replacing them.
|
||||
+character, then the specified algorithms will be appended to the built-in
|
||||
+openssh default set instead of replacing them.
|
||||
If the specified list begins with a
|
||||
.Sq -
|
||||
character, then the specified algorithms (including wildcards) will be removed
|
||||
-from the default set instead of replacing them.
|
||||
+from the built-in openssh default set instead of replacing them.
|
||||
If the specified list begins with a
|
||||
.Sq ^
|
||||
character, then the specified algorithms will be placed at the head of the
|
||||
-default set.
|
||||
+built-in openssh default set.
|
||||
.Pp
|
||||
The algorithms that contain
|
||||
.Qq -etm
|
||||
calculate the MAC after encryption (encrypt-then-mac).
|
||||
These are considered safer and their use recommended.
|
||||
.Pp
|
||||
-The default is:
|
||||
-.Bd -literal -offset indent
|
||||
-umac-64-etm@openssh.com,umac-128-etm@openssh.com,
|
||||
-hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,
|
||||
-hmac-sha1-etm@openssh.com,
|
||||
-umac-64@openssh.com,umac-128@openssh.com,
|
||||
-hmac-sha2-256,hmac-sha2-512,hmac-sha1
|
||||
-.Ed
|
||||
-.Pp
|
||||
The list of available MAC algorithms may also be obtained using
|
||||
.Qq ssh -Q mac .
|
||||
.It Cm NoHostAuthenticationForLocalhost
|
||||
@@ -1394,36 +1387,25 @@ instead of continuing to execute and pas
|
||||
The default is
|
||||
.Cm no .
|
||||
.It Cm PubkeyAcceptedKeyTypes
|
||||
+The default is handled system-wide by
|
||||
+.Xr crypto-policies 7 .
|
||||
+To see the defaults and how to modify this default, see manual page
|
||||
+.Xr update-crypto-policies 8 .
|
||||
+.Pp
|
||||
Specifies the key types that will be used for public key authentication
|
||||
as a comma-separated list of patterns.
|
||||
If the specified list begins with a
|
||||
.Sq +
|
||||
-character, then the key types after it will be appended to the default
|
||||
-instead of replacing it.
|
||||
+character, then the key types after it will be appended to the built-in
|
||||
+openssh default instead of replacing it.
|
||||
If the specified list begins with a
|
||||
.Sq -
|
||||
character, then the specified key types (including wildcards) will be removed
|
||||
-from the default set instead of replacing them.
|
||||
+from the built-in openssh default set instead of replacing them.
|
||||
If the specified list begins with a
|
||||
.Sq ^
|
||||
character, then the specified key types will be placed at the head of the
|
||||
-default set.
|
||||
-The default for this option is:
|
||||
-.Bd -literal -offset 3n
|
||||
-ecdsa-sha2-nistp256-cert-v01@openssh.com,
|
||||
-ecdsa-sha2-nistp384-cert-v01@openssh.com,
|
||||
-ecdsa-sha2-nistp521-cert-v01@openssh.com,
|
||||
-sk-ecdsa-sha2-nistp256-cert-v01@openssh.com,
|
||||
-ssh-ed25519-cert-v01@openssh.com,
|
||||
-sk-ssh-ed25519-cert-v01@openssh.com,
|
||||
-rsa-sha2-512-cert-v01@openssh.com,
|
||||
-rsa-sha2-256-cert-v01@openssh.com,
|
||||
-ssh-rsa-cert-v01@openssh.com,
|
||||
-ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
|
||||
-sk-ecdsa-sha2-nistp256@openssh.com,
|
||||
-ssh-ed25519,sk-ssh-ed25519@openssh.com,
|
||||
-rsa-sha2-512,rsa-sha2-256,ssh-rsa
|
||||
-.Ed
|
||||
+built-in openssh default set.
|
||||
.Pp
|
||||
The list of available key types may also be obtained using
|
||||
.Qq ssh -Q PubkeyAcceptedKeyTypes .
|
||||
diff -up openssh-8.2p1/sshd_config.5.crypto-policies openssh-8.2p1/sshd_config.5
|
||||
--- openssh-8.2p1/sshd_config.5.crypto-policies 2020-03-26 14:40:44.530775355 +0100
|
||||
+++ openssh-8.2p1/sshd_config.5 2020-03-26 14:48:56.732468099 +0100
|
||||
@@ -375,16 +375,16 @@ If the argument is
|
||||
then no banner is displayed.
|
||||
By default, no banner is displayed.
|
||||
.It Cm CASignatureAlgorithms
|
||||
+The default is handled system-wide by
|
||||
+.Xr crypto-policies 7 .
|
||||
+To see the defaults and how to modify this default, see manual page
|
||||
+.Xr update-crypto-policies 8 .
|
||||
+.Pp
|
||||
Specifies which algorithms are allowed for signing of certificates
|
||||
by certificate authorities (CAs).
|
||||
-The default is:
|
||||
-.Bd -literal -offset indent
|
||||
-ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
|
||||
-ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
|
||||
-.Ed
|
||||
-.Pp
|
||||
Certificates signed using other algorithms will not be accepted for
|
||||
public key or host-based authentication.
|
||||
+.Pp
|
||||
.It Cm ChallengeResponseAuthentication
|
||||
Specifies whether challenge-response authentication is allowed (e.g. via
|
||||
PAM or through authentication styles supported in
|
||||
@@ -446,20 +446,25 @@ The default is
|
||||
indicating not to
|
||||
.Xr chroot 2 .
|
||||
.It Cm Ciphers
|
||||
+The default is handled system-wide by
|
||||
+.Xr crypto-policies 7 .
|
||||
+To see the defaults and how to modify this default, see manual page
|
||||
+.Xr update-crypto-policies 8 .
|
||||
+.Pp
|
||||
Specifies the ciphers allowed.
|
||||
Multiple ciphers must be comma-separated.
|
||||
If the specified list begins with a
|
||||
.Sq +
|
||||
-character, then the specified ciphers will be appended to the default set
|
||||
-instead of replacing them.
|
||||
+character, then the specified ciphers will be appended to the built-in
|
||||
+openssh default set instead of replacing them.
|
||||
If the specified list begins with a
|
||||
.Sq -
|
||||
character, then the specified ciphers (including wildcards) will be removed
|
||||
-from the default set instead of replacing them.
|
||||
+from the built-in openssh default set instead of replacing them.
|
||||
If the specified list begins with a
|
||||
.Sq ^
|
||||
character, then the specified ciphers will be placed at the head of the
|
||||
-default set.
|
||||
+built-in openssh default set.
|
||||
.Pp
|
||||
The supported ciphers are:
|
||||
.Pp
|
||||
@@ -486,13 +491,6 @@ aes256-gcm@openssh.com
|
||||
chacha20-poly1305@openssh.com
|
||||
.El
|
||||
.Pp
|
||||
-The default is:
|
||||
-.Bd -literal -offset indent
|
||||
-chacha20-poly1305@openssh.com,
|
||||
-aes128-ctr,aes192-ctr,aes256-ctr,
|
||||
-aes128-gcm@openssh.com,aes256-gcm@openssh.com
|
||||
-.Ed
|
||||
-.Pp
|
||||
The list of available ciphers may also be obtained using
|
||||
.Qq ssh -Q cipher .
|
||||
.It Cm ClientAliveCountMax
|
||||
@@ -681,22 +679,24 @@ For this to work
|
||||
.Cm GSSAPIKeyExchange
|
||||
needs to be enabled in the server and also used by the client.
|
||||
.It Cm GSSAPIKexAlgorithms
|
||||
+The default is handled system-wide by
|
||||
+.Xr crypto-policies 7 .
|
||||
+To see the defaults and how to modify this default, see manual page
|
||||
+.Xr update-crypto-policies 8 .
|
||||
+.Pp
|
||||
The list of key exchange algorithms that are accepted by GSSAPI
|
||||
key exchange. Possible values are
|
||||
.Bd -literal -offset 3n
|
||||
-gss-gex-sha1-,
|
||||
-gss-group1-sha1-,
|
||||
-gss-group14-sha1-,
|
||||
-gss-group14-sha256-,
|
||||
-gss-group16-sha512-,
|
||||
-gss-nistp256-sha256-,
|
||||
+gss-gex-sha1-
|
||||
+gss-group1-sha1-
|
||||
+gss-group14-sha1-
|
||||
+gss-group14-sha256-
|
||||
+gss-group16-sha512-
|
||||
+gss-nistp256-sha256-
|
||||
gss-curve25519-sha256-
|
||||
.Ed
|
||||
-.Pp
|
||||
-The default is
|
||||
-.Dq gss-group14-sha256-,gss-group16-sha512-,gss-nistp256-sha256-,
|
||||
-gss-curve25519-sha256-,gss-group14-sha1-,gss-gex-sha1- .
|
||||
This option only applies to connections using GSSAPI.
|
||||
+.Pp
|
||||
.It Cm HostbasedAcceptedKeyTypes
|
||||
Specifies the key types that will be accepted for hostbased authentication
|
||||
as a list of comma-separated patterns.
|
||||
@@ -793,25 +793,13 @@ is specified, the location of the socket
|
||||
.Ev SSH_AUTH_SOCK
|
||||
environment variable.
|
||||
.It Cm HostKeyAlgorithms
|
||||
+The default is handled system-wide by
|
||||
+.Xr crypto-policies 7 .
|
||||
+To see the defaults and how to modify this default, see manual page
|
||||
+.Xr update-crypto-policies 8 .
|
||||
+.Pp
|
||||
Specifies the host key algorithms
|
||||
that the server offers.
|
||||
-The default for this option is:
|
||||
-.Bd -literal -offset 3n
|
||||
-ecdsa-sha2-nistp256-cert-v01@openssh.com,
|
||||
-ecdsa-sha2-nistp384-cert-v01@openssh.com,
|
||||
-ecdsa-sha2-nistp521-cert-v01@openssh.com,
|
||||
-sk-ecdsa-sha2-nistp256-cert-v01@openssh.com,
|
||||
-ssh-ed25519-cert-v01@openssh.com,
|
||||
-sk-ssh-ed25519-cert-v01@openssh.com,
|
||||
-rsa-sha2-512-cert-v01@openssh.com,
|
||||
-rsa-sha2-256-cert-v01@openssh.com,
|
||||
-ssh-rsa-cert-v01@openssh.com,
|
||||
-ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
|
||||
-sk-ecdsa-sha2-nistp256@openssh.com,
|
||||
-ssh-ed25519,sk-ssh-ed25519@openssh.com,
|
||||
-rsa-sha2-512,rsa-sha2-256,ssh-rsa
|
||||
-.Ed
|
||||
-.Pp
|
||||
The list of available key types may also be obtained using
|
||||
.Qq ssh -Q HostKeyAlgorithms .
|
||||
.It Cm IgnoreRhosts
|
||||
@@ -943,20 +931,25 @@ Specifies whether to look at .k5login fi
|
||||
The default is
|
||||
.Cm yes .
|
||||
.It Cm KexAlgorithms
|
||||
+The default is handled system-wide by
|
||||
+.Xr crypto-policies 7 .
|
||||
+To see the defaults and how to modify this default, see manual page
|
||||
+.Xr update-crypto-policies 8 .
|
||||
+.Pp
|
||||
Specifies the available KEX (Key Exchange) algorithms.
|
||||
Multiple algorithms must be comma-separated.
|
||||
Alternately if the specified list begins with a
|
||||
.Sq +
|
||||
-character, then the specified methods will be appended to the default set
|
||||
-instead of replacing them.
|
||||
+character, then the specified methods will be appended to the built-in
|
||||
+openssh default set instead of replacing them.
|
||||
If the specified list begins with a
|
||||
.Sq -
|
||||
character, then the specified methods (including wildcards) will be removed
|
||||
-from the default set instead of replacing them.
|
||||
+from the built-in openssh default set instead of replacing them.
|
||||
If the specified list begins with a
|
||||
.Sq ^
|
||||
character, then the specified methods will be placed at the head of the
|
||||
-default set.
|
||||
+built-in openssh default set.
|
||||
The supported algorithms are:
|
||||
.Pp
|
||||
.Bl -item -compact -offset indent
|
||||
@@ -988,15 +981,6 @@ ecdh-sha2-nistp521
|
||||
sntrup4591761x25519-sha512@tinyssh.org
|
||||
.El
|
||||
.Pp
|
||||
-The default is:
|
||||
-.Bd -literal -offset indent
|
||||
-curve25519-sha256,curve25519-sha256@libssh.org,
|
||||
-ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,
|
||||
-diffie-hellman-group-exchange-sha256,
|
||||
-diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,
|
||||
-diffie-hellman-group14-sha256
|
||||
-.Ed
|
||||
-.Pp
|
||||
The list of available key exchange algorithms may also be obtained using
|
||||
.Qq ssh -Q KexAlgorithms .
|
||||
.It Cm ListenAddress
|
||||
@@ -1065,21 +1049,26 @@ DEBUG and DEBUG1 are equivalent.
|
||||
DEBUG2 and DEBUG3 each specify higher levels of debugging output.
|
||||
Logging with a DEBUG level violates the privacy of users and is not recommended.
|
||||
.It Cm MACs
|
||||
+The default is handled system-wide by
|
||||
+.Xr crypto-policies 7 .
|
||||
+To see the defaults and how to modify this default, see manual page
|
||||
+.Xr update-crypto-policies 8 .
|
||||
+.Pp
|
||||
Specifies the available MAC (message authentication code) algorithms.
|
||||
The MAC algorithm is used for data integrity protection.
|
||||
Multiple algorithms must be comma-separated.
|
||||
If the specified list begins with a
|
||||
.Sq +
|
||||
-character, then the specified algorithms will be appended to the default set
|
||||
-instead of replacing them.
|
||||
+character, then the specified algorithms will be appended to the built-in
|
||||
+openssh default set instead of replacing them.
|
||||
If the specified list begins with a
|
||||
.Sq -
|
||||
character, then the specified algorithms (including wildcards) will be removed
|
||||
-from the default set instead of replacing them.
|
||||
+from the built-in openssh default set instead of replacing them.
|
||||
If the specified list begins with a
|
||||
.Sq ^
|
||||
character, then the specified algorithms will be placed at the head of the
|
||||
-default set.
|
||||
+built-in openssh default set.
|
||||
.Pp
|
||||
The algorithms that contain
|
||||
.Qq -etm
|
||||
@@ -1122,15 +1111,6 @@ umac-64-etm@openssh.com
|
||||
umac-128-etm@openssh.com
|
||||
.El
|
||||
.Pp
|
||||
-The default is:
|
||||
-.Bd -literal -offset indent
|
||||
-umac-64-etm@openssh.com,umac-128-etm@openssh.com,
|
||||
-hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,
|
||||
-hmac-sha1-etm@openssh.com,
|
||||
-umac-64@openssh.com,umac-128@openssh.com,
|
||||
-hmac-sha2-256,hmac-sha2-512,hmac-sha1
|
||||
-.Ed
|
||||
-.Pp
|
||||
The list of available MAC algorithms may also be obtained using
|
||||
.Qq ssh -Q mac .
|
||||
.It Cm Match
|
||||
@@ -1480,36 +1460,25 @@ or equivalent.)
|
||||
The default is
|
||||
.Cm yes .
|
||||
.It Cm PubkeyAcceptedKeyTypes
|
||||
+The default is handled system-wide by
|
||||
+.Xr crypto-policies 7 .
|
||||
+To see the defaults and how to modify this default, see manual page
|
||||
+.Xr update-crypto-policies 8 .
|
||||
+.Pp
|
||||
Specifies the key types that will be accepted for public key authentication
|
||||
as a list of comma-separated patterns.
|
||||
Alternately if the specified list begins with a
|
||||
.Sq +
|
||||
-character, then the specified key types will be appended to the default set
|
||||
-instead of replacing them.
|
||||
+character, then the specified key types will be appended to the built-in
|
||||
+openssh default set instead of replacing them.
|
||||
If the specified list begins with a
|
||||
.Sq -
|
||||
character, then the specified key types (including wildcards) will be removed
|
||||
-from the default set instead of replacing them.
|
||||
+from the built-in openssh default set instead of replacing them.
|
||||
If the specified list begins with a
|
||||
.Sq ^
|
||||
character, then the specified key types will be placed at the head of the
|
||||
-default set.
|
||||
-The default for this option is:
|
||||
-.Bd -literal -offset 3n
|
||||
-ecdsa-sha2-nistp256-cert-v01@openssh.com,
|
||||
-ecdsa-sha2-nistp384-cert-v01@openssh.com,
|
||||
-ecdsa-sha2-nistp521-cert-v01@openssh.com,
|
||||
-sk-ecdsa-sha2-nistp256-cert-v01@openssh.com,
|
||||
-ssh-ed25519-cert-v01@openssh.com,
|
||||
-sk-ssh-ed25519-cert-v01@openssh.com,
|
||||
-rsa-sha2-512-cert-v01@openssh.com,
|
||||
-rsa-sha2-256-cert-v01@openssh.com,
|
||||
-ssh-rsa-cert-v01@openssh.com,
|
||||
-ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
|
||||
-sk-ecdsa-sha2-nistp256@openssh.com,
|
||||
-ssh-ed25519,sk-ssh-ed25519@openssh.com,
|
||||
-rsa-sha2-512,rsa-sha2-256,ssh-rsa
|
||||
-.Ed
|
||||
+built-in openssh default set.
|
||||
.Pp
|
||||
The list of available key types may also be obtained using
|
||||
.Qq ssh -Q PubkeyAcceptedKeyTypes .
|
File diff suppressed because it is too large
Load Diff
@ -1,720 +0,0 @@
|
||||
From ed7ec0cdf577ffbb0b15145340cf51596ca3eb89 Mon Sep 17 00:00:00 2001
|
||||
From: Jakub Jelen <jjelen@redhat.com>
|
||||
Date: Tue, 14 May 2019 10:45:45 +0200
|
||||
Subject: [PATCH] Use high-level OpenSSL API for signatures
|
||||
|
||||
---
|
||||
digest-openssl.c | 16 ++++
|
||||
digest.h | 6 ++
|
||||
ssh-dss.c | 65 ++++++++++------
|
||||
ssh-ecdsa.c | 69 ++++++++++-------
|
||||
ssh-rsa.c | 193 +++++++++--------------------------------------
|
||||
sshkey.c | 77 +++++++++++++++++++
|
||||
sshkey.h | 4 +
|
||||
7 files changed, 221 insertions(+), 209 deletions(-)
|
||||
|
||||
diff --git a/digest-openssl.c b/digest-openssl.c
|
||||
index da7ed72bc..6a21d8adb 100644
|
||||
--- a/digest-openssl.c
|
||||
+++ b/digest-openssl.c
|
||||
@@ -63,6 +63,22 @@ const struct ssh_digest digests[] = {
|
||||
{ -1, NULL, 0, NULL },
|
||||
};
|
||||
|
||||
+const EVP_MD *
|
||||
+ssh_digest_to_md(int digest_type)
|
||||
+{
|
||||
+ switch (digest_type) {
|
||||
+ case SSH_DIGEST_SHA1:
|
||||
+ return EVP_sha1();
|
||||
+ case SSH_DIGEST_SHA256:
|
||||
+ return EVP_sha256();
|
||||
+ case SSH_DIGEST_SHA384:
|
||||
+ return EVP_sha384();
|
||||
+ case SSH_DIGEST_SHA512:
|
||||
+ return EVP_sha512();
|
||||
+ }
|
||||
+ return NULL;
|
||||
+}
|
||||
+
|
||||
static const struct ssh_digest *
|
||||
ssh_digest_by_alg(int alg)
|
||||
{
|
||||
diff --git a/digest.h b/digest.h
|
||||
index 274574d0e..c7ceeb36f 100644
|
||||
--- a/digest.h
|
||||
+++ b/digest.h
|
||||
@@ -32,6 +32,12 @@
|
||||
struct sshbuf;
|
||||
struct ssh_digest_ctx;
|
||||
|
||||
+#ifdef WITH_OPENSSL
|
||||
+#include <openssl/evp.h>
|
||||
+/* Converts internal digest representation to the OpenSSL one */
|
||||
+const EVP_MD *ssh_digest_to_md(int digest_type);
|
||||
+#endif
|
||||
+
|
||||
/* Looks up a digest algorithm by name */
|
||||
int ssh_digest_alg_by_name(const char *name);
|
||||
|
||||
diff --git a/ssh-dss.c b/ssh-dss.c
|
||||
index a23c383dc..ea45e7275 100644
|
||||
--- a/ssh-dss.c
|
||||
+++ b/ssh-dss.c
|
||||
@@ -52,11 +52,15 @@ int
|
||||
ssh_dss_sign(const struct sshkey *key, u_char **sigp, size_t *lenp,
|
||||
const u_char *data, size_t datalen, u_int compat)
|
||||
{
|
||||
+ EVP_PKEY *pkey = NULL;
|
||||
DSA_SIG *sig = NULL;
|
||||
const BIGNUM *sig_r, *sig_s;
|
||||
- u_char digest[SSH_DIGEST_MAX_LENGTH], sigblob[SIGBLOB_LEN];
|
||||
- size_t rlen, slen, len, dlen = ssh_digest_bytes(SSH_DIGEST_SHA1);
|
||||
+ u_char sigblob[SIGBLOB_LEN];
|
||||
+ size_t rlen, slen;
|
||||
+ int len;
|
||||
struct sshbuf *b = NULL;
|
||||
+ u_char *sigb = NULL;
|
||||
+ const u_char *psig = NULL;
|
||||
int ret = SSH_ERR_INVALID_ARGUMENT;
|
||||
|
||||
if (lenp != NULL)
|
||||
@@ -67,17 +71,24 @@ ssh_dss_sign(const struct sshkey *key, u_char **sigp, size_t *lenp,
|
||||
if (key == NULL || key->dsa == NULL ||
|
||||
sshkey_type_plain(key->type) != KEY_DSA)
|
||||
return SSH_ERR_INVALID_ARGUMENT;
|
||||
- if (dlen == 0)
|
||||
- return SSH_ERR_INTERNAL_ERROR;
|
||||
|
||||
- if ((ret = ssh_digest_memory(SSH_DIGEST_SHA1, data, datalen,
|
||||
- digest, sizeof(digest))) != 0)
|
||||
+ if ((pkey = EVP_PKEY_new()) == NULL ||
|
||||
+ EVP_PKEY_set1_DSA(pkey, key->dsa) != 1)
|
||||
+ return SSH_ERR_ALLOC_FAIL;
|
||||
+ ret = sshkey_calculate_signature(pkey, SSH_DIGEST_SHA1, &sigb, &len,
|
||||
+ data, datalen);
|
||||
+ EVP_PKEY_free(pkey);
|
||||
+ if (ret < 0) {
|
||||
goto out;
|
||||
+ }
|
||||
|
||||
- if ((sig = DSA_do_sign(digest, dlen, key->dsa)) == NULL) {
|
||||
+ psig = sigb;
|
||||
+ if ((sig = d2i_DSA_SIG(NULL, &psig, len)) == NULL) {
|
||||
ret = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
goto out;
|
||||
}
|
||||
+ free(sigb);
|
||||
+ sigb = NULL;
|
||||
|
||||
DSA_SIG_get0(sig, &sig_r, &sig_s);
|
||||
rlen = BN_num_bytes(sig_r);
|
||||
@@ -110,7 +121,7 @@ ssh_dss_sign(const struct sshkey *key, u_char **sigp, size_t *lenp,
|
||||
*lenp = len;
|
||||
ret = 0;
|
||||
out:
|
||||
- explicit_bzero(digest, sizeof(digest));
|
||||
+ free(sigb);
|
||||
DSA_SIG_free(sig);
|
||||
sshbuf_free(b);
|
||||
return ret;
|
||||
@@ -121,20 +132,20 @@ ssh_dss_verify(const struct sshkey *key,
|
||||
const u_char *signature, size_t signaturelen,
|
||||
const u_char *data, size_t datalen, u_int compat)
|
||||
{
|
||||
+ EVP_PKEY *pkey = NULL;
|
||||
DSA_SIG *sig = NULL;
|
||||
BIGNUM *sig_r = NULL, *sig_s = NULL;
|
||||
- u_char digest[SSH_DIGEST_MAX_LENGTH], *sigblob = NULL;
|
||||
- size_t len, dlen = ssh_digest_bytes(SSH_DIGEST_SHA1);
|
||||
+ u_char *sigblob = NULL;
|
||||
+ size_t len, slen;
|
||||
int ret = SSH_ERR_INTERNAL_ERROR;
|
||||
struct sshbuf *b = NULL;
|
||||
char *ktype = NULL;
|
||||
+ u_char *sigb = NULL, *psig = NULL;
|
||||
|
||||
if (key == NULL || key->dsa == NULL ||
|
||||
sshkey_type_plain(key->type) != KEY_DSA ||
|
||||
signature == NULL || signaturelen == 0)
|
||||
return SSH_ERR_INVALID_ARGUMENT;
|
||||
- if (dlen == 0)
|
||||
- return SSH_ERR_INTERNAL_ERROR;
|
||||
|
||||
/* fetch signature */
|
||||
if ((b = sshbuf_from(signature, signaturelen)) == NULL)
|
||||
@@ -176,25 +187,31 @@ ssh_dss_verify(const struct sshkey *key,
|
||||
}
|
||||
sig_r = sig_s = NULL; /* transferred */
|
||||
|
||||
- /* sha1 the data */
|
||||
- if ((ret = ssh_digest_memory(SSH_DIGEST_SHA1, data, datalen,
|
||||
- digest, sizeof(digest))) != 0)
|
||||
+ if ((slen = i2d_DSA_SIG(sig, NULL)) == 0) {
|
||||
+ ret = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
goto out;
|
||||
-
|
||||
- switch (DSA_do_verify(digest, dlen, sig, key->dsa)) {
|
||||
- case 1:
|
||||
- ret = 0;
|
||||
- break;
|
||||
- case 0:
|
||||
- ret = SSH_ERR_SIGNATURE_INVALID;
|
||||
+ }
|
||||
+ if ((sigb = malloc(slen)) == NULL) {
|
||||
+ ret = SSH_ERR_ALLOC_FAIL;
|
||||
goto out;
|
||||
- default:
|
||||
+ }
|
||||
+ psig = sigb;
|
||||
+ if ((slen = i2d_DSA_SIG(sig, &psig)) == 0) {
|
||||
ret = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
goto out;
|
||||
}
|
||||
|
||||
+ if ((pkey = EVP_PKEY_new()) == NULL ||
|
||||
+ EVP_PKEY_set1_DSA(pkey, key->dsa) != 1) {
|
||||
+ ret = SSH_ERR_ALLOC_FAIL;
|
||||
+ goto out;
|
||||
+ }
|
||||
+ ret = sshkey_verify_signature(pkey, SSH_DIGEST_SHA1, data, datalen,
|
||||
+ sigb, slen);
|
||||
+ EVP_PKEY_free(pkey);
|
||||
+
|
||||
out:
|
||||
- explicit_bzero(digest, sizeof(digest));
|
||||
+ free(sigb);
|
||||
DSA_SIG_free(sig);
|
||||
BN_clear_free(sig_r);
|
||||
BN_clear_free(sig_s);
|
||||
diff --git a/ssh-ecdsa.c b/ssh-ecdsa.c
|
||||
index 599c7199d..b036796e8 100644
|
||||
--- a/ssh-ecdsa.c
|
||||
+++ b/ssh-ecdsa.c
|
||||
@@ -50,11 +50,13 @@ int
|
||||
ssh_ecdsa_sign(const struct sshkey *key, u_char **sigp, size_t *lenp,
|
||||
const u_char *data, size_t datalen, u_int compat)
|
||||
{
|
||||
+ EVP_PKEY *pkey = NULL;
|
||||
ECDSA_SIG *sig = NULL;
|
||||
+ unsigned char *sigb = NULL;
|
||||
+ const unsigned char *psig;
|
||||
const BIGNUM *sig_r, *sig_s;
|
||||
int hash_alg;
|
||||
- u_char digest[SSH_DIGEST_MAX_LENGTH];
|
||||
- size_t len, dlen;
|
||||
+ int len;
|
||||
struct sshbuf *b = NULL, *bb = NULL;
|
||||
int ret = SSH_ERR_INTERNAL_ERROR;
|
||||
|
||||
@@ -67,18 +69,24 @@ ssh_ecdsa_sign(const struct sshkey *key, u_char **sigp, size_t *lenp,
|
||||
sshkey_type_plain(key->type) != KEY_ECDSA)
|
||||
return SSH_ERR_INVALID_ARGUMENT;
|
||||
|
||||
- if ((hash_alg = sshkey_ec_nid_to_hash_alg(key->ecdsa_nid)) == -1 ||
|
||||
- (dlen = ssh_digest_bytes(hash_alg)) == 0)
|
||||
+ if ((hash_alg = sshkey_ec_nid_to_hash_alg(key->ecdsa_nid)) == -1)
|
||||
return SSH_ERR_INTERNAL_ERROR;
|
||||
- if ((ret = ssh_digest_memory(hash_alg, data, datalen,
|
||||
- digest, sizeof(digest))) != 0)
|
||||
+
|
||||
+ if ((pkey = EVP_PKEY_new()) == NULL ||
|
||||
+ EVP_PKEY_set1_EC_KEY(pkey, key->ecdsa) != 1)
|
||||
+ return SSH_ERR_ALLOC_FAIL;
|
||||
+ ret = sshkey_calculate_signature(pkey, hash_alg, &sigb, &len, data,
|
||||
+ datalen);
|
||||
+ EVP_PKEY_free(pkey);
|
||||
+ if (ret < 0) {
|
||||
goto out;
|
||||
+ }
|
||||
|
||||
- if ((sig = ECDSA_do_sign(digest, dlen, key->ecdsa)) == NULL) {
|
||||
+ psig = sigb;
|
||||
+ if ((sig = d2i_ECDSA_SIG(NULL, &psig, len)) == NULL) {
|
||||
ret = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
goto out;
|
||||
}
|
||||
-
|
||||
if ((bb = sshbuf_new()) == NULL || (b = sshbuf_new()) == NULL) {
|
||||
ret = SSH_ERR_ALLOC_FAIL;
|
||||
goto out;
|
||||
@@ -102,7 +110,7 @@ ssh_ecdsa_sign(const struct sshkey *key, u_char **sigp, size_t *lenp,
|
||||
*lenp = len;
|
||||
ret = 0;
|
||||
out:
|
||||
- explicit_bzero(digest, sizeof(digest));
|
||||
+ free(sigb);
|
||||
sshbuf_free(b);
|
||||
sshbuf_free(bb);
|
||||
ECDSA_SIG_free(sig);
|
||||
@@ -115,22 +123,21 @@ ssh_ecdsa_verify(const struct sshkey *key,
|
||||
const u_char *signature, size_t signaturelen,
|
||||
const u_char *data, size_t datalen, u_int compat)
|
||||
{
|
||||
+ EVP_PKEY *pkey = NULL;
|
||||
ECDSA_SIG *sig = NULL;
|
||||
BIGNUM *sig_r = NULL, *sig_s = NULL;
|
||||
- int hash_alg;
|
||||
- u_char digest[SSH_DIGEST_MAX_LENGTH];
|
||||
- size_t dlen;
|
||||
+ int hash_alg, len;
|
||||
int ret = SSH_ERR_INTERNAL_ERROR;
|
||||
struct sshbuf *b = NULL, *sigbuf = NULL;
|
||||
char *ktype = NULL;
|
||||
+ unsigned char *sigb = NULL, *psig = NULL;
|
||||
|
||||
if (key == NULL || key->ecdsa == NULL ||
|
||||
sshkey_type_plain(key->type) != KEY_ECDSA ||
|
||||
signature == NULL || signaturelen == 0)
|
||||
return SSH_ERR_INVALID_ARGUMENT;
|
||||
|
||||
- if ((hash_alg = sshkey_ec_nid_to_hash_alg(key->ecdsa_nid)) == -1 ||
|
||||
- (dlen = ssh_digest_bytes(hash_alg)) == 0)
|
||||
+ if ((hash_alg = sshkey_ec_nid_to_hash_alg(key->ecdsa_nid)) == -1)
|
||||
return SSH_ERR_INTERNAL_ERROR;
|
||||
|
||||
/* fetch signature */
|
||||
@@ -166,28 +173,36 @@ ssh_ecdsa_verify(const struct sshkey *key,
|
||||
}
|
||||
sig_r = sig_s = NULL; /* transferred */
|
||||
|
||||
- if (sshbuf_len(sigbuf) != 0) {
|
||||
- ret = SSH_ERR_UNEXPECTED_TRAILING_DATA;
|
||||
+ /* Figure out the length */
|
||||
+ if ((len = i2d_ECDSA_SIG(sig, NULL)) == 0) {
|
||||
+ ret = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
+ goto out;
|
||||
+ }
|
||||
+ if ((sigb = malloc(len)) == NULL) {
|
||||
+ ret = SSH_ERR_ALLOC_FAIL;
|
||||
goto out;
|
||||
}
|
||||
- if ((ret = ssh_digest_memory(hash_alg, data, datalen,
|
||||
- digest, sizeof(digest))) != 0)
|
||||
+ psig = sigb;
|
||||
+ if ((len = i2d_ECDSA_SIG(sig, &psig)) == 0) {
|
||||
+ ret = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
goto out;
|
||||
+ }
|
||||
|
||||
- switch (ECDSA_do_verify(digest, dlen, sig, key->ecdsa)) {
|
||||
- case 1:
|
||||
- ret = 0;
|
||||
- break;
|
||||
- case 0:
|
||||
- ret = SSH_ERR_SIGNATURE_INVALID;
|
||||
+ if (sshbuf_len(sigbuf) != 0) {
|
||||
+ ret = SSH_ERR_UNEXPECTED_TRAILING_DATA;
|
||||
goto out;
|
||||
- default:
|
||||
- ret = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
+ }
|
||||
+
|
||||
+ if ((pkey = EVP_PKEY_new()) == NULL ||
|
||||
+ EVP_PKEY_set1_EC_KEY(pkey, key->ecdsa) != 1) {
|
||||
+ ret = SSH_ERR_ALLOC_FAIL;
|
||||
goto out;
|
||||
}
|
||||
+ ret = sshkey_verify_signature(pkey, hash_alg, data, datalen, sigb, len);
|
||||
+ EVP_PKEY_free(pkey);
|
||||
|
||||
out:
|
||||
- explicit_bzero(digest, sizeof(digest));
|
||||
+ free(sigb);
|
||||
sshbuf_free(sigbuf);
|
||||
sshbuf_free(b);
|
||||
ECDSA_SIG_free(sig);
|
||||
diff --git a/ssh-rsa.c b/ssh-rsa.c
|
||||
index 9b14f9a9a..8ef3a6aca 100644
|
||||
--- a/ssh-rsa.c
|
||||
+++ b/ssh-rsa.c
|
||||
@@ -37,7 +37,7 @@
|
||||
|
||||
#include "openbsd-compat/openssl-compat.h"
|
||||
|
||||
-static int openssh_RSA_verify(int, u_char *, size_t, u_char *, size_t, RSA *);
|
||||
+static int openssh_RSA_verify(int, const u_char *, size_t, u_char *, size_t, EVP_PKEY *);
|
||||
|
||||
static const char *
|
||||
rsa_hash_alg_ident(int hash_alg)
|
||||
@@ -90,21 +90,6 @@ rsa_hash_id_from_keyname(const char *alg)
|
||||
return -1;
|
||||
}
|
||||
|
||||
-static int
|
||||
-rsa_hash_alg_nid(int type)
|
||||
-{
|
||||
- switch (type) {
|
||||
- case SSH_DIGEST_SHA1:
|
||||
- return NID_sha1;
|
||||
- case SSH_DIGEST_SHA256:
|
||||
- return NID_sha256;
|
||||
- case SSH_DIGEST_SHA512:
|
||||
- return NID_sha512;
|
||||
- default:
|
||||
- return -1;
|
||||
- }
|
||||
-}
|
||||
-
|
||||
int
|
||||
ssh_rsa_complete_crt_parameters(struct sshkey *key, const BIGNUM *iqmp)
|
||||
{
|
||||
@@ -164,11 +149,10 @@ int
|
||||
ssh_rsa_sign(const struct sshkey *key, u_char **sigp, size_t *lenp,
|
||||
const u_char *data, size_t datalen, const char *alg_ident)
|
||||
{
|
||||
- const BIGNUM *rsa_n;
|
||||
- u_char digest[SSH_DIGEST_MAX_LENGTH], *sig = NULL;
|
||||
- size_t slen = 0;
|
||||
- u_int dlen, len;
|
||||
- int nid, hash_alg, ret = SSH_ERR_INTERNAL_ERROR;
|
||||
+ EVP_PKEY *pkey = NULL;
|
||||
+ u_char *sig = NULL;
|
||||
+ int len, slen = 0;
|
||||
+ int hash_alg, ret = SSH_ERR_INTERNAL_ERROR;
|
||||
struct sshbuf *b = NULL;
|
||||
|
||||
if (lenp != NULL)
|
||||
@@ -180,33 +164,24 @@ ssh_rsa_sign(const struct sshkey *key, u_char **sigp, size_t *lenp,
|
||||
hash_alg = SSH_DIGEST_SHA1;
|
||||
else
|
||||
hash_alg = rsa_hash_id_from_keyname(alg_ident);
|
||||
+
|
||||
if (key == NULL || key->rsa == NULL || hash_alg == -1 ||
|
||||
sshkey_type_plain(key->type) != KEY_RSA)
|
||||
return SSH_ERR_INVALID_ARGUMENT;
|
||||
- RSA_get0_key(key->rsa, &rsa_n, NULL, NULL);
|
||||
- if (BN_num_bits(rsa_n) < SSH_RSA_MINIMUM_MODULUS_SIZE)
|
||||
- return SSH_ERR_KEY_LENGTH;
|
||||
slen = RSA_size(key->rsa);
|
||||
- if (slen <= 0 || slen > SSHBUF_MAX_BIGNUM)
|
||||
- return SSH_ERR_INVALID_ARGUMENT;
|
||||
-
|
||||
- /* hash the data */
|
||||
- nid = rsa_hash_alg_nid(hash_alg);
|
||||
- if ((dlen = ssh_digest_bytes(hash_alg)) == 0)
|
||||
- return SSH_ERR_INTERNAL_ERROR;
|
||||
- if ((ret = ssh_digest_memory(hash_alg, data, datalen,
|
||||
- digest, sizeof(digest))) != 0)
|
||||
- goto out;
|
||||
+ if (RSA_bits(key->rsa) < SSH_RSA_MINIMUM_MODULUS_SIZE)
|
||||
+ return SSH_ERR_KEY_LENGTH;
|
||||
|
||||
- if ((sig = malloc(slen)) == NULL) {
|
||||
- ret = SSH_ERR_ALLOC_FAIL;
|
||||
+ if ((pkey = EVP_PKEY_new()) == NULL ||
|
||||
+ EVP_PKEY_set1_RSA(pkey, key->rsa) != 1)
|
||||
+ return SSH_ERR_ALLOC_FAIL;
|
||||
+ ret = sshkey_calculate_signature(pkey, hash_alg, &sig, &len, data,
|
||||
+ datalen);
|
||||
+ EVP_PKEY_free(pkey);
|
||||
+ if (ret < 0) {
|
||||
goto out;
|
||||
}
|
||||
|
||||
- if (RSA_sign(nid, digest, dlen, sig, &len, key->rsa) != 1) {
|
||||
- ret = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
- goto out;
|
||||
- }
|
||||
if (len < slen) {
|
||||
size_t diff = slen - len;
|
||||
memmove(sig + diff, sig, len);
|
||||
@@ -215,6 +190,7 @@ ssh_rsa_sign(const struct sshkey *key, u_char **sigp, size_t *lenp,
|
||||
ret = SSH_ERR_INTERNAL_ERROR;
|
||||
goto out;
|
||||
}
|
||||
+
|
||||
/* encode signature */
|
||||
if ((b = sshbuf_new()) == NULL) {
|
||||
ret = SSH_ERR_ALLOC_FAIL;
|
||||
@@ -235,7 +211,6 @@ ssh_rsa_sign(const struct sshkey *key, u_char **sigp, size_t *lenp,
|
||||
*lenp = len;
|
||||
ret = 0;
|
||||
out:
|
||||
- explicit_bzero(digest, sizeof(digest));
|
||||
freezero(sig, slen);
|
||||
sshbuf_free(b);
|
||||
return ret;
|
||||
@@ -246,10 +221,10 @@ ssh_rsa_verify(const struct sshkey *key,
|
||||
const u_char *sig, size_t siglen, const u_char *data, size_t datalen,
|
||||
const char *alg)
|
||||
{
|
||||
- const BIGNUM *rsa_n;
|
||||
+ EVP_PKEY *pkey = NULL;
|
||||
char *sigtype = NULL;
|
||||
int hash_alg, want_alg, ret = SSH_ERR_INTERNAL_ERROR;
|
||||
- size_t len = 0, diff, modlen, dlen;
|
||||
+ size_t len = 0, diff, modlen;
|
||||
struct sshbuf *b = NULL;
|
||||
u_char digest[SSH_DIGEST_MAX_LENGTH], *osigblob, *sigblob = NULL;
|
||||
|
||||
@@ -257,8 +232,7 @@ ssh_rsa_verify(const struct sshkey *key,
|
||||
sshkey_type_plain(key->type) != KEY_RSA ||
|
||||
sig == NULL || siglen == 0)
|
||||
return SSH_ERR_INVALID_ARGUMENT;
|
||||
- RSA_get0_key(key->rsa, &rsa_n, NULL, NULL);
|
||||
- if (BN_num_bits(rsa_n) < SSH_RSA_MINIMUM_MODULUS_SIZE)
|
||||
+ if (RSA_bits(key->rsa) < SSH_RSA_MINIMUM_MODULUS_SIZE)
|
||||
return SSH_ERR_KEY_LENGTH;
|
||||
|
||||
if ((b = sshbuf_from(sig, siglen)) == NULL)
|
||||
@@ -310,16 +284,15 @@ ssh_rsa_verify(const struct sshkey *key,
|
||||
explicit_bzero(sigblob, diff);
|
||||
len = modlen;
|
||||
}
|
||||
- if ((dlen = ssh_digest_bytes(hash_alg)) == 0) {
|
||||
- ret = SSH_ERR_INTERNAL_ERROR;
|
||||
+
|
||||
+ if ((pkey = EVP_PKEY_new()) == NULL ||
|
||||
+ EVP_PKEY_set1_RSA(pkey, key->rsa) != 1) {
|
||||
+ ret = SSH_ERR_ALLOC_FAIL;
|
||||
goto out;
|
||||
}
|
||||
- if ((ret = ssh_digest_memory(hash_alg, data, datalen,
|
||||
- digest, sizeof(digest))) != 0)
|
||||
- goto out;
|
||||
+ ret = openssh_RSA_verify(hash_alg, data, datalen, sigblob, len, pkey);
|
||||
+ EVP_PKEY_free(pkey);
|
||||
|
||||
- ret = openssh_RSA_verify(hash_alg, digest, dlen, sigblob, len,
|
||||
- key->rsa);
|
||||
out:
|
||||
freezero(sigblob, len);
|
||||
free(sigtype);
|
||||
@@ -328,122 +301,26 @@ ssh_rsa_verify(const struct sshkey *key,
|
||||
return ret;
|
||||
}
|
||||
|
||||
-/*
|
||||
- * See:
|
||||
- * http://www.rsasecurity.com/rsalabs/pkcs/pkcs-1/
|
||||
- * ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-1/pkcs-1v2-1.asn
|
||||
- */
|
||||
-
|
||||
-/*
|
||||
- * id-sha1 OBJECT IDENTIFIER ::= { iso(1) identified-organization(3)
|
||||
- * oiw(14) secsig(3) algorithms(2) 26 }
|
||||
- */
|
||||
-static const u_char id_sha1[] = {
|
||||
- 0x30, 0x21, /* type Sequence, length 0x21 (33) */
|
||||
- 0x30, 0x09, /* type Sequence, length 0x09 */
|
||||
- 0x06, 0x05, /* type OID, length 0x05 */
|
||||
- 0x2b, 0x0e, 0x03, 0x02, 0x1a, /* id-sha1 OID */
|
||||
- 0x05, 0x00, /* NULL */
|
||||
- 0x04, 0x14 /* Octet string, length 0x14 (20), followed by sha1 hash */
|
||||
-};
|
||||
-
|
||||
-/*
|
||||
- * See http://csrc.nist.gov/groups/ST/crypto_apps_infra/csor/algorithms.html
|
||||
- * id-sha256 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840)
|
||||
- * organization(1) gov(101) csor(3) nistAlgorithm(4) hashAlgs(2)
|
||||
- * id-sha256(1) }
|
||||
- */
|
||||
-static const u_char id_sha256[] = {
|
||||
- 0x30, 0x31, /* type Sequence, length 0x31 (49) */
|
||||
- 0x30, 0x0d, /* type Sequence, length 0x0d (13) */
|
||||
- 0x06, 0x09, /* type OID, length 0x09 */
|
||||
- 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, /* id-sha256 */
|
||||
- 0x05, 0x00, /* NULL */
|
||||
- 0x04, 0x20 /* Octet string, length 0x20 (32), followed by sha256 hash */
|
||||
-};
|
||||
-
|
||||
-/*
|
||||
- * See http://csrc.nist.gov/groups/ST/crypto_apps_infra/csor/algorithms.html
|
||||
- * id-sha512 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840)
|
||||
- * organization(1) gov(101) csor(3) nistAlgorithm(4) hashAlgs(2)
|
||||
- * id-sha256(3) }
|
||||
- */
|
||||
-static const u_char id_sha512[] = {
|
||||
- 0x30, 0x51, /* type Sequence, length 0x51 (81) */
|
||||
- 0x30, 0x0d, /* type Sequence, length 0x0d (13) */
|
||||
- 0x06, 0x09, /* type OID, length 0x09 */
|
||||
- 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03, /* id-sha512 */
|
||||
- 0x05, 0x00, /* NULL */
|
||||
- 0x04, 0x40 /* Octet string, length 0x40 (64), followed by sha512 hash */
|
||||
-};
|
||||
-
|
||||
static int
|
||||
-rsa_hash_alg_oid(int hash_alg, const u_char **oidp, size_t *oidlenp)
|
||||
+openssh_RSA_verify(int hash_alg, const u_char *data, size_t datalen,
|
||||
+ u_char *sigbuf, size_t siglen, EVP_PKEY *pkey)
|
||||
{
|
||||
- switch (hash_alg) {
|
||||
- case SSH_DIGEST_SHA1:
|
||||
- *oidp = id_sha1;
|
||||
- *oidlenp = sizeof(id_sha1);
|
||||
- break;
|
||||
- case SSH_DIGEST_SHA256:
|
||||
- *oidp = id_sha256;
|
||||
- *oidlenp = sizeof(id_sha256);
|
||||
- break;
|
||||
- case SSH_DIGEST_SHA512:
|
||||
- *oidp = id_sha512;
|
||||
- *oidlenp = sizeof(id_sha512);
|
||||
- break;
|
||||
- default:
|
||||
- return SSH_ERR_INVALID_ARGUMENT;
|
||||
- }
|
||||
- return 0;
|
||||
-}
|
||||
+ size_t rsasize = 0;
|
||||
+ const RSA *rsa;
|
||||
+ int ret;
|
||||
|
||||
-static int
|
||||
-openssh_RSA_verify(int hash_alg, u_char *hash, size_t hashlen,
|
||||
- u_char *sigbuf, size_t siglen, RSA *rsa)
|
||||
-{
|
||||
- size_t rsasize = 0, oidlen = 0, hlen = 0;
|
||||
- int ret, len, oidmatch, hashmatch;
|
||||
- const u_char *oid = NULL;
|
||||
- u_char *decrypted = NULL;
|
||||
-
|
||||
- if ((ret = rsa_hash_alg_oid(hash_alg, &oid, &oidlen)) != 0)
|
||||
- return ret;
|
||||
- ret = SSH_ERR_INTERNAL_ERROR;
|
||||
- hlen = ssh_digest_bytes(hash_alg);
|
||||
- if (hashlen != hlen) {
|
||||
- ret = SSH_ERR_INVALID_ARGUMENT;
|
||||
- goto done;
|
||||
- }
|
||||
+ rsa = EVP_PKEY_get0_RSA(pkey);
|
||||
rsasize = RSA_size(rsa);
|
||||
if (rsasize <= 0 || rsasize > SSHBUF_MAX_BIGNUM ||
|
||||
siglen == 0 || siglen > rsasize) {
|
||||
ret = SSH_ERR_INVALID_ARGUMENT;
|
||||
goto done;
|
||||
}
|
||||
- if ((decrypted = malloc(rsasize)) == NULL) {
|
||||
- ret = SSH_ERR_ALLOC_FAIL;
|
||||
- goto done;
|
||||
- }
|
||||
- if ((len = RSA_public_decrypt(siglen, sigbuf, decrypted, rsa,
|
||||
- RSA_PKCS1_PADDING)) < 0) {
|
||||
- ret = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
- goto done;
|
||||
- }
|
||||
- if (len < 0 || (size_t)len != hlen + oidlen) {
|
||||
- ret = SSH_ERR_INVALID_FORMAT;
|
||||
- goto done;
|
||||
- }
|
||||
- oidmatch = timingsafe_bcmp(decrypted, oid, oidlen) == 0;
|
||||
- hashmatch = timingsafe_bcmp(decrypted + oidlen, hash, hlen) == 0;
|
||||
- if (!oidmatch || !hashmatch) {
|
||||
- ret = SSH_ERR_SIGNATURE_INVALID;
|
||||
- goto done;
|
||||
- }
|
||||
- ret = 0;
|
||||
+
|
||||
+ ret = sshkey_verify_signature(pkey, hash_alg, data, datalen,
|
||||
+ sigbuf, siglen);
|
||||
+
|
||||
done:
|
||||
- freezero(decrypted, rsasize);
|
||||
return ret;
|
||||
}
|
||||
#endif /* WITH_OPENSSL */
|
||||
diff --git a/sshkey.c b/sshkey.c
|
||||
index ad1957762..b95ed0b10 100644
|
||||
--- a/sshkey.c
|
||||
+++ b/sshkey.c
|
||||
@@ -358,6 +358,83 @@ sshkey_type_plain(int type)
|
||||
}
|
||||
|
||||
#ifdef WITH_OPENSSL
|
||||
+int
|
||||
+sshkey_calculate_signature(EVP_PKEY *pkey, int hash_alg, u_char **sigp,
|
||||
+ int *lenp, const u_char *data, size_t datalen)
|
||||
+{
|
||||
+ EVP_MD_CTX *ctx = NULL;
|
||||
+ u_char *sig = NULL;
|
||||
+ int ret, slen, len;
|
||||
+
|
||||
+ if (sigp == NULL || lenp == NULL) {
|
||||
+ return SSH_ERR_INVALID_ARGUMENT;
|
||||
+ }
|
||||
+
|
||||
+ slen = EVP_PKEY_size(pkey);
|
||||
+ if (slen <= 0 || slen > SSHBUF_MAX_BIGNUM)
|
||||
+ return SSH_ERR_INVALID_ARGUMENT;
|
||||
+
|
||||
+ len = slen;
|
||||
+ if ((sig = malloc(slen)) == NULL) {
|
||||
+ return SSH_ERR_ALLOC_FAIL;
|
||||
+ }
|
||||
+
|
||||
+ if ((ctx = EVP_MD_CTX_new()) == NULL) {
|
||||
+ ret = SSH_ERR_ALLOC_FAIL;
|
||||
+ goto error;
|
||||
+ }
|
||||
+ if (EVP_SignInit_ex(ctx, ssh_digest_to_md(hash_alg), NULL) <= 0 ||
|
||||
+ EVP_SignUpdate(ctx, data, datalen) <= 0 ||
|
||||
+ EVP_SignFinal(ctx, sig, &len, pkey) <= 0) {
|
||||
+ ret = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
+ goto error;
|
||||
+ }
|
||||
+
|
||||
+ *sigp = sig;
|
||||
+ *lenp = len;
|
||||
+ /* Now owned by the caller */
|
||||
+ sig = NULL;
|
||||
+ ret = 0;
|
||||
+
|
||||
+error:
|
||||
+ EVP_MD_CTX_free(ctx);
|
||||
+ free(sig);
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
+int
|
||||
+sshkey_verify_signature(EVP_PKEY *pkey, int hash_alg, const u_char *data,
|
||||
+ size_t datalen, u_char *sigbuf, int siglen)
|
||||
+{
|
||||
+ EVP_MD_CTX *ctx = NULL;
|
||||
+ int ret;
|
||||
+
|
||||
+ if ((ctx = EVP_MD_CTX_new()) == NULL) {
|
||||
+ return SSH_ERR_ALLOC_FAIL;
|
||||
+ }
|
||||
+ if (EVP_VerifyInit_ex(ctx, ssh_digest_to_md(hash_alg), NULL) <= 0 ||
|
||||
+ EVP_VerifyUpdate(ctx, data, datalen) <= 0) {
|
||||
+ ret = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
+ goto done;
|
||||
+ }
|
||||
+ ret = EVP_VerifyFinal(ctx, sigbuf, siglen, pkey);
|
||||
+ switch (ret) {
|
||||
+ case 1:
|
||||
+ ret = 0;
|
||||
+ break;
|
||||
+ case 0:
|
||||
+ ret = SSH_ERR_SIGNATURE_INVALID;
|
||||
+ break;
|
||||
+ default:
|
||||
+ ret = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
+ break;
|
||||
+ }
|
||||
+
|
||||
+done:
|
||||
+ EVP_MD_CTX_free(ctx);
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
/* XXX: these are really begging for a table-driven approach */
|
||||
int
|
||||
sshkey_curve_name_to_nid(const char *name)
|
||||
diff --git a/sshkey.h b/sshkey.h
|
||||
index a91e60436..270901a87 100644
|
||||
--- a/sshkey.h
|
||||
+++ b/sshkey.h
|
||||
@@ -179,6 +179,10 @@ const char *sshkey_ssh_name(const struct sshkey *);
|
||||
const char *sshkey_ssh_name_plain(const struct sshkey *);
|
||||
int sshkey_names_valid2(const char *, int);
|
||||
char *sshkey_alg_list(int, int, int, char);
|
||||
+int sshkey_calculate_signature(EVP_PKEY*, int, u_char **,
|
||||
+ int *, const u_char *, size_t);
|
||||
+int sshkey_verify_signature(EVP_PKEY *, int, const u_char *,
|
||||
+ size_t, u_char *, int);
|
||||
|
||||
int sshkey_from_blob(const u_char *, size_t, struct sshkey **);
|
||||
int sshkey_fromb(struct sshbuf *, struct sshkey **);
|
||||
|
@ -1,137 +0,0 @@
|
||||
commit 2c3ef499bfffce3cfd315edeebf202850ba4e00a
|
||||
Author: Jakub Jelen <jjelen@redhat.com>
|
||||
Date: Tue Apr 16 15:35:18 2019 +0200
|
||||
|
||||
Use the new OpenSSL KDF
|
||||
|
||||
diff --git a/configure.ac b/configure.ac
|
||||
index 2a455e4e..e01c3d43 100644
|
||||
--- a/configure.ac
|
||||
+++ b/configure.ac
|
||||
@@ -2712,6 +2712,7 @@ if test "x$openssl" = "xyes" ; then
|
||||
HMAC_CTX_init \
|
||||
RSA_generate_key_ex \
|
||||
RSA_get_default_method \
|
||||
+ EVP_KDF_CTX_new_id \
|
||||
])
|
||||
|
||||
# OpenSSL_add_all_algorithms may be a macro.
|
||||
diff --git a/kex.c b/kex.c
|
||||
index b6f041f4..1fbce2bb 100644
|
||||
--- a/kex.c
|
||||
+++ b/kex.c
|
||||
@@ -38,6 +38,9 @@
|
||||
#ifdef WITH_OPENSSL
|
||||
#include <openssl/crypto.h>
|
||||
#include <openssl/dh.h>
|
||||
+# ifdef HAVE_EVP_KDF_CTX_NEW_ID
|
||||
+# include <openssl/kdf.h>
|
||||
+# endif
|
||||
#endif
|
||||
|
||||
#include "ssh.h"
|
||||
@@ -942,6 +945,95 @@ kex_choose_conf(struct ssh *ssh)
|
||||
return r;
|
||||
}
|
||||
|
||||
+#ifdef HAVE_EVP_KDF_CTX_NEW_ID
|
||||
+static const EVP_MD *
|
||||
+digest_to_md(int digest_type)
|
||||
+{
|
||||
+ switch (digest_type) {
|
||||
+ case SSH_DIGEST_SHA1:
|
||||
+ return EVP_sha1();
|
||||
+ case SSH_DIGEST_SHA256:
|
||||
+ return EVP_sha256();
|
||||
+ case SSH_DIGEST_SHA384:
|
||||
+ return EVP_sha384();
|
||||
+ case SSH_DIGEST_SHA512:
|
||||
+ return EVP_sha512();
|
||||
+ }
|
||||
+ return NULL;
|
||||
+}
|
||||
+
|
||||
+static int
|
||||
+derive_key(struct ssh *ssh, int id, u_int need, u_char *hash, u_int hashlen,
|
||||
+ const struct sshbuf *shared_secret, u_char **keyp)
|
||||
+{
|
||||
+ struct kex *kex = ssh->kex;
|
||||
+ EVP_KDF_CTX *ctx = NULL;
|
||||
+ u_char *key = NULL;
|
||||
+ int r, key_len;
|
||||
+
|
||||
+ if ((key_len = ssh_digest_bytes(kex->hash_alg)) == 0)
|
||||
+ return SSH_ERR_INVALID_ARGUMENT;
|
||||
+ key_len = ROUNDUP(need, key_len);
|
||||
+ if ((key = calloc(1, key_len)) == NULL) {
|
||||
+ r = SSH_ERR_ALLOC_FAIL;
|
||||
+ goto out;
|
||||
+ }
|
||||
+
|
||||
+ ctx = EVP_KDF_CTX_new_id(EVP_KDF_SSHKDF);
|
||||
+ if (!ctx) {
|
||||
+ r = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
+ goto out;
|
||||
+ }
|
||||
+
|
||||
+ r = EVP_KDF_ctrl(ctx, EVP_KDF_CTRL_SET_MD, digest_to_md(kex->hash_alg));
|
||||
+ if (r != 1) {
|
||||
+ r = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
+ goto out;
|
||||
+ }
|
||||
+ r = EVP_KDF_ctrl(ctx, EVP_KDF_CTRL_SET_KEY,
|
||||
+ sshbuf_ptr(shared_secret), sshbuf_len(shared_secret));
|
||||
+ if (r != 1) {
|
||||
+ r = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
+ goto out;
|
||||
+ }
|
||||
+ r = EVP_KDF_ctrl(ctx, EVP_KDF_CTRL_SET_SSHKDF_XCGHASH, hash, hashlen);
|
||||
+ if (r != 1) {
|
||||
+ r = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
+ goto out;
|
||||
+ }
|
||||
+ r = EVP_KDF_ctrl(ctx, EVP_KDF_CTRL_SET_SSHKDF_TYPE, id);
|
||||
+ if (r != 1) {
|
||||
+ r = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
+ goto out;
|
||||
+ }
|
||||
+ r = EVP_KDF_ctrl(ctx, EVP_KDF_CTRL_SET_SSHKDF_SESSION_ID,
|
||||
+ kex->session_id, kex->session_id_len);
|
||||
+ if (r != 1) {
|
||||
+ r = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
+ goto out;
|
||||
+ }
|
||||
+ r = EVP_KDF_derive(ctx, key, key_len);
|
||||
+ if (r != 1) {
|
||||
+ r = SSH_ERR_LIBCRYPTO_ERROR;
|
||||
+ goto out;
|
||||
+ }
|
||||
+#ifdef DEBUG_KEX
|
||||
+ fprintf(stderr, "key '%c'== ", id);
|
||||
+ dump_digest("key", key, key_len);
|
||||
+#endif
|
||||
+ *keyp = key;
|
||||
+ key = NULL;
|
||||
+ r = 0;
|
||||
+
|
||||
+out:
|
||||
+ free (key);
|
||||
+ EVP_KDF_CTX_free(ctx);
|
||||
+ if (r < 0) {
|
||||
+ return r;
|
||||
+ }
|
||||
+ return 0;
|
||||
+}
|
||||
+#else
|
||||
static int
|
||||
derive_key(struct ssh *ssh, int id, u_int need, u_char *hash, u_int hashlen,
|
||||
const struct sshbuf *shared_secret, u_char **keyp)
|
||||
@@ -1004,6 +1096,7 @@ derive_key(struct ssh *ssh, int id, u_int need, u_char *hash, u_int hashlen,
|
||||
ssh_digest_free(hashctx);
|
||||
return r;
|
||||
}
|
||||
+#endif /* HAVE_OPENSSL_EVP_KDF_CTX_NEW_ID */
|
||||
|
||||
#define NKEYS 6
|
||||
int
|
||||
|
File diff suppressed because it is too large
Load Diff
@ -1,40 +0,0 @@
|
||||
diff --git a/regress/misc/sk-dummy/sk-dummy.c b/regress/misc/sk-dummy/sk-dummy.c
|
||||
index dca158de..afdcb1d2 100644
|
||||
--- a/regress/misc/sk-dummy/sk-dummy.c
|
||||
+++ b/regress/misc/sk-dummy/sk-dummy.c
|
||||
@@ -71,7 +71,7 @@ skdebug(const char *func, const char *fmt, ...)
|
||||
#endif
|
||||
}
|
||||
|
||||
-uint32_t
|
||||
+uint32_t __attribute__((visibility("default")))
|
||||
sk_api_version(void)
|
||||
{
|
||||
return SSH_SK_VERSION_MAJOR;
|
||||
@@ -220,7 +220,7 @@ check_options(struct sk_option **options)
|
||||
return 0;
|
||||
}
|
||||
|
||||
-int
|
||||
+int __attribute__((visibility("default")))
|
||||
sk_enroll(uint32_t alg, const uint8_t *challenge, size_t challenge_len,
|
||||
const char *application, uint8_t flags, const char *pin,
|
||||
struct sk_option **options, struct sk_enroll_response **enroll_response)
|
||||
@@ -467,7 +467,7 @@ sig_ed25519(const uint8_t *message, size_t message_len,
|
||||
return ret;
|
||||
}
|
||||
|
||||
-int
|
||||
+int __attribute__((visibility("default")))
|
||||
sk_sign(uint32_t alg, const uint8_t *data, size_t datalen,
|
||||
const char *application, const uint8_t *key_handle, size_t key_handle_len,
|
||||
uint8_t flags, const char *pin, struct sk_option **options,
|
||||
@@ -518,7 +518,7 @@ sk_sign(uint32_t alg, const uint8_t *message, size_t message_len,
|
||||
return ret;
|
||||
}
|
||||
|
||||
-int
|
||||
+int __attribute__((visibility("default")))
|
||||
sk_load_resident_keys(const char *pin, struct sk_option **options,
|
||||
struct sk_resident_key ***rks, size_t *nrks)
|
||||
{
|
@ -1,30 +0,0 @@
|
||||
diff --git a/channels.c b/channels.c
|
||||
--- a/channels.c
|
||||
+++ b/channels.c
|
||||
@@ -3933,16 +3933,26 @@ x11_create_display_inet(int x11_display_
|
||||
if (ai->ai_family == AF_INET6)
|
||||
sock_set_v6only(sock);
|
||||
if (x11_use_localhost)
|
||||
set_reuseaddr(sock);
|
||||
if (bind(sock, ai->ai_addr, ai->ai_addrlen) == -1) {
|
||||
debug2("%s: bind port %d: %.100s", __func__,
|
||||
port, strerror(errno));
|
||||
close(sock);
|
||||
+
|
||||
+ /* do not remove successfully opened
|
||||
+ * sockets if the request failed because
|
||||
+ * the protocol IPv4/6 is not available
|
||||
+ * (e.g. IPv6 may be disabled while being
|
||||
+ * supported)
|
||||
+ */
|
||||
+ if (EADDRNOTAVAIL == errno)
|
||||
+ continue;
|
||||
+
|
||||
for (n = 0; n < num_socks; n++)
|
||||
close(socks[n]);
|
||||
num_socks = 0;
|
||||
break;
|
||||
}
|
||||
socks[num_socks++] = sock;
|
||||
if (num_socks == NUM_SOCKS)
|
||||
break;
|
@ -1,57 +0,0 @@
|
||||
--- compat.h.orig 2020-10-05 10:09:02.953505129 -0700
|
||||
+++ compat.h 2020-10-05 10:10:17.587733113 -0700
|
||||
@@ -34,7 +34,7 @@
|
||||
|
||||
#define SSH_BUG_UTF8TTYMODE 0x00000001
|
||||
#define SSH_BUG_SIGTYPE 0x00000002
|
||||
-/* #define unused 0x00000004 */
|
||||
+#define SSH_BUG_SIGTYPE74 0x00000004
|
||||
/* #define unused 0x00000008 */
|
||||
#define SSH_OLD_SESSIONID 0x00000010
|
||||
/* #define unused 0x00000020 */
|
||||
--- compat.c.orig 2020-10-05 10:25:02.088720562 -0700
|
||||
+++ compat.c 2020-10-05 10:13:11.637282492 -0700
|
||||
@@ -65,11 +65,12 @@
|
||||
{ "OpenSSH_6.5*,"
|
||||
"OpenSSH_6.6*", SSH_NEW_OPENSSH|SSH_BUG_CURVE25519PAD|
|
||||
SSH_BUG_SIGTYPE},
|
||||
+ { "OpenSSH_7.4*", SSH_NEW_OPENSSH|SSH_BUG_SIGTYPE|
|
||||
+ SSH_BUG_SIGTYPE74},
|
||||
{ "OpenSSH_7.0*,"
|
||||
"OpenSSH_7.1*,"
|
||||
"OpenSSH_7.2*,"
|
||||
"OpenSSH_7.3*,"
|
||||
- "OpenSSH_7.4*,"
|
||||
"OpenSSH_7.5*,"
|
||||
"OpenSSH_7.6*,"
|
||||
"OpenSSH_7.7*", SSH_NEW_OPENSSH|SSH_BUG_SIGTYPE},
|
||||
--- sshconnect2.c.orig 2020-09-26 07:26:37.618010545 -0700
|
||||
+++ sshconnect2.c 2020-10-05 10:47:22.116315148 -0700
|
||||
@@ -1305,6 +1305,26 @@
|
||||
break;
|
||||
}
|
||||
free(oallowed);
|
||||
+ /*
|
||||
+ * OpenSSH 7.4 supports SHA2 sig types, but fails to indicate its
|
||||
+ * support. For that release, check the local policy against the
|
||||
+ * SHA2 signature types.
|
||||
+ */
|
||||
+ if (alg == NULL &&
|
||||
+ (key->type == KEY_RSA && (datafellows & SSH_BUG_SIGTYPE74))) {
|
||||
+ oallowed = allowed = xstrdup(options.pubkey_key_types);
|
||||
+ while ((cp = strsep(&allowed, ",")) != NULL) {
|
||||
+ if (sshkey_type_from_name(cp) != key->type)
|
||||
+ continue;
|
||||
+ tmp = match_list(sshkey_sigalg_by_name(cp), "rsa-sha2-256,rsa-sha2-512", NULL);
|
||||
+ if (tmp != NULL)
|
||||
+ alg = xstrdup(cp);
|
||||
+ free(tmp);
|
||||
+ if (alg != NULL)
|
||||
+ break;
|
||||
+ }
|
||||
+ free(oallowed);
|
||||
+ }
|
||||
return alg;
|
||||
}
|
||||
|
||||
|
@ -1,14 +0,0 @@
|
||||
diff --git a/sandbox-seccomp-filter.c b/sandbox-seccomp-filter.c
|
||||
index e0768c06..5065ae7e 100644
|
||||
--- a/sandbox-seccomp-filter.c
|
||||
+++ b/sandbox-seccomp-filter.c
|
||||
@@ -267,6 +267,9 @@ static const struct sock_filter preauth_insns[] = {
|
||||
#ifdef __NR_pselect6
|
||||
SC_ALLOW(__NR_pselect6),
|
||||
#endif
|
||||
+#ifdef __NR_pselect6_time64
|
||||
+ SC_ALLOW(__NR_pselect6_time64),
|
||||
+#endif
|
||||
#ifdef __NR_read
|
||||
SC_ALLOW(__NR_read),
|
||||
#endif
|
@ -1,130 +0,0 @@
|
||||
From 66f16e5425eb881570e82bfef7baeac2e7accc0a Mon Sep 17 00:00:00 2001
|
||||
From: Oleg <Fallmay@users.noreply.github.com>
|
||||
Date: Thu, 1 Oct 2020 12:09:08 +0300
|
||||
Subject: [PATCH] Fix `EOF: command not found` error in ssh-copy-id
|
||||
|
||||
---
|
||||
contrib/ssh-copy-id | 3 ++-
|
||||
1 file changed, 2 insertions(+), 1 deletion(-)
|
||||
|
||||
diff --git a/contrib/ssh-copy-id b/contrib/ssh-copy-id
|
||||
index 392f64f94..a76907717 100644
|
||||
--- a/contrib/ssh-copy-id
|
||||
+++ b/contrib/ssh-copy-id
|
||||
@@ -247,7 +247,7 @@ installkeys_sh() {
|
||||
# the -z `tail ...` checks for a trailing newline. The echo adds one if was missing
|
||||
# the cat adds the keys we're getting via STDIN
|
||||
# and if available restorecon is used to restore the SELinux context
|
||||
- INSTALLKEYS_SH=$(tr '\t\n' ' ' <<-EOF)
|
||||
+ INSTALLKEYS_SH=$(tr '\t\n' ' ' <<-EOF
|
||||
cd;
|
||||
umask 077;
|
||||
mkdir -p $(dirname "${AUTH_KEY_FILE}") &&
|
||||
@@ -258,6 +258,7 @@ installkeys_sh() {
|
||||
restorecon -F .ssh ${AUTH_KEY_FILE};
|
||||
fi
|
||||
EOF
|
||||
+ )
|
||||
|
||||
# to defend against quirky remote shells: use 'exec sh -c' to get POSIX;
|
||||
printf "exec sh -c '%s'" "${INSTALLKEYS_SH}"
|
||||
|
||||
From de59a431cdec833e3ec15691dd950402b4c052cf Mon Sep 17 00:00:00 2001
|
||||
From: Philip Hands <phil@hands.com>
|
||||
Date: Sat, 3 Oct 2020 00:20:07 +0200
|
||||
Subject: [PATCH] un-nest $() to make ksh cheerful
|
||||
|
||||
---
|
||||
ssh-copy-id | 3 ++-
|
||||
1 file changed, 2 insertions(+), 1 deletion(-)
|
||||
|
||||
From 02ac2c3c3db5478a440dfb1b90d15f686f2cbfc6 Mon Sep 17 00:00:00 2001
|
||||
From: Philip Hands <phil@hands.com>
|
||||
Date: Fri, 2 Oct 2020 21:30:10 +0200
|
||||
Subject: [PATCH] ksh doesn't grok 'local'
|
||||
|
||||
and AFAICT it's not actually doing anything useful in the code, so let's
|
||||
see how things go without it.
|
||||
---
|
||||
ssh-copy-id | 11 +++++------
|
||||
1 file changed, 5 insertions(+), 6 deletions(-)
|
||||
|
||||
diff --git a/contrib/ssh-copy-id b/contrib/ssh-copy-id
|
||||
index a769077..11c9463 100755
|
||||
--- a/contrib/ssh-copy-id
|
||||
+++ b/contrib/ssh-copy-id
|
||||
@@ -76,7 +76,7 @@ quote() {
|
||||
}
|
||||
|
||||
use_id_file() {
|
||||
- local L_ID_FILE="$1"
|
||||
+ L_ID_FILE="$1"
|
||||
|
||||
if [ -z "$L_ID_FILE" ] ; then
|
||||
printf '%s: ERROR: no ID file found\n' "$0"
|
||||
@@ -94,7 +94,7 @@ use_id_file() {
|
||||
# check that the files are readable
|
||||
for f in "$PUB_ID_FILE" ${PRIV_ID_FILE:+"$PRIV_ID_FILE"} ; do
|
||||
ErrMSG=$( { : < "$f" ; } 2>&1 ) || {
|
||||
- local L_PRIVMSG=""
|
||||
+ L_PRIVMSG=""
|
||||
[ "$f" = "$PRIV_ID_FILE" ] && L_PRIVMSG=" (to install the contents of '$PUB_ID_FILE' anyway, look at the -f option)"
|
||||
printf "\\n%s: ERROR: failed to open ID file '%s': %s\\n" "$0" "$f" "$(printf '%s\n%s\n' "$ErrMSG" "$L_PRIVMSG" | sed -e 's/.*: *//')"
|
||||
exit 1
|
||||
@@ -169,7 +169,7 @@ fi
|
||||
# populate_new_ids() uses several global variables ($USER_HOST, $SSH_OPTS ...)
|
||||
# and has the side effect of setting $NEW_IDS
|
||||
populate_new_ids() {
|
||||
- local L_SUCCESS="$1"
|
||||
+ L_SUCCESS="$1"
|
||||
|
||||
# shellcheck disable=SC2086
|
||||
if [ "$FORCED" ] ; then
|
||||
@@ -181,13 +181,12 @@ populate_new_ids() {
|
||||
eval set -- "$SSH_OPTS"
|
||||
|
||||
umask 0177
|
||||
- local L_TMP_ID_FILE
|
||||
L_TMP_ID_FILE=$(mktemp ~/.ssh/ssh-copy-id_id.XXXXXXXXXX)
|
||||
if test $? -ne 0 || test "x$L_TMP_ID_FILE" = "x" ; then
|
||||
printf '%s: ERROR: mktemp failed\n' "$0" >&2
|
||||
exit 1
|
||||
fi
|
||||
- local L_CLEANUP="rm -f \"$L_TMP_ID_FILE\" \"${L_TMP_ID_FILE}.stderr\""
|
||||
+ L_CLEANUP="rm -f \"$L_TMP_ID_FILE\" \"${L_TMP_ID_FILE}.stderr\""
|
||||
# shellcheck disable=SC2064
|
||||
trap "$L_CLEANUP" EXIT TERM INT QUIT
|
||||
printf '%s: INFO: attempting to log in with the new key(s), to filter out any that are already installed\n' "$0" >&2
|
||||
@@ -237,7 +236,7 @@ populate_new_ids() {
|
||||
# produce a one-liner to add the keys to remote authorized_keys file
|
||||
# optionally takes an alternative path for authorized_keys
|
||||
installkeys_sh() {
|
||||
- local AUTH_KEY_FILE=${1:-.ssh/authorized_keys}
|
||||
+ AUTH_KEY_FILE=${1:-.ssh/authorized_keys}
|
||||
|
||||
# In setting INSTALLKEYS_SH:
|
||||
# the tr puts it all on one line (to placate tcsh)
|
||||
--
|
||||
|
||||
diff --git a/contrib/ssh-copy-id b/contrib/ssh-copy-id
|
||||
index 11c9463..ee3f637 100755
|
||||
--- a/contrib/ssh-copy-id
|
||||
+++ b/contrib/ssh-copy-id
|
||||
@@ -237,6 +237,7 @@ populate_new_ids() {
|
||||
# optionally takes an alternative path for authorized_keys
|
||||
installkeys_sh() {
|
||||
AUTH_KEY_FILE=${1:-.ssh/authorized_keys}
|
||||
+ AUTH_KEY_DIR=$(dirname "${AUTH_KEY_FILE}")
|
||||
|
||||
# In setting INSTALLKEYS_SH:
|
||||
# the tr puts it all on one line (to placate tcsh)
|
||||
@@ -249,7 +250,7 @@ installkeys_sh() {
|
||||
INSTALLKEYS_SH=$(tr '\t\n' ' ' <<-EOF
|
||||
cd;
|
||||
umask 077;
|
||||
- mkdir -p $(dirname "${AUTH_KEY_FILE}") &&
|
||||
+ mkdir -p "${AUTH_KEY_DIR}" &&
|
||||
{ [ -z \`tail -1c ${AUTH_KEY_FILE} 2>/dev/null\` ] || echo >> ${AUTH_KEY_FILE} || exit 1; } &&
|
||||
cat >> ${AUTH_KEY_FILE} ||
|
||||
exit 1;
|
||||
--
|
19
openssh-nukeacss.sh
Executable file
19
openssh-nukeacss.sh
Executable file
@ -0,0 +1,19 @@
|
||||
#!/bin/sh
|
||||
#
|
||||
# Remove the ACSS implementation from OpenSSH, and disable its use so that the
|
||||
# rest of the package can still be built.
|
||||
#
|
||||
> acss.c
|
||||
patch -sp0 << EOF
|
||||
--- cipher.c.orig 2005-07-17 09:02:10.000000000 +0200
|
||||
+++ cipher.c 2005-09-06 14:52:06.000000000 +0200
|
||||
@@ -45,6 +45,8 @@
|
||||
|
||||
/* compatibility with old or broken OpenSSL versions */
|
||||
#include "openbsd-compat/openssl-compat.h"
|
||||
+#undef USE_CIPHER_ACSS
|
||||
+#define EVP_acss NULL
|
||||
|
||||
extern const EVP_CIPHER *evp_ssh1_bf(void);
|
||||
extern const EVP_CIPHER *evp_ssh1_3des(void);
|
||||
EOF
|
@ -1,21 +0,0 @@
|
||||
# I do not know about any better place where to put profile files
|
||||
addFilter(r'openssh-askpass.x86_64: W: non-conffile-in-etc /etc/profile.d/gnome-ssh-askpass.c?sh')
|
||||
|
||||
# The ssh-keysign is not supposed to have standard permissions
|
||||
addFilter(r'openssh.x86_64: E: non-standard-executable-perm /usr/libexec/openssh/ssh-keysign 2555')
|
||||
addFilter(r'openssh.x86_64: E: setgid-binary /usr/libexec/openssh/ssh-keysign ssh_keys 2555')
|
||||
addFilter(r'openssh.x86_64: W: non-standard-gid /usr/libexec/openssh/ssh-keysign ssh_keys')
|
||||
|
||||
# The -cavs subpackage is internal without documentation
|
||||
# The -askpass is not intended to be used directly so it is missing documentation
|
||||
addFilter(r'openssh-(askpass|cavs).x86_64: W: no-documentation')
|
||||
|
||||
# sshd config and sysconfig is not supposed to be world readable
|
||||
addFilter(r'non-readable /etc/(ssh/sshd_config|sysconfig/sshd)')
|
||||
|
||||
# The /var/empty/sshd is supposed to have the given permissions
|
||||
addFilter(r'non-standard-dir-perm /var/empty/sshd 711')
|
||||
addFilter(r'non-standard-dir-in-var empty')
|
||||
|
||||
# Spelling false-positives
|
||||
addFilter(r'spelling-error (Summary\(en_US\)|.* en_US) (mls|su|sudo|rlogin|rsh|untrusted) ')
|
2100
openssh.spec
2100
openssh.spec
File diff suppressed because it is too large
Load Diff
@ -1,36 +0,0 @@
|
||||
authfd.c
|
||||
authfd.h
|
||||
atomicio.c
|
||||
atomicio.h
|
||||
bufaux.c
|
||||
bufbn.c
|
||||
buffer.h
|
||||
buffer.c
|
||||
cleanup.c
|
||||
cipher.h
|
||||
compat.h
|
||||
entropy.c
|
||||
entropy.h
|
||||
fatal.c
|
||||
includes.h
|
||||
kex.h
|
||||
key.c
|
||||
key.h
|
||||
log.c
|
||||
log.h
|
||||
match.h
|
||||
misc.c
|
||||
misc.h
|
||||
pathnames.h
|
||||
platform.h
|
||||
rsa.h
|
||||
ssh-dss.c
|
||||
ssh-rsa.c
|
||||
ssh.h
|
||||
ssh2.h
|
||||
uidswap.c
|
||||
uidswap.h
|
||||
uuencode.c
|
||||
uuencode.h
|
||||
xmalloc.c
|
||||
xmalloc.h
|
@ -1,992 +0,0 @@
|
||||
diff -up openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/get_command_line.c.psaa-compat openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/get_command_line.c
|
||||
--- openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/get_command_line.c.psaa-compat 2019-07-08 18:36:13.000000000 +0200
|
||||
+++ openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/get_command_line.c 2020-09-23 10:52:16.424001475 +0200
|
||||
@@ -27,6 +27,7 @@
|
||||
* or implied, of Jamie Beverly.
|
||||
*/
|
||||
|
||||
+#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <errno.h>
|
||||
#include <string.h>
|
||||
@@ -66,8 +67,8 @@ proc_pid_cmdline(char *** inargv)
|
||||
case EOF:
|
||||
case '\0':
|
||||
if (len > 0) {
|
||||
- argv = pamsshagentauth_xrealloc(argv, count + 1, sizeof(*argv));
|
||||
- argv[count] = pamsshagentauth_xcalloc(len + 1, sizeof(*argv[count]));
|
||||
+ argv = xreallocarray(argv, count + 1, sizeof(*argv));
|
||||
+ argv[count] = xcalloc(len + 1, sizeof(*argv[count]));
|
||||
strncpy(argv[count++], argbuf, len);
|
||||
memset(argbuf, '\0', MAX_LEN_PER_CMDLINE_ARG + 1);
|
||||
len = 0;
|
||||
@@ -106,9 +107,9 @@ pamsshagentauth_free_command_line(char *
|
||||
{
|
||||
size_t i;
|
||||
for (i = 0; i < n_args; i++)
|
||||
- pamsshagentauth_xfree(argv[i]);
|
||||
+ free(argv[i]);
|
||||
|
||||
- pamsshagentauth_xfree(argv);
|
||||
+ free(argv);
|
||||
return;
|
||||
}
|
||||
|
||||
diff -up openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/identity.h.psaa-compat openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/identity.h
|
||||
--- openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/identity.h.psaa-compat 2019-07-08 18:36:13.000000000 +0200
|
||||
+++ openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/identity.h 2020-09-23 10:52:16.424001475 +0200
|
||||
@@ -30,8 +30,8 @@
|
||||
#include "openbsd-compat/sys-queue.h"
|
||||
#include "xmalloc.h"
|
||||
#include "log.h"
|
||||
-#include "buffer.h"
|
||||
-#include "key.h"
|
||||
+#include "sshbuf.h"
|
||||
+#include "sshkey.h"
|
||||
#include "authfd.h"
|
||||
#include <stdio.h>
|
||||
|
||||
@@ -41,7 +41,7 @@ typedef struct idlist Idlist;
|
||||
struct identity {
|
||||
TAILQ_ENTRY(identity) next;
|
||||
AuthenticationConnection *ac; /* set if agent supports key */
|
||||
- Key *key; /* public/private key */
|
||||
+ struct sshkey *key; /* public/private key */
|
||||
char *filename; /* comment for agent-only keys */
|
||||
int tried;
|
||||
int isprivate; /* key points to the private key */
|
||||
diff -up openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/iterate_ssh_agent_keys.c.psaa-compat openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/iterate_ssh_agent_keys.c
|
||||
--- openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/iterate_ssh_agent_keys.c.psaa-compat 2020-09-23 10:52:16.421001434 +0200
|
||||
+++ openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/iterate_ssh_agent_keys.c 2020-09-23 10:52:16.424001475 +0200
|
||||
@@ -36,8 +36,8 @@
|
||||
#include "openbsd-compat/sys-queue.h"
|
||||
#include "xmalloc.h"
|
||||
#include "log.h"
|
||||
-#include "buffer.h"
|
||||
-#include "key.h"
|
||||
+#include "sshbuf.h"
|
||||
+#include "sshkey.h"
|
||||
#include "authfd.h"
|
||||
#include <stdio.h>
|
||||
#include <openssl/evp.h>
|
||||
@@ -58,6 +58,8 @@
|
||||
#include "get_command_line.h"
|
||||
extern char **environ;
|
||||
|
||||
+#define PAM_SSH_AGENT_AUTH_REQUESTv1 101
|
||||
+
|
||||
/*
|
||||
* Added by Jamie Beverly, ensure socket fd points to a socket owned by the user
|
||||
* A cursory check is done, but to avoid race conditions, it is necessary
|
||||
@@ -77,7 +79,7 @@ log_action(char ** action, size_t count)
|
||||
if (count == 0)
|
||||
return NULL;
|
||||
|
||||
- buf = pamsshagentauth_xcalloc((count * MAX_LEN_PER_CMDLINE_ARG) + (count * 3), sizeof(*buf));
|
||||
+ buf = xcalloc((count * MAX_LEN_PER_CMDLINE_ARG) + (count * 3), sizeof(*buf));
|
||||
for (i = 0; i < count; i++) {
|
||||
strcat(buf, (i > 0) ? " '" : "'");
|
||||
strncat(buf, action[i], MAX_LEN_PER_CMDLINE_ARG);
|
||||
@@ -87,21 +89,25 @@ log_action(char ** action, size_t count)
|
||||
}
|
||||
|
||||
void
|
||||
-agent_action(Buffer *buf, char ** action, size_t count)
|
||||
+agent_action(struct sshbuf **buf, char ** action, size_t count)
|
||||
{
|
||||
size_t i;
|
||||
- pamsshagentauth_buffer_init(buf);
|
||||
+ int r;
|
||||
|
||||
- pamsshagentauth_buffer_put_int(buf, count);
|
||||
+ if ((*buf = sshbuf_new()) == NULL)
|
||||
+ fatal("%s: sshbuf_new failed", __func__);
|
||||
+ if ((r = sshbuf_put_u32(*buf, count)) != 0)
|
||||
+ fatal("%s: buffer error: %s", __func__, ssh_err(r));
|
||||
|
||||
for (i = 0; i < count; i++) {
|
||||
- pamsshagentauth_buffer_put_cstring(buf, action[i]);
|
||||
+ if ((r = sshbuf_put_cstring(*buf, action[i])) != 0)
|
||||
+ fatal("%s: buffer error: %s", __func__, ssh_err(r));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
-void
|
||||
-pamsshagentauth_session_id2_gen(Buffer * session_id2, const char * user,
|
||||
+static void
|
||||
+pamsshagentauth_session_id2_gen(struct sshbuf ** session_id2, const char * user,
|
||||
const char * ruser, const char * servicename)
|
||||
{
|
||||
u_char *cookie = NULL;
|
||||
@@ -114,22 +120,23 @@ pamsshagentauth_session_id2_gen(Buffer *
|
||||
char ** reported_argv = NULL;
|
||||
size_t count = 0;
|
||||
char * action_logbuf = NULL;
|
||||
- Buffer action_agentbuf;
|
||||
+ struct sshbuf *action_agentbuf = NULL;
|
||||
uint8_t free_logbuf = 0;
|
||||
char * retc;
|
||||
int32_t reti;
|
||||
+ int r;
|
||||
|
||||
- rnd = pamsshagentauth_arc4random();
|
||||
+ rnd = arc4random();
|
||||
cookie_len = ((uint8_t) rnd);
|
||||
while (cookie_len < 16) {
|
||||
cookie_len += 16; /* Add 16 bytes to the size to ensure that while the length is random, the length is always reasonable; ticket #18 */
|
||||
}
|
||||
|
||||
- cookie = pamsshagentauth_xcalloc(1,cookie_len);
|
||||
+ cookie = xcalloc(1, cookie_len);
|
||||
|
||||
for (i = 0; i < cookie_len; i++) {
|
||||
if (i % 4 == 0) {
|
||||
- rnd = pamsshagentauth_arc4random();
|
||||
+ rnd = arc4random();
|
||||
}
|
||||
cookie[i] = (u_char) rnd;
|
||||
rnd >>= 8;
|
||||
@@ -144,7 +151,8 @@ pamsshagentauth_session_id2_gen(Buffer *
|
||||
}
|
||||
else {
|
||||
action_logbuf = "unknown on this platform";
|
||||
- pamsshagentauth_buffer_init(&action_agentbuf); /* stays empty, means unavailable */
|
||||
+ if ((action_agentbuf = sshbuf_new()) == NULL) /* stays empty, means unavailable */
|
||||
+ fatal("%s: sshbuf_new failed", __func__);
|
||||
}
|
||||
|
||||
/*
|
||||
@@ -161,35 +169,39 @@ pamsshagentauth_session_id2_gen(Buffer *
|
||||
retc = getcwd(pwd, sizeof(pwd) - 1);
|
||||
time(&ts);
|
||||
|
||||
- pamsshagentauth_buffer_init(session_id2);
|
||||
+ if ((*session_id2 = sshbuf_new()) == NULL)
|
||||
+ fatal("%s: sshbuf_new failed", __func__);
|
||||
|
||||
- pamsshagentauth_buffer_put_int(session_id2, PAM_SSH_AGENT_AUTH_REQUESTv1);
|
||||
- /* pamsshagentauth_debug3("cookie: %s", pamsshagentauth_tohex(cookie, cookie_len)); */
|
||||
- pamsshagentauth_buffer_put_string(session_id2, cookie, cookie_len);
|
||||
- /* pamsshagentauth_debug3("user: %s", user); */
|
||||
- pamsshagentauth_buffer_put_cstring(session_id2, user);
|
||||
- /* pamsshagentauth_debug3("ruser: %s", ruser); */
|
||||
- pamsshagentauth_buffer_put_cstring(session_id2, ruser);
|
||||
- /* pamsshagentauth_debug3("servicename: %s", servicename); */
|
||||
- pamsshagentauth_buffer_put_cstring(session_id2, servicename);
|
||||
- /* pamsshagentauth_debug3("pwd: %s", pwd); */
|
||||
- if(retc)
|
||||
- pamsshagentauth_buffer_put_cstring(session_id2, pwd);
|
||||
- else
|
||||
- pamsshagentauth_buffer_put_cstring(session_id2, "");
|
||||
- /* pamsshagentauth_debug3("action: %s", action_logbuf); */
|
||||
- pamsshagentauth_buffer_put_string(session_id2, action_agentbuf.buf + action_agentbuf.offset, action_agentbuf.end - action_agentbuf.offset);
|
||||
+ if ((r = sshbuf_put_u32(*session_id2, PAM_SSH_AGENT_AUTH_REQUESTv1)) != 0 ||
|
||||
+ (r = sshbuf_put_string(*session_id2, cookie, cookie_len)) != 0 ||
|
||||
+ (r = sshbuf_put_cstring(*session_id2, user)) != 0 ||
|
||||
+ (r = sshbuf_put_cstring(*session_id2, ruser)) != 0 ||
|
||||
+ (r = sshbuf_put_cstring(*session_id2, servicename)) != 0)
|
||||
+ fatal("%s: buffer error: %s", __func__, ssh_err(r));
|
||||
+ if (retc) {
|
||||
+ if ((r = sshbuf_put_cstring(*session_id2, pwd)) != 0)
|
||||
+ fatal("%s: buffer error: %s", __func__, ssh_err(r));
|
||||
+ } else {
|
||||
+ if ((r = sshbuf_put_cstring(*session_id2, "")) != 0)
|
||||
+ fatal("%s: buffer error: %s", __func__, ssh_err(r));
|
||||
+ }
|
||||
+ if ((r = sshbuf_put_stringb(*session_id2, action_agentbuf)) != 0)
|
||||
+ fatal("%s: buffer error: %s", __func__, ssh_err(r));
|
||||
if (free_logbuf) {
|
||||
- pamsshagentauth_xfree(action_logbuf);
|
||||
- pamsshagentauth_buffer_free(&action_agentbuf);
|
||||
+ free(action_logbuf);
|
||||
+ sshbuf_free(action_agentbuf);
|
||||
+ }
|
||||
+ /* debug3("hostname: %s", hostname); */
|
||||
+ if (reti >= 0) {
|
||||
+ if ((r = sshbuf_put_cstring(*session_id2, hostname)) != 0)
|
||||
+ fatal("%s: buffer error: %s", __func__, ssh_err(r));
|
||||
+ } else {
|
||||
+ if ((r = sshbuf_put_cstring(*session_id2, "")) != 0)
|
||||
+ fatal("%s: buffer error: %s", __func__, ssh_err(r));
|
||||
}
|
||||
- /* pamsshagentauth_debug3("hostname: %s", hostname); */
|
||||
- if(reti >= 0)
|
||||
- pamsshagentauth_buffer_put_cstring(session_id2, hostname);
|
||||
- else
|
||||
- pamsshagentauth_buffer_put_cstring(session_id2, "");
|
||||
- /* pamsshagentauth_debug3("ts: %ld", ts); */
|
||||
- pamsshagentauth_buffer_put_int64(session_id2, (uint64_t) ts);
|
||||
+ /* debug3("ts: %ld", ts); */
|
||||
+ if ((r = sshbuf_put_u64(*session_id2, (uint64_t) ts)) != 0)
|
||||
+ fatal("%s: buffer error: %s", __func__, ssh_err(r));
|
||||
|
||||
free(cookie);
|
||||
return;
|
||||
@@ -278,7 +290,8 @@ ssh_get_authentication_connection_for_ui
|
||||
|
||||
auth = xmalloc(sizeof(*auth));
|
||||
auth->fd = sock;
|
||||
- buffer_init(&auth->identities);
|
||||
+ if ((auth->identities = sshbuf_new()) == NULL)
|
||||
+ fatal("%s: sshbuf_new failed", __func__);
|
||||
auth->howmany = 0;
|
||||
|
||||
return auth;
|
||||
@@ -287,9 +300,9 @@ ssh_get_authentication_connection_for_ui
|
||||
int
|
||||
pamsshagentauth_find_authorized_keys(const char * user, const char * ruser, const char * servicename)
|
||||
{
|
||||
- Buffer session_id2 = { 0 };
|
||||
+ struct sshbuf *session_id2 = NULL;
|
||||
Identity *id;
|
||||
- Key *key;
|
||||
+ struct sshkey *key;
|
||||
AuthenticationConnection *ac;
|
||||
char *comment;
|
||||
uint8_t retval = 0;
|
||||
@@ -299,31 +312,30 @@ pamsshagentauth_find_authorized_keys(con
|
||||
pamsshagentauth_session_id2_gen(&session_id2, user, ruser, servicename);
|
||||
|
||||
if ((ac = ssh_get_authentication_connection_for_uid(uid))) {
|
||||
- pamsshagentauth_verbose("Contacted ssh-agent of user %s (%u)", ruser, uid);
|
||||
+ verbose("Contacted ssh-agent of user %s (%u)", ruser, uid);
|
||||
for (key = ssh_get_first_identity(ac, &comment, 2); key != NULL; key = ssh_get_next_identity(ac, &comment, 2))
|
||||
{
|
||||
if(key != NULL) {
|
||||
- id = pamsshagentauth_xcalloc(1, sizeof(*id));
|
||||
+ id = xcalloc(1, sizeof(*id));
|
||||
id->key = key;
|
||||
id->filename = comment;
|
||||
id->ac = ac;
|
||||
- if(userauth_pubkey_from_id(ruser, id, &session_id2)) {
|
||||
+ if(userauth_pubkey_from_id(ruser, id, session_id2)) {
|
||||
retval = 1;
|
||||
}
|
||||
- pamsshagentauth_xfree(id->filename);
|
||||
- pamsshagentauth_key_free(id->key);
|
||||
- pamsshagentauth_xfree(id);
|
||||
+ free(id->filename);
|
||||
+ key_free(id->key);
|
||||
+ free(id);
|
||||
if(retval == 1)
|
||||
break;
|
||||
}
|
||||
}
|
||||
- pamsshagentauth_buffer_free(&session_id2);
|
||||
+ sshbuf_free(session_id2);
|
||||
ssh_close_authentication_connection(ac);
|
||||
}
|
||||
else {
|
||||
- pamsshagentauth_verbose("No ssh-agent could be contacted");
|
||||
+ verbose("No ssh-agent could be contacted");
|
||||
}
|
||||
- /* pamsshagentauth_xfree(session_id2); */
|
||||
EVP_cleanup();
|
||||
return retval;
|
||||
}
|
||||
diff -up openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_ssh_agent_auth.c.psaa-compat openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_ssh_agent_auth.c
|
||||
--- openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_ssh_agent_auth.c.psaa-compat 2020-09-23 10:52:16.423001461 +0200
|
||||
+++ openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_ssh_agent_auth.c 2020-09-23 10:53:10.631727657 +0200
|
||||
@@ -106,7 +106,7 @@ pam_sm_authenticate(pam_handle_t * pamh,
|
||||
* a patch 8-)
|
||||
*/
|
||||
#if ! HAVE___PROGNAME || HAVE_BUNDLE
|
||||
- __progname = pamsshagentauth_xstrdup(servicename);
|
||||
+ __progname = xstrdup(servicename);
|
||||
#endif
|
||||
|
||||
for(i = argc, argv_ptr = (char **) argv; i > 0; ++argv_ptr, i--) {
|
||||
@@ -132,11 +132,11 @@ pam_sm_authenticate(pam_handle_t * pamh,
|
||||
#endif
|
||||
}
|
||||
|
||||
- pamsshagentauth_log_init(__progname, log_lvl, facility, getenv("PAM_SSH_AGENT_AUTH_DEBUG") ? 1 : 0);
|
||||
+ log_init(__progname, log_lvl, facility, getenv("PAM_SSH_AGENT_AUTH_DEBUG") ? 1 : 0);
|
||||
pam_get_item(pamh, PAM_USER, (void *) &user);
|
||||
pam_get_item(pamh, PAM_RUSER, (void *) &ruser_ptr);
|
||||
|
||||
- pamsshagentauth_verbose("Beginning pam_ssh_agent_auth for user %s", user);
|
||||
+ verbose("Beginning pam_ssh_agent_auth for user %s", user);
|
||||
|
||||
if(ruser_ptr) {
|
||||
strncpy(ruser, ruser_ptr, sizeof(ruser) - 1);
|
||||
@@ -151,12 +151,12 @@ pam_sm_authenticate(pam_handle_t * pamh,
|
||||
#ifdef ENABLE_SUDO_HACK
|
||||
if( (strlen(sudo_service_name) > 0) && strncasecmp(servicename, sudo_service_name, sizeof(sudo_service_name) - 1) == 0 && getenv("SUDO_USER") ) {
|
||||
strncpy(ruser, getenv("SUDO_USER"), sizeof(ruser) - 1 );
|
||||
- pamsshagentauth_verbose( "Using environment variable SUDO_USER (%s)", ruser );
|
||||
+ verbose( "Using environment variable SUDO_USER (%s)", ruser );
|
||||
} else
|
||||
#endif
|
||||
{
|
||||
if( ! getpwuid(getuid()) ) {
|
||||
- pamsshagentauth_verbose("Unable to getpwuid(getuid())");
|
||||
+ verbose("Unable to getpwuid(getuid())");
|
||||
goto cleanexit;
|
||||
}
|
||||
strncpy(ruser, getpwuid(getuid())->pw_name, sizeof(ruser) - 1);
|
||||
@@ -165,11 +165,11 @@ pam_sm_authenticate(pam_handle_t * pamh,
|
||||
|
||||
/* Might as well explicitely confirm the user exists here */
|
||||
if(! getpwnam(ruser) ) {
|
||||
- pamsshagentauth_verbose("getpwnam(%s) failed, bailing out", ruser);
|
||||
+ verbose("getpwnam(%s) failed, bailing out", ruser);
|
||||
goto cleanexit;
|
||||
}
|
||||
if( ! getpwnam(user) ) {
|
||||
- pamsshagentauth_verbose("getpwnam(%s) failed, bailing out", user);
|
||||
+ verbose("getpwnam(%s) failed, bailing out", user);
|
||||
goto cleanexit;
|
||||
}
|
||||
|
||||
@@ -179,8 +179,8 @@ pam_sm_authenticate(pam_handle_t * pamh,
|
||||
*/
|
||||
parse_authorized_key_file(user, authorized_keys_file_input);
|
||||
} else {
|
||||
- pamsshagentauth_verbose("Using default file=/etc/security/authorized_keys");
|
||||
- authorized_keys_file = pamsshagentauth_xstrdup("/etc/security/authorized_keys");
|
||||
+ verbose("Using default file=/etc/security/authorized_keys");
|
||||
+ authorized_keys_file = xstrdup("/etc/security/authorized_keys");
|
||||
}
|
||||
|
||||
/*
|
||||
@@ -189,7 +189,7 @@ pam_sm_authenticate(pam_handle_t * pamh,
|
||||
*/
|
||||
|
||||
if(user && strlen(ruser) > 0) {
|
||||
- pamsshagentauth_verbose("Attempting authentication: `%s' as `%s' using %s", ruser, user, authorized_keys_file);
|
||||
+ verbose("Attempting authentication: `%s' as `%s' using %s", ruser, user, authorized_keys_file);
|
||||
|
||||
/*
|
||||
* Attempt to read data from the sshd if we're being called as an auth agent.
|
||||
@@ -197,10 +197,10 @@ pam_sm_authenticate(pam_handle_t * pamh,
|
||||
const char* ssh_user_auth = pam_getenv(pamh, "SSH_AUTH_INFO_0");
|
||||
int sshd_service = strncasecmp(servicename, sshd_service_name, sizeof(sshd_service_name) - 1);
|
||||
if (sshd_service == 0 && ssh_user_auth != NULL) {
|
||||
- pamsshagentauth_verbose("Got SSH_AUTH_INFO_0: `%.20s...'", ssh_user_auth);
|
||||
+ verbose("Got SSH_AUTH_INFO_0: `%.20s...'", ssh_user_auth);
|
||||
if (userauth_pubkey_from_pam(ruser, ssh_user_auth) > 0) {
|
||||
retval = PAM_SUCCESS;
|
||||
- pamsshagentauth_logit("Authenticated (sshd): `%s' as `%s' using %s", ruser, user, authorized_keys_file);
|
||||
+ logit("Authenticated (sshd): `%s' as `%s' using %s", ruser, user, authorized_keys_file);
|
||||
goto cleanexit;
|
||||
}
|
||||
}
|
||||
@@ -208,13 +208,13 @@ pam_sm_authenticate(pam_handle_t * pamh,
|
||||
* this pw_uid is used to validate the SSH_AUTH_SOCK, and so must be the uid of the ruser invoking the program, not the target-user
|
||||
*/
|
||||
if(pamsshagentauth_find_authorized_keys(user, ruser, servicename)) { /* getpwnam(ruser)->pw_uid)) { */
|
||||
- pamsshagentauth_logit("Authenticated (agent): `%s' as `%s' using %s", ruser, user, authorized_keys_file);
|
||||
+ logit("Authenticated (agent): `%s' as `%s' using %s", ruser, user, authorized_keys_file);
|
||||
retval = PAM_SUCCESS;
|
||||
} else {
|
||||
- pamsshagentauth_logit("Failed Authentication: `%s' as `%s' using %s", ruser, user, authorized_keys_file);
|
||||
+ logit("Failed Authentication: `%s' as `%s' using %s", ruser, user, authorized_keys_file);
|
||||
}
|
||||
} else {
|
||||
- pamsshagentauth_logit("No %s specified, cannot continue with this form of authentication", (user) ? "ruser" : "user" );
|
||||
+ logit("No %s specified, cannot continue with this form of authentication", (user) ? "ruser" : "user" );
|
||||
}
|
||||
|
||||
cleanexit:
|
||||
diff -up openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_user_authorized_keys.c.psaa-compat openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_user_authorized_keys.c
|
||||
--- openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_user_authorized_keys.c.psaa-compat 2019-07-08 18:36:13.000000000 +0200
|
||||
+++ openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_user_authorized_keys.c 2020-09-23 10:52:16.424001475 +0200
|
||||
@@ -66,8 +66,8 @@
|
||||
#include "xmalloc.h"
|
||||
#include "match.h"
|
||||
#include "log.h"
|
||||
-#include "buffer.h"
|
||||
-#include "key.h"
|
||||
+#include "sshbuf.h"
|
||||
+#include "sshkey.h"
|
||||
#include "misc.h"
|
||||
|
||||
#include "xmalloc.h"
|
||||
@@ -77,7 +77,6 @@
|
||||
#include "pathnames.h"
|
||||
#include "secure_filename.h"
|
||||
|
||||
-#include "identity.h"
|
||||
#include "pam_user_key_allowed2.h"
|
||||
|
||||
extern char *authorized_keys_file;
|
||||
@@ -117,12 +116,12 @@ parse_authorized_key_file(const char *us
|
||||
} else {
|
||||
slash_ptr = strchr(auth_keys_file_buf, '/');
|
||||
if(!slash_ptr)
|
||||
- pamsshagentauth_fatal
|
||||
+ fatal
|
||||
("cannot expand tilde in path without a `/'");
|
||||
|
||||
owner_uname_len = slash_ptr - auth_keys_file_buf - 1;
|
||||
if(owner_uname_len > (sizeof(owner_uname) - 1))
|
||||
- pamsshagentauth_fatal("Username too long");
|
||||
+ fatal("Username too long");
|
||||
|
||||
strncat(owner_uname, auth_keys_file_buf + 1, owner_uname_len);
|
||||
if(!authorized_keys_file_allowed_owner_uid)
|
||||
@@ -130,11 +129,11 @@ parse_authorized_key_file(const char *us
|
||||
getpwnam(owner_uname)->pw_uid;
|
||||
}
|
||||
authorized_keys_file =
|
||||
- pamsshagentauth_tilde_expand_filename(auth_keys_file_buf,
|
||||
+ tilde_expand_filename(auth_keys_file_buf,
|
||||
authorized_keys_file_allowed_owner_uid);
|
||||
strncpy(auth_keys_file_buf, authorized_keys_file,
|
||||
sizeof(auth_keys_file_buf) - 1);
|
||||
- pamsshagentauth_xfree(authorized_keys_file) /* when we
|
||||
+ free(authorized_keys_file) /* when we
|
||||
percent_expand
|
||||
later, we'd step
|
||||
on this, so free
|
||||
@@ -150,13 +149,13 @@ parse_authorized_key_file(const char *us
|
||||
strncat(hostname, fqdn, strcspn(fqdn, "."));
|
||||
#endif
|
||||
authorized_keys_file =
|
||||
- pamsshagentauth_percent_expand(auth_keys_file_buf, "h",
|
||||
+ percent_expand(auth_keys_file_buf, "h",
|
||||
getpwnam(user)->pw_dir, "H", hostname,
|
||||
"f", fqdn, "u", user, NULL);
|
||||
}
|
||||
|
||||
int
|
||||
-pam_user_key_allowed(const char *ruser, Key * key)
|
||||
+pam_user_key_allowed(const char *ruser, struct sshkey * key)
|
||||
{
|
||||
return
|
||||
pamsshagentauth_user_key_allowed2(getpwuid(authorized_keys_file_allowed_owner_uid),
|
||||
diff -up openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_user_authorized_keys.h.psaa-compat openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_user_authorized_keys.h
|
||||
--- openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_user_authorized_keys.h.psaa-compat 2019-07-08 18:36:13.000000000 +0200
|
||||
+++ openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_user_authorized_keys.h 2020-09-23 10:52:16.424001475 +0200
|
||||
@@ -32,7 +32,7 @@
|
||||
#define _PAM_USER_KEY_ALLOWED_H
|
||||
|
||||
#include "identity.h"
|
||||
-int pam_user_key_allowed(const char *, Key *);
|
||||
+int pam_user_key_allowed(const char *, struct sshkey *);
|
||||
void parse_authorized_key_file(const char *, const char *);
|
||||
|
||||
#endif
|
||||
diff -up openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_user_key_allowed2.c.psaa-compat openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_user_key_allowed2.c
|
||||
--- openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_user_key_allowed2.c.psaa-compat 2019-07-08 18:36:13.000000000 +0200
|
||||
+++ openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_user_key_allowed2.c 2020-09-23 10:52:16.424001475 +0200
|
||||
@@ -45,44 +45,46 @@
|
||||
#include "xmalloc.h"
|
||||
#include "ssh.h"
|
||||
#include "ssh2.h"
|
||||
-#include "buffer.h"
|
||||
+#include "sshbuf.h"
|
||||
#include "log.h"
|
||||
#include "compat.h"
|
||||
-#include "key.h"
|
||||
+#include "digest.h"
|
||||
+#include "sshkey.h"
|
||||
#include "pathnames.h"
|
||||
#include "misc.h"
|
||||
#include "secure_filename.h"
|
||||
#include "uidswap.h"
|
||||
-
|
||||
-#include "identity.h"
|
||||
+#include <unistd.h>
|
||||
|
||||
/* return 1 if user allows given key */
|
||||
/* Modified slightly from original found in auth2-pubkey.c */
|
||||
static int
|
||||
-pamsshagentauth_check_authkeys_file(FILE * f, char *file, Key * key)
|
||||
+pamsshagentauth_check_authkeys_file(FILE * f, char *file, struct sshkey * key)
|
||||
{
|
||||
- char line[SSH_MAX_PUBKEY_BYTES];
|
||||
+ char *line = NULL;
|
||||
int found_key = 0;
|
||||
u_long linenum = 0;
|
||||
- Key *found;
|
||||
+ struct sshkey *found;
|
||||
char *fp;
|
||||
+ size_t linesize = 0;
|
||||
|
||||
found_key = 0;
|
||||
- found = pamsshagentauth_key_new(key->type);
|
||||
+ found = sshkey_new(key->type);
|
||||
|
||||
- while(read_keyfile_line(f, file, line, sizeof(line), &linenum) != -1) {
|
||||
+ while ((getline(&line, &linesize, f)) != -1) {
|
||||
char *cp = NULL; /* *key_options = NULL; */
|
||||
|
||||
+ linenum++;
|
||||
/* Skip leading whitespace, empty and comment lines. */
|
||||
for(cp = line; *cp == ' ' || *cp == '\t'; cp++);
|
||||
if(!*cp || *cp == '\n' || *cp == '#')
|
||||
continue;
|
||||
|
||||
- if(pamsshagentauth_key_read(found, &cp) != 1) {
|
||||
+ if (sshkey_read(found, &cp) != 0) {
|
||||
/* no key? check if there are options for this key */
|
||||
int quoted = 0;
|
||||
|
||||
- pamsshagentauth_verbose("user_key_allowed: check options: '%s'", cp);
|
||||
+ verbose("user_key_allowed: check options: '%s'", cp);
|
||||
/* key_options = cp; */
|
||||
for(; *cp && (quoted || (*cp != ' ' && *cp != '\t')); cp++) {
|
||||
if(*cp == '\\' && cp[1] == '"')
|
||||
@@ -92,26 +94,27 @@ pamsshagentauth_check_authkeys_file(FILE
|
||||
}
|
||||
/* Skip remaining whitespace. */
|
||||
for(; *cp == ' ' || *cp == '\t'; cp++);
|
||||
- if(pamsshagentauth_key_read(found, &cp) != 1) {
|
||||
- pamsshagentauth_verbose("user_key_allowed: advance: '%s'", cp);
|
||||
+ if(sshkey_read(found, &cp) != 0) {
|
||||
+ verbose("user_key_allowed: advance: '%s'", cp);
|
||||
/* still no key? advance to next line */
|
||||
continue;
|
||||
}
|
||||
}
|
||||
- if(pamsshagentauth_key_equal(found, key)) {
|
||||
+ if(sshkey_equal(found, key)) {
|
||||
found_key = 1;
|
||||
- pamsshagentauth_logit("matching key found: file/command %s, line %lu", file,
|
||||
+ logit("matching key found: file/command %s, line %lu", file,
|
||||
linenum);
|
||||
- fp = pamsshagentauth_key_fingerprint(found, SSH_FP_MD5, SSH_FP_HEX);
|
||||
- pamsshagentauth_logit("Found matching %s key: %s",
|
||||
- pamsshagentauth_key_type(found), fp);
|
||||
- pamsshagentauth_xfree(fp);
|
||||
+ fp = sshkey_fingerprint(found, SSH_DIGEST_SHA256, SSH_FP_BASE64);
|
||||
+ logit("Found matching %s key: %s",
|
||||
+ sshkey_type(found), fp);
|
||||
+ free(fp);
|
||||
break;
|
||||
}
|
||||
}
|
||||
- pamsshagentauth_key_free(found);
|
||||
+ free(line);
|
||||
+ sshkey_free(found);
|
||||
if(!found_key)
|
||||
- pamsshagentauth_verbose("key not found");
|
||||
+ verbose("key not found");
|
||||
return found_key;
|
||||
}
|
||||
|
||||
@@ -120,19 +123,19 @@ pamsshagentauth_check_authkeys_file(FILE
|
||||
* returns 1 if the key is allowed or 0 otherwise.
|
||||
*/
|
||||
int
|
||||
-pamsshagentauth_user_key_allowed2(struct passwd *pw, Key * key, char *file)
|
||||
+pamsshagentauth_user_key_allowed2(struct passwd *pw, struct sshkey * key, char *file)
|
||||
{
|
||||
FILE *f;
|
||||
int found_key = 0;
|
||||
struct stat st;
|
||||
- char buf[SSH_MAX_PUBKEY_BYTES];
|
||||
+ char buf[256];
|
||||
|
||||
/* Temporarily use the user's uid. */
|
||||
- pamsshagentauth_verbose("trying public key file %s", file);
|
||||
+ verbose("trying public key file %s", file);
|
||||
|
||||
/* Fail not so quietly if file does not exist */
|
||||
if(stat(file, &st) < 0) {
|
||||
- pamsshagentauth_verbose("File not found: %s", file);
|
||||
+ verbose("File not found: %s", file);
|
||||
return 0;
|
||||
}
|
||||
|
||||
@@ -144,7 +147,7 @@ pamsshagentauth_user_key_allowed2(struct
|
||||
|
||||
if(pamsshagentauth_secure_filename(f, file, pw, buf, sizeof(buf)) != 0) {
|
||||
fclose(f);
|
||||
- pamsshagentauth_logit("Authentication refused: %s", buf);
|
||||
+ logit("Authentication refused: %s", buf);
|
||||
return 0;
|
||||
}
|
||||
|
||||
@@ -160,7 +163,7 @@ pamsshagentauth_user_key_allowed2(struct
|
||||
int
|
||||
pamsshagentauth_user_key_command_allowed2(char *authorized_keys_command,
|
||||
char *authorized_keys_command_user,
|
||||
- struct passwd *user_pw, Key * key)
|
||||
+ struct passwd *user_pw, struct sshkey * key)
|
||||
{
|
||||
FILE *f;
|
||||
int ok, found_key = 0;
|
||||
@@ -187,44 +190,44 @@ pamsshagentauth_user_key_command_allowed
|
||||
else {
|
||||
pw = getpwnam(authorized_keys_command_user);
|
||||
if(pw == NULL) {
|
||||
- pamsshagentauth_logerror("authorized_keys_command_user \"%s\" not found: %s",
|
||||
+ error("authorized_keys_command_user \"%s\" not found: %s",
|
||||
authorized_keys_command_user, strerror(errno));
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
- pamsshagentauth_temporarily_use_uid(pw);
|
||||
+ temporarily_use_uid(pw);
|
||||
|
||||
if(stat(authorized_keys_command, &st) < 0) {
|
||||
- pamsshagentauth_logerror
|
||||
+ error
|
||||
("Could not stat AuthorizedKeysCommand \"%s\": %s",
|
||||
authorized_keys_command, strerror(errno));
|
||||
goto out;
|
||||
}
|
||||
if(pamsshagentauth_auth_secure_path
|
||||
(authorized_keys_command, &st, NULL, 0, errmsg, sizeof(errmsg)) != 0) {
|
||||
- pamsshagentauth_logerror("Unsafe AuthorizedKeysCommand: %s", errmsg);
|
||||
+ error("Unsafe AuthorizedKeysCommand: %s", errmsg);
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* open the pipe and read the keys */
|
||||
if(pipe(p) != 0) {
|
||||
- pamsshagentauth_logerror("%s: pipe: %s", __func__, strerror(errno));
|
||||
+ error("%s: pipe: %s", __func__, strerror(errno));
|
||||
goto out;
|
||||
}
|
||||
|
||||
- pamsshagentauth_debug("Running AuthorizedKeysCommand: \"%s\" as \"%s\" with argument: \"%s\"",
|
||||
+ debug("Running AuthorizedKeysCommand: \"%s\" as \"%s\" with argument: \"%s\"",
|
||||
authorized_keys_command, pw->pw_name, username);
|
||||
|
||||
/*
|
||||
* Don't want to call this in the child, where it can fatal() and
|
||||
* run cleanup_exit() code.
|
||||
*/
|
||||
- pamsshagentauth_restore_uid();
|
||||
+ restore_uid();
|
||||
|
||||
switch ((pid = fork())) {
|
||||
case -1: /* error */
|
||||
- pamsshagentauth_logerror("%s: fork: %s", __func__, strerror(errno));
|
||||
+ error("%s: fork: %s", __func__, strerror(errno));
|
||||
close(p[0]);
|
||||
close(p[1]);
|
||||
return 0;
|
||||
@@ -234,13 +237,13 @@ pamsshagentauth_user_key_command_allowed
|
||||
|
||||
/* do this before the setresuid so thta they can be logged */
|
||||
if((devnull = open(_PATH_DEVNULL, O_RDWR)) == -1) {
|
||||
- pamsshagentauth_logerror("%s: open %s: %s", __func__, _PATH_DEVNULL,
|
||||
+ error("%s: open %s: %s", __func__, _PATH_DEVNULL,
|
||||
strerror(errno));
|
||||
_exit(1);
|
||||
}
|
||||
if(dup2(devnull, STDIN_FILENO) == -1 || dup2(p[1], STDOUT_FILENO) == -1
|
||||
|| dup2(devnull, STDERR_FILENO) == -1) {
|
||||
- pamsshagentauth_logerror("%s: dup2: %s", __func__, strerror(errno));
|
||||
+ error("%s: dup2: %s", __func__, strerror(errno));
|
||||
_exit(1);
|
||||
}
|
||||
#if defined(HAVE_SETRESGID) && !defined(BROKEN_SETRESGID)
|
||||
@@ -248,7 +251,7 @@ pamsshagentauth_user_key_command_allowed
|
||||
#else
|
||||
if (setgid(pw->pw_gid) != 0 || setegid(pw->pw_gid) != 0) {
|
||||
#endif
|
||||
- pamsshagentauth_logerror("setresgid %u: %s", (u_int) pw->pw_gid,
|
||||
+ error("setresgid %u: %s", (u_int) pw->pw_gid,
|
||||
strerror(errno));
|
||||
_exit(1);
|
||||
}
|
||||
@@ -258,7 +261,7 @@ pamsshagentauth_user_key_command_allowed
|
||||
#else
|
||||
if (setuid(pw->pw_uid) != 0 || seteuid(pw->pw_uid) != 0) {
|
||||
#endif
|
||||
- pamsshagentauth_logerror("setresuid %u: %s", (u_int) pw->pw_uid,
|
||||
+ error("setresuid %u: %s", (u_int) pw->pw_uid,
|
||||
strerror(errno));
|
||||
_exit(1);
|
||||
}
|
||||
@@ -270,18 +273,18 @@ pamsshagentauth_user_key_command_allowed
|
||||
|
||||
/* pretty sure this will barf because we are now suid, but since we
|
||||
should't reach this anyway, I'll leave it here */
|
||||
- pamsshagentauth_logerror("AuthorizedKeysCommand %s exec failed: %s",
|
||||
+ error("AuthorizedKeysCommand %s exec failed: %s",
|
||||
authorized_keys_command, strerror(errno));
|
||||
_exit(127);
|
||||
default: /* parent */
|
||||
break;
|
||||
}
|
||||
|
||||
- pamsshagentauth_temporarily_use_uid(pw);
|
||||
+ temporarily_use_uid(pw);
|
||||
|
||||
close(p[1]);
|
||||
if((f = fdopen(p[0], "r")) == NULL) {
|
||||
- pamsshagentauth_logerror("%s: fdopen: %s", __func__, strerror(errno));
|
||||
+ error("%s: fdopen: %s", __func__, strerror(errno));
|
||||
close(p[0]);
|
||||
/* Don't leave zombie child */
|
||||
while(waitpid(pid, NULL, 0) == -1 && errno == EINTR);
|
||||
@@ -292,22 +295,22 @@ pamsshagentauth_user_key_command_allowed
|
||||
|
||||
while(waitpid(pid, &status, 0) == -1) {
|
||||
if(errno != EINTR) {
|
||||
- pamsshagentauth_logerror("%s: waitpid: %s", __func__,
|
||||
+ error("%s: waitpid: %s", __func__,
|
||||
strerror(errno));
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
if(WIFSIGNALED(status)) {
|
||||
- pamsshagentauth_logerror("AuthorizedKeysCommand %s exited on signal %d",
|
||||
+ error("AuthorizedKeysCommand %s exited on signal %d",
|
||||
authorized_keys_command, WTERMSIG(status));
|
||||
goto out;
|
||||
} else if(WEXITSTATUS(status) != 0) {
|
||||
- pamsshagentauth_logerror("AuthorizedKeysCommand %s returned status %d",
|
||||
+ error("AuthorizedKeysCommand %s returned status %d",
|
||||
authorized_keys_command, WEXITSTATUS(status));
|
||||
goto out;
|
||||
}
|
||||
found_key = ok;
|
||||
out:
|
||||
- pamsshagentauth_restore_uid();
|
||||
+ restore_uid();
|
||||
return found_key;
|
||||
}
|
||||
diff -up openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_user_key_allowed2.h.psaa-compat openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_user_key_allowed2.h
|
||||
--- openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_user_key_allowed2.h.psaa-compat 2019-07-08 18:36:13.000000000 +0200
|
||||
+++ openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/pam_user_key_allowed2.h 2020-09-23 10:52:16.424001475 +0200
|
||||
@@ -32,7 +32,7 @@
|
||||
#define _PAM_USER_KEY_ALLOWED_H
|
||||
|
||||
#include "identity.h"
|
||||
-int pamsshagentauth_user_key_allowed2(struct passwd *, Key *, char *);
|
||||
-int pamsshagentauth_user_key_command_allowed2(char *, char *, struct passwd *, Key *);
|
||||
+int pamsshagentauth_user_key_allowed2(struct passwd *, struct sshkey *, char *);
|
||||
+int pamsshagentauth_user_key_command_allowed2(char *, char *, struct passwd *, struct sshkey *);
|
||||
|
||||
#endif
|
||||
diff -up openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/secure_filename.c.psaa-compat openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/secure_filename.c
|
||||
--- openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/secure_filename.c.psaa-compat 2019-07-08 18:36:13.000000000 +0200
|
||||
+++ openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/secure_filename.c 2020-09-23 10:52:16.424001475 +0200
|
||||
@@ -53,8 +53,8 @@
|
||||
#include "xmalloc.h"
|
||||
#include "match.h"
|
||||
#include "log.h"
|
||||
-#include "buffer.h"
|
||||
-#include "key.h"
|
||||
+#include "sshbuf.h"
|
||||
+#include "sshkey.h"
|
||||
#include "misc.h"
|
||||
|
||||
|
||||
@@ -80,7 +80,7 @@ pamsshagentauth_auth_secure_path(const c
|
||||
int comparehome = 0;
|
||||
struct stat st;
|
||||
|
||||
- pamsshagentauth_verbose("auth_secure_filename: checking for uid: %u", uid);
|
||||
+ verbose("auth_secure_filename: checking for uid: %u", uid);
|
||||
|
||||
if (realpath(name, buf) == NULL) {
|
||||
snprintf(err, errlen, "realpath %s failed: %s", name,
|
||||
@@ -115,9 +115,9 @@ pamsshagentauth_auth_secure_path(const c
|
||||
snprintf(err, errlen, "dirname() failed");
|
||||
return -1;
|
||||
}
|
||||
- pamsshagentauth_strlcpy(buf, cp, sizeof(buf));
|
||||
+ strlcpy(buf, cp, sizeof(buf));
|
||||
|
||||
- pamsshagentauth_verbose("secure_filename: checking '%s'", buf);
|
||||
+ verbose("secure_filename: checking '%s'", buf);
|
||||
if (stat(buf, &st) < 0 ||
|
||||
(st.st_uid != 0 && st.st_uid != uid) ||
|
||||
(st.st_mode & 022) != 0) {
|
||||
@@ -128,7 +128,7 @@ pamsshagentauth_auth_secure_path(const c
|
||||
|
||||
/* If are passed the homedir then we can stop */
|
||||
if (comparehome && strcmp(homedir, buf) == 0) {
|
||||
- pamsshagentauth_verbose("secure_filename: terminating check at '%s'",
|
||||
+ verbose("secure_filename: terminating check at '%s'",
|
||||
buf);
|
||||
break;
|
||||
}
|
||||
diff -up openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/userauth_pubkey_from_id.c.psaa-compat openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/userauth_pubkey_from_id.c
|
||||
--- openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/userauth_pubkey_from_id.c.psaa-compat 2019-07-08 18:36:13.000000000 +0200
|
||||
+++ openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/userauth_pubkey_from_id.c 2020-09-23 10:52:16.424001475 +0200
|
||||
@@ -37,10 +37,11 @@
|
||||
#include "xmalloc.h"
|
||||
#include "ssh.h"
|
||||
#include "ssh2.h"
|
||||
-#include "buffer.h"
|
||||
+#include "sshbuf.h"
|
||||
#include "log.h"
|
||||
#include "compat.h"
|
||||
-#include "key.h"
|
||||
+#include "sshkey.h"
|
||||
+#include "ssherr.h"
|
||||
#include "pathnames.h"
|
||||
#include "misc.h"
|
||||
#include "secure_filename.h"
|
||||
@@ -48,54 +49,59 @@
|
||||
#include "identity.h"
|
||||
#include "pam_user_authorized_keys.h"
|
||||
|
||||
+#define SSH2_MSG_USERAUTH_TRUST_REQUEST 54
|
||||
+
|
||||
/* extern u_char *session_id2;
|
||||
extern uint8_t session_id_len;
|
||||
*/
|
||||
|
||||
int
|
||||
-userauth_pubkey_from_id(const char *ruser, Identity * id, Buffer * session_id2)
|
||||
+userauth_pubkey_from_id(const char *ruser, Identity * id, struct sshbuf * session_id2)
|
||||
{
|
||||
- Buffer b = { 0 };
|
||||
+ struct sshbuf *b = NULL;
|
||||
char *pkalg = NULL;
|
||||
u_char *pkblob = NULL, *sig = NULL;
|
||||
- u_int blen = 0, slen = 0;
|
||||
- int authenticated = 0;
|
||||
+ size_t blen = 0, slen = 0;
|
||||
+ int r, authenticated = 0;
|
||||
|
||||
- pkalg = (char *) key_ssh_name(id->key);
|
||||
+ pkalg = (char *) sshkey_ssh_name(id->key);
|
||||
|
||||
/* first test if this key is even allowed */
|
||||
if(! pam_user_key_allowed(ruser, id->key))
|
||||
- goto user_auth_clean_exit;
|
||||
+ goto user_auth_clean_exit_without_buffer;
|
||||
|
||||
- if(pamsshagentauth_key_to_blob(id->key, &pkblob, &blen) == 0)
|
||||
- goto user_auth_clean_exit;
|
||||
+ if(sshkey_to_blob(id->key, &pkblob, &blen) != 0)
|
||||
+ goto user_auth_clean_exit_without_buffer;
|
||||
|
||||
/* construct packet to sign and test */
|
||||
- pamsshagentauth_buffer_init(&b);
|
||||
+ if ((b = sshbuf_new()) == NULL)
|
||||
+ fatal("%s: sshbuf_new failed", __func__);
|
||||
|
||||
- pamsshagentauth_buffer_put_string(&b, session_id2->buf + session_id2->offset, session_id2->end - session_id2->offset);
|
||||
- pamsshagentauth_buffer_put_char(&b, SSH2_MSG_USERAUTH_TRUST_REQUEST);
|
||||
- pamsshagentauth_buffer_put_cstring(&b, ruser);
|
||||
- pamsshagentauth_buffer_put_cstring(&b, "pam_ssh_agent_auth");
|
||||
- pamsshagentauth_buffer_put_cstring(&b, "publickey");
|
||||
- pamsshagentauth_buffer_put_char(&b, 1);
|
||||
- pamsshagentauth_buffer_put_cstring(&b, pkalg);
|
||||
- pamsshagentauth_buffer_put_string(&b, pkblob, blen);
|
||||
+ if ((r = sshbuf_put_string(b, sshbuf_ptr(session_id2), sshbuf_len(session_id2))) != 0 ||
|
||||
+ (r = sshbuf_put_u8(b, SSH2_MSG_USERAUTH_TRUST_REQUEST)) != 0 ||
|
||||
+ (r = sshbuf_put_cstring(b, ruser)) != 0 ||
|
||||
+ (r = sshbuf_put_cstring(b, "pam_ssh_agent_auth")) != 0 ||
|
||||
+ (r = sshbuf_put_cstring(b, "publickey")) != 0 ||
|
||||
+ (r = sshbuf_put_u8(b, 1)) != 0 ||
|
||||
+ (r = sshbuf_put_cstring(b, pkalg)) != 0 ||
|
||||
+ (r = sshbuf_put_string(b, pkblob, blen)) != 0)
|
||||
+ fatal("%s: buffer error: %s", __func__, ssh_err(r));
|
||||
|
||||
- if(ssh_agent_sign(id->ac, id->key, &sig, &slen, pamsshagentauth_buffer_ptr(&b), pamsshagentauth_buffer_len(&b)) != 0)
|
||||
+ if (ssh_agent_sign(id->ac, id->key, &sig, &slen, sshbuf_ptr(b), sshbuf_len(b)) != 0)
|
||||
goto user_auth_clean_exit;
|
||||
|
||||
/* test for correct signature */
|
||||
- if(pamsshagentauth_key_verify(id->key, sig, slen, pamsshagentauth_buffer_ptr(&b), pamsshagentauth_buffer_len(&b)) == 1)
|
||||
+ if (sshkey_verify(id->key, sig, slen, sshbuf_ptr(b), sshbuf_len(b), NULL, 0, NULL) == 0)
|
||||
authenticated = 1;
|
||||
|
||||
user_auth_clean_exit:
|
||||
/* if(&b != NULL) */
|
||||
- pamsshagentauth_buffer_free(&b);
|
||||
+ sshbuf_free(b);
|
||||
+ user_auth_clean_exit_without_buffer:
|
||||
if(sig != NULL)
|
||||
- pamsshagentauth_xfree(sig);
|
||||
+ free(sig);
|
||||
if(pkblob != NULL)
|
||||
- pamsshagentauth_xfree(pkblob);
|
||||
+ free(pkblob);
|
||||
CRYPTO_cleanup_all_ex_data();
|
||||
return authenticated;
|
||||
}
|
||||
diff -up openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/userauth_pubkey_from_id.h.psaa-compat openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/userauth_pubkey_from_id.h
|
||||
--- openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/userauth_pubkey_from_id.h.psaa-compat 2019-07-08 18:36:13.000000000 +0200
|
||||
+++ openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/userauth_pubkey_from_id.h 2020-09-23 10:52:16.424001475 +0200
|
||||
@@ -31,7 +31,7 @@
|
||||
#ifndef _USERAUTH_PUBKEY_FROM_ID_H
|
||||
#define _USERAUTH_PUBKEY_FROM_ID_H
|
||||
|
||||
-#include <identity.h>
|
||||
-int userauth_pubkey_from_id(const char *, Identity *, Buffer *);
|
||||
+#include "identity.h"
|
||||
+int userauth_pubkey_from_id(const char *, Identity *, struct sshbuf *);
|
||||
|
||||
#endif
|
||||
diff -up openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/uuencode.c.psaa-compat openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/uuencode.c
|
||||
--- openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/uuencode.c.psaa-compat 2019-07-08 18:36:13.000000000 +0200
|
||||
+++ openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/uuencode.c 2020-09-23 10:52:16.424001475 +0200
|
||||
@@ -56,7 +56,7 @@ pamsshagentauth_uudecode(const char *src
|
||||
/* and remove trailing whitespace because __b64_pton needs this */
|
||||
*p = '\0';
|
||||
len = pamsshagentauth___b64_pton(encoded, target, targsize);
|
||||
- pamsshagentauth_xfree(encoded);
|
||||
+ xfree(encoded);
|
||||
return len;
|
||||
}
|
||||
|
||||
@@ -70,7 +70,7 @@ pamsshagentauth_dump_base64(FILE *fp, co
|
||||
fprintf(fp, "dump_base64: len > 65536\n");
|
||||
return;
|
||||
}
|
||||
- buf = pamsshagentauth_xmalloc(2*len);
|
||||
+ buf = malloc(2*len);
|
||||
n = pamsshagentauth_uuencode(data, len, buf, 2*len);
|
||||
for (i = 0; i < n; i++) {
|
||||
fprintf(fp, "%c", buf[i]);
|
||||
@@ -79,5 +79,5 @@ pamsshagentauth_dump_base64(FILE *fp, co
|
||||
}
|
||||
if (i % 70 != 69)
|
||||
fprintf(fp, "\n");
|
||||
- pamsshagentauth_xfree(buf);
|
||||
+ free(buf);
|
||||
}
|
||||
--- openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/userauth_pubkey_from_pam.c.compat 2020-09-23 11:32:30.783695267 +0200
|
||||
+++ openssh/pam_ssh_agent_auth-pam_ssh_agent_auth-0.10.4/userauth_pubkey_from_pam.c 2020-09-23 11:33:21.383389036 +0200
|
||||
@@ -33,7 +33,8 @@
|
||||
#include <string.h>
|
||||
|
||||
#include "defines.h"
|
||||
-#include "key.h"
|
||||
+#include <includes.h>
|
||||
+#include "sshkey.h"
|
||||
#include "log.h"
|
||||
|
||||
#include "pam_user_authorized_keys.h"
|
||||
@@ -42,28 +42,28 @@
|
||||
int authenticated = 0;
|
||||
const char method[] = "publickey ";
|
||||
|
||||
- char* ai = pamsshagentauth_xstrdup(ssh_auth_info);
|
||||
+ char* ai = xstrdup(ssh_auth_info);
|
||||
char* saveptr;
|
||||
|
||||
char* auth_line = strtok_r(ai, "\n", &saveptr);
|
||||
while (auth_line != NULL) {
|
||||
if (strncmp(auth_line, method, sizeof(method) - 1) == 0) {
|
||||
char* key_str = auth_line + sizeof(method) - 1;
|
||||
- Key* key = pamsshagentauth_key_new(KEY_UNSPEC);
|
||||
+ struct sshkey* key = sshkey_new(KEY_UNSPEC);
|
||||
if (key == NULL) {
|
||||
continue;
|
||||
}
|
||||
- int r = pamsshagentauth_key_read(key, &key_str);
|
||||
+ int r = sshkey_read(key, &key_str);
|
||||
if (r == 1) {
|
||||
if (pam_user_key_allowed(ruser, key)) {
|
||||
authenticated = 1;
|
||||
- pamsshagentauth_key_free(key);
|
||||
+ sshkey_free(key);
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
- pamsshagentauth_verbose("Failed to create key for %s: %d", auth_line, r);
|
||||
+ verbose("Failed to create key for %s: %d", auth_line, r);
|
||||
}
|
||||
- pamsshagentauth_key_free(key);
|
||||
+ sshkey_free(key);
|
||||
}
|
||||
auth_line = strtok_r(NULL, "\n", &saveptr);
|
||||
}
|
@ -1,20 +0,0 @@
|
||||
diff --git a/pam_ssh_agent_auth-0.10.2/pam_user_authorized_keys.c b/pam_ssh_agent_auth-0.10.2/pam_user_authorized_keys.c
|
||||
--- a/pam_ssh_agent_auth-0.10.2/pam_user_authorized_keys.c
|
||||
+++ b/pam_ssh_agent_auth-0.10.2/pam_user_authorized_keys.c
|
||||
@@ -158,11 +158,12 @@ parse_authorized_key_file(const char *user,
|
||||
int
|
||||
pam_user_key_allowed(const char *ruser, struct sshkey * key)
|
||||
{
|
||||
+ struct passwd *pw;
|
||||
return
|
||||
- pamsshagentauth_user_key_allowed2(getpwuid(authorized_keys_file_allowed_owner_uid),
|
||||
- key, authorized_keys_file)
|
||||
- || pamsshagentauth_user_key_allowed2(getpwuid(0), key,
|
||||
- authorized_keys_file)
|
||||
+ ( (pw = getpwuid(authorized_keys_file_allowed_owner_uid)) &&
|
||||
+ pamsshagentauth_user_key_allowed2(pw, key, authorized_keys_file))
|
||||
+ || ((pw = getpwuid(0)) &&
|
||||
+ pamsshagentauth_user_key_allowed2(pw, key, authorized_keys_file))
|
||||
|| pamsshagentauth_user_key_command_allowed2(authorized_keys_command,
|
||||
authorized_keys_command_user,
|
||||
getpwnam(ruser), key);
|
@ -1,37 +0,0 @@
|
||||
diff -up openssh-7.4p1/pam_ssh_agent_auth-0.10.3/iterate_ssh_agent_keys.c.psaa-seteuid openssh-7.4p1/pam_ssh_agent_auth-0.10.3/iterate_ssh_agent_keys.c
|
||||
--- openssh-7.4p1/pam_ssh_agent_auth-0.10.3/iterate_ssh_agent_keys.c.psaa-seteuid 2017-02-07 15:41:53.172334151 +0100
|
||||
+++ openssh-7.4p1/pam_ssh_agent_auth-0.10.3/iterate_ssh_agent_keys.c 2017-02-07 15:41:53.174334149 +0100
|
||||
@@ -238,17 +238,26 @@ ssh_get_authentication_socket_for_uid(ui
|
||||
}
|
||||
|
||||
errno = 0;
|
||||
- seteuid(uid); /* To ensure a race condition is not used to circumvent the stat
|
||||
- above, we will temporarily drop UID to the caller */
|
||||
- if (connect(sock, (struct sockaddr *)&sunaddr, sizeof sunaddr) < 0) {
|
||||
+ /* To ensure a race condition is not used to circumvent the stat
|
||||
+ above, we will temporarily drop UID to the caller */
|
||||
+ if (seteuid(uid) == -1) {
|
||||
close(sock);
|
||||
- if(errno == EACCES)
|
||||
- fatal("MAJOR SECURITY WARNING: uid %lu made a deliberate and malicious attempt to open an agent socket owned by another user", (unsigned long) uid);
|
||||
+ error("seteuid(%lu) failed with error: %s",
|
||||
+ (unsigned long) uid, strerror(errno));
|
||||
return -1;
|
||||
}
|
||||
+ if (connect(sock, (struct sockaddr *)&sunaddr, sizeof sunaddr) < 0) {
|
||||
+ close(sock);
|
||||
+ sock = -1;
|
||||
+ if(errno == EACCES)
|
||||
+ fatal("MAJOR SECURITY WARNING: uid %lu made a deliberate and malicious attempt to open an agent socket owned by another user", (unsigned long) uid);
|
||||
+ }
|
||||
|
||||
- seteuid(0); /* we now continue the regularly scheduled programming */
|
||||
-
|
||||
+ /* we now continue the regularly scheduled programming */
|
||||
+ if (0 != seteuid(0)) {
|
||||
+ fatal("setuid(0) failed with error: %s", strerror(errno));
|
||||
+ return -1;
|
||||
+ }
|
||||
return sock;
|
||||
}
|
||||
|
@ -1,21 +0,0 @@
|
||||
diff -up openssh-7.1p2/pam_ssh_agent_auth-0.10.2/pam_ssh_agent_auth.c.psaa-visibility openssh-7.1p2/pam_ssh_agent_auth-0.10.2/pam_ssh_agent_auth.c
|
||||
--- openssh-7.1p2/pam_ssh_agent_auth-0.10.2/pam_ssh_agent_auth.c.psaa-visibility 2014-03-31 19:35:17.000000000 +0200
|
||||
+++ openssh-7.1p2/pam_ssh_agent_auth-0.10.2/pam_ssh_agent_auth.c 2016-01-22 15:22:40.984469774 +0100
|
||||
@@ -72,7 +72,7 @@ char *__progname;
|
||||
extern char *__progname;
|
||||
#endif
|
||||
|
||||
-PAM_EXTERN int
|
||||
+PAM_EXTERN int __attribute__ ((visibility ("default")))
|
||||
pam_sm_authenticate(pam_handle_t * pamh, int flags, int argc, const char **argv)
|
||||
{
|
||||
char **argv_ptr;
|
||||
@@ -214,7 +214,7 @@ cleanexit:
|
||||
}
|
||||
|
||||
|
||||
-PAM_EXTERN int
|
||||
+PAM_EXTERN int __attribute__ ((visibility ("default")))
|
||||
pam_sm_setcred(pam_handle_t * pamh, int flags, int argc, const char **argv)
|
||||
{
|
||||
UNUSED(pamh);
|
@ -1,96 +0,0 @@
|
||||
diff -up openssh/pam_ssh_agent_auth-0.10.3/identity.h.psaa-agent openssh/pam_ssh_agent_auth-0.10.3/identity.h
|
||||
--- openssh/pam_ssh_agent_auth-0.10.3/identity.h.psaa-agent 2016-11-13 04:24:32.000000000 +0100
|
||||
+++ openssh/pam_ssh_agent_auth-0.10.3/identity.h 2017-09-27 14:25:49.421739027 +0200
|
||||
@@ -38,6 +38,12 @@
|
||||
typedef struct identity Identity;
|
||||
typedef struct idlist Idlist;
|
||||
|
||||
+typedef struct {
|
||||
+ int fd;
|
||||
+ struct sshbuf *identities;
|
||||
+ int howmany;
|
||||
+} AuthenticationConnection;
|
||||
+
|
||||
struct identity {
|
||||
TAILQ_ENTRY(identity) next;
|
||||
AuthenticationConnection *ac; /* set if agent supports key */
|
||||
diff -up openssh/pam_ssh_agent_auth-0.10.3/iterate_ssh_agent_keys.c.psaa-agent openssh/pam_ssh_agent_auth-0.10.3/iterate_ssh_agent_keys.c
|
||||
--- openssh/pam_ssh_agent_auth-0.10.3/iterate_ssh_agent_keys.c.psaa-agent 2017-09-27 14:25:49.420739021 +0200
|
||||
+++ openssh/pam_ssh_agent_auth-0.10.3/iterate_ssh_agent_keys.c 2017-09-27 14:25:49.421739027 +0200
|
||||
@@ -39,6 +39,7 @@
|
||||
#include "sshbuf.h"
|
||||
#include "sshkey.h"
|
||||
#include "authfd.h"
|
||||
+#include "ssherr.h"
|
||||
#include <stdio.h>
|
||||
#include <openssl/evp.h>
|
||||
#include "ssh2.h"
|
||||
@@ -291,36 +292,43 @@ pamsshagentauth_find_authorized_keys(con
|
||||
{
|
||||
struct sshbuf *session_id2 = NULL;
|
||||
Identity *id;
|
||||
- struct sshkey *key;
|
||||
AuthenticationConnection *ac;
|
||||
- char *comment;
|
||||
uint8_t retval = 0;
|
||||
uid_t uid = getpwnam(ruser)->pw_uid;
|
||||
+ struct ssh_identitylist *idlist;
|
||||
+ int r;
|
||||
+ unsigned int i;
|
||||
|
||||
OpenSSL_add_all_digests();
|
||||
pamsshagentauth_session_id2_gen(&session_id2, user, ruser, servicename);
|
||||
|
||||
if ((ac = ssh_get_authentication_connection_for_uid(uid))) {
|
||||
verbose("Contacted ssh-agent of user %s (%u)", ruser, uid);
|
||||
- for (key = ssh_get_first_identity(ac, &comment, 2); key != NULL; key = ssh_get_next_identity(ac, &comment, 2))
|
||||
- {
|
||||
- if(key != NULL) {
|
||||
+ if ((r = ssh_fetch_identitylist(ac->fd, &idlist)) != 0) {
|
||||
+ if (r != SSH_ERR_AGENT_NO_IDENTITIES)
|
||||
+ fprintf(stderr, "error fetching identities for "
|
||||
+ "protocol %d: %s\n", 2, ssh_err(r));
|
||||
+ } else {
|
||||
+ for (i = 0; i < idlist->nkeys; i++)
|
||||
+ {
|
||||
+ if (idlist->keys[i] != NULL) {
|
||||
id = xcalloc(1, sizeof(*id));
|
||||
- id->key = key;
|
||||
- id->filename = comment;
|
||||
+ id->key = idlist->keys[i];
|
||||
+ id->filename = idlist->comments[i];
|
||||
id->ac = ac;
|
||||
if(userauth_pubkey_from_id(ruser, id, session_id2)) {
|
||||
retval = 1;
|
||||
}
|
||||
- free(id->filename);
|
||||
- key_free(id->key);
|
||||
free(id);
|
||||
if(retval == 1)
|
||||
break;
|
||||
- }
|
||||
- }
|
||||
+ }
|
||||
+ }
|
||||
- sshbuf_free(session_id2);
|
||||
- ssh_close_authentication_connection(ac);
|
||||
+ sshbuf_free(session_id2);
|
||||
+ ssh_free_identitylist(idlist);
|
||||
+ }
|
||||
+ ssh_close_authentication_socket(ac->fd);
|
||||
+ free(ac);
|
||||
}
|
||||
else {
|
||||
verbose("No ssh-agent could be contacted");
|
||||
diff -up openssh/pam_ssh_agent_auth-0.10.3/userauth_pubkey_from_id.c.psaa-agent openssh/pam_ssh_agent_auth-0.10.3/userauth_pubkey_from_id.c
|
||||
--- openssh/pam_ssh_agent_auth-0.10.3/userauth_pubkey_from_id.c.psaa-agent 2017-09-27 14:25:49.420739021 +0200
|
||||
+++ openssh/pam_ssh_agent_auth-0.10.3/userauth_pubkey_from_id.c 2017-09-27 14:25:49.422739032 +0200
|
||||
@@ -84,7 +85,7 @@ userauth_pubkey_from_id(const char *ruse
|
||||
(r = sshbuf_put_string(b, pkblob, blen)) != 0)
|
||||
fatal("%s: buffer error: %s", __func__, ssh_err(r));
|
||||
|
||||
- if (ssh_agent_sign(id->ac, id->key, &sig, &slen, sshbuf_ptr(b), sshbuf_len(b)) != 0)
|
||||
+ if (ssh_agent_sign(id->ac->fd, id->key, &sig, &slen, sshbuf_ptr(b), sshbuf_len(b), NULL, 0) != 0)
|
||||
goto user_auth_clean_exit;
|
||||
|
||||
/* test for correct signature */
|
@ -1,198 +0,0 @@
|
||||
diff -up openssh-7.4p1/pam_ssh_agent_auth-0.10.3/iterate_ssh_agent_keys.c.psaa-build openssh-7.4p1/pam_ssh_agent_auth-0.10.3/iterate_ssh_agent_keys.c
|
||||
--- openssh-7.4p1/pam_ssh_agent_auth-0.10.3/iterate_ssh_agent_keys.c.psaa-build 2016-11-13 04:24:32.000000000 +0100
|
||||
+++ openssh-7.4p1/pam_ssh_agent_auth-0.10.3/iterate_ssh_agent_keys.c 2017-02-07 14:29:41.626116675 +0100
|
||||
@@ -43,12 +43,31 @@
|
||||
#include <openssl/evp.h>
|
||||
#include "ssh2.h"
|
||||
#include "misc.h"
|
||||
+#include "ssh.h"
|
||||
+#include <sys/types.h>
|
||||
+#include <sys/stat.h>
|
||||
+#include <sys/socket.h>
|
||||
+#include <sys/un.h>
|
||||
+#include <unistd.h>
|
||||
+#include <stdlib.h>
|
||||
+#include <errno.h>
|
||||
+#include <fcntl.h>
|
||||
|
||||
#include "userauth_pubkey_from_id.h"
|
||||
#include "identity.h"
|
||||
#include "get_command_line.h"
|
||||
extern char **environ;
|
||||
|
||||
+/*
|
||||
+ * Added by Jamie Beverly, ensure socket fd points to a socket owned by the user
|
||||
+ * A cursory check is done, but to avoid race conditions, it is necessary
|
||||
+ * to drop effective UID when connecting to the socket.
|
||||
+ *
|
||||
+ * If the cause of error is EACCES, because we verified we would not have that
|
||||
+ * problem initially, we can safely assume that somebody is attempting to find a
|
||||
+ * race condition; so a more "direct" log message is generated.
|
||||
+ */
|
||||
+
|
||||
static char *
|
||||
log_action(char ** action, size_t count)
|
||||
{
|
||||
@@ -85,7 +104,7 @@ void
|
||||
pamsshagentauth_session_id2_gen(Buffer * session_id2, const char * user,
|
||||
const char * ruser, const char * servicename)
|
||||
{
|
||||
- char *cookie = NULL;
|
||||
+ u_char *cookie = NULL;
|
||||
uint8_t i = 0;
|
||||
uint32_t rnd = 0;
|
||||
uint8_t cookie_len;
|
||||
@@ -112,7 +131,7 @@ pamsshagentauth_session_id2_gen(Buffer *
|
||||
if (i % 4 == 0) {
|
||||
rnd = pamsshagentauth_arc4random();
|
||||
}
|
||||
- cookie[i] = (char) rnd;
|
||||
+ cookie[i] = (u_char) rnd;
|
||||
rnd >>= 8;
|
||||
}
|
||||
|
||||
@@ -177,6 +196,86 @@ pamsshagentauth_session_id2_gen(Buffer *
|
||||
}
|
||||
|
||||
int
|
||||
+ssh_get_authentication_socket_for_uid(uid_t uid)
|
||||
+{
|
||||
+ const char *authsocket;
|
||||
+ int sock;
|
||||
+ struct sockaddr_un sunaddr;
|
||||
+ struct stat sock_st;
|
||||
+
|
||||
+ authsocket = getenv(SSH_AUTHSOCKET_ENV_NAME);
|
||||
+ if (!authsocket)
|
||||
+ return -1;
|
||||
+
|
||||
+ /* Advisory only; seteuid ensures no race condition; but will only log if we see EACCES */
|
||||
+ if( stat(authsocket,&sock_st) == 0) {
|
||||
+ if(uid != 0 && sock_st.st_uid != uid) {
|
||||
+ fatal("uid %lu attempted to open an agent socket owned by uid %lu", (unsigned long) uid, (unsigned long) sock_st.st_uid);
|
||||
+ return -1;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ /*
|
||||
+ * Ensures that the EACCES tested for below can _only_ happen if somebody
|
||||
+ * is attempting to race the stat above to bypass authentication.
|
||||
+ */
|
||||
+ if( (sock_st.st_mode & S_IWUSR) != S_IWUSR || (sock_st.st_mode & S_IRUSR) != S_IRUSR) {
|
||||
+ error("ssh-agent socket has incorrect permissions for owner");
|
||||
+ return -1;
|
||||
+ }
|
||||
+
|
||||
+ sunaddr.sun_family = AF_UNIX;
|
||||
+ strlcpy(sunaddr.sun_path, authsocket, sizeof(sunaddr.sun_path));
|
||||
+
|
||||
+ sock = socket(AF_UNIX, SOCK_STREAM, 0);
|
||||
+ if (sock < 0)
|
||||
+ return -1;
|
||||
+
|
||||
+ /* close on exec */
|
||||
+ if (fcntl(sock, F_SETFD, 1) == -1) {
|
||||
+ close(sock);
|
||||
+ return -1;
|
||||
+ }
|
||||
+
|
||||
+ errno = 0;
|
||||
+ seteuid(uid); /* To ensure a race condition is not used to circumvent the stat
|
||||
+ above, we will temporarily drop UID to the caller */
|
||||
+ if (connect(sock, (struct sockaddr *)&sunaddr, sizeof sunaddr) < 0) {
|
||||
+ close(sock);
|
||||
+ if(errno == EACCES)
|
||||
+ fatal("MAJOR SECURITY WARNING: uid %lu made a deliberate and malicious attempt to open an agent socket owned by another user", (unsigned long) uid);
|
||||
+ return -1;
|
||||
+ }
|
||||
+
|
||||
+ seteuid(0); /* we now continue the regularly scheduled programming */
|
||||
+
|
||||
+ return sock;
|
||||
+}
|
||||
+
|
||||
+AuthenticationConnection *
|
||||
+ssh_get_authentication_connection_for_uid(uid_t uid)
|
||||
+{
|
||||
+ AuthenticationConnection *auth;
|
||||
+ int sock;
|
||||
+
|
||||
+ sock = ssh_get_authentication_socket_for_uid(uid);
|
||||
+
|
||||
+ /*
|
||||
+ * Fail if we couldn't obtain a connection. This happens if we
|
||||
+ * exited due to a timeout.
|
||||
+ */
|
||||
+ if (sock < 0)
|
||||
+ return NULL;
|
||||
+
|
||||
+ auth = xmalloc(sizeof(*auth));
|
||||
+ auth->fd = sock;
|
||||
+ buffer_init(&auth->identities);
|
||||
+ auth->howmany = 0;
|
||||
+
|
||||
+ return auth;
|
||||
+}
|
||||
+
|
||||
+int
|
||||
pamsshagentauth_find_authorized_keys(const char * user, const char * ruser, const char * servicename)
|
||||
{
|
||||
Buffer session_id2 = { 0 };
|
||||
@@ -190,7 +289,7 @@ pamsshagentauth_find_authorized_keys(con
|
||||
OpenSSL_add_all_digests();
|
||||
pamsshagentauth_session_id2_gen(&session_id2, user, ruser, servicename);
|
||||
|
||||
- if ((ac = ssh_get_authentication_connection(uid))) {
|
||||
+ if ((ac = ssh_get_authentication_connection_for_uid(uid))) {
|
||||
pamsshagentauth_verbose("Contacted ssh-agent of user %s (%u)", ruser, uid);
|
||||
for (key = ssh_get_first_identity(ac, &comment, 2); key != NULL; key = ssh_get_next_identity(ac, &comment, 2))
|
||||
{
|
||||
diff -up openssh-7.4p1/pam_ssh_agent_auth-0.10.3/Makefile.in.psaa-build openssh-7.4p1/pam_ssh_agent_auth-0.10.3/Makefile.in
|
||||
--- openssh-7.4p1/pam_ssh_agent_auth-0.10.3/Makefile.in.psaa-build 2016-11-13 04:24:32.000000000 +0100
|
||||
+++ openssh-7.4p1/pam_ssh_agent_auth-0.10.3/Makefile.in 2017-02-07 14:40:14.407566921 +0100
|
||||
@@ -52,7 +52,7 @@ PATHS=
|
||||
CC=@CC@
|
||||
LD=@LD@
|
||||
CFLAGS=@CFLAGS@
|
||||
-CPPFLAGS=-I. -I$(srcdir) @CPPFLAGS@ $(PATHS) @DEFS@
|
||||
+CPPFLAGS=-I.. -I$(srcdir) @CPPFLAGS@ $(PATHS) @DEFS@
|
||||
LIBS=@LIBS@
|
||||
AR=@AR@
|
||||
AWK=@AWK@
|
||||
@@ -61,8 +61,8 @@ INSTALL=@INSTALL@
|
||||
PERL=@PERL@
|
||||
SED=@SED@
|
||||
ENT=@ENT@
|
||||
-LDFLAGS=-L. -Lopenbsd-compat/ @LDFLAGS@
|
||||
-LDFLAGS_SHARED = @LDFLAGS_SHARED@
|
||||
+LDFLAGS=-L.. -L../openbsd-compat/ @LDFLAGS@
|
||||
+LDFLAGS_SHARED =-Wl,-z,defs @LDFLAGS_SHARED@
|
||||
EXEEXT=@EXEEXT@
|
||||
|
||||
INSTALL_SSH_PRNG_CMDS=@INSTALL_SSH_PRNG_CMDS@
|
||||
@@ -74,7 +74,7 @@ SSHOBJS=xmalloc.o atomicio.o authfd.o bu
|
||||
|
||||
ED25519OBJS=ed25519-donna/ed25519.o
|
||||
|
||||
-PAM_SSH_AGENT_AUTH_OBJS=pam_user_key_allowed2.o iterate_ssh_agent_keys.o userauth_pubkey_from_id.o pam_user_authorized_keys.o get_command_line.o userauth_pubkey_from_pam.o
|
||||
+PAM_SSH_AGENT_AUTH_OBJS=pam_user_key_allowed2.o iterate_ssh_agent_keys.o userauth_pubkey_from_id.o pam_user_authorized_keys.o get_command_line.o userauth_pubkey_from_pam.o secure_filename.o
|
||||
|
||||
|
||||
MANPAGES_IN = pam_ssh_agent_auth.pod
|
||||
@@ -94,13 +94,13 @@ $(PAM_MODULES): Makefile.in config.h
|
||||
.c.o:
|
||||
$(CC) $(CFLAGS) $(CPPFLAGS) -c $< -o $@
|
||||
|
||||
-LIBCOMPAT=openbsd-compat/libopenbsd-compat.a
|
||||
+LIBCOMPAT=../openbsd-compat/libopenbsd-compat.a
|
||||
$(LIBCOMPAT): always
|
||||
(cd openbsd-compat && $(MAKE))
|
||||
always:
|
||||
|
||||
-pam_ssh_agent_auth.so: $(LIBCOMPAT) $(SSHOBJS) $(ED25519OBJS) $(PAM_SSH_AGENT_AUTH_OBJS) pam_ssh_agent_auth.o
|
||||
- $(LD) $(LDFLAGS_SHARED) -o $@ $(SSHOBJS) $(ED25519OBJS) $(PAM_SSH_AGENT_AUTH_OBJS) $(LDFLAGS) -lopenbsd-compat pam_ssh_agent_auth.o $(LIBS) -lpam
|
||||
+pam_ssh_agent_auth.so: $(PAM_SSH_AGENT_AUTH_OBJS) pam_ssh_agent_auth.o ../uidswap.o ../ssh-sk-client.o
|
||||
+ $(LD) $(LDFLAGS_SHARED) -o $@ $(PAM_SSH_AGENT_AUTH_OBJS) ../ssh-sk-client.o $(LDFLAGS) -lssh -lopenbsd-compat pam_ssh_agent_auth.o ../uidswap.o $(LIBS) -lpam
|
||||
|
||||
$(MANPAGES): $(MANPAGES_IN)
|
||||
pod2man --section=8 --release=v0.10.3 --name=pam_ssh_agent_auth --official --center "PAM" pam_ssh_agent_auth.pod > pam_ssh_agent_auth.8
|
5
sources
5
sources
@ -1,4 +1 @@
|
||||
SHA512 (openssh-8.4p1.tar.gz) = d65275b082c46c5efe7cf3264fa6794d6e99a36d4a54b50554fc56979d6c0837381587fd5399195e1db680d2a5ad1ef0b99a180eac2b4de5637906cb7a89e9ce
|
||||
SHA512 (openssh-8.4p1.tar.gz.asc) = 3d9a026db27729a5a56785db3824230ccf2a3beca4bb48ef465e44d869b944dbc5d443152a1b1be21bc9c213c465d3d7ca1f876a387d0a6b9682a0cfec3e6e32
|
||||
SHA512 (pam_ssh_agent_auth-0.10.4.tar.gz) = caccf72174d15e43f4c86a459ac6448682e62116557cf1e1e828955f3d1731595b238df42adec57860e7f341e92daf5d8285020bcb5018f3b8a5145aa32ee1c2
|
||||
SHA512 (DJM-GPG-KEY.gpg) = db1191ed9b6495999e05eed2ef863fb5179bdb63e94850f192dad68eed8579836f88fbcfffd9f28524fe1457aff8cd248ee3e0afc112c8f609b99a34b80ecc0d
|
||||
8dcce96be628a67ce992f089d9db81ff openssh-4.3p2-noacss.tar.bz2
|
||||
|
@ -1,8 +0,0 @@
|
||||
#%PAM-1.0
|
||||
# pam_selinux.so close should be the first session rule
|
||||
session required pam_selinux.so close
|
||||
session required pam_loginuid.so
|
||||
# pam_selinux.so open should only be followed by sessions to be executed in the user context
|
||||
session required pam_selinux.so open env_params
|
||||
session required pam_namespace.so
|
||||
|
40
sshd-keygen
40
sshd-keygen
@ -1,40 +0,0 @@
|
||||
#!/bin/bash
|
||||
|
||||
# Create the host keys for the OpenSSH server.
|
||||
KEYTYPE=$1
|
||||
case $KEYTYPE in
|
||||
"dsa") ;& # disabled in FIPS
|
||||
"ed25519")
|
||||
FIPS=/proc/sys/crypto/fips_enabled
|
||||
if [[ -r "$FIPS" && $(cat $FIPS) == "1" ]]; then
|
||||
exit 0
|
||||
fi ;;
|
||||
"rsa") ;; # always ok
|
||||
"ecdsa") ;;
|
||||
*) # wrong argument
|
||||
exit 12 ;;
|
||||
esac
|
||||
KEY=/etc/ssh/ssh_host_${KEYTYPE}_key
|
||||
|
||||
KEYGEN=/usr/bin/ssh-keygen
|
||||
if [[ ! -x $KEYGEN ]]; then
|
||||
exit 13
|
||||
fi
|
||||
|
||||
# remove old keys
|
||||
rm -f $KEY{,.pub}
|
||||
|
||||
# create new keys
|
||||
if ! $KEYGEN -q -t $KEYTYPE -f $KEY -C '' -N '' >&/dev/null; then
|
||||
exit 1
|
||||
fi
|
||||
|
||||
# sanitize permissions
|
||||
/usr/bin/chgrp ssh_keys $KEY
|
||||
/usr/bin/chmod 640 $KEY
|
||||
/usr/bin/chmod 644 $KEY.pub
|
||||
if [[ -x /usr/sbin/restorecon ]]; then
|
||||
/usr/sbin/restorecon $KEY{,.pub}
|
||||
fi
|
||||
|
||||
exit 0
|
@ -1,5 +0,0 @@
|
||||
[Unit]
|
||||
Wants=sshd-keygen@rsa.service
|
||||
Wants=sshd-keygen@ecdsa.service
|
||||
Wants=sshd-keygen@ed25519.service
|
||||
PartOf=sshd.service
|
@ -1,11 +0,0 @@
|
||||
[Unit]
|
||||
Description=OpenSSH %i Server Key Generation
|
||||
ConditionFileNotEmpty=|!/etc/ssh/ssh_host_%i_key
|
||||
|
||||
[Service]
|
||||
Type=oneshot
|
||||
EnvironmentFile=-/etc/sysconfig/sshd
|
||||
ExecStart=/usr/libexec/openssh/sshd-keygen %i
|
||||
|
||||
[Install]
|
||||
WantedBy=sshd-keygen.target
|
17
sshd.pam
17
sshd.pam
@ -1,17 +0,0 @@
|
||||
#%PAM-1.0
|
||||
auth substack password-auth
|
||||
auth include postlogin
|
||||
account required pam_sepermit.so
|
||||
account required pam_nologin.so
|
||||
account include password-auth
|
||||
password include password-auth
|
||||
# pam_selinux.so close should be the first session rule
|
||||
session required pam_selinux.so close
|
||||
session required pam_loginuid.so
|
||||
# pam_selinux.so open should only be followed by sessions to be executed in the user context
|
||||
session required pam_selinux.so open env_params
|
||||
session required pam_namespace.so
|
||||
session optional pam_keyinit.so force revoke
|
||||
session optional pam_motd.so
|
||||
session include password-auth
|
||||
session include postlogin
|
17
sshd.service
17
sshd.service
@ -1,17 +0,0 @@
|
||||
[Unit]
|
||||
Description=OpenSSH server daemon
|
||||
Documentation=man:sshd(8) man:sshd_config(5)
|
||||
After=network.target sshd-keygen.target
|
||||
Wants=sshd-keygen.target
|
||||
|
||||
[Service]
|
||||
Type=notify
|
||||
EnvironmentFile=-/etc/sysconfig/sshd
|
||||
ExecStart=/usr/sbin/sshd -D $OPTIONS
|
||||
ExecReload=/bin/kill -HUP $MAINPID
|
||||
KillMode=process
|
||||
Restart=on-failure
|
||||
RestartSec=42s
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
11
sshd.socket
11
sshd.socket
@ -1,11 +0,0 @@
|
||||
[Unit]
|
||||
Description=OpenSSH Server Socket
|
||||
Documentation=man:sshd(8) man:sshd_config(5)
|
||||
Conflicts=sshd.service
|
||||
|
||||
[Socket]
|
||||
ListenStream=22
|
||||
Accept=yes
|
||||
|
||||
[Install]
|
||||
WantedBy=sockets.target
|
@ -1,7 +0,0 @@
|
||||
# Configuration file for the sshd service.
|
||||
|
||||
# The server keys are automatically generated if they are missing.
|
||||
# To change the automatic creation, adjust sshd.service options for
|
||||
# example using systemctl enable sshd-keygen@dsa.service to allow creation
|
||||
# of DSA key or systemctl mask sshd-keygen@rsa.service to disable RSA key
|
||||
# creation.
|
@ -1 +0,0 @@
|
||||
d /var/empty/sshd 711 root root -
|
@ -1,10 +0,0 @@
|
||||
[Unit]
|
||||
Description=OpenSSH per-connection server daemon
|
||||
Documentation=man:sshd(8) man:sshd_config(5)
|
||||
Wants=sshd-keygen.target
|
||||
After=sshd-keygen.target
|
||||
|
||||
[Service]
|
||||
EnvironmentFile=-/etc/sysconfig/sshd
|
||||
ExecStart=-/usr/sbin/sshd -i $OPTIONS
|
||||
StandardInput=socket
|
@ -1,64 +0,0 @@
|
||||
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
#
|
||||
# Makefile of /CoreOS/openssh/Sanity/pam_ssh_agent_auth
|
||||
# Description: This is a basic sanity test for pam_ssh_agent_auth
|
||||
# Author: Jakub Jelen <jjelen@redhat.com>
|
||||
#
|
||||
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
#
|
||||
# Copyright (c) 2015 Red Hat, Inc.
|
||||
#
|
||||
# This program is free software: you can redistribute it and/or
|
||||
# modify it under the terms of the GNU General Public License as
|
||||
# published by the Free Software Foundation, either version 2 of
|
||||
# the License, or (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be
|
||||
# useful, but WITHOUT ANY WARRANTY; without even the implied
|
||||
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
||||
# PURPOSE. See the GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program. If not, see http://www.gnu.org/licenses/.
|
||||
#
|
||||
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
|
||||
export TEST=/CoreOS/openssh/Sanity/pam_ssh_agent_auth
|
||||
export TESTVERSION=1.0
|
||||
|
||||
BUILT_FILES=
|
||||
|
||||
FILES=$(METADATA) runtest.sh Makefile PURPOSE pam_save_ssh_var.c
|
||||
|
||||
.PHONY: all install download clean
|
||||
|
||||
run: $(FILES) build
|
||||
./runtest.sh
|
||||
|
||||
build: $(BUILT_FILES)
|
||||
test -x runtest.sh || chmod a+x runtest.sh
|
||||
|
||||
clean:
|
||||
rm -f *~ $(BUILT_FILES)
|
||||
|
||||
|
||||
-include /usr/share/rhts/lib/rhts-make.include
|
||||
|
||||
$(METADATA): Makefile
|
||||
@echo "Owner: Jakub Jelen <jjelen@redhat.com>" > $(METADATA)
|
||||
@echo "Name: $(TEST)" >> $(METADATA)
|
||||
@echo "TestVersion: $(TESTVERSION)" >> $(METADATA)
|
||||
@echo "Path: $(TEST_DIR)" >> $(METADATA)
|
||||
@echo "Description: This is basic sanity test for pam_ssh_agent_auth" >> $(METADATA)
|
||||
@echo "Type: Sanity" >> $(METADATA)
|
||||
@echo "TestTime: 5m" >> $(METADATA)
|
||||
@echo "RunFor: openssh" >> $(METADATA)
|
||||
@echo "Requires: openssh pam_ssh_agent_auth pam-devel expect" >> $(METADATA)
|
||||
@echo "RhtsRequires: library(distribution/fips)" >> $(METADATA)
|
||||
@echo "Priority: Normal" >> $(METADATA)
|
||||
@echo "License: GPLv2+" >> $(METADATA)
|
||||
@echo "Confidential: no" >> $(METADATA)
|
||||
@echo "Destructive: no" >> $(METADATA)
|
||||
@echo "Releases: -RHEL4 -RHELClient5 -RHELServer5" >> $(METADATA)
|
||||
|
||||
rhts-lint $(METADATA)
|
@ -1,7 +0,0 @@
|
||||
PURPOSE of /CoreOS/openssh/Sanity/pam_ssh_agent_auth
|
||||
Description: This is basic sanity test for pam_ssh_agent_auth
|
||||
Author: Jakub Jelen <jjelen@redhat.com>
|
||||
|
||||
Created as a response to rhbz#1251777 and previous one rhbz#1225106.
|
||||
The code of pam module is outdated and compiled with current openssh
|
||||
version which went through quite enough refactoring.
|
@ -1,73 +0,0 @@
|
||||
/*
|
||||
This simple pam module saves the content of SSH_USER_AUTH variable to /tmp/SSH_USER_AUTH
|
||||
file.
|
||||
|
||||
Setup:
|
||||
- gcc -fPIC -DPIC -shared -rdynamic -o pam_save_ssh_var.o pam_save_ssh_var.c
|
||||
- copy pam_save_ssh_var.o to /lib/security resp. /lib64/security
|
||||
- add to /etc/pam.d/sshd
|
||||
auth requisite pam_save_ssh_var.o
|
||||
*/
|
||||
|
||||
/* Define which PAM interfaces we provide */
|
||||
#define PAM_SM_ACCOUNT
|
||||
#define PAM_SM_AUTH
|
||||
#define PAM_SM_PASSWORD
|
||||
#define PAM_SM_SESSION
|
||||
|
||||
/* Include PAM headers */
|
||||
#include <security/pam_appl.h>
|
||||
#include <security/pam_modules.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
|
||||
int save_ssh_var(pam_handle_t *pamh, const char *phase) {
|
||||
FILE *fp;
|
||||
const char *var;
|
||||
|
||||
fp = fopen("/tmp/SSH_USER_AUTH","a");
|
||||
fprintf(fp, "BEGIN (%s)\n", phase);
|
||||
var = pam_getenv(pamh, "SSH_USER_AUTH");
|
||||
if (var != NULL) {
|
||||
fprintf(fp, "SSH_USER_AUTH: '%s'\n", var);
|
||||
}
|
||||
fprintf(fp, "END (%s)\n", phase);
|
||||
fclose(fp);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* PAM entry point for session creation */
|
||||
int pam_sm_open_session(pam_handle_t *pamh, int flags, int argc, const char **argv) {
|
||||
return(PAM_IGNORE);
|
||||
}
|
||||
|
||||
/* PAM entry point for session cleanup */
|
||||
int pam_sm_close_session(pam_handle_t *pamh, int flags, int argc, const char **argv) {
|
||||
return(PAM_IGNORE);
|
||||
}
|
||||
|
||||
/* PAM entry point for accounting */
|
||||
int pam_sm_acct_mgmt(pam_handle_t *pamh, int flags, int argc, const char **argv) {
|
||||
return(PAM_IGNORE);
|
||||
}
|
||||
|
||||
/* PAM entry point for authentication verification */
|
||||
int pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc, const char **argv) {
|
||||
save_ssh_var(pamh, "auth");
|
||||
return(PAM_IGNORE);
|
||||
}
|
||||
|
||||
/*
|
||||
PAM entry point for setting user credentials (that is, to actually
|
||||
establish the authenticated user's credentials to the service provider)
|
||||
*/
|
||||
int pam_sm_setcred(pam_handle_t *pamh, int flags, int argc, const char **argv) {
|
||||
return(PAM_IGNORE);
|
||||
}
|
||||
|
||||
/* PAM entry point for authentication token (password) changes */
|
||||
int pam_sm_chauthtok(pam_handle_t *pamh, int flags, int argc, const char **argv) {
|
||||
return(PAM_IGNORE);
|
||||
}
|
||||
|
@ -1,184 +0,0 @@
|
||||
#!/bin/bash
|
||||
# vim: dict+=/usr/share/beakerlib/dictionary.vim cpt=.,w,b,u,t,i,k
|
||||
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
#
|
||||
# runtest.sh of /CoreOS/openssh/Sanity/pam_ssh_agent_auth
|
||||
# Description: This is a basic sanity test for pam_ssh_agent_auth
|
||||
# Author: Jakub Jelen <jjelen@redhat.com>
|
||||
#
|
||||
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
#
|
||||
# Copyright (c) 2015 Red Hat, Inc.
|
||||
#
|
||||
# This program is free software: you can redistribute it and/or
|
||||
# modify it under the terms of the GNU General Public License as
|
||||
# published by the Free Software Foundation, either version 2 of
|
||||
# the License, or (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be
|
||||
# useful, but WITHOUT ANY WARRANTY; without even the implied
|
||||
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
||||
# PURPOSE. See the GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program. If not, see http://www.gnu.org/licenses/.
|
||||
#
|
||||
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
|
||||
# Include Beaker environment
|
||||
. /usr/bin/rhts-environment.sh || exit 1
|
||||
. /usr/share/beakerlib/beakerlib.sh || exit 1
|
||||
|
||||
PACKAGE="openssh"
|
||||
PAM_SUDO="/etc/pam.d/sudo"
|
||||
PAM_SSHD="/etc/pam.d/sshd"
|
||||
PAM_MODULE="pam_save_ssh_var"
|
||||
SUDOERS_CFG="/etc/sudoers.d/01_pam_ssh_auth"
|
||||
SSHD_CFG="/etc/ssh/sshd_config"
|
||||
USER="testuser$RANDOM"
|
||||
PASS="testpassxy4re.3298fhdsaf"
|
||||
AUTH_KEYS="/etc/security/authorized_keys"
|
||||
AK_COMMAND_BIN="/root/ak.sh"
|
||||
AK_COMMAND_KEYS="/root/akeys"
|
||||
declare -a KEYS=("rsa" "ecdsa")
|
||||
|
||||
rlJournalStart
|
||||
rlPhaseStartSetup
|
||||
rlAssertRpm $PACKAGE
|
||||
rlAssertRpm pam_ssh_agent_auth
|
||||
rlImport distribution/fips
|
||||
rlServiceStart sshd
|
||||
rlRun "TmpDir=\$(mktemp -d)" 0 "Creating tmp directory"
|
||||
rlRun "cp ${PAM_MODULE}.c $TmpDir/"
|
||||
rlRun "pushd $TmpDir"
|
||||
rlFileBackup --clean $PAM_SUDO /etc/sudoers /etc/sudoers.d/ /etc/security/ $AUTH_KEYS
|
||||
rlRun "sed -i '1 a\
|
||||
auth sufficient pam_ssh_agent_auth.so file=$AUTH_KEYS' $PAM_SUDO"
|
||||
rlRun "echo 'Defaults env_keep += \"SSH_AUTH_SOCK\"' > $SUDOERS_CFG"
|
||||
rlRun "echo 'Defaults !requiretty' >> $SUDOERS_CFG"
|
||||
grep '^%wheel' /etc/sudoers || \
|
||||
rlRun "echo '%wheel ALL=(ALL) ALL' >> $SUDOERS_CFG"
|
||||
rlRun "useradd $USER -G wheel"
|
||||
rlRun "echo $PASS |passwd --stdin $USER"
|
||||
rlPhaseEnd
|
||||
|
||||
if ! fipsIsEnabled; then
|
||||
KEYS+=("dsa")
|
||||
fi
|
||||
|
||||
for KEY in "${KEYS[@]}"; do
|
||||
rlPhaseStartTest "Test with key type $KEY"
|
||||
rlRun "su $USER -c 'ssh-keygen -t $KEY -f ~/.ssh/my_id_$KEY -N \"\"'" 0
|
||||
|
||||
# Without authorized_keys, the authentication should fail
|
||||
rlRun -s "su $USER -c 'eval \`ssh-agent\`; sudo id; ssh-agent -k'" 0
|
||||
rlAssertNotGrep "uid=0(root) gid=0(root)" $rlRun_LOG
|
||||
|
||||
# Append the keys only to make sure we can match also the non-first line
|
||||
rlRun "cat ~$USER/.ssh/my_id_${KEY}.pub >> $AUTH_KEYS"
|
||||
rlRun -s "su $USER -c 'eval \`ssh-agent\`; ssh-add ~/.ssh/my_id_$KEY; sudo id; ssh-agent -k'"
|
||||
rlAssertGrep "uid=0(root) gid=0(root)" $rlRun_LOG
|
||||
rlPhaseEnd
|
||||
done
|
||||
|
||||
if rlIsRHEL '<6.8' || ( rlIsRHEL '<7.3' && rlIsRHEL 7 ) ; then
|
||||
: # not available
|
||||
else
|
||||
rlPhaseStartSetup "Setup for authorized_keys_command"
|
||||
rlFileBackup --namespace ak_command $PAM_SUDO
|
||||
rlRun "rm -f $AUTH_KEYS"
|
||||
cat >$AK_COMMAND_BIN <<_EOF
|
||||
#!/bin/bash
|
||||
cat $AK_COMMAND_KEYS
|
||||
_EOF
|
||||
rlRun "chmod +x $AK_COMMAND_BIN"
|
||||
rlRun "sed -i 's|.*pam_ssh_agent_auth.*|auth sufficient pam_ssh_agent_auth.so authorized_keys_command=$AK_COMMAND_BIN authorized_keys_command_user=root|' $PAM_SUDO"
|
||||
rlRun "cat $PAM_SUDO"
|
||||
rlPhaseEnd
|
||||
|
||||
for KEY in "${KEYS[@]}"; do
|
||||
rlPhaseStartTest "Test authorized_keys_command with key type $KEY (bz1299555, bz1317858)"
|
||||
rlRun "cat ~$USER/.ssh/my_id_${KEY}.pub >$AK_COMMAND_KEYS"
|
||||
rlRun -s "su $USER -c 'eval \`ssh-agent\`; ssh-add ~/.ssh/my_id_$KEY; sudo id; ssh-agent -k'"
|
||||
rlAssertGrep "uid=0(root) gid=0(root)" $rlRun_LOG
|
||||
rlPhaseEnd
|
||||
done
|
||||
|
||||
rlPhaseStartCleanup "Cleanup for authorized_keys_command"
|
||||
rlFileRestore --namespace ak_command
|
||||
rlRun "rm -f $AK_COMMAND_BIN $AK_COMMAND_KEYS"
|
||||
rlPhaseEnd
|
||||
fi
|
||||
|
||||
if rlIsRHEL '>=7.3'; then # not in Fedora anymore
|
||||
rlPhaseStartTest "bz1312304 - Exposing information about succesful auth"
|
||||
rlRun "rlFileBackup --namespace exposing $PAM_SSHD"
|
||||
rlRun "rlFileBackup --namespace exposing $SSHD_CFG"
|
||||
rlRun "rlFileBackup --namespace exposing /root/.ssh/"
|
||||
rlRun "rm -f ~/.ssh/id_rsa*"
|
||||
rlRun "ssh-keygen -f ~/.ssh/id_rsa -N \"\"" 0
|
||||
rlRun "ssh-keyscan localhost >~/.ssh/known_hosts" 0
|
||||
USER_AK_FILE=~$USER/.ssh/authorized_keys
|
||||
rlRun "cat ~/.ssh/id_rsa.pub >$USER_AK_FILE"
|
||||
rlRun "chown $USER:$USER $USER_AK_FILE"
|
||||
rlRun "chmod 0600 $USER_AK_FILE"
|
||||
rlRun "gcc -fPIC -DPIC -shared -rdynamic -o $PAM_MODULE.o $PAM_MODULE.c"
|
||||
rlRun "test -d /lib64/security && cp $PAM_MODULE.o /lib64/security/" 0,1
|
||||
rlRun "test -d /lib/security && cp $PAM_MODULE.o /lib/security/" 0,1
|
||||
rlRun "sed -i '1 i auth optional $PAM_MODULE.o' $PAM_SSHD"
|
||||
|
||||
# pam-and-env should expose information to both PAM and environmental variable;
|
||||
# we will be testing only env variable here for the time being,
|
||||
rlRun "echo 'ExposeAuthenticationMethods pam-and-env' >>$SSHD_CFG"
|
||||
rlRun "sed -i '/^ChallengeResponseAuthentication/ d' $SSHD_CFG"
|
||||
rlRun "service sshd restart"
|
||||
rlWaitForSocket 22 -t 5
|
||||
rlRun -s "ssh -i ~/.ssh/id_rsa $USER@localhost \"env|grep SSH_USER_AUTH\"" 0 \
|
||||
"Environment variable SSH_USER_AUTH is set"
|
||||
rlAssertGrep "^SSH_USER_AUTH=publickey:" $rlRun_LOG
|
||||
rlRun "rm -f $rlRun_LOG"
|
||||
|
||||
# pam-only should expose information only to PAM and not to environment variable
|
||||
rlRun "sed -i 's/pam-and-env/pam-only/' $SSHD_CFG"
|
||||
rlRun "echo 'AuthenticationMethods publickey,keyboard-interactive:pam' >>$SSHD_CFG"
|
||||
rlRun "service sshd restart"
|
||||
rlWaitForSocket 22 -t 5
|
||||
ssh_with_pass() {
|
||||
ssh_args=("-i /root/.ssh/id_rsa")
|
||||
ssh_args+=("$USER@localhost")
|
||||
cat >ssh.exp <<_EOF
|
||||
#!/usr/bin/expect -f
|
||||
|
||||
set timeout 5
|
||||
spawn ssh ${ssh_args[*]} "echo CONNECTED; env|grep SSH_USER_AUTH"
|
||||
expect {
|
||||
-re {.*[Pp]assword.*} { send -- "$PASS\r"; exp_continue }
|
||||
timeout { exit 1 }
|
||||
eof { exit 0 }
|
||||
}
|
||||
_EOF
|
||||
rlRun -s "expect -f ssh.exp"
|
||||
}
|
||||
#rlRun -s "ssh ${ssh_args[*]} \"echo CONNECTED; env|grep SSH_USER_AUTH\"" 1 \
|
||||
#"Environment variable SSH_USER_AUTH is NOT set"
|
||||
rlRun "ssh_with_pass"
|
||||
rlRun "grep -q CONNECTED $rlRun_LOG" 0 "Connection was successful"
|
||||
rlAssertGrep "^SSH_USER_AUTH: 'publickey:" /tmp/SSH_USER_AUTH
|
||||
rlRun "cat /tmp/SSH_USER_AUTH"
|
||||
rlRun "rm -f $rlRun_LOG /tmp/SSH_USER_AUTH"
|
||||
for pm in /lib64/security/$PAM_MODULE.o /lib/security/$PAM_MODULE.o; do
|
||||
rlRun "test -e $pm && rm -f $pm" 0,1
|
||||
done
|
||||
rlRun "rlFileRestore --namespace exposing"
|
||||
rlPhaseEnd
|
||||
fi
|
||||
|
||||
rlPhaseStartCleanup
|
||||
rlRun "popd"
|
||||
rlRun "rm -r $TmpDir" 0 "Removing tmp directory"
|
||||
rlRun "userdel -fr $USER"
|
||||
rlFileRestore
|
||||
rlServiceRestore sshd
|
||||
rlPhaseEnd
|
||||
rlJournalPrintText
|
||||
rlJournalEnd
|
@ -1,63 +0,0 @@
|
||||
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
#
|
||||
# Makefile of /CoreOS/openssh/Sanity/port-forwarding
|
||||
# Description: Testing port forwarding (ideally all possibilities: -L, -R, -D)
|
||||
# Author: Stanislav Zidek <szidek@redhat.com>
|
||||
#
|
||||
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
#
|
||||
# Copyright (c) 2015 Red Hat, Inc.
|
||||
#
|
||||
# This program is free software: you can redistribute it and/or
|
||||
# modify it under the terms of the GNU General Public License as
|
||||
# published by the Free Software Foundation, either version 2 of
|
||||
# the License, or (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be
|
||||
# useful, but WITHOUT ANY WARRANTY; without even the implied
|
||||
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
||||
# PURPOSE. See the GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program. If not, see http://www.gnu.org/licenses/.
|
||||
#
|
||||
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
|
||||
export TEST=/CoreOS/openssh/Sanity/port-forwarding
|
||||
export TESTVERSION=1.0
|
||||
|
||||
BUILT_FILES=
|
||||
|
||||
FILES=$(METADATA) runtest.sh Makefile PURPOSE
|
||||
|
||||
.PHONY: all install download clean
|
||||
|
||||
run: $(FILES) build
|
||||
./runtest.sh
|
||||
|
||||
build: $(BUILT_FILES)
|
||||
test -x runtest.sh || chmod a+x runtest.sh
|
||||
|
||||
clean:
|
||||
rm -f *~ $(BUILT_FILES)
|
||||
|
||||
|
||||
-include /usr/share/rhts/lib/rhts-make.include
|
||||
|
||||
$(METADATA): Makefile
|
||||
@echo "Owner: Stanislav Zidek <szidek@redhat.com>" > $(METADATA)
|
||||
@echo "Name: $(TEST)" >> $(METADATA)
|
||||
@echo "TestVersion: $(TESTVERSION)" >> $(METADATA)
|
||||
@echo "Path: $(TEST_DIR)" >> $(METADATA)
|
||||
@echo "Description: Testing port forwarding (ideally all possibilities: -L, -R, -D)" >> $(METADATA)
|
||||
@echo "Type: Sanity" >> $(METADATA)
|
||||
@echo "TestTime: 5m" >> $(METADATA)
|
||||
@echo "RunFor: openssh" >> $(METADATA)
|
||||
@echo "Requires: openssh net-tools nc" >> $(METADATA)
|
||||
@echo "Priority: Normal" >> $(METADATA)
|
||||
@echo "License: GPLv2+" >> $(METADATA)
|
||||
@echo "Confidential: yes" >> $(METADATA)
|
||||
@echo "Destructive: no" >> $(METADATA)
|
||||
@echo "Releases: -RHEL4 -RHELClient5 -RHELServer5" >> $(METADATA)
|
||||
|
||||
rhts-lint $(METADATA)
|
@ -1,3 +0,0 @@
|
||||
PURPOSE of /CoreOS/openssh/Sanity/port-forwarding
|
||||
Description: Testing port forwarding (ideally all possibilities: -L, -R, -D)
|
||||
Author: Stanislav Zidek <szidek@redhat.com>
|
@ -1,152 +0,0 @@
|
||||
#!/bin/bash
|
||||
# vim: dict+=/usr/share/beakerlib/dictionary.vim cpt=.,w,b,u,t,i,k
|
||||
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
#
|
||||
# runtest.sh of /CoreOS/openssh/Sanity/port-forwarding
|
||||
# Description: Testing port forwarding (ideally all possibilities: -L, -R, -D)
|
||||
# Author: Stanislav Zidek <szidek@redhat.com>
|
||||
#
|
||||
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
#
|
||||
# Copyright (c) 2015 Red Hat, Inc.
|
||||
#
|
||||
# This program is free software: you can redistribute it and/or
|
||||
# modify it under the terms of the GNU General Public License as
|
||||
# published by the Free Software Foundation, either version 2 of
|
||||
# the License, or (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be
|
||||
# useful, but WITHOUT ANY WARRANTY; without even the implied
|
||||
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
||||
# PURPOSE. See the GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program. If not, see http://www.gnu.org/licenses/.
|
||||
#
|
||||
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
|
||||
# Include Beaker environment
|
||||
. /usr/share/beakerlib/beakerlib.sh || exit 1
|
||||
|
||||
PACKAGE="openssh"
|
||||
USER="user$RANDOM"
|
||||
FORWARDED=$((RANDOM % 100 + 6800))
|
||||
LISTEN=$((RANDOM % 100 + 6900))
|
||||
TIMEOUT=5
|
||||
MESSAGE="HUGE_SUCCESS"
|
||||
SSH_OPTIONS="-o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no"
|
||||
|
||||
rlJournalStart
|
||||
rlPhaseStartSetup
|
||||
rlAssertRpm $PACKAGE
|
||||
rlFileBackup /etc/ssh/sshd_config
|
||||
rlRun "useradd -m $USER"
|
||||
rlRun "su - $USER -c \"mkdir .ssh; chmod 700 .ssh; cd .ssh; ssh-keygen -N '' -f id_rsa; cat id_rsa.pub >authorized_keys; chmod 600 authorized_keys\""
|
||||
rlRun "echo 'LogLevel DEBUG' >>/etc/ssh/sshd_config"
|
||||
rlServiceStart sshd
|
||||
rlRun "IP=\$( ip a |grep 'scope global' |grep -w inet |cut -d'/' -f1 |awk '{ print \$2 }' |tail -1 )"
|
||||
rlRun "echo 'IP=$IP'"
|
||||
rlRun "TmpDir=\$(mktemp -d)" 0 "Creating tmp directory"
|
||||
rlRun "pushd $TmpDir"
|
||||
rlPhaseEnd
|
||||
|
||||
forwarding_test() {
|
||||
EXP_RESULT=$1
|
||||
FORWARDED=$2
|
||||
HOST=$3
|
||||
LISTEN=$4
|
||||
|
||||
rlRun "nc -l $LISTEN &>listen.log &"
|
||||
LISTEN_PID=$!
|
||||
rlWaitForSocket $LISTEN -t $TIMEOUT
|
||||
rlRun "ps -fp $LISTEN_PID"
|
||||
rlRun "su - $USER -c \"ssh $SSH_OPTIONS -N -L $FORWARDED:$HOST:$LISTEN $USER@localhost &\" &>tunnel.log"
|
||||
rlRun "ps -fC ssh"
|
||||
rlRun "SSH_PID=\$( pgrep -n -u $USER ssh )"
|
||||
rlRun "echo SSH_PID is '$SSH_PID'"
|
||||
rlWaitForSocket $FORWARDED -t $TIMEOUT
|
||||
rlRun "[[ -n '$SSH_PID' ]] && ps -fp $SSH_PID"
|
||||
rlRun "echo '$MESSAGE'|nc localhost $FORWARDED" 0,1
|
||||
|
||||
if [[ $EXP_RESULT == "success" ]]; then
|
||||
rlAssertGrep "$MESSAGE" listen.log
|
||||
else # failure expected
|
||||
rlAssertGrep "open failed" tunnel.log -i
|
||||
rlAssertGrep "administratively prohibited" tunnel.log -i
|
||||
rlAssertNotGrep "$MESSAGE" listen.log
|
||||
fi
|
||||
|
||||
rlRun "kill -9 $LISTEN_PID $SSH_PID" 0,1 "Killing cleanup"
|
||||
rlWaitForSocket $LISTEN -t $TIMEOUT --close
|
||||
rlWaitForSocket $FORWARDED -t $TIMEOUT --close
|
||||
if ! rlGetPhaseState; then
|
||||
rlRun "cat listen.log"
|
||||
rlRun "cat tunnel.log"
|
||||
fi
|
||||
rlFileSubmit listen.log tunnel.log
|
||||
rlRun "rm -f *.log;"
|
||||
}
|
||||
|
||||
rlPhaseStartTest "Local forwarding"
|
||||
forwarding_test "success" $FORWARDED localhost $LISTEN
|
||||
((FORWARDED+=1))
|
||||
((LISTEN+=1))
|
||||
rlPhaseEnd
|
||||
|
||||
rlPhaseStartTest "PermitOpen with 'any'"
|
||||
rlFileBackup --namespace permitopen_any /etc/ssh/sshd_config /etc/hosts
|
||||
rlRun "echo 'PermitOpen any' >>/etc/ssh/sshd_config"
|
||||
rlRun "echo '$IP anyhost1 anyhost2' >>/etc/hosts"
|
||||
rlRun "service sshd restart"
|
||||
for i in `seq 3`; do
|
||||
forwarding_test "success" $FORWARDED anyhost1 $LISTEN
|
||||
forwarding_test "success" $FORWARDED anyhost2 $LISTEN
|
||||
((FORWARDED+=1))
|
||||
((LISTEN+=1))
|
||||
done
|
||||
rlFileRestore --namespace permitopen_any
|
||||
rlPhaseEnd
|
||||
|
||||
if ! rlIsRHEL '<6.7'; then
|
||||
# PermitOpen with wildcards is new feature in RHEL-6.7
|
||||
rlPhaseStartTest "PermitOpen with port wildcard"
|
||||
rlFileBackup --namespace port_wildcard /etc/ssh/sshd_config /etc/hosts
|
||||
rlRun "echo 'PermitOpen wildportallow:*' >>/etc/ssh/sshd_config"
|
||||
rlRun "echo '$IP wildportallow wildportdeny' >>/etc/hosts"
|
||||
rlRun "service sshd restart"
|
||||
forwarding_test "success" $FORWARDED wildportallow $LISTEN
|
||||
((FORWARDED+=1))
|
||||
((LISTEN+=1))
|
||||
forwarding_test "failure" $FORWARDED wildportdeny $LISTEN
|
||||
((FORWARDED+=1))
|
||||
((LISTEN+=1))
|
||||
rlFileRestore --namespace port_wildcard
|
||||
rlRun "service sshd restart"
|
||||
rlPhaseEnd
|
||||
fi
|
||||
|
||||
if ! rlIsRHEL '<7.3'; then
|
||||
rlPhaseStartTest "PermitOpen with host wildcard and specific port"
|
||||
rlFileBackup --namespace host_wildcard /etc/ssh/sshd_config /etc/hosts
|
||||
rlRun "echo 'PermitOpen *:$LISTEN' >>/etc/ssh/sshd_config"
|
||||
rlRun "echo '$IP wildhost1 wildhost2' >>/etc/hosts"
|
||||
rlRun "service sshd restart"
|
||||
forwarding_test "success" $FORWARDED wildhost1 $LISTEN
|
||||
((FORWARDED+=1))
|
||||
forwarding_test "success" $FORWARDED wildhost2 $LISTEN
|
||||
((FORWARDED+=1))
|
||||
((LISTEN+=1)) # different listen port, should fail
|
||||
forwarding_test "failure" $FORWARDED wildhost2 $LISTEN
|
||||
rlFileRestore --namespace host_wildcard
|
||||
rlPhaseEnd
|
||||
fi
|
||||
|
||||
rlPhaseStartCleanup
|
||||
rlRun "userdel -rf $USER"
|
||||
rlRun "popd"
|
||||
rlFileRestore
|
||||
rlServiceRestore sshd
|
||||
rlRun "rm -r $TmpDir" 0 "Removing tmp directory"
|
||||
rlPhaseEnd
|
||||
rlJournalPrintText
|
||||
rlJournalEnd
|
@ -1,31 +0,0 @@
|
||||
---
|
||||
# Tests for docker container
|
||||
- hosts: localhost
|
||||
tags:
|
||||
- container
|
||||
# no compatible tests
|
||||
|
||||
# Tests for classic environment and Atomic Host
|
||||
- hosts: localhost
|
||||
tags:
|
||||
- all
|
||||
- classic
|
||||
- atomic
|
||||
roles:
|
||||
- role: standard-test-beakerlib
|
||||
tests:
|
||||
- port-forwarding
|
||||
- pam_ssh_agent_auth
|
||||
required_packages:
|
||||
- iproute # needs ip command
|
||||
- procps-ng # needs ps and pgrep commands
|
||||
- initscripts # needs service command
|
||||
- openssh-clients # needs ssh command
|
||||
- findutils # needs find command
|
||||
- net-tools # needs netstat command
|
||||
- libselinux-utils # needs selinuxenabled command
|
||||
- nmap-ncat # needs nc command
|
||||
- pam_ssh_agent_auth
|
||||
- gcc # needs to test pam_ssh_agent_auth
|
||||
- pam-devel # needs to test pam_ssh_agent_auth
|
||||
- expect # needs to test pam_ssh_agent_auth
|
Loading…
Reference in New Issue
Block a user