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Merge pull request #13 from Strunk18/master

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Enhancement in parameters 'h' and 'H' to define custom headers, plus issue #12 fixed.
This commit is contained in:
van Hauser 2014-09-11 18:06:35 +02:00
commit 63a92b9d05
2 changed files with 749 additions and 399 deletions
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788
hydra-http-form.c
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@ -52,19 +52,26 @@ Added fail or success condition, getting cookies, and allow 5 redirections by da
#include "hydra-mod.h"
/* HTTP Header Types */
#define HEADER_TYPE_USERHEADER 'h'
#define HEADER_TYPE_USERHEADER_REPL 'H'
#define HEADER_TYPE_DEFAULT 'D'
extern char *HYDRA_EXIT;
char *buf;
char *cond;
typedef struct header_node {
char *header;
char *value;
char type;
struct header_node *next;
}t_header_node, *ptr_header_node;
int success_cond = 0;
int getcookie = 1;
int auth_flag = 0;
char redirected_url_buff[2048] = "";
int redirected_flag = 0;
#define MAX_REDIRECT 8
int redirected_cpt = MAX_REDIRECT;
char cookie[4096] = "", cmiscptr[1024];
extern char *webtarget;
@ -72,6 +79,217 @@ extern char *slash;
int webport, freemischttpform = 0;
char bufferurl[1024], cookieurl[1024] = "", userheader[1024] = "", *url, *variables, *optional1;
#define MAX_REDIRECT 8
#define MAX_CONTENT_LENGTH 20
#define MAX_PROXY_LENGTH 2048 // sizeof(cookieurl) * 2
char redirected_url_buff[2048] = "";
int redirected_flag = 0;
int redirected_cpt = MAX_REDIRECT;
char *cookie_request, *normal_request; // Buffers for HTTP headers
/*
* Function to perform some initial setup.
*/
ptr_header_node initialize(char * ip, unsigned char options, char * miscptr);
/*
* Returns 1 if specified header exists, or 0 otherwise.
*/
ptr_header_node header_exists(ptr_header_node * ptr_head, char * header_name, char type){
ptr_header_node cur_ptr = *ptr_head,
found_header = NULL;
for(cur_ptr = *ptr_head; cur_ptr && !found_header; cur_ptr = cur_ptr->next)
if(cur_ptr->header && strcmp(cur_ptr->header, header_name) == 0 && cur_ptr->type == type)
found_header = cur_ptr;
return found_header;
}
/*
* List layout:
* +----------+ +--------+ +--------+ +--------+
* | ptr_head | --> | next | --> | next | --> | NULL |
* | | | header | | header | | NULL |
* | | | value | | value | | NULL |
* +----------+ +--------+ +--------+ +--------+
*
* Returns 1 if success, or 0 otherwise (out of memory).
*/
int add_header(ptr_header_node * ptr_head, char *header, char *value, char type){
ptr_header_node cur_ptr = NULL;
ptr_header_node existing_hdr, new_ptr;
// get to the last header
for(cur_ptr = *ptr_head; cur_ptr && cur_ptr->next; cur_ptr = cur_ptr->next);
char * new_header = strdup(header);
char * new_value = strdup(value);
if(new_header && new_value){
if((type == HEADER_TYPE_USERHEADER) ||
(type == HEADER_TYPE_DEFAULT && !header_exists(ptr_head, new_header, HEADER_TYPE_USERHEADER_REPL)) ||
(type == HEADER_TYPE_USERHEADER_REPL && !header_exists(ptr_head, new_header, HEADER_TYPE_DEFAULT))){
/*
* We are in one of the following scenarios:
* 1. A default header with no user-supplied headers that replace it.
* 2. A user-supplied header that must be appended (option 'h').
* 3. A user-supplied header that must replace a default header (option 'h'),
* but no default headers exist with that name.
*
* In either case we just add the header to the list.
*/
new_ptr = (ptr_header_node) malloc(sizeof(t_header_node));
if(!new_ptr)
return 0;
new_ptr->header = new_header;
new_ptr->value = new_value;
new_ptr->type = type;
new_ptr->next = NULL;
if(cur_ptr)
cur_ptr->next = new_ptr;
else{
// head is NULL, so the list is empty
*ptr_head = new_ptr;
}
}else if(type == HEADER_TYPE_USERHEADER_REPL && (existing_hdr = header_exists(ptr_head, new_header, HEADER_TYPE_DEFAULT))){
// It's a user-supplied header that must replace a default one
// Replace the default header's value with this new value
free(existing_hdr->value);
existing_hdr->value = new_value;
existing_hdr->type = type;
}
}else{
// we're out of memory, so forcefully end
return 0;
}
return 1;
}
/*
* Replace in all headers' values every occurrence of oldvalue by newvalue.
* Only user-defined headers are considered.
*/
void hdrrep(ptr_header_node * ptr_head, char * oldvalue, char * newvalue){
ptr_header_node cur_ptr = NULL;
for(cur_ptr = *ptr_head; cur_ptr; cur_ptr = cur_ptr->next){
if((cur_ptr->type == HEADER_TYPE_USERHEADER || cur_ptr->type == HEADER_TYPE_USERHEADER_REPL) && strstr(cur_ptr->value, oldvalue)){
cur_ptr->value = (char *) realloc(cur_ptr->value, strlen(newvalue));
if(cur_ptr->value)
strcpy(cur_ptr->value, newvalue);
else{
hydra_report(stderr, "[ERROR] Out of memory.");
hydra_child_exit(0);
}
}
}
}
/*
* Replace the value of the default header named 'hdrname'.
*/
void hdrrepv(ptr_header_node * ptr_head, char * hdrname, char * new_value){
ptr_header_node cur_ptr = NULL;
for(cur_ptr = *ptr_head; cur_ptr; cur_ptr = cur_ptr->next){
if((cur_ptr->type == HEADER_TYPE_DEFAULT) && strcmp(cur_ptr->header, hdrname) == 0){
cur_ptr->value = (char *) realloc(cur_ptr->value, strlen(new_value));
if(cur_ptr->value)
strcpy(cur_ptr->value, new_value);
else{
hydra_report(stderr, "[ERROR] Out of memory");
hydra_child_exit(0);
}
}
}
}
void cleanup(ptr_header_node * ptr_head){
ptr_header_node cur_ptr = *ptr_head, next_ptr = cur_ptr;
while(next_ptr){
free(cur_ptr->header);
free(cur_ptr->value);
next_ptr = cur_ptr->next;
}
*ptr_head = NULL;
}
/*
* Concat all the headers in the list in a single string.
* Leave the list itself intact: do not clean it here.
*/
char * stringify_headers(ptr_header_node * ptr_head){
char * headers_str = NULL;
ptr_header_node cur_ptr = *ptr_head;
int ttl_size = 0;
for(; cur_ptr; cur_ptr = cur_ptr->next)
ttl_size += strlen(cur_ptr->header) + strlen(cur_ptr->value) + 3;
headers_str = (char *) malloc(ttl_size + 1);
if(headers_str){
memset(headers_str, 0, ttl_size + 1);
for(cur_ptr = *ptr_head; cur_ptr; cur_ptr = cur_ptr->next){
strcat(headers_str, cur_ptr->header);
strcat(headers_str, ":");
strcat(headers_str, cur_ptr->value);
strcat(headers_str, "\r\n");
}
}
return headers_str;
}
char * prepare_http_request(char * type, char * path, char * params, char * headers){
unsigned int reqlen = 0;
char * http_request = NULL;
if(type && path && headers){
reqlen = strlen(path) + strlen(headers) + 20;
if(params)
reqlen += strlen(params);
http_request = (char *) malloc(reqlen);
if(http_request){
memset(http_request, 0, reqlen);
// append the request verb (GET or POST)
if(strcmp(type, "GET") == 0)
strcat(http_request, "GET ");
else
strcat(http_request, "POST ");
// append the request path
strcat(http_request, path);
// if GET, append the params now
if(params && strcmp(type, "GET") == 0){
strcat(http_request, "?");
strcat(http_request, params);
}
// append the headers
strcat(http_request, " HTTP/1.0\r\n");
strcat(http_request, headers);
strcat(http_request, "\r\n");
// if POST, append the params now
if(params && strcmp(type, "POST") == 0)
strcat(http_request, params);
}
}
return http_request;
}
int strpos(char *str, char *target) {
char *res = strstr(str, target);
@ -149,9 +367,11 @@ int analyze_server_response(int s) {
endcookie1 = strchr(str, '\n');
endcookie2 = strchr(str, ';');
//terminate string after cookie data
if (endcookie1 != NULL && endcookie1 < endcookie2)
if (endcookie1 != NULL && ((endcookie1 < endcookie2) || (endcookie2 == NULL))){
if(*(endcookie1 - 1) == '\r')
endcookie1--;
*endcookie1 = 0;
else if (endcookie2 != NULL)
}else if (endcookie2 != NULL)
*endcookie2 = 0;
// is the cookie already there? if yes, remove it!
if (index(startcookie, '=') != NULL && (ptr = index(startcookie, '=')) - startcookie + 1 <= sizeof(tmpname)) {
@ -179,7 +399,7 @@ int analyze_server_response(int s) {
}
}
ptr = index(str, '=');
// only copy the cookie if it has a value (otherwise the server wants to delete the cookie
// only copy the cookie if it has a value (otherwise the server wants to delete the cookie)
if (ptr != NULL && *(ptr + 1) != ';' && *(ptr + 1) != 0 && *(ptr + 1) != '\n' && *(ptr + 1) != '\r') {
if (strlen(cookie) > 0)
strncat(cookie, "; ", sizeof(cookie) - strlen(cookie) - 1);
@ -218,15 +438,19 @@ void hydra_reconnect(int s, char *ip, int port, unsigned char options) {
}
}
int start_http_form(int s, char *ip, int port, unsigned char options, char *miscptr, FILE * fp, char *type) {
int start_http_form(int s, char *ip, int port, unsigned char options, char *miscptr, FILE * fp, char *type, ptr_header_node ptr_head) {
char *empty = "";
char *login, *pass, buffer[9000], clogin[256], cpass[256];
char header[8096], *upd3variables, cuserheader[1024];
char * buffer;
char *login, *pass, clogin[256], cpass[256];
char header[8096], *upd3variables;
char *http_request;
int found = !success_cond, i, j;
char content_length[MAX_CONTENT_LENGTH], proxy_string[MAX_PROXY_LENGTH];
memset(header, 0, sizeof(header));
cookie[0] = 0; // reset cookies from potential previous attempt
// Take the next login/pass pair
if (strlen(login = hydra_get_next_login()) == 0)
login = empty;
if (strlen(pass = hydra_get_next_password()) == 0)
@ -237,122 +461,135 @@ int start_http_form(int s, char *ip, int port, unsigned char options, char *misc
cpass[sizeof(cpass) - 1] = 0;
upd3variables = hydra_strrep(variables, "^USER^", clogin);
upd3variables = hydra_strrep(upd3variables, "^PASS^", cpass);
if (strstr(userheader, "^USER^") == NULL && strstr(userheader, "^PASS^") == NULL) {
strcpy(cuserheader, userheader);
} else { // we use the encoded version
strncpy(cuserheader, hydra_strrep(userheader, "^USER^", clogin), sizeof(cuserheader) - 1);
cuserheader[sizeof(cuserheader) - 1] = 0;
strncpy(cuserheader, hydra_strrep(cuserheader, "^PASS^", cpass), sizeof(cuserheader) - 1);
cuserheader[sizeof(cuserheader) - 1] = 0;
}
// Replace the user/pass placeholders in the user-supplied headers
hdrrep(&ptr_head, "^USER^", clogin);
hdrrep(&ptr_head, "^PASS^", cpass);
/* again: no snprintf to be portable. dont worry, buffer cant overflow */
if (use_proxy == 1 && proxy_authentication != NULL) {
// proxy with authentication
if (getcookie) {
//doing a GET to save cookies
sprintf(buffer, "GET http://%s:%d%.600s HTTP/1.0\r\nHost: %s\r\nProxy-Authorization: Basic %s\r\nUser-Agent: Mozilla 5.0 (Hydra Proxy Auth)\r\n%s%s\r\n",
webtarget, webport, cookieurl, webtarget, proxy_authentication, header, cuserheader);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
memset(proxy_string, 0, sizeof(proxy_string));
snprintf(proxy_string, MAX_PROXY_LENGTH - 1, "http://%s:%d%.600s", webtarget, webport, cookieurl);
http_request = prepare_http_request("GET", proxy_string, NULL, cookie_request);
if (hydra_send(s, http_request, strlen(http_request), 0) < 0)
return 1;
}
i = analyze_server_response(s); // return value ignored
if (strlen(cookie) > 0) {
sprintf(header, "Cookie: %s\r\n", cookie);
}
i = analyze_server_response(s); // ignore result
if (strlen(cookie) > 0)
add_header(&ptr_head, "Cookie", cookie, HEADER_TYPE_DEFAULT);
hydra_reconnect(s, ip, port, options);
}
// now prepare for the "real" request
if (strcmp(type, "POST") == 0) {
sprintf(buffer,
"POST http://%s:%d%.600s HTTP/1.0\r\nHost: %s\r\nProxy-Authorization: Basic %s\r\nUser-Agent: Mozilla/5.0 (Hydra Proxy Auth)\r\nContent-Type: application/x-www-form-urlencoded\r\nContent-Length: %d\r\n%s%s\r\n%s",
webtarget, webport, url, webtarget, proxy_authentication, (int) strlen(upd3variables), header, cuserheader, upd3variables);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
memset(proxy_string, 0, sizeof(proxy_string));
snprintf(proxy_string, MAX_PROXY_LENGTH - 1, "http://%s:%d%.600s", webtarget, webport, url);
snprintf(content_length, MAX_CONTENT_LENGTH - 1, "%d", (int) strlen(upd3variables));
if(header_exists(&ptr_head, "Content-Length", HEADER_TYPE_DEFAULT))
hdrrepv(&ptr_head, "Content-Length", content_length);
else
add_header(&ptr_head, "Content-Length", content_length, HEADER_TYPE_DEFAULT);
if(!header_exists(&ptr_head, "Content-Type", HEADER_TYPE_DEFAULT))
add_header(&ptr_head, "Content-Type", "application/x-www-form-urlencoded", HEADER_TYPE_DEFAULT);
normal_request = stringify_headers(&ptr_head);
http_request = prepare_http_request("POST", proxy_string, upd3variables, normal_request);
if (hydra_send(s, http_request, strlen(http_request), 0) < 0)
return 1;
}
} else {
sprintf(buffer,
"GET http://%s:%d%.600s?%s HTTP/1.0\r\nHost: %s\r\nProxy-Authorization: Basic %s\r\nUser-Agent: Mozilla/5.0 (Hydra Proxy Auth)\r\n%s%s\r\n",
webtarget, webport, url, upd3variables, webtarget, proxy_authentication, header, cuserheader);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
normal_request = stringify_headers(&ptr_head);
http_request = prepare_http_request("GET", url, upd3variables, normal_request);
if (hydra_send(s, http_request, strlen(http_request), 0) < 0)
return 1;
}
}
} else {
if (use_proxy == 1) {
// proxy without authentication
if (getcookie) {
//doing a GET to get cookies
sprintf(buffer, "GET http://%s:%d%.600s HTTP/1.0\r\nHost: %s\r\nUser-Agent: Mozilla/5.0 (Hydra Proxy)\r\n%s%s\r\n", webtarget, webport, cookieurl, webtarget, header,
cuserheader);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
memset(proxy_string, 0, sizeof(proxy_string));
snprintf(proxy_string, MAX_PROXY_LENGTH - 1, "http://%s:%d%.600s", webtarget, webport, cookieurl);
http_request = prepare_http_request("GET", proxy_string, NULL, cookie_request);
if (hydra_send(s, http_request, strlen(http_request), 0) < 0)
return 1;
}
i = analyze_server_response(s); // ignore result
if (strlen(cookie) > 0) {
sprintf(header, "Cookie: %s\r\n", cookie);
}
if (strlen(cookie) > 0)
add_header(&ptr_head, "Cookie", cookie, HEADER_TYPE_DEFAULT);
hydra_reconnect(s, ip, port, options);
}
// now prepare for the "real" request
if (strcmp(type, "POST") == 0) {
sprintf(buffer,
"POST http://%s:%d%.600s HTTP/1.0\r\nHost: %s\r\nUser-Agent: Mozilla/5.0 (Hydra)\r\nContent-Type: application/x-www-form-urlencoded\r\nContent-Length: %d\r\n%s%s\r\n%s",
webtarget, webport, url, webtarget, (int) strlen(upd3variables), header, cuserheader, upd3variables);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
memset(proxy_string, 0, sizeof(proxy_string));
snprintf(proxy_string, MAX_PROXY_LENGTH - 1, "http://%s:%d%.600s", webtarget, webport, url);
snprintf(content_length, MAX_CONTENT_LENGTH - 1, "%d", (int) strlen(upd3variables));
if(header_exists(&ptr_head, "Content-Length", HEADER_TYPE_DEFAULT))
hdrrepv(&ptr_head, "Content-Length", content_length);
else
add_header(&ptr_head, "Content-Length", content_length, HEADER_TYPE_DEFAULT);
if(!header_exists(&ptr_head, "Content-Type", HEADER_TYPE_DEFAULT))
add_header(&ptr_head, "Content-Type", "application/x-www-form-urlencoded", HEADER_TYPE_DEFAULT);
normal_request = stringify_headers(&ptr_head);
http_request = prepare_http_request("POST", proxy_string, upd3variables, normal_request);
if (hydra_send(s, http_request, strlen(http_request), 0) < 0)
return 1;
}
} else {
sprintf(buffer, "GET http://%s:%d%.600s?%s HTTP/1.0\r\nHost: %s\r\nUser-Agent: Mozilla/5.0 (Hydra)\r\n%s%s\r\n", webtarget, webport, url, upd3variables, webtarget,
header, cuserheader);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
normal_request = stringify_headers(&ptr_head);
http_request = prepare_http_request("GET", url, upd3variables, normal_request);
if (hydra_send(s, http_request, strlen(http_request), 0) < 0)
return 1;
}
}
} else {
// direct web server, no proxy
if (getcookie) {
//doing a GET to save cookies
sprintf(buffer, "GET %.600s HTTP/1.0\r\nHost: %s\r\nUser-Agent: Mozilla/5.0 (Hydra)\r\n%s\r\n", cookieurl, webtarget, cuserheader);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
http_request = prepare_http_request("GET", cookieurl, NULL, cookie_request);
if (hydra_send(s, http_request, strlen(http_request), 0) < 0)
return 1;
}
i = analyze_server_response(s); // ignore result
if (strlen(cookie) > 0) {
sprintf(header, "Cookie: %s\r\n", cookie);
if (strlen(cookie) > 0 && !header_exists(&ptr_head, "Cookie", HEADER_TYPE_DEFAULT)){
add_header(&ptr_head, "Cookie", cookie, HEADER_TYPE_DEFAULT);
normal_request = stringify_headers(&ptr_head);
}
hydra_reconnect(s, ip, port, options);
}
// now prepare for the "real" request
if (strcmp(type, "POST") == 0) {
sprintf(buffer,
"POST %.600s HTTP/1.0\r\nHost: %s\r\nUser-Agent: Mozilla/5.0 (Hydra)\r\nContent-Type: application/x-www-form-urlencoded\r\nContent-Length: %d\r\n%s%s\r\n%s",
url, webtarget, (int) strlen(upd3variables), header, cuserheader, upd3variables);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
snprintf(content_length, MAX_CONTENT_LENGTH - 1, "%d", (int) strlen(upd3variables));
if(header_exists(&ptr_head, "Content-Length", HEADER_TYPE_DEFAULT))
hdrrepv(&ptr_head, "Content-Length", content_length);
else
add_header(&ptr_head, "Content-Length", content_length, HEADER_TYPE_DEFAULT);
if(!header_exists(&ptr_head, "Content-Type", HEADER_TYPE_DEFAULT))
add_header(&ptr_head, "Content-Type", "application/x-www-form-urlencoded", HEADER_TYPE_DEFAULT);
normal_request = stringify_headers(&ptr_head);
http_request = prepare_http_request("POST", url, upd3variables, normal_request);
if (hydra_send(s, http_request, strlen(http_request), 0) < 0)
return 1;
}
} else {
sprintf(buffer, "GET %.600s?%s HTTP/1.0\r\nHost: %s\r\nUser-Agent: Mozilla/5.0 (Hydra)\r\n%s%s\r\n", url, upd3variables, webtarget, header, cuserheader);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
normal_request = stringify_headers(&ptr_head);
http_request = prepare_http_request("GET", url, upd3variables, normal_request);
if (hydra_send(s, http_request, strlen(http_request), 0) < 0)
return 1;
}
}
}
}
found = analyze_server_response(s);
if (auth_flag) { // we received a 401 error - user using wrong module
hydra_report(stderr, "[ERROR] the target is using HTTP auth, not a web form, received HTTP error code 401. Use module \"http%s-get\" instead.\n",
(options & OPTION_SSL) > 0 ? "s" : "");
return 4;
}
if (strlen(cookie) > 0) {
sprintf(header, "Cookie: %.1000s\r\n", cookie);
}
if (strlen(cookie) > 0 && !header_exists(&ptr_head, "Cookie", HEADER_TYPE_DEFAULT))
add_header(&ptr_head, "Cookie", cookie, HEADER_TYPE_DEFAULT);
//if page was redirected, follow the location header
redirected_cpt = MAX_REDIRECT;
if (debug)
printf("[DEBUG] attempt result: found %d, redirect %d, location: %s\n", found, redirected_flag, redirected_url_buff);
while (found == 0 && redirected_flag && (redirected_url_buff[0] != 0) && (redirected_cpt > 0)) {
//we have to split the location
char *startloc, *endloc;
@ -363,11 +600,11 @@ int start_http_form(int s, char *ip, int port, unsigned char options, char *misc
redirected_cpt--;
redirected_flag = 0;
//check if the redirect page contains the fail/success condition
#ifdef HAVE_PCRE
#ifdef HAVE_PCRE
if (hydra_string_match(redirected_url_buff, cond) == 1) {
#else
#else
if (strstr(redirected_url_buff, cond) != NULL) {
#endif
#endif
found = success_cond;
} else {
//location could be either absolute http(s):// or / something
@ -382,8 +619,7 @@ int start_http_form(int s, char *ip, int port, unsigned char options, char *misc
if ((endloc = strchr(startloc, '\n')) != NULL) {
startloc[endloc - startloc] = 0;
}
strncpy(str, startloc, sizeof(str));
str[sizeof(str) - 1] = 0;
strcpy(str, startloc);
endloc = strchr(str, '/');
if (endloc != NULL) {
@ -395,12 +631,11 @@ int start_http_form(int s, char *ip, int port, unsigned char options, char *misc
if (strlen(str) - strlen(str2) == 0) {
strcpy(str3, "/");
} else {
strncpy(str3, str + strlen(str2), strlen(str) - strlen(str2));
str3[strlen(str) - strlen(str2)] = 0;
strncpy(str3, str + strlen(str2), strlen(str) - strlen(str2) - 1);
str3[strlen(str) - strlen(str2) - 1] = 0;
}
} else {
strncpy(str2, webtarget, sizeof(str2) - 1);
str2[sizeof(str2) - 1] = 0;
strncpy(str2, webtarget, sizeof(str2));
if (redirected_url_buff[0] != '/') {
//it's a relative path, so we have to concatenate it
//with the path from the first url given
@ -435,27 +670,35 @@ int start_http_form(int s, char *ip, int port, unsigned char options, char *misc
//re-use the code above to check for proxy use
if (use_proxy == 1 && proxy_authentication != NULL) {
// proxy with authentication
sprintf(buffer, "GET http://%s:%d%.600s HTTP/1.0\r\nHost: %s\r\nProxy-Authorization: Basic %s\r\nUser-Agent: Mozilla/4.0 (Hydra)\r\n%s\r\n",
webtarget, webport, str3, str2, proxy_authentication, header);
hdrrepv(&ptr_head, "Host", str2);
memset(proxy_string, 0, sizeof(proxy_string));
snprintf(proxy_string, MAX_PROXY_LENGTH - 1, "http://%s:%d%.600s", webtarget, webport, str3);
normal_request = stringify_headers(&ptr_head);
http_request = prepare_http_request("GET", proxy_string, NULL, normal_request);
} else {
if (use_proxy == 1) {
// proxy without authentication
sprintf(buffer, "GET http://%s:%d%.600s HTTP/1.0\r\nHost: %s\r\nUser-Agent: Mozilla/4.0 (Hydra)\r\n%s\r\n", webtarget, webport, str3, str2, header);
hdrrepv(&ptr_head, "Host", str2);
memset(proxy_string, 0, sizeof(proxy_string));
snprintf(proxy_string, MAX_PROXY_LENGTH - 1, "http://%s:%d%.600s", webtarget, webport, str3);
normal_request = stringify_headers(&ptr_head);
http_request = prepare_http_request("GET", proxy_string, NULL, normal_request);
} else {
//direct web server, no proxy
sprintf(buffer, "GET %.600s HTTP/1.0\r\nHost: %s\r\nUser-Agent: Mozilla/4.0 (Hydra)\r\n%s\r\n", str3, str2, header);
hdrrepv(&ptr_head, "Host", str2);
normal_request = stringify_headers(&ptr_head);
http_request = prepare_http_request("GET", str3, NULL, normal_request);
}
}
hydra_reconnect(s, ip, port, options);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
if (hydra_send(s, http_request, strlen(http_request), 0) < 0)
return 1;
}
found = analyze_server_response(s);
if (strlen(cookie) > 0) {
sprintf(header, "Cookie: %s\r\n", cookie);
}
if (strlen(cookie) > 0 && !header_exists(&ptr_head, "Cookie", HEADER_TYPE_DEFAULT))
add_header(&ptr_head, "Cookie", cookie, HEADER_TYPE_DEFAULT);
}
}
@ -466,143 +709,24 @@ int start_http_form(int s, char *ip, int port, unsigned char options, char *misc
} else {
hydra_completed_pair();
}
return 1;
}
void service_http_form(char *ip, int sp, unsigned char options, char *miscptr, FILE * fp, int port, char *type) {
void service_http_form(char *ip, int sp, unsigned char options, char *miscptr, FILE * fp, int port, char *type, ptr_header_node * ptr_head) {
int run = 1, next_run = 1, sock = -1;
int myport = PORT_HTTP, mysslport = PORT_HTTP_SSL;
char *ptr, *ptr2;
// register our socket descriptor
hydra_register_socket(sp);
if (webtarget != NULL && (webtarget = strstr(miscptr, "://")) != NULL) {
webtarget += strlen("://");
if ((ptr2 = index(webtarget, ':')) != NULL) { /* step over port if present */
*ptr2 = 0;
ptr2++;
ptr = ptr2;
if (*ptr == '/' || (ptr = index(ptr2, '/')) != NULL)
miscptr = ptr;
else
miscptr = slash; /* to make things easier to user */
} else if ((ptr2 = index(webtarget, '/')) != NULL) {
if (freemischttpform == 0) {
freemischttpform = 1;
miscptr = malloc(strlen(ptr2) + 1);
strcpy(miscptr, ptr2);
*ptr2 = 0;
}
} else
webtarget = NULL;
}
if (cmdlinetarget != NULL && webtarget == NULL)
webtarget = cmdlinetarget;
else if (webtarget == NULL && cmdlinetarget == NULL)
webtarget = hydra_address2string(ip);
if (port != 0)
webport = port;
else if ((options & OPTION_SSL) == 0)
webport = myport;
else
webport = mysslport;
sprintf(bufferurl, "%.1000s", miscptr);
url = bufferurl;
ptr = url;
while (*ptr != 0 && (*ptr != ':' || *(ptr - 1) == '\\'))
ptr++;
if (*ptr != 0)
*ptr++ = 0;
variables = ptr;
while (*ptr != 0 && (*ptr != ':' || *(ptr - 1) == '\\'))
ptr++;
if (*ptr != 0)
*ptr++ = 0;
cond = ptr;
while (*ptr != 0 && (*ptr != ':' || *(ptr - 1) == '\\'))
ptr++;
if (*ptr != 0)
*ptr++ = 0;
optional1 = ptr;
if (strstr(url, "\\:") != NULL) {
if ((ptr = malloc(strlen(url))) != NULL) { // no need for +1
strcpy(ptr, hydra_strrep(url, "\\:", ":"));
url = ptr;
}
}
if (strstr(variables, "\\:") != NULL) {
if ((ptr = malloc(strlen(variables))) != NULL) { // no need for +1
strcpy(ptr, hydra_strrep(variables, "\\:", ":"));
variables = ptr;
}
}
if (strstr(cond, "\\:") != NULL) {
if ((ptr = malloc(strlen(cond))) != NULL) { // no need for +1
strcpy(ptr, hydra_strrep(cond, "\\:", ":"));
cond = ptr;
}
}
if (url == NULL || variables == NULL || cond == NULL /*|| optional1 == NULL */ )
hydra_child_exit(2);
//printf("url: %s, var: %s, cond: %s, opt: %s\n", url, variables, cond, optional1);
if (*cond == 0) {
fprintf(stderr, "[ERROR] invalid number of parameters in module option\n");
hydra_child_exit(2);
}
sprintf(cookieurl, "%.1000s", url);
//conditions now have to contain F or S to set the fail or success condition
if (*cond != 0 && (strpos(cond, "F=") == 0)) {
success_cond = 0;
cond += 2;
} else if (*cond != 0 && (strpos(cond, "S=") == 0)) {
success_cond = 1;
cond += 2;
} else {
//by default condition is a fail
success_cond = 0;
}
while ( /*(optional1 = strtok(NULL, ":")) != NULL */ *optional1 != 0) {
switch (optional1[0]) {
case 'c': // fall through
case 'C':
ptr = optional1 + 2;
while (*ptr != 0 && (*ptr != ':' || *(ptr - 1) == '\\'))
ptr++;
if (*ptr != 0)
*ptr++ = 0;
sprintf(cookieurl, "%.1000s", hydra_strrep(optional1 + 2, "\\:", ":"));
optional1 = ptr;
break;
case 'h': // fall through
case 'H':
ptr = optional1 + 2;
while (*ptr != 0 && (*ptr != ':' || *(ptr - 1) == '\\'))
ptr++;
if (*ptr != 0)
*ptr++ = 0;
ptr2 = ptr;
while (*ptr2 != 0 && (*ptr2 != ':' || *(ptr2 - 1) == '\\'))
ptr2++;
if (*ptr2 != 0)
*ptr2++ = 0;
if (sizeof(userheader) - strlen(userheader) > 4) {
strncat(userheader, optional1 + 2, sizeof(userheader) - strlen(userheader) - 4);
strcat(userheader, ":");
strncat(userheader, hydra_strrep(ptr, "\\:", ":"), sizeof(userheader) - strlen(userheader) - 3);
strcat(userheader, "\r\n");
}
optional1 = ptr2;
break;
// no default
}
}
/*
* Iterate through the runs. Possible values are the following:
* - 1 -> Open connection to remote server.
* - 2 -> Run password attempts.
* - 3 -> Disconnect and end with success.
* - 4 -> Disconnect and end with error.
*/
while (1) {
if (run == 2) {
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0) {
@ -629,7 +753,7 @@ void service_http_form(char *ip, int sp, unsigned char options, char *miscptr, F
port = mysslport;
}
if (sock < 0) {
hydra_report(stderr, "[ERROR] Child with pid %d terminating, can not connect\n", (int) getpid());
hydra_report(stderr, "[ERROR] Child with pid %d terminating, cannot connect\n", (int) getpid());
if (freemischttpform)
free(miscptr);
freemischttpform = 0;
@ -639,7 +763,7 @@ void service_http_form(char *ip, int sp, unsigned char options, char *miscptr, F
break;
}
case 2: /* run the cracking function */
next_run = start_http_form(sock, ip, port, options, miscptr, fp, type);
next_run = start_http_form(sock, ip, port, options, miscptr, fp, type, *ptr_head);
break;
case 3: /* clean exit */
if (sock >= 0)
@ -671,11 +795,23 @@ void service_http_form(char *ip, int sp, unsigned char options, char *miscptr, F
}
void service_http_get_form(char *ip, int sp, unsigned char options, char *miscptr, FILE * fp, int port) {
service_http_form(ip, sp, options, miscptr, fp, port, "GET");
ptr_header_node ptr_head = initialize(ip, options, miscptr);
if(ptr_head)
service_http_form(ip, sp, options, miscptr, fp, port, "GET", &ptr_head);
else{
hydra_report(stderr, "[ERROR] Could not launch head. Error while initializing.\n");
hydra_child_exit(1);
}
}
void service_http_post_form(char *ip, int sp, unsigned char options, char *miscptr, FILE * fp, int port) {
service_http_form(ip, sp, options, miscptr, fp, port, "POST");
ptr_header_node ptr_head = initialize(ip, options, miscptr);
if(ptr_head)
service_http_form(ip, sp, options, miscptr, fp, port, "POST", &ptr_head);
else{
hydra_report(stderr, "[ERROR] Could not launch head. Error while initializing.\n");
hydra_child_exit(1);
}
}
int service_http_form_init(char *ip, int sp, unsigned char options, char *miscptr, FILE * fp, int port) {
@ -691,3 +827,209 @@ int service_http_form_init(char *ip, int sp, unsigned char options, char *miscpt
return 0;
}
ptr_header_node initialize(char * ip, unsigned char options, char * miscptr) {
ptr_header_node ptr_head = NULL;
char *ptr, *ptr2;
char *proxy_string;
if (webtarget != NULL && (webtarget = strstr(miscptr, "://")) != NULL) {
webtarget += strlen("://");
if ((ptr2 = index(webtarget, ':')) != NULL) { /* step over port if present */
*ptr2 = 0;
ptr2++;
ptr = ptr2;
if (*ptr == '/' || (ptr = index(ptr2, '/')) != NULL)
miscptr = ptr;
else
miscptr = slash; /* to make things easier to user */
} else if ((ptr2 = index(webtarget, '/')) != NULL) {
if (freemischttpform == 0) {
freemischttpform = 1;
miscptr = malloc(strlen(ptr2) + 1);
strcpy(miscptr, ptr2);
*ptr2 = 0;
}
} else
webtarget = NULL;
}
if (cmdlinetarget != NULL && webtarget == NULL)
webtarget = cmdlinetarget;
else if (webtarget == NULL && cmdlinetarget == NULL)
webtarget = hydra_address2string(ip);
if (port != 0)
webport = port;
else if ((options & OPTION_SSL) == 0)
webport = PORT_HTTP;
else
webport = PORT_HTTP_SSL;
sprintf(bufferurl, "%.1000s", miscptr);
url = bufferurl;
ptr = url;
while (*ptr != 0 && (*ptr != ':' || *(ptr - 1) == '\\'))
ptr++;
if (*ptr != 0)
*ptr++ = 0;
variables = ptr;
while (*ptr != 0 && (*ptr != ':' || *(ptr - 1) == '\\'))
ptr++;
if (*ptr != 0)
*ptr++ = 0;
cond = ptr;
while (*ptr != 0 && (*ptr != ':' || *(ptr - 1) == '\\'))
ptr++;
if (*ptr != 0)
*ptr++ = 0;
optional1 = ptr;
if (strstr(url, "\\:") != NULL) {
if ((ptr = malloc(strlen(url))) != NULL) {
strcpy(ptr, hydra_strrep(url, "\\:", ":"));
url = ptr;
}
}
if (strstr(variables, "\\:") != NULL) {
if ((ptr = malloc(strlen(variables))) != NULL) {
strcpy(ptr, hydra_strrep(variables, "\\:", ":"));
variables = ptr;
}
}
if (strstr(cond, "\\:") != NULL) {
if ((ptr = malloc(strlen(cond))) != NULL) {
strcpy(ptr, hydra_strrep(cond, "\\:", ":"));
cond = ptr;
}
}
if (url == NULL || variables == NULL || cond == NULL /*|| optional1 == NULL */ )
hydra_child_exit(2);
if (*cond == 0) {
fprintf(stderr, "[ERROR] invalid number of parameters in module option\n");
return NULL;
}
sprintf(cookieurl, "%.1000s", url);
//conditions now have to contain F or S to set the fail or success condition
if (*cond != 0 && (strpos(cond, "F=") == 0)) {
success_cond = 0;
cond += 2;
} else if (*cond != 0 && (strpos(cond, "S=") == 0)) {
success_cond = 1;
cond += 2;
} else {
//by default condition is a fail
success_cond = 0;
}
char *header = NULL, *value = NULL;
while ( /*(optional1 = strtok(NULL, ":")) != NULL */ *optional1 != 0) {
switch (optional1[0]) {
case 'c': // fall through
case 'C':
ptr = optional1 + 2;
while (*ptr != 0 && (*ptr != ':' || *(ptr - 1) == '\\'))
ptr++;
if (*ptr != 0)
*ptr++ = 0;
sprintf(cookieurl, "%.1000s", hydra_strrep(optional1 + 2, "\\:", ":"));
optional1 = ptr;
break;
case 'h':
// add a new header at the end
ptr = optional1 + 2;
while (*ptr != 0 && (*ptr != ':' || *(ptr - 1) == '\\'))
ptr++;
if (*ptr != 0)
*ptr++ = 0;
ptr2 = ptr;
while (*ptr2 != 0 && (*ptr2 != ':' || *(ptr2 - 1) == '\\'))
ptr2++;
if (*ptr2 != 0)
*ptr2++ = 0;
/*
* At this point:
* - (optional1 + 2) contains the header's name
* - ptr contains the header's value
*/
if(add_header(&ptr_head, optional1 + 2, hydra_strrep(ptr, "\\:", ":"), HEADER_TYPE_USERHEADER)){
// Success: break the switch and go ahead
optional1 = ptr2;
break;
}
// Error: abort execution
hydra_report(stderr, "[ERROR] Out of memory for HTTP headers.");
return NULL;
case 'H':
// add a new header, or replace an existing one's value
ptr = optional1 + 2;
while (*ptr != 0 && (*ptr != ':' || *(ptr - 1) == '\\'))
ptr++;
if (*ptr != 0)
*ptr++ = 0;
ptr2 = ptr;
while (*ptr2 != 0 && (*ptr2 != ':' || *(ptr2 - 1) == '\\'))
ptr2++;
if (*ptr2 != 0)
*ptr2++ = 0;
/*
* At this point:
* - (optional1 + 2) contains the header's name
* - ptr contains the header's value
*/
if(add_header(&ptr_head, optional1 + 2, hydra_strrep(ptr, "\\:", ":"), HEADER_TYPE_USERHEADER_REPL)){
// Success: break the switch and go ahead
optional1 = ptr2;
break;
}
// Error: abort execution
hydra_report(stderr, "[ERROR] Out of memory for HTTP headers.");
return NULL;
// no default
}
}
/* again: no snprintf to be portable. dont worry, buffer cant overflow */
if (use_proxy == 1 && proxy_authentication != NULL) {
// proxy with authentication
add_header(&ptr_head, "Host", webtarget, HEADER_TYPE_DEFAULT);
add_header(&ptr_head, "User-Agent", "Mozilla 5.0 (Hydra Proxy Auth)", HEADER_TYPE_DEFAULT);
proxy_string = (char *) malloc(strlen(proxy_authentication) + 6);
if(proxy_string) {
strcpy(proxy_string, "Basic ");
strncat(proxy_string, proxy_authentication, strlen(proxy_authentication) - 6);
add_header(&ptr_head, "Proxy-Authorization", proxy_string, HEADER_TYPE_DEFAULT);
}else{
hydra_report(stderr, "Out of memory for \"Proxy-Authorization\" header.");
return NULL;
}
if (getcookie) {
//doing a GET to save cookies
cookie_request = stringify_headers(&ptr_head);
}
normal_request = stringify_headers(&ptr_head);
} else {
if (use_proxy == 1) {
// proxy without authentication
add_header(&ptr_head, "Host", webtarget, HEADER_TYPE_DEFAULT);
add_header(&ptr_head, "User-Agent", "Mozilla/5.0 (Hydra Proxy)", HEADER_TYPE_DEFAULT);
if (getcookie) {
//doing a GET to get cookies
cookie_request = stringify_headers(&ptr_head);
}
normal_request = stringify_headers(&ptr_head);
} else {
// direct web server, no proxy
add_header(&ptr_head, "Host", webtarget, HEADER_TYPE_DEFAULT);
add_header(&ptr_head, "User-Agent", "Mozilla/5.0 (Hydra)", HEADER_TYPE_DEFAULT);
if (getcookie) {
//doing a GET to save cookies
cookie_request = stringify_headers(&ptr_head);
}
normal_request = stringify_headers(&ptr_head);
}
}
return ptr_head;
}

12
hydra.c
View file

@ -563,13 +563,21 @@ void module_usage() {
" failed string looks like and put it in this parameter!\n"
"The following parameters are optional:\n"
" C=/page/uri to define a different page to gather initial cookies from\n"
" H=My-Hdr: foo to send a user defined HTTP header with each request\n"
" (h|H)=My-Hdr: foo to send a user defined HTTP header with each request\n"
" ^USER^ and ^PASS^ can also be put into these headers!\n"
" Note that 'h' and 'H' are not the same. The former will add the user-defined header at the end"
" regardless it's already being sent by Hydra or not. The latter will replace the value of that header"
" if it exists, by the one supplied by the user, or add the header at the end if it does not exist."
" For example: 'h=User-Agent: Googlebot' would send two 'User-Agent' headers, the one supplied by default"
" ('Mozilla/5.0 (Hydra)'), and the one supplied by the user ('Googlebot'). 'H=User-Agent: Googlebot' would"
" only send a single 'User-Agent' header with the value supplied, effectively replacing the default user agent."
" This is useful to pass hidden CSRF token fields that are tied to a previously issued cookie and are unique"
" for each session. Various C/H/h parameters can be specified separated by colons and optionally intermixed."
"Examples:\n"
" \"/login.php:user=^USER^&pass=^PASS^:incorrect\"\n"
" \"/login.php:user=^USER^&pass=^PASS^&colon=colon\\:escape:S=authlog=.*success\"\n"
" \"/login.php:user=^USER^&pass=^PASS^&mid=123:authlog=.*failed\"\n"
" \"/:user=^USER&pass=^PASS^:failed:H=Authorization: Basic dT1w:H=X-User: ^USER^\"\n"
" \"/:user=^USER&pass=^PASS^:failed:H=Authorization: Basic dT1w:H=Cookie: sessid=aaaa:h=X-User: ^USER^\"\n"
" \"/exchweb/bin/auth/owaauth.dll:destination=http%%3A%%2F%%2F<target>%%2Fexchange&flags=0&username=<domain>%%5C^USER^&password=^PASS^&SubmitCreds=x&trusted=0:reason=:C=/exchweb\"\n",
hydra_options.service);
find = 1;