mirror of
https://github.com/vanhauser-thc/thc-hydra.git
synced 2024-10-17 22:40:20 -07:00
515 lines
18 KiB
C
515 lines
18 KiB
C
#include "hydra-mod.h"
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#include "sasl.h"
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/* david: ref http://xmpp.org/rfcs/rfc3920.html */
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extern char *HYDRA_EXIT;
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static char *domain = NULL;
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int32_t xmpp_auth_mechanism = AUTH_ERROR;
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char *JABBER_CLIENT_INIT_STR = "<?xml version='1.0' ?><stream:stream to='";
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char *JABBER_CLIENT_INIT_END_STR = "' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' "
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"version='1.0'>";
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int32_t start_xmpp(int32_t s, char *ip, int32_t port, unsigned char options, char *miscptr, FILE *fp) {
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char *empty = "\"\"", *result = NULL;
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char *login, *pass, buffer[500], buffer2[500];
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char *AUTH_STR = "<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='";
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char *AUTH_STR_END = "'/>";
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char *CHALLENGE_STR = "<challenge xmlns='urn:ietf:params:xml:ns:xmpp-sasl'>";
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char *CHALLENGE_STR2 = "<challenge xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\">";
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char *CHALLENGE_END_STR = "</challenge>";
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char *RESPONSE_STR = "<response xmlns='urn:ietf:params:xml:ns:xmpp-sasl'>";
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char *RESPONSE_END_STR = "</response>";
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char *fooptr, *buf;
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if (strlen(login = hydra_get_next_login()) == 0)
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login = empty;
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if (strlen(pass = hydra_get_next_password()) == 0)
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pass = empty;
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switch (xmpp_auth_mechanism) {
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case AUTH_SCRAMSHA1:
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sprintf(buffer, "%s%s%s", AUTH_STR, "SCRAM-SHA-1", AUTH_STR_END);
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break;
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case AUTH_CRAMMD5:
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sprintf(buffer, "%s%s%s", AUTH_STR, "CRAM-MD5", AUTH_STR_END);
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break;
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case AUTH_DIGESTMD5:
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sprintf(buffer, "%s%s%s", AUTH_STR, "DIGEST-MD5", AUTH_STR_END);
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break;
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case AUTH_PLAIN:
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sprintf(buffer, "%s%s%s", AUTH_STR, "PLAIN", AUTH_STR_END);
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break;
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default:
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sprintf(buffer, "%s%s%s", AUTH_STR, "LOGIN", AUTH_STR_END);
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break;
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}
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hydra_send(s, buffer, strlen(buffer), 0);
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usleepn(300);
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if ((buf = hydra_receive_line(s)) == NULL)
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return 3;
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if (debug)
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hydra_report(stderr, "DEBUG S: %s\n", buf);
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if ((strstr(buf, CHALLENGE_STR) != NULL) || (strstr(buf, CHALLENGE_STR2) != NULL)) {
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/*
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the challenge string is sent depending of the
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auth chosen it's the case for login auth
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*/
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char *ptr = strstr(buf, CHALLENGE_STR);
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if (!ptr)
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ptr = strstr(buf, CHALLENGE_STR2);
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char *ptr_end = strstr(ptr, CHALLENGE_END_STR);
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int32_t chglen = ptr_end - ptr - strlen(CHALLENGE_STR);
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if ((chglen > 0) && (chglen < sizeof(buffer2))) {
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strncpy(buffer2, ptr + strlen(CHALLENGE_STR), chglen);
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buffer2[chglen] = '\0';
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memset(buffer, 0, sizeof(buffer));
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from64tobits((char *)buffer, buffer2);
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if (debug)
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hydra_report(stderr, "DEBUG S: %s\n", buffer);
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}
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switch (xmpp_auth_mechanism) {
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case AUTH_LOGIN: {
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if (strstr(buffer, "sername") != NULL) {
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strncpy(buffer2, login, sizeof(buffer2) - 1);
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buffer2[sizeof(buffer2) - 1] = '\0';
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hydra_tobase64((unsigned char *)buffer2, strlen(buffer2), sizeof(buffer2));
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sprintf(buffer, "%s%.250s%s", RESPONSE_STR, buffer2, RESPONSE_END_STR);
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if (debug)
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hydra_report(stderr, "DEBUG C: %s\n", buffer);
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if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
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free(buf);
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return 1;
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}
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buf = hydra_receive_line(s);
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if (buf == NULL)
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return 1;
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/* server now would ask for the password */
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if ((strstr(buf, CHALLENGE_STR) != NULL) || (strstr(buf, CHALLENGE_STR2) != NULL)) {
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char *ptr = strstr(buf, CHALLENGE_STR);
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if (!ptr)
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ptr = strstr(buf, CHALLENGE_STR2);
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char *ptr_end = strstr(ptr, CHALLENGE_END_STR);
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int32_t chglen = ptr_end - ptr - strlen(CHALLENGE_STR);
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if ((chglen > 0) && (chglen < sizeof(buffer2))) {
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strncpy(buffer2, ptr + strlen(CHALLENGE_STR), chglen);
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buffer2[chglen] = '\0';
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memset(buffer, 0, sizeof(buffer));
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from64tobits((char *)buffer, buffer2);
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if (strstr(buffer, "assword") != NULL) {
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strncpy(buffer2, pass, sizeof(buffer2) - 1);
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buffer2[sizeof(buffer2) - 1] = '\0';
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hydra_tobase64((unsigned char *)buffer2, strlen(buffer2), sizeof(buffer2));
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sprintf(buffer, "%s%.250s%s", RESPONSE_STR, buffer2, RESPONSE_END_STR);
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}
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} else {
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hydra_report(stderr, "[ERROR] xmpp could not extract challenge from server\n");
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free(buf);
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return 1;
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}
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}
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}
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} break;
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#ifdef LIBOPENSSL
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case AUTH_PLAIN: {
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memset(buffer2, 0, sizeof(buffer));
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result = sasl_plain(buffer2, login, pass);
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if (result == NULL)
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return 3;
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sprintf(buffer, "%s%.250s%s", RESPONSE_STR, buffer2, RESPONSE_END_STR);
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if (debug)
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hydra_report(stderr, "DEBUG C: %s\n", buffer);
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} break;
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case AUTH_CRAMMD5: {
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int32_t rc = 0;
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char *preplogin;
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memset(buffer2, 0, sizeof(buffer2));
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result = sasl_cram_md5(buffer2, pass, buffer);
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if (result == NULL)
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return 3;
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rc = sasl_saslprep(login, SASL_ALLOW_UNASSIGNED, &preplogin);
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if (rc) {
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free(buf);
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return 3;
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}
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sprintf(buffer, "%.200s %.250s", preplogin, buffer2);
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if (debug)
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hydra_report(stderr, "DEBUG C: %s\n", buffer);
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hydra_tobase64((unsigned char *)buffer, strlen(buffer), sizeof(buffer));
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sprintf(buffer2, "%s%.250s%s", RESPONSE_STR, buffer, RESPONSE_END_STR);
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strncpy(buffer, buffer2, sizeof(buffer) - 1);
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buffer[sizeof(buffer) - 1] = '\0';
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free(preplogin);
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} break;
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case AUTH_DIGESTMD5: {
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memset(buffer2, 0, sizeof(buffer2));
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fooptr = buffer2;
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result = sasl_digest_md5(fooptr, login, pass, buffer, domain, "xmpp", NULL, 0, NULL);
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if (result == NULL) {
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free(buf);
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return 3;
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}
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if (debug)
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hydra_report(stderr, "DEBUG C: %s\n", buffer2);
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hydra_tobase64((unsigned char *)buffer2, strlen(buffer2), sizeof(buffer2));
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snprintf(buffer, sizeof(buffer), "%s%s%s", RESPONSE_STR, buffer2, RESPONSE_END_STR);
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} break;
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case AUTH_SCRAMSHA1: {
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/*client-first-message */
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char clientfirstmessagebare[200];
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char *preplogin;
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int32_t rc = sasl_saslprep(login, SASL_ALLOW_UNASSIGNED, &preplogin);
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if (rc) {
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free(buf);
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return 3;
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}
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snprintf(clientfirstmessagebare, sizeof(clientfirstmessagebare), "n=%s,r=hydra", preplogin);
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free(preplogin);
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sprintf(buffer2, "n,,%.200s", clientfirstmessagebare);
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hydra_tobase64((unsigned char *)buffer2, strlen(buffer2), sizeof(buffer2));
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snprintf(buffer, sizeof(buffer), "%s%s%s", RESPONSE_STR, buffer2, RESPONSE_END_STR);
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free(buf);
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if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
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return 1;
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}
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buf = hydra_receive_line(s);
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if (buf == NULL)
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return 1;
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if ((strstr(buf, CHALLENGE_STR) != NULL) || (strstr(buf, CHALLENGE_STR2) != NULL)) {
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char serverfirstmessage[200];
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char *ptr = strstr(buf, CHALLENGE_STR);
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if (!ptr)
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ptr = strstr(buf, CHALLENGE_STR2);
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char *ptr_end = strstr(ptr, CHALLENGE_END_STR);
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int32_t chglen = ptr_end - ptr - strlen(CHALLENGE_STR);
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if ((chglen > 0) && (chglen < sizeof(buffer2))) {
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strncpy(buffer2, ptr + strlen(CHALLENGE_STR), chglen);
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buffer2[chglen] = '\0';
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} else {
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hydra_report(stderr, "[ERROR] xmpp could not extract challenge from server\n");
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free(buf);
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return 1;
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}
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/*server-first-message */
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memset(buffer, 0, sizeof(buffer));
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from64tobits((char *)buffer, buffer2);
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strncpy(serverfirstmessage, buffer, sizeof(serverfirstmessage) - 1);
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serverfirstmessage[sizeof(serverfirstmessage) - 1] = '\0';
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memset(buffer2, 0, sizeof(buffer2));
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fooptr = buffer2;
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result = sasl_scram_sha1(fooptr, pass, clientfirstmessagebare, serverfirstmessage);
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if (result == NULL) {
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hydra_report(stderr, "[ERROR] Can't compute client response\n");
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free(buf);
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return 1;
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}
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hydra_tobase64((unsigned char *)buffer2, strlen(buffer2), sizeof(buffer2));
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snprintf(buffer, sizeof(buffer), "%s%s%s", RESPONSE_STR, buffer2, RESPONSE_END_STR);
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} else {
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if (verbose || debug)
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hydra_report(stderr, "[ERROR] Not a valid server challenge\n");
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free(buf);
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return 1;
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}
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} break;
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#endif
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ptr = 0;
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}
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free(buf);
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if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
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return 1;
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}
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usleepn(50);
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buf = hydra_receive_line(s);
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if (buf == NULL)
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return 1;
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// we test the challenge tag as digest-md5 when connected is sending
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// "rspauth" value so if we are receiving a second challenge we assume the
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// auth is good
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if ((strstr(buf, "<success") != NULL) || (strstr(buf, "<challenge ") != NULL)) {
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hydra_report_found_host(port, ip, "xmpp", fp);
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hydra_completed_pair_found();
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free(buf);
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if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
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return 3;
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return 1;
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}
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if (verbose)
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hydra_report(stderr, "[ERROR] %s\n", buf);
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free(buf);
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hydra_completed_pair();
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if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
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return 3;
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return 2;
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}
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if (strstr(buf, "<failure")) {
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hydra_report(stderr, "[ERROR] Protocol failure, try using another auth method. %s\n", strstr(buf, "<failure"));
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}
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free(buf);
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return 3;
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}
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void service_xmpp(char *target, char *ip, int32_t sp, unsigned char options, char *miscptr, FILE *fp, int32_t port, char *hostname) {
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int32_t run = 1, next_run = 1, sock = -1, tls = 0;
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char buffer[500], *buf = NULL;
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int32_t myport = PORT_XMPP, mysslport = PORT_XMPP_SSL, disable_tls = 0;
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char *enddomain = NULL;
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// we have to pass the target here as the reverse dns resolution is not
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// working for some servers try to extract only the domain name from the
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// target so for o.nimbuzz.com will get nimbuzz.com and hermes.jabber.org will
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// get jabber.org
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domain = strchr(target, '.');
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if (!domain) {
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hydra_report(stderr, "[ERROR] can't extract the domain name, you have to "
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"specify a fqdn xmpp server, the domain name will be "
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"used in the jabber init request\n");
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hydra_child_exit(1);
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}
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enddomain = strrchr(target, '.');
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// check if target is not already a domain name aka only . char in the string
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if (enddomain && (enddomain == domain)) {
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domain = target;
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} else {
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// moving to pass the . char
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domain = domain + 1;
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}
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hydra_register_socket(sp);
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if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
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return;
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while (1) {
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switch (run) {
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case 1: /* connect and service init function */
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if (sock >= 0)
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sock = hydra_disconnect(sock);
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if ((options & OPTION_SSL) == 0) {
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if (port != 0)
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myport = port;
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sock = hydra_connect_tcp(ip, myport);
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port = myport;
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} else {
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if (port != 0)
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mysslport = port;
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sock = hydra_connect_ssl(ip, mysslport, hostname);
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port = mysslport;
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}
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if (sock < 0) {
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if (verbose || debug)
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hydra_report(stderr, "[ERROR] Child with pid %d terminating, can not connect\n", (int32_t)getpid());
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hydra_child_exit(1);
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}
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memset(buffer, 0, sizeof(buffer));
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snprintf(buffer, sizeof(buffer), "%s%s%s", JABBER_CLIENT_INIT_STR, domain, JABBER_CLIENT_INIT_END_STR);
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if (hydra_send(sock, buffer, strlen(buffer), 0) < 0) {
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hydra_child_exit(1);
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}
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// some server is longer to answer
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usleepn(300);
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do {
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if ((buf = hydra_receive_line(sock)) == NULL) {
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/* no auth method identified */
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hydra_report(stderr, "[ERROR] no authentication methods can be identified\n");
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hydra_child_exit(1);
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}
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if (strstr(buf, "<stream:stream") == NULL) {
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if (verbose || debug)
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hydra_report(stderr, "[ERROR] Not an xmpp protocol or service shutdown: %s\n", buf);
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free(buf);
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hydra_child_exit(1);
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}
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if (strstr(buf, "<stream:error")) {
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if (strstr(buf, "<host-unknown"))
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hydra_report(stderr,
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"[ERROR] %s host unknown, you have to specify a fqdn "
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"xmpp server, the domain name will be used in the "
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"jabber init request : %s\n",
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domain, buf);
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else
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hydra_report(stderr, "[ERROR] xmpp protocol : %s\n", buf);
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free(buf);
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hydra_child_exit(1);
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}
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/* try to identify which features is supported */
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if (strstr(buf, ":xmpp-tls") != NULL) {
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tls = 1;
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}
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if (strstr(buf, ":xmpp-sasl") != NULL) {
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if (strstr(buf, "<mechanism>SCRAM-SHA-1</mechanism>") != NULL) {
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xmpp_auth_mechanism = AUTH_SCRAMSHA1;
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}
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if (strstr(buf, "<mechanism>CRAM-MD5</mechanism>") != NULL) {
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xmpp_auth_mechanism = AUTH_CRAMMD5;
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}
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if (strstr(buf, "<mechanism>DIGEST-MD5</mechanism>") != NULL) {
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xmpp_auth_mechanism = AUTH_DIGESTMD5;
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}
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if (strstr(buf, "<mechanism>PLAIN</mechanism>") != NULL) {
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xmpp_auth_mechanism = AUTH_PLAIN;
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}
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if (strstr(buf, "<mechanism>LOGIN</mechanism>") != NULL) {
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xmpp_auth_mechanism = AUTH_LOGIN;
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}
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}
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free(buf);
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} while (xmpp_auth_mechanism == AUTH_ERROR);
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if ((miscptr != NULL) && (strlen(miscptr) > 0)) {
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int32_t i;
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for (i = 0; i < strlen(miscptr); i++)
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miscptr[i] = (char)toupper((int32_t)miscptr[i]);
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if (strncmp(miscptr, "LOGIN", 5) == 0)
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xmpp_auth_mechanism = AUTH_LOGIN;
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if (strncmp(miscptr, "PLAIN", 5) == 0)
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xmpp_auth_mechanism = AUTH_PLAIN;
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#ifdef LIBOPENSSL
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if (strncmp(miscptr, "CRAM-MD5", 8) == 0)
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xmpp_auth_mechanism = AUTH_CRAMMD5;
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if (strncmp(miscptr, "SCRAM-SHA1", 10) == 0)
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xmpp_auth_mechanism = AUTH_SCRAMSHA1;
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if (strncmp(miscptr, "DIGEST-MD5", 10) == 0)
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xmpp_auth_mechanism = AUTH_DIGESTMD5;
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#endif
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}
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if (verbose) {
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switch (xmpp_auth_mechanism) {
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case AUTH_LOGIN:
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hydra_report(stderr, "[VERBOSE] using XMPP LOGIN AUTH mechanism\n");
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break;
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case AUTH_PLAIN:
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hydra_report(stderr, "[VERBOSE] using XMPP PLAIN AUTH mechanism\n");
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break;
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#ifdef LIBOPENSSL
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case AUTH_CRAMMD5:
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hydra_report(stderr, "[VERBOSE] using XMPP CRAM-MD5 AUTH mechanism\n");
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break;
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case AUTH_SCRAMSHA1:
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hydra_report(stderr, "[VERBOSE] using XMPP SCRAM-SHA1 AUTH mechanism\n");
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break;
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case AUTH_DIGESTMD5:
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hydra_report(stderr, "[VERBOSE] using XMPP DIGEST-MD5 AUTH mechanism\n");
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break;
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#endif
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}
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}
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#ifdef LIBOPENSSL
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// check if tls is not wanted and if tls is available
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if (!disable_tls && tls) {
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char *STARTTLS = "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>";
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hydra_send(sock, STARTTLS, strlen(STARTTLS), 0);
|
|
usleepn(300);
|
|
buf = hydra_receive_line(sock);
|
|
|
|
if (buf == NULL || strstr(buf, "<failure") != NULL) {
|
|
if (verbose)
|
|
hydra_report(stderr, "[VERBOSE] TLS negotiation failed\n");
|
|
} else {
|
|
free(buf);
|
|
if ((hydra_connect_to_ssl(sock, hostname) == -1)) {
|
|
if (verbose)
|
|
hydra_report(stderr, "[ERROR] Can't use TLS\n");
|
|
disable_tls = 1;
|
|
run = 1;
|
|
break;
|
|
} else {
|
|
if (verbose)
|
|
hydra_report(stderr, "[VERBOSE] TLS connection done\n");
|
|
}
|
|
/* we have to resend the init stream */
|
|
memset(buffer, 0, sizeof(buffer));
|
|
snprintf(buffer, sizeof(buffer), "%s%s%s", JABBER_CLIENT_INIT_STR, domain, JABBER_CLIENT_INIT_END_STR);
|
|
if (hydra_send(sock, buffer, strlen(buffer), 0) < 0) {
|
|
hydra_child_exit(1);
|
|
}
|
|
// some server is longer to answer
|
|
usleepn(300);
|
|
buf = hydra_receive_line(sock);
|
|
if ((buf == NULL) || (strstr(buf, "<stream:stream") == NULL))
|
|
hydra_child_exit(1);
|
|
}
|
|
free(buf);
|
|
}
|
|
#endif
|
|
next_run = 2;
|
|
break;
|
|
case 2: /* run the cracking function */
|
|
next_run = start_xmpp(sock, ip, port, options, miscptr, fp);
|
|
break;
|
|
case 3: /* clean exit */
|
|
if (sock >= 0)
|
|
sock = hydra_disconnect(sock);
|
|
hydra_child_exit(0);
|
|
return;
|
|
default:
|
|
hydra_report(stderr, "[ERROR] Caught unknown return code, exiting!\n");
|
|
hydra_child_exit(2);
|
|
}
|
|
run = next_run;
|
|
}
|
|
}
|
|
|
|
int32_t service_xmpp_init(char *ip, int32_t sp, unsigned char options, char *miscptr, FILE *fp, int32_t port, char *hostname) {
|
|
// called before the childrens are forked off, so this is the function
|
|
// which should be filled if initial connections and service setup has to be
|
|
// performed once only.
|
|
//
|
|
// fill if needed.
|
|
//
|
|
// return codes:
|
|
// 0 all OK
|
|
// -1 error, hydra will exit, so print a good error message here
|
|
|
|
return 0;
|
|
}
|
|
|
|
void usage_xmpp(const char *service) {
|
|
printf("Module xmpp is optionally taking one authentication type of:\n"
|
|
" LOGIN (default), PLAIN, CRAM-MD5, DIGEST-MD5, SCRAM-SHA1\n\n"
|
|
"Note, the target passed should be a fdqn as the value is used in the "
|
|
"Jabber init request, example: hermes.jabber.org\n\n");
|
|
}
|