- Added a patch to add both communication partners in arpspoof - Added patch to allow multiple targets to be imitated simultaniously - Added patch to allow the selection of source hw address in arpspoof - Added a patch which fixes and modernizes the POP decoder - Fixed segmentation faults related to libnet_name2addr4() (#1009879) - Added a patch to fix bit-shift in pntohl() macro (#714958, #850496) - Avoid xdrs being used without being initialised (#715042, #850494)
187 lines
5.2 KiB
Diff
187 lines
5.2 KiB
Diff
Patch by Stefan Tomanek <stefan@pico.ruhr.de> for dsniff >= 2.4b1 to allow the use
|
|
of of multiple targets. For some more information, please have a look to Debian bug
|
|
ID #650751.
|
|
|
|
--- dsniff-2.4/arpspoof.8 2013-12-20 20:40:36.000000000 +0100
|
|
+++ dsniff-2.4/arpspoof.8.arpspoof_multiple 2013-12-20 20:41:45.000000000 +0100
|
|
@@ -25,7 +25,7 @@
|
|
Specify the interface to use.
|
|
.IP "\fB-t \fItarget\fR"
|
|
Specify a particular host to ARP poison (if not specified, all hosts
|
|
-on the LAN).
|
|
+on the LAN). Repeat to specify multiple hosts.
|
|
.IP "\fB\-r\fR"
|
|
Poison both hosts (host and target) to capture traffic in both directions.
|
|
(only valid in conjuntion with \-t)
|
|
--- dsniff-2.4/arpspoof.c 2013-12-20 20:40:36.000000000 +0100
|
|
+++ dsniff-2.4/arpspoof.c.arpspoof_multiple 2013-12-20 20:50:34.000000000 +0100
|
|
@@ -27,11 +27,16 @@
|
|
#include "arp.h"
|
|
#include "version.h"
|
|
|
|
+struct host {
|
|
+ in_addr_t ip;
|
|
+ struct ether_addr mac;
|
|
+};
|
|
+
|
|
extern char *ether_ntoa(struct ether_addr *);
|
|
|
|
static libnet_t *l;
|
|
-static struct ether_addr spoof_mac, target_mac;
|
|
-static in_addr_t spoof_ip, target_ip;
|
|
+static struct host spoof = {0};
|
|
+static struct host *targets;
|
|
static char *intf;
|
|
static int poison_reverse;
|
|
|
|
@@ -133,30 +138,46 @@
|
|
return (0);
|
|
}
|
|
|
|
+static int arp_find_all() {
|
|
+ struct host *target = targets;
|
|
+ while(target->ip) {
|
|
+ if (arp_find(target->ip, &target->mac)) {
|
|
+ return 1;
|
|
+ }
|
|
+ target++;
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
static void
|
|
cleanup(int sig)
|
|
{
|
|
- int fw = arp_find(spoof_ip, &spoof_mac);
|
|
- int bw = poison_reverse && target_ip && arp_find(target_ip, &target_mac);
|
|
+ int fw = arp_find(spoof.ip, &spoof.mac);
|
|
+ int bw = poison_reverse && targets[0].ip && arp_find_all();
|
|
int i;
|
|
|
|
fprintf(stderr, "Cleaning up and re-arping targets...\n");
|
|
for (i = 0; i < 5; i++) {
|
|
- /* XXX - on BSD, requires ETHERSPOOF kernel. */
|
|
- if (fw) {
|
|
- arp_send(l, ARPOP_REPLY,
|
|
- (u_int8_t *)&spoof_mac, spoof_ip,
|
|
- (target_ip ? (u_int8_t *)&target_mac : NULL),
|
|
- target_ip);
|
|
- /* we have to wait a moment before sending the next packet */
|
|
- sleep(1);
|
|
- }
|
|
- if (bw) {
|
|
- arp_send(l, ARPOP_REPLY,
|
|
- (u_int8_t *)&target_mac, target_ip,
|
|
- (u_int8_t *)&spoof_mac,
|
|
- spoof_ip);
|
|
- sleep(1);
|
|
+ struct host *target = targets;
|
|
+ while(target->ip) {
|
|
+ /* XXX - on BSD, requires ETHERSPOOF kernel. */
|
|
+ if (fw) {
|
|
+ arp_send(l, ARPOP_REPLY,
|
|
+ (u_int8_t *)&spoof.mac, spoof.ip,
|
|
+ (target->ip ? (u_int8_t *)&target->mac : NULL),
|
|
+ target->ip);
|
|
+ /* we have to wait a moment before sending the next packet */
|
|
+ sleep(1);
|
|
+ }
|
|
+ if (bw) {
|
|
+ arp_send(l, ARPOP_REPLY,
|
|
+ (u_int8_t *)&target->mac, target->ip,
|
|
+ (u_int8_t *)&spoof.mac,
|
|
+ spoof.ip);
|
|
+ sleep(1);
|
|
+ }
|
|
+ target++;
|
|
}
|
|
}
|
|
|
|
@@ -171,10 +192,15 @@
|
|
char pcap_ebuf[PCAP_ERRBUF_SIZE];
|
|
char libnet_ebuf[LIBNET_ERRBUF_SIZE];
|
|
int c;
|
|
+ int n_targets;
|
|
|
|
+ spoof.ip = 0;
|
|
intf = NULL;
|
|
- spoof_ip = target_ip = 0;
|
|
poison_reverse = 0;
|
|
+ n_targets = 0;
|
|
+
|
|
+ /* allocate enough memory for target list */
|
|
+ targets = calloc( argc+1, sizeof(struct host) );
|
|
|
|
while ((c = getopt(argc, argv, "ri:t:h?V")) != -1) {
|
|
switch (c) {
|
|
@@ -182,7 +208,7 @@
|
|
intf = optarg;
|
|
break;
|
|
case 't':
|
|
- if ((target_ip = libnet_name2addr4(l, optarg, LIBNET_RESOLVE)) == -1)
|
|
+ if ((targets[n_targets++].ip = libnet_name2addr4(l, optarg, LIBNET_RESOLVE)) == -1)
|
|
usage();
|
|
break;
|
|
case 'r':
|
|
@@ -198,12 +224,12 @@
|
|
if (argc != 1)
|
|
usage();
|
|
|
|
- if (poison_reverse && !target_ip) {
|
|
+ if (poison_reverse && !n_targets) {
|
|
errx(1, "Spoofing the reverse path (-r) is only available when specifying a target (-t).");
|
|
usage();
|
|
}
|
|
|
|
- if ((spoof_ip = libnet_name2addr4(l, argv[0], LIBNET_RESOLVE)) == -1)
|
|
+ if ((spoof.ip = libnet_name2addr4(l, argv[0], LIBNET_RESOLVE)) == -1)
|
|
usage();
|
|
|
|
if (intf == NULL && (intf = pcap_lookupdev(pcap_ebuf)) == NULL)
|
|
@@ -212,14 +238,18 @@
|
|
if ((l = libnet_init(LIBNET_LINK, intf, libnet_ebuf)) == NULL)
|
|
errx(1, "%s", libnet_ebuf);
|
|
|
|
- if (target_ip != 0 && !arp_find(target_ip, &target_mac))
|
|
- errx(1, "couldn't arp for host %s",
|
|
- libnet_addr2name4(target_ip, LIBNET_DONT_RESOLVE));
|
|
+ struct host *target = targets;
|
|
+ while(target->ip) {
|
|
+ if (target->ip != 0 && !arp_find(target->ip, &target->mac))
|
|
+ errx(1, "couldn't arp for host %s",
|
|
+ libnet_addr2name4(target->ip, LIBNET_DONT_RESOLVE));
|
|
+ target++;
|
|
+ }
|
|
|
|
if (poison_reverse) {
|
|
- if (!arp_find(spoof_ip, &spoof_mac)) {
|
|
+ if (!arp_find(spoof.ip, &spoof.mac)) {
|
|
errx(1, "couldn't arp for spoof host %s",
|
|
- libnet_addr2name4(spoof_ip, LIBNET_DONT_RESOLVE));
|
|
+ libnet_addr2name4(spoof.ip, LIBNET_DONT_RESOLVE));
|
|
}
|
|
}
|
|
|
|
@@ -228,11 +258,15 @@
|
|
signal(SIGTERM, cleanup);
|
|
|
|
for (;;) {
|
|
- arp_send(l, ARPOP_REPLY, NULL, spoof_ip,
|
|
- (target_ip ? (u_int8_t *)&target_mac : NULL),
|
|
- target_ip);
|
|
- if (poison_reverse) {
|
|
- arp_send(l, ARPOP_REPLY, NULL, target_ip, (uint8_t *)&spoof_mac, spoof_ip);
|
|
+ struct host *target = targets;
|
|
+ while(target->ip) {
|
|
+ arp_send(l, ARPOP_REPLY, NULL, spoof.ip,
|
|
+ (target->ip ? (u_int8_t *)&target->mac : NULL),
|
|
+ target->ip);
|
|
+ if (poison_reverse) {
|
|
+ arp_send(l, ARPOP_REPLY, NULL, target->ip, (uint8_t *)&spoof.mac, spoof.ip);
|
|
+ }
|
|
+ target++;
|
|
}
|
|
sleep(2);
|
|
}
|