mirror of
https://github.com/vanhauser-thc/thc-hydra.git
synced 2025-03-12 04:36:23 -07:00
599 lines
19 KiB
C
599 lines
19 KiB
C
#include "hydra-mod.h"
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#include "sasl.h"
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extern char *HYDRA_EXIT;
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char *buf;
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int32_t counter;
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int32_t imap_auth_mechanism = AUTH_CLEAR;
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char *imap_read_server_capacity(int32_t sock) {
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char *ptr = NULL;
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int32_t resp = 0;
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char *buf = NULL;
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do {
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if (buf != NULL)
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free(buf);
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ptr = buf = hydra_receive_line(sock);
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if (buf != NULL) {
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if (strstr(buf, "CAPABILITY") != NULL && buf[0] == '*') {
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resp = 1;
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usleepn(300);
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/* we got the capability info then get the completed warning info from
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* server */
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while (hydra_data_ready(sock)) {
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free(buf);
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buf = hydra_receive_line(sock);
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}
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} else {
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if (buf[strlen(buf) - 1] == '\n')
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buf[strlen(buf) - 1] = 0;
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if (buf[strlen(buf) - 1] == '\r')
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buf[strlen(buf) - 1] = 0;
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if (isdigit((int32_t)*ptr) && *(ptr + 1) == ' ') {
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resp = 1;
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}
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}
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}
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} while (buf != NULL && resp == 0);
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return buf;
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}
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int32_t start_imap(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], *fooptr;
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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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while (hydra_data_ready(s)) {
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if ((buf = hydra_receive_line(s)) == NULL)
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return (1);
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free(buf);
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}
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switch (imap_auth_mechanism) {
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case AUTH_LOGIN:
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sprintf(buffer, "%d AUTHENTICATE LOGIN\r\n", counter);
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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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if ((buf = hydra_receive_line(s)) == NULL)
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return 1;
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if (strstr(buf, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL) {
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hydra_report(stderr, "[ERROR] IMAP LOGIN AUTH : %s\n", buf);
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free(buf);
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return 3;
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}
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free(buf);
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strcpy(buffer2, login);
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hydra_tobase64((unsigned char *)buffer2, strlen(buffer2), sizeof(buffer2));
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sprintf(buffer, "%.250s\r\n", buffer2);
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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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if ((buf = hydra_receive_line(s)) == NULL)
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return 1;
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if (strstr(buf, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL) {
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hydra_report(stderr, "[ERROR] IMAP LOGIN AUTH : %s\n", buf);
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free(buf);
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return 3;
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}
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free(buf);
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strcpy(buffer2, pass);
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hydra_tobase64((unsigned char *)buffer2, strlen(buffer2), sizeof(buffer2));
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sprintf(buffer, "%.250s\r\n", buffer2);
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break;
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case AUTH_PLAIN:
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sprintf(buffer, "%d AUTHENTICATE PLAIN\r\n", counter);
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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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if ((buf = hydra_receive_line(s)) == NULL)
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return 1;
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if (strstr(buf, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL) {
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hydra_report(stderr, "[ERROR] IMAP PLAIN AUTH : %s\n", buf);
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free(buf);
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return 3;
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}
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free(buf);
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memset(buffer2, 0, sizeof(buffer2));
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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, "%.250s\r\n", buffer2);
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break;
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#ifdef LIBOPENSSL
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case AUTH_CRAMMD5:
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case AUTH_CRAMSHA1:
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case AUTH_CRAMSHA256: {
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int32_t rc = 0;
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char *preplogin;
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rc = sasl_saslprep(login, SASL_ALLOW_UNASSIGNED, &preplogin);
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if (rc) {
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return 3;
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}
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switch (imap_auth_mechanism) {
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case AUTH_CRAMMD5:
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sprintf(buffer, "%d AUTHENTICATE CRAM-MD5\r\n", counter);
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break;
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case AUTH_CRAMSHA1:
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sprintf(buffer, "%d AUTHENTICATE CRAM-SHA1\r\n", counter);
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break;
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case AUTH_CRAMSHA256:
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sprintf(buffer, "%d AUTHENTICATE CRAM-SHA256\r\n", counter);
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break;
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}
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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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// get the one-time BASE64 encoded challenge
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if ((buf = hydra_receive_line(s)) == NULL)
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return 1;
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if (strstr(buf, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL || strstr(buf, "BYE") != NULL) {
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switch (imap_auth_mechanism) {
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case AUTH_CRAMMD5:
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hydra_report(stderr, "[ERROR] IMAP CRAM-MD5 AUTH : %s\n", buf);
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break;
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case AUTH_CRAMSHA1:
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hydra_report(stderr, "[ERROR] IMAP CRAM-SHA1 AUTH : %s\n", buf);
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break;
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case AUTH_CRAMSHA256:
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hydra_report(stderr, "[ERROR] IMAP CRAM-SHA256 AUTH : %s\n", buf);
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break;
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}
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free(buf);
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return 3;
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}
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memset(buffer, 0, sizeof(buffer));
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from64tobits((char *)buffer, buf + 2);
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free(buf);
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memset(buffer2, 0, sizeof(buffer2));
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switch (imap_auth_mechanism) {
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case AUTH_CRAMMD5: {
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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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sprintf(buffer, "%s %.250s", preplogin, buffer2);
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} break;
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case AUTH_CRAMSHA1: {
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result = sasl_cram_sha1(buffer2, pass, buffer);
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if (result == NULL)
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return 3;
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sprintf(buffer, "%s %.250s", preplogin, buffer2);
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} break;
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case AUTH_CRAMSHA256: {
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result = sasl_cram_sha256(buffer2, pass, buffer);
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if (result == NULL)
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return 3;
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sprintf(buffer, "%s %.250s", preplogin, buffer2);
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} break;
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}
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hydra_tobase64((unsigned char *)buffer, strlen(buffer), sizeof(buffer));
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char tmp_buffer[sizeof(buffer)];
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sprintf(tmp_buffer, "%.250s\r\n", buffer);
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strcpy(buffer, tmp_buffer);
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free(preplogin);
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} break;
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case AUTH_DIGESTMD5: {
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sprintf(buffer, "%d AUTHENTICATE DIGEST-MD5\r\n", counter);
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if (hydra_send(s, buffer, strlen(buffer), 0) < 0)
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return 1;
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// receive
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if ((buf = hydra_receive_line(s)) == NULL)
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return 1;
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if (strstr(buf, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL || strstr(buf, "BYE") != NULL) {
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hydra_report(stderr, "[ERROR] IMAP DIGEST-MD5 AUTH : %s\n", buf);
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free(buf);
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return 3;
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}
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memset(buffer, 0, sizeof(buffer));
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from64tobits((char *)buffer, buf);
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free(buf);
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if (debug)
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hydra_report(stderr, "DEBUG S: %s\n", buffer);
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fooptr = buffer2;
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result = sasl_digest_md5(fooptr, login, pass, buffer, miscptr, "imap", NULL, 0, NULL);
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if (result == NULL)
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return 3;
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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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sprintf(buffer, "%s\r\n", buffer2);
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} break;
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case AUTH_SCRAMSHA1: {
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char clientfirstmessagebare[200];
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char serverfirstmessage[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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return 3;
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}
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sprintf(buffer, "%d AUTHENTICATE SCRAM-SHA-1\r\n", counter);
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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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if ((buf = hydra_receive_line(s)) == NULL)
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return 1;
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if (strstr(buf, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL || strstr(buf, "BYE") != NULL) {
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hydra_report(stderr, "[ERROR] IMAP SCRAM-SHA1 AUTH : %s\n", buf);
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free(buf);
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return 3;
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}
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free(buf);
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snprintf(clientfirstmessagebare, sizeof(clientfirstmessagebare), "n=%s,r=hydra", preplogin);
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free(preplogin);
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memset(buffer2, 0, sizeof(buffer2));
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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\r\n", buffer2);
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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, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL || strstr(buf, "BYE") != NULL) {
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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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} else {
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/* recover server challenge */
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memset(buffer, 0, sizeof(buffer));
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//+ cj1oeWRyYU9VNVZqcHQ5RjNqcmVXRVFWTCxzPWhGbTNnRGw0akdidzJVVHosaT00MDk2
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from64tobits((char *)buffer, buf + 2);
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free(buf);
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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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return 1;
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}
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hydra_tobase64((unsigned char *)buffer2, strlen(buffer2), sizeof(buffer2));
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sprintf(buffer, "%s\r\n", buffer2);
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}
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} break;
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#endif
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case AUTH_NTLM: {
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unsigned char buf1[4096];
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unsigned char buf2[4096];
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// Send auth request
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sprintf(buffer, "%d AUTHENTICATE NTLM\r\n", counter);
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if (hydra_send(s, buffer, strlen(buffer), 0) < 0)
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return 1;
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// receive
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if ((buf = hydra_receive_line(s)) == NULL)
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return 1;
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if (strstr(buf, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL || strstr(buf, "BYE") != NULL) {
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hydra_report(stderr, "[ERROR] IMAP NTLM AUTH : %s\n", buf);
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free(buf);
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return 3;
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}
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free(buf);
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// send auth and receive challenge
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// send auth request: lst the server send it's own hostname and domainname
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buildAuthRequest((tSmbNtlmAuthRequest *)buf2, 0, NULL, NULL);
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to64frombits(buf1, buf2, SmbLength((tSmbNtlmAuthRequest *)buf2));
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sprintf(buffer, "%s\r\n", buf1);
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if (hydra_send(s, buffer, strlen(buffer), 0) < 0)
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return 1;
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if ((buf = hydra_receive_line(s)) == NULL)
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return 1;
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if (strlen(buf) < 6) {
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free(buf);
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return 1;
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}
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// recover challenge
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from64tobits((char *)buf1, buf + 2);
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free(buf);
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// Send response
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buildAuthResponse((tSmbNtlmAuthChallenge *)buf1, (tSmbNtlmAuthResponse *)buf2, 0, login, pass, NULL, NULL);
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to64frombits(buf1, buf2, SmbLength((tSmbNtlmAuthResponse *)buf2));
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sprintf(buffer, "%s\r\n", buf1);
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} break;
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default:
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// clear authentication
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sprintf(buffer, "%d LOGIN \"%.100s\" \"%.100s\"\r\n", counter, login, pass);
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}
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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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if ((buf = hydra_receive_line(s)) == NULL)
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return (1);
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if (strstr(buf, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL || strstr(buf, "BYE") != NULL) {
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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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if (counter == 4)
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return 1;
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return (2);
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}
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free(buf);
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hydra_report_found_host(port, ip, "imap", fp);
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hydra_completed_pair_found();
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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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void service_imap(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;
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int32_t myport = PORT_IMAP, mysslport = PORT_IMAP_SSL, disable_tls = 1;
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char *buffer1 = "1 CAPABILITY\r\n";
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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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// usleepn(275);
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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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buf = hydra_receive_line(sock);
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if ((buf == NULL) || (strstr(buf, "OK") == NULL && buf[0] != '*')) { /* check the first line */
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if (verbose || debug)
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hydra_report(stderr, "[ERROR] Not an IMAP protocol or service shutdown:\n");
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if (buf != NULL)
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free(buf);
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hydra_child_exit(2);
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}
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free(buf);
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/* send capability request */
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if (hydra_send(sock, buffer1, strlen(buffer1), 0) < 0)
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exit(-1);
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counter = 2;
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buf = imap_read_server_capacity(sock);
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if (buf == NULL) {
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hydra_child_exit(2);
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}
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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 (strstr(miscptr, "TLS") || strstr(miscptr, "SSL") || strstr(miscptr, "STARTTLS")) {
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disable_tls = 0;
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}
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}
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#ifdef LIBOPENSSL
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if (!disable_tls) {
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/* check for STARTTLS, if available we may have access to more basic
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* auth methods */
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if (strstr(buf, "STARTTLS") != NULL) {
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hydra_send(sock, "2 STARTTLS\r\n", strlen("2 STARTTLS\r\n"), 0);
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counter++;
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free(buf);
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buf = hydra_receive_line(sock);
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if (buf == NULL || (strstr(buf, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL)) {
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hydra_report(stderr, "[ERROR] TLS negotiation failed, no answer "
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"received from STARTTLS request\n");
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} else {
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free(buf);
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if ((hydra_connect_to_ssl(sock, hostname) == -1)) {
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if (verbose)
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hydra_report(stderr, "[ERROR] Can't use TLS\n");
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disable_tls = 1;
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run = 1;
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break;
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} else {
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if (verbose)
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hydra_report(stderr, "[VERBOSE] TLS connection done\n");
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}
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/* ask again capability request but in TLS mode */
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if (hydra_send(sock, "3 CAPABILITY\r\n", strlen("3 CAPABILITY\r\n"), 0) < 0)
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hydra_child_exit(2);
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buf = imap_read_server_capacity(sock);
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counter++;
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if (buf == NULL)
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hydra_child_exit(2);
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}
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} else
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hydra_report(stderr, "[ERROR] option to use TLS/SSL failed as it is "
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"not supported by the server\n");
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}
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#endif
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if (verbose)
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hydra_report(stderr, "[VERBOSE] CAPABILITY: %s", buf);
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// authentication should be listed AUTH= like in the extract below
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// STARTTLS LOGINDISABLED AUTH=GSSAPI AUTH=DIGEST-MD5 AUTH=CRAM-MD5
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if ((strstr(buf, "=LOGIN") == NULL) && (strstr(buf, "=NTLM") != NULL)) {
|
|
imap_auth_mechanism = AUTH_NTLM;
|
|
}
|
|
#ifdef LIBOPENSSL
|
|
if ((strstr(buf, "=LOGIN") == NULL) && (strstr(buf, "=SCRAM-SHA-1") != NULL)) {
|
|
imap_auth_mechanism = AUTH_SCRAMSHA1;
|
|
}
|
|
|
|
if ((strstr(buf, "=LOGIN") == NULL) && (strstr(buf, "=DIGEST-MD5") != NULL)) {
|
|
imap_auth_mechanism = AUTH_DIGESTMD5;
|
|
}
|
|
|
|
if ((strstr(buf, "=LOGIN") == NULL) && (strstr(buf, "=CRAM-SHA256") != NULL)) {
|
|
imap_auth_mechanism = AUTH_CRAMSHA256;
|
|
}
|
|
|
|
if ((strstr(buf, "=LOGIN") == NULL) && (strstr(buf, "=CRAM-SHA1") != NULL)) {
|
|
imap_auth_mechanism = AUTH_CRAMSHA1;
|
|
}
|
|
|
|
if ((strstr(buf, "=LOGIN") == NULL) && (strstr(buf, "=CRAM-MD5") != NULL)) {
|
|
imap_auth_mechanism = AUTH_CRAMMD5;
|
|
}
|
|
#endif
|
|
if ((strstr(buf, "=LOGIN") == NULL) && (strstr(buf, "=PLAIN") != NULL)) {
|
|
imap_auth_mechanism = AUTH_PLAIN;
|
|
}
|
|
|
|
if (strstr(buf, "=LOGIN") != NULL) {
|
|
imap_auth_mechanism = AUTH_LOGIN;
|
|
}
|
|
free(buf);
|
|
|
|
if ((miscptr != NULL) && (strlen(miscptr) > 0)) {
|
|
if (strstr(miscptr, "CLEAR"))
|
|
imap_auth_mechanism = AUTH_CLEAR;
|
|
|
|
if (strstr(miscptr, "LOGIN"))
|
|
imap_auth_mechanism = AUTH_LOGIN;
|
|
|
|
if (strstr(miscptr, "PLAIN"))
|
|
imap_auth_mechanism = AUTH_PLAIN;
|
|
|
|
#ifdef LIBOPENSSL
|
|
if (strstr(miscptr, "CRAM-MD5"))
|
|
imap_auth_mechanism = AUTH_CRAMMD5;
|
|
|
|
if (strstr(miscptr, "CRAM-SHA1"))
|
|
imap_auth_mechanism = AUTH_CRAMSHA1;
|
|
|
|
if (strstr(miscptr, "CRAM-SHA256"))
|
|
imap_auth_mechanism = AUTH_CRAMSHA256;
|
|
|
|
if (strstr(miscptr, "DIGEST-MD5"))
|
|
imap_auth_mechanism = AUTH_DIGESTMD5;
|
|
|
|
if (strstr(miscptr, "SCRAM-SHA1"))
|
|
imap_auth_mechanism = AUTH_SCRAMSHA1;
|
|
|
|
#endif
|
|
if (strstr(miscptr, "NTLM"))
|
|
imap_auth_mechanism = AUTH_NTLM;
|
|
}
|
|
|
|
if (verbose) {
|
|
switch (imap_auth_mechanism) {
|
|
case AUTH_CLEAR:
|
|
hydra_report(stderr, "[VERBOSE] using IMAP CLEAR LOGIN mechanism\n");
|
|
break;
|
|
case AUTH_LOGIN:
|
|
hydra_report(stderr, "[VERBOSE] using IMAP LOGIN AUTH mechanism\n");
|
|
break;
|
|
case AUTH_PLAIN:
|
|
hydra_report(stderr, "[VERBOSE] using IMAP PLAIN AUTH mechanism\n");
|
|
break;
|
|
#ifdef LIBOPENSSL
|
|
case AUTH_CRAMMD5:
|
|
hydra_report(stderr, "[VERBOSE] using IMAP CRAM-MD5 AUTH mechanism\n");
|
|
break;
|
|
case AUTH_CRAMSHA1:
|
|
hydra_report(stderr, "[VERBOSE] using IMAP CRAM-SHA1 AUTH mechanism\n");
|
|
break;
|
|
case AUTH_CRAMSHA256:
|
|
hydra_report(stderr, "[VERBOSE] using IMAP CRAM-SHA256 AUTH mechanism\n");
|
|
break;
|
|
case AUTH_DIGESTMD5:
|
|
hydra_report(stderr, "[VERBOSE] using IMAP DIGEST-MD5 AUTH mechanism\n");
|
|
break;
|
|
case AUTH_SCRAMSHA1:
|
|
hydra_report(stderr, "[VERBOSE] using IMAP SCRAM-SHA1 AUTH mechanism\n");
|
|
break;
|
|
#endif
|
|
case AUTH_NTLM:
|
|
hydra_report(stderr, "[VERBOSE] using IMAP NTLM AUTH mechanism\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
next_run = 2;
|
|
break;
|
|
case 2: /* run the cracking function */
|
|
next_run = start_imap(sock, ip, port, options, miscptr, fp);
|
|
counter++;
|
|
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_imap_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_imap(const char *service) {
|
|
printf("Module imap is optionally taking one authentication type of:\n"
|
|
" CLEAR or APOP (default), LOGIN, PLAIN, CRAM-MD5, CRAM-SHA1,\n"
|
|
" CRAM-SHA256, DIGEST-MD5, NTLM\n"
|
|
"Additionally TLS encryption via STARTTLS can be enforced with the "
|
|
"TLS option.\n\n"
|
|
"Example: imap://target/TLS:PLAIN\n");
|
|
}
|