forked from vanhauser-thc/thc-hydra
/
hydra-http-proxy.c
314 lines (276 loc) · 10.6 KB
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hydra-http-proxy.c
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#include "hydra-mod.h"
#include "sasl.h"
extern char *HYDRA_EXIT;
static int http_proxy_auth_mechanism = AUTH_ERROR;
char *http_proxy_buf = NULL;
int start_http_proxy(int s, char *ip, int port, unsigned char options, char *miscptr, FILE * fp, char *hostname) {
char *empty = "";
char *login, *pass, buffer[500], buffer2[500];
char url[210], host[30];
char *header = ""; /* XXX TODO */
char *ptr, *fooptr;
if (strlen(login = hydra_get_next_login()) == 0)
login = empty;
if (strlen(pass = hydra_get_next_password()) == 0)
pass = empty;
if (miscptr == NULL) {
strcpy(url, "http://www.microsoft.com/");
strcpy(host, "Host: www.microsoft.com\r\n");
} else {
sprintf(url, "%.200s", miscptr);
ptr = strstr(miscptr, "://"); // :// check is in hydra.c
sprintf(host, "Host: %.200s", ptr + 3);
if ((ptr = index(host, '/')) != NULL)
*ptr = 0;
if ((ptr = index(host + 6, ':')) != NULL && host[0] != '[')
*ptr = 0;
strcat(host, "\r\n");
}
if (http_proxy_auth_mechanism != AUTH_BASIC && (http_proxy_auth_mechanism == AUTH_ERROR || http_proxy_buf == NULL)) {
//send dummy request
sprintf(buffer, "GET %s HTTP/1.0\r\n%sUser-Agent: Mozilla/4.0 (Hydra)\r\n%s\r\n", url, host, header);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0)
return 3;
//receive first 40x
http_proxy_buf = hydra_receive_line(s);
while (http_proxy_buf != NULL && strstr(http_proxy_buf, "HTTP/") == NULL) {
free(http_proxy_buf);
http_proxy_buf = hydra_receive_line(s);
}
if (http_proxy_buf == NULL) {
if (verbose)
hydra_report(stderr, "[ERROR] Server did not answer\n");
return 3;
}
if (debug)
hydra_report(stderr, "S:%s\n", http_proxy_buf);
free(http_proxy_buf);
http_proxy_buf = hydra_receive_line(s);
while (http_proxy_buf != NULL && hydra_strcasestr(http_proxy_buf, "Proxy-Authenticate:") == NULL) {
free(http_proxy_buf);
http_proxy_buf = hydra_receive_line(s);
}
if (http_proxy_buf == NULL) {
if (verbose)
hydra_report(stderr, "[ERROR] Proxy seems not to require authentication\n");
return 3;
}
if (debug)
hydra_report(stderr, "S:%s\n", http_proxy_buf);
//after the first query we should have been disconnected from web server
s = hydra_disconnect(s);
if ((options & OPTION_SSL) == 0) {
s = hydra_connect_tcp(ip, port);
} else {
s = hydra_connect_ssl(ip, port, hostname);
}
}
if (http_proxy_auth_mechanism == AUTH_BASIC || hydra_strcasestr(http_proxy_buf, "Proxy-Authenticate: Basic") != NULL) {
http_proxy_auth_mechanism = AUTH_BASIC;
sprintf(buffer2, "%.50s:%.50s", login, pass);
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
sprintf(buffer, "GET %s HTTP/1.0\r\n%sProxy-Authorization: Basic %s\r\nUser-Agent: Mozilla/4.0 (Hydra)\r\n%s\r\n", url, host, buffer2, header);
if (debug)
hydra_report(stderr, "C:%s\n", buffer);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0)
return 3;
free(http_proxy_buf);
http_proxy_buf = hydra_receive_line(s);
while (http_proxy_buf != NULL && strstr(http_proxy_buf, "HTTP/1.") == NULL) {
free(http_proxy_buf);
http_proxy_buf = hydra_receive_line(s);
}
//if server cut the connection, just exit cleanly or
//this will be an infinite loop
if (http_proxy_buf == NULL) {
if (verbose)
hydra_report(stderr, "[ERROR] Server did not answer\n");
return 3;
}
if (debug)
hydra_report(stderr, "S:%s\n", http_proxy_buf);
} else {
if (http_proxy_auth_mechanism == AUTH_NTLM || hydra_strcasestr(http_proxy_buf, "Proxy-Authenticate: NTLM") != NULL) {
unsigned char buf1[4096];
unsigned char buf2[4096];
char *pos = NULL;
http_proxy_auth_mechanism = AUTH_NTLM;
//send auth and receive challenge
//send auth request: let the server send it's own hostname and domainname
buildAuthRequest((tSmbNtlmAuthRequest *) buf2, 0, NULL, NULL);
to64frombits(buf1, buf2, SmbLength((tSmbNtlmAuthRequest *) buf2));
/* to be portable, no snprintf, buffer is big enough so it cant overflow */
//send the first..
sprintf(buffer, "GET %s HTTP/1.0\r\n%sProxy-Authorization: NTLM %s\r\nUser-Agent: Mozilla/4.0 (Hydra)\r\nProxy-Connection: keep-alive\r\n%s\r\n", url, host, buf1, header);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0)
return 3;
//receive challenge
free(http_proxy_buf);
http_proxy_buf = hydra_receive_line(s);
while (http_proxy_buf != NULL && (pos = hydra_strcasestr(http_proxy_buf, "Proxy-Authenticate: NTLM ")) == NULL) {
free(http_proxy_buf);
http_proxy_buf = hydra_receive_line(s);
}
if (pos != NULL) {
char *str;
pos += 25;
if ((str = strchr(pos, '\r')) != NULL) {
pos[str - pos] = 0;
}
if ((str = strchr(pos, '\n')) != NULL) {
pos[str - pos] = 0;
}
}
//recover challenge
if (http_proxy_buf != NULL && strlen(http_proxy_buf) >= 4) {
from64tobits((char *) buf1, pos);
free(http_proxy_buf);
http_proxy_buf = NULL;
return 3;
}
//Send response
buildAuthResponse((tSmbNtlmAuthChallenge *) buf1, (tSmbNtlmAuthResponse *) buf2, 0, login, pass, NULL, NULL);
to64frombits(buf1, buf2, SmbLength((tSmbNtlmAuthResponse *) buf2));
sprintf(buffer, "GET %s HTTP/1.0\r\n%sProxy-Authorization: NTLM %s\r\nUser-Agent: Mozilla/4.0 (Hydra)\r\nProxy-Connection: keep-alive\r\n%s\r\n", url, host, buf1, header);
if (debug)
hydra_report(stderr, "C:%s\n", buffer);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0)
return 3;
if (http_proxy_buf != NULL)
free(http_proxy_buf);
http_proxy_buf = hydra_receive_line(s);
while (http_proxy_buf != NULL && strstr(http_proxy_buf, "HTTP/1.") == NULL) {
free(http_proxy_buf);
http_proxy_buf = hydra_receive_line(s);
}
if (http_proxy_buf == NULL)
return 3;
} else {
#ifdef LIBOPENSSL
if (hydra_strcasestr(http_proxy_buf, "Proxy-Authenticate: Digest") != NULL) {
char *pbuffer;
http_proxy_auth_mechanism = AUTH_DIGESTMD5;
pbuffer = hydra_strcasestr(http_proxy_buf, "Proxy-Authenticate: Digest ");
strncpy(buffer, pbuffer + strlen("Proxy-Authenticate: Digest "), sizeof(buffer));
buffer[sizeof(buffer) - 1] = '\0';
pbuffer = NULL;
fooptr = buffer2;
sasl_digest_md5(fooptr, login, pass, buffer, miscptr, "proxy", host, 0, header);
if (fooptr == NULL)
return 3;
if (debug)
hydra_report(stderr, "C:%s\n", buffer2);
if (hydra_send(s, buffer2, strlen(buffer2), 0) < 0)
return 3;
free(http_proxy_buf);
http_proxy_buf = hydra_receive_line(s);
while (http_proxy_buf != NULL && strstr(http_proxy_buf, "HTTP/1.") == NULL) {
free(http_proxy_buf);
http_proxy_buf = hydra_receive_line(s);
}
if (debug && http_proxy_buf != NULL)
hydra_report(stderr, "S:%s\n", http_proxy_buf);
if (http_proxy_buf == NULL)
return 3;
} else
#endif
{
if (http_proxy_buf != NULL) {
// buf[strlen(http_proxy_buf) - 1] = '\0';
hydra_report(stderr, "Unsupported Auth type:\n%s\n", http_proxy_buf);
free(http_proxy_buf);
http_proxy_buf = NULL;
} else {
hydra_report(stderr, "Unsupported Auth type\n");
}
return 3;
}
}
}
ptr = ((char *) index(http_proxy_buf, ' ')) + 1;
if (*ptr == '2' || (*ptr == '3' && *(ptr + 2) == '1') || (*ptr == '3' && *(ptr + 2) == '2')) {
hydra_report_found_host(port, ip, "http-proxy", fp);
hydra_completed_pair_found();
free(http_proxy_buf);
http_proxy_buf = NULL;
} else {
if (*ptr != '4')
hydra_report(stderr, "[INFO] Unusual return code: %c for %s:%s\n", (char) *(index(http_proxy_buf, ' ') + 1), login, pass);
else if (verbose && *(ptr + 2) == '3')
hydra_report(stderr, "[INFO] Potential success, could be false positive: %s:%s\n", login, pass);
hydra_completed_pair();
free(http_proxy_buf);
http_proxy_buf = hydra_receive_line(s);
while (http_proxy_buf != NULL && hydra_strcasestr(http_proxy_buf, "Proxy-Authenticate:") == NULL) {
free(http_proxy_buf);
http_proxy_buf = hydra_receive_line(s);
}
}
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
return 3;
if (http_proxy_buf != NULL)
return 2;
else
return 1;
}
void service_http_proxy(char *ip, int sp, unsigned char options, char *miscptr, FILE * fp, int port, char *hostname) {
int run = 1, next_run = 1, sock = -1;
int myport = PORT_HTTP_PROXY, mysslport = PORT_HTTP_PROXY_SSL;
hydra_register_socket(sp);
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
return;
while (1) {
next_run = 0;
switch (run) {
case 1: /* connect and service init function */
{
if (http_proxy_buf != NULL)
free(http_proxy_buf);
if (sock >= 0)
sock = hydra_disconnect(sock);
// sleepn(275);
if ((options & OPTION_SSL) == 0) {
if (port != 0)
myport = port;
sock = hydra_connect_tcp(ip, myport);
port = myport;
} else {
if (port != 0)
mysslport = port;
sock = hydra_connect_ssl(ip, mysslport, hostname);
port = mysslport;
}
if (sock < 0) {
if (quiet != 1) fprintf(stderr, "[ERROR] Child with pid %d terminating, can not connect\n", (int) getpid());
hydra_child_exit(1);
}
next_run = 2;
break;
}
case 2: /* run the cracking function */
next_run = start_http_proxy(sock, ip, port, options, miscptr, fp, hostname);
break;
case 3: /* clean exit */
if (sock >= 0)
sock = hydra_disconnect(sock);
hydra_child_exit(0);
return;
default:
fprintf(stderr, "[ERROR] Caught unknown return code, exiting!\n");
hydra_child_exit(0);
}
run = next_run;
}
}
int service_http_proxy_init(char *ip, int sp, unsigned char options, char *miscptr, FILE * fp, int 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;
}