/*
RFC 4616: The PLAIN Simple Authentication and Security Layer (SASL) Mechanism
sasl_plain computes the plain authentication from strings login and password
and stored the value in variable result
the first parameter result must be able to hold at least 255 bytes!
*/
void sasl_plain(char *result, char *login, char *pass) {
char *preplogin;
char *preppasswd;
int rc = sasl_saslprep(login, SASL_ALLOW_UNASSIGNED, &preplogin);
if (rc) {
result = NULL;
return;
}
rc = sasl_saslprep(pass, 0, &preppasswd);
if (rc) {
free(preplogin);
result = NULL;
return;
}
if (2 * strlen(preplogin) + 3 + strlen(preppasswd) < 180) {
strcpy(result, preplogin);
strcpy(result + strlen(preplogin) + 1, preplogin);
strcpy(result + 2 * strlen(preplogin) + 2, preppasswd);
hydra_tobase64((unsigned char *) result, strlen(preplogin) * 2 + strlen(preppasswd) + 2, 250);
}
free(preplogin);
free(preppasswd);
}
/*
RFC 2195: IMAP/POP AUTHorize Extension for Simple Challenge/Response
sasl_cram_md5 computes the cram-md5 authentication from password string
and the challenge sent by the server, and stored the value in variable
result
the parameter result must be able to hold at least 100 bytes!
*/
void sasl_cram_md5(char *result, char *pass, char *challenge) {
char ipad[64];
char opad[64];
unsigned char md5_raw[MD5_DIGEST_LENGTH];
MD5_CTX md5c;
int i, rc;
char *preppasswd;
if (challenge == NULL) {
result = NULL;
return;
}
rc = sasl_saslprep(pass, 0, &preppasswd);
if (rc) {
result = NULL;
return;
}
memset(ipad, 0, sizeof(ipad));
memset(opad, 0, sizeof(opad));
if (strlen(preppasswd) >= 64) {
MD5_Init(&md5c);
MD5_Update(&md5c, preppasswd, strlen(preppasswd));
MD5_Final(md5_raw, &md5c);
memcpy(ipad, md5_raw, MD5_DIGEST_LENGTH);
memcpy(opad, md5_raw, MD5_DIGEST_LENGTH);
} else {
strcpy(ipad, preppasswd); // safe
strcpy(opad, preppasswd); // safe
}
for (i = 0; i < 64; i++) {
ipad[i] ^= 0x36;
opad[i] ^= 0x5c;
}
MD5_Init(&md5c);
MD5_Update(&md5c, ipad, 64);
MD5_Update(&md5c, challenge, strlen(challenge));
MD5_Final(md5_raw, &md5c);
MD5_Init(&md5c);
MD5_Update(&md5c, opad, 64);
MD5_Update(&md5c, md5_raw, MD5_DIGEST_LENGTH);
MD5_Final(md5_raw, &md5c);
for (i = 0; i < MD5_DIGEST_LENGTH; i++) {
sprintf(result, "%02x", md5_raw[i]);
result += 2;
}
free(preppasswd);
}
/*
sasl_cram_sha256 computes the cram-sha256 authentication from password string
and the challenge sent by the server, and stored the value in variable
result
the parameter result must be able to hold at least 100 bytes!
*/
void sasl_cram_sha256(char *result, char *pass, char *challenge) {
char ipad[64];
char opad[64];
unsigned char sha256_raw[SHA256_DIGEST_LENGTH];
SHA256_CTX sha256c;
int i, rc;
char *preppasswd;
if (challenge == NULL) {
result = NULL;
return;
}
memset(ipad, 0, sizeof(ipad));
memset(opad, 0, sizeof(opad));
rc = sasl_saslprep(pass, 0, &preppasswd);
if (rc) {
result = NULL;
return;
}
if (strlen(preppasswd) >= 64) {
SHA256_Init(&sha256c);
SHA256_Update(&sha256c, preppasswd, strlen(preppasswd));
SHA256_Final(sha256_raw, &sha256c);
memcpy(ipad, sha256_raw, SHA256_DIGEST_LENGTH);
memcpy(opad, sha256_raw, SHA256_DIGEST_LENGTH);
} else {
strcpy(ipad, preppasswd); // safe
strcpy(opad, preppasswd); // safe
}
for (i = 0; i < 64; i++) {
ipad[i] ^= 0x36;
opad[i] ^= 0x5c;
}
SHA256_Init(&sha256c);
SHA256_Update(&sha256c, ipad, 64);
SHA256_Update(&sha256c, challenge, strlen(challenge));
SHA256_Final(sha256_raw, &sha256c);
SHA256_Init(&sha256c);
SHA256_Update(&sha256c, opad, 64);
SHA256_Update(&sha256c, sha256_raw, SHA256_DIGEST_LENGTH);
SHA256_Final(sha256_raw, &sha256c);
for (i = 0; i < SHA256_DIGEST_LENGTH; i++) {
sprintf(result, "%02x", sha256_raw[i]);
result += 2;
}
free(preppasswd);
}
int start_smtp(int s, char *ip, int port, unsigned char options, char *miscptr, FILE * fp) {
char *empty = "";
char *login, *pass, buffer[500], buffer2[500];
if (strlen(login = hydra_get_next_login()) == 0)
login = empty;
if (strlen(pass = hydra_get_next_password()) == 0)
pass = empty;
while (hydra_data_ready(s) > 0) {
if ((buf = hydra_receive_line(s)) == NULL)
return (1);
free(buf);
}
switch (smtp_auth_mechanism) {
case AUTH_PLAIN:
sprintf(buffer, "AUTH PLAIN\r\n");
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
if (strstr(buf, "334") == NULL) {
hydra_report(stderr, "[ERROR] SMTP PLAIN AUTH : %s\n", buf);
free(buf);
return 3;
}
free(buf);
memset(buffer, 0, sizeof(buffer));
sasl_plain(buffer, login, pass);
sprintf(buffer, "%.250s\r\n", buffer);
break;
#ifdef LIBOPENSSLNEW
case AUTH_CRAMMD5:{
int rc = 0;
char *preplogin;
rc = sasl_saslprep(login, SASL_ALLOW_UNASSIGNED, &preplogin);
if (rc) {
return 3;
}
sprintf(buffer, "AUTH CRAM-MD5\r\n");
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
//get the one-time BASE64 encoded challenge
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
if (strstr(buf, "334") == NULL) {
hydra_report(stderr, "[ERROR] SMTP CRAM-MD5 AUTH : %s\n", buf);
free(buf);
return 3;
}
memset(buffer, 0, sizeof(buffer));
from64tobits((char *) buffer, buf + 4);
free(buf);
memset(buffer2, 0, sizeof(buffer2));
sasl_cram_md5(buffer2, pass, buffer);
sprintf(buffer, "%s %.250s", preplogin, buffer2);
hydra_tobase64((unsigned char *) buffer, strlen(buffer), sizeof(buffer));
sprintf(buffer, "%.250s\r\n", buffer);
free(preplogin);
}
break;
case AUTH_DIGESTMD5:{
sprintf(buffer, "AUTH DIGEST-MD5\r\n");
if (hydra_send(s, buffer, strlen(buffer), 0) < 0)
return 1;
//receive
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
if (strstr(buf, "334") == NULL) {
hydra_report(stderr, "[ERROR] SMTP DIGEST-MD5 AUTH : %s\n", buf);
free(buf);
return 3;
}
memset(buffer, 0, sizeof(buffer));
from64tobits((char *) buffer, buf + 4);
free(buf);
if (verbose)
hydra_report(stderr, "DEBUG S: %s\n", buffer);
sasl_digest_md5(buffer2, login, pass, buffer, miscptr, "smtp", NULL, 0, NULL);
if (buffer2 == NULL)
return 3;
if (verbose)
hydra_report(stderr, "DEBUG C: %s\n", buffer2);
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
sprintf(buffer, "%s\r\n", buffer2);
}
break;
#endif
case AUTH_NTLM:{
unsigned char buf1[4096];
unsigned char buf2[4096];
//send auth and receive challenge
buildAuthRequest((tSmbNtlmAuthRequest *) buf2, 0, NULL, NULL);
to64frombits(buf1, buf2, SmbLength((tSmbNtlmAuthRequest *) buf2));
sprintf(buffer, "AUTH NTLM %s\r\n", buf1);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
if (strstr(buf, "334") == NULL) {
hydra_report(stderr, "[ERROR] SMTP NTLM AUTH : %s\n", buf);
free(buf);
return 3;
}
//recover challenge
from64tobits((char *) buf1, buf + 4);
free(buf);
buildAuthResponse((tSmbNtlmAuthChallenge *) buf1, (tSmbNtlmAuthResponse *) buf2, 0, login, pass, NULL, NULL);
to64frombits(buf1, buf2, SmbLength((tSmbNtlmAuthResponse *) buf2));
sprintf(buffer, "%s\r\n", buf1);
}
break;
default:
/* by default trying AUTH LOGIN */
sprintf(buffer, "AUTH LOGIN\r\n");
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
/* 504 5.7.4 Unrecognized authentication type */
if (strstr(buf, "334") == NULL) {
hydra_report(stderr, "[ERROR] SMTP LOGIN AUTH, either this auth is disabled\nor server is not using auth: %s\n", buf);
free(buf);
return 3;
}
free(buf);
sprintf(buffer2, "%.250s", login);
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
sprintf(buffer, "%.250s\r\n", buffer2);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return (1);
if (strstr(buf, "334") == NULL) {
hydra_report(stderr, "[ERROR] SMTP LOGIN AUTH : %s\n", buf);
free(buf);
return (3);
}
free(buf);
sprintf(buffer2, "%.250s", pass);
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
sprintf(buffer, "%.250s\r\n", buffer2);
}
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return (1);
#ifdef LIBOPENSSLNEW
if (smtp_auth_mechanism == AUTH_DIGESTMD5) {
if (strstr(buf, "334") != NULL) {
memset(buffer2, 0, sizeof(buffer2));
from64tobits((char *) buffer2, buf + 4);
if (strstr(buffer2, "rspauth=") != NULL) {
hydra_report_found_host(port, ip, "smtp", fp);
hydra_completed_pair_found();
free(buf);
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
return 3;
return 1;
}
}
} else
#endif
{
if (strstr(buf, "235") != NULL) {
hydra_report_found_host(port, ip, "smtp", fp);
hydra_completed_pair_found();
free(buf);
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
return 3;
return 1;
}
}
free(buf);
hydra_completed_pair();
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
return 3;
return 2;
}
int start_pop3(int s, char *ip, int port, unsigned char options, char *miscptr, FILE * fp) {
char *empty = "\"\"";
char *login, *pass, buffer[500], buffer2[500];
if (strlen(login = hydra_get_next_login()) == 0)
login = empty;
if (strlen(pass = hydra_get_next_password()) == 0)
pass = empty;
while (hydra_data_ready(s) > 0) {
if ((buf = hydra_receive_line(s)) == NULL)
return 4;
free(buf);
}
switch (p->pop3_auth_mechanism) {
#ifdef LIBOPENSSL
case AUTH_APOP:{
MD5_CTX c;
unsigned char md5_raw[MD5_DIGEST_LENGTH];
int i;
char *pbuffer = buffer2;
MD5_Init(&c);
MD5_Update(&c, apop_challenge, strlen(apop_challenge));
MD5_Update(&c, pass, strlen(pass));
MD5_Final(md5_raw, &c);
for (i = 0; i < MD5_DIGEST_LENGTH; i++) {
sprintf(pbuffer, "%02x", md5_raw[i]);
pbuffer += 2;
}
sprintf(buffer, "APOP %s %s\r\n", login, buffer2);
}
break;
#endif
case AUTH_LOGIN:{
sprintf(buffer, "AUTH LOGIN\r\n");
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return 4;
if (buf[0] != '+') {
hydra_report(stderr, "[ERROR] POP3 LOGIN AUTH : %s\n", buf);
free(buf);
return 3;
}
free(buf);
strcpy(buffer2, login);
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
sprintf(buffer, "%.250s\r\n", buffer2);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return 4;
if (buf[0] != '+') {
hydra_report(stderr, "[ERROR] POP3 LOGIN AUTH : %s\n", buf);
free(buf);
return 3;
}
free(buf);
strcpy(buffer2, pass);
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
sprintf(buffer, "%.250s\r\n", buffer2);
}
break;
case AUTH_PLAIN:{
sprintf(buffer, "AUTH PLAIN\r\n");
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return 4;
if (buf[0] != '+') {
hydra_report(stderr, "[ERROR] POP3 PLAIN AUTH : %s\n", buf);
free(buf);
return 3;
}
free(buf);
memset(buffer, 0, sizeof(buffer));
sasl_plain(buffer, login, pass);
sprintf(buffer, "%.250s\r\n", buffer);
}
break;
#ifdef LIBOPENSSL
case AUTH_CRAMMD5:
case AUTH_CRAMSHA1:
case AUTH_CRAMSHA256:{
int rc = 0;
char *preplogin;
rc = sasl_saslprep(login, SASL_ALLOW_UNASSIGNED, &preplogin);
if (rc) {
return 3;
}
switch (p->pop3_auth_mechanism) {
case AUTH_CRAMMD5:
sprintf(buffer, "AUTH CRAM-MD5\r\n");
break;
case AUTH_CRAMSHA1:
sprintf(buffer, "AUTH CRAM-SHA1\r\n");
break;
case AUTH_CRAMSHA256:
sprintf(buffer, "AUTH CRAM-SHA256\r\n");
break;
}
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
//get the one-time BASE64 encoded challenge
if ((buf = hydra_receive_line(s)) == NULL)
return 4;
if (buf[0] != '+') {
switch (p->pop3_auth_mechanism) {
case AUTH_CRAMMD5:
hydra_report(stderr, "[ERROR] POP3 CRAM-MD5 AUTH : %s\n", buf);
break;
case AUTH_CRAMSHA1:
hydra_report(stderr, "[ERROR] POP3 CRAM-SHA1 AUTH : %s\n", buf);
break;
case AUTH_CRAMSHA256:
hydra_report(stderr, "[ERROR] POP3 CRAM-SHA256 AUTH : %s\n", buf);
break;
}
free(buf);
return 3;
}
memset(buffer, 0, sizeof(buffer));
from64tobits((char *) buffer, buf + 2);
free(buf);
memset(buffer2, 0, sizeof(buffer2));
switch (p->pop3_auth_mechanism) {
case AUTH_CRAMMD5:{
sasl_cram_md5(buffer2, pass, buffer);
sprintf(buffer, "%s %.250s", preplogin, buffer2);
}
break;
case AUTH_CRAMSHA1:{
sasl_cram_sha1(buffer2, pass, buffer);
sprintf(buffer, "%s %.250s", preplogin, buffer2);
}
break;
case AUTH_CRAMSHA256:{
sasl_cram_sha256(buffer2, pass, buffer);
sprintf(buffer, "%s %.250s", preplogin, buffer2);
}
break;
}
hydra_tobase64((unsigned char *) buffer, strlen(buffer), sizeof(buffer));
sprintf(buffer, "%.250s\r\n", buffer);
free(preplogin);
}
break;
case AUTH_DIGESTMD5:{
sprintf(buffer, "AUTH DIGEST-MD5\r\n");
if (hydra_send(s, buffer, strlen(buffer), 0) < 0)
return 1;
//receive
if ((buf = hydra_receive_line(s)) == NULL)
return 4;
if (buf[0] != '+') {
hydra_report(stderr, "[ERROR] POP3 DIGEST-MD5 AUTH : %s\n", buf);
free(buf);
return 3;
}
memset(buffer, 0, sizeof(buffer));
from64tobits((char *) buffer, buf);
free(buf);
if (verbose)
hydra_report(stderr, "[VERBOSE] S: %s\n", buffer);
sasl_digest_md5(buffer2, login, pass, buffer, miscptr, "pop", NULL, 0, NULL);
if (buffer2 == NULL)
return 3;
if (verbose)
hydra_report(stderr, "[VERBOSE] C: %s\n", buffer2);
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
sprintf(buffer, "%s\r\n", buffer2);
}
break;
#endif
case AUTH_NTLM:{
unsigned char buf1[4096];
unsigned char buf2[4096];
//Send auth request
sprintf(buffer, "AUTH NTLM\r\n");
if (hydra_send(s, buffer, strlen(buffer), 0) < 0)
return 1;
//receive
if ((buf = hydra_receive_line(s)) == NULL)
return 4;
if (buf[0] != '+') {
hydra_report(stderr, "[ERROR] POP3 NTLM AUTH : %s\n", buf);
free(buf);
return 3;
}
free(buf);
//send auth and receive challenge
//send auth request: lst the server send it's own hostname and domainname
buildAuthRequest((tSmbNtlmAuthRequest *) buf2, 0, NULL, NULL);
to64frombits(buf1, buf2, SmbLength((tSmbNtlmAuthRequest *) buf2));
sprintf(buffer, "%s\r\n", buf1);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0)
return 1;
if ((buf = hydra_receive_line(s)) == NULL)
return 4;
//recover challenge
from64tobits((char *) buf1, buf + 2);
free(buf);
//Send response
buildAuthResponse((tSmbNtlmAuthChallenge *) buf1, (tSmbNtlmAuthResponse *) buf2, 0, login, pass, NULL, NULL);
to64frombits(buf1, buf2, SmbLength((tSmbNtlmAuthResponse *) buf2));
sprintf(buffer, "%s\r\n", buf1);
}
break;
default:
sprintf(buffer, "USER %.250s\r\n", login);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return 4;
if (buf[0] != '+') {
hydra_report(stderr, "[ERROR] POP3 protocol or service shutdown: %s\n", buf);
free(buf);
return (3);
}
free(buf);
sprintf(buffer, "PASS %.250s\r\n", pass);
}
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL) {
return 4;
}
if (buf[0] == '+') {
hydra_report_found_host(port, ip, "pop3", fp);
hydra_completed_pair_found();
free(buf);
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
return 3;
return 1;
}
/* special AS/400 hack */
if (strstr(buf, "CPF2204") != NULL || strstr(buf, "CPF22E3") != NULL || strstr(buf, "CPF22E4") != NULL || strstr(buf, "CPF22E5") != NULL) {
hydra_completed_pair_skip();
free(buf);
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
return 3;
return 1;
}
free(buf);
hydra_completed_pair();
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
return 3;
return 2;
}
/*
RFC 5802: Salted Challenge Response Authentication Mechanism
Note: SCRAM is a client-first SASL mechanism
I want to thx Simon Josefsson for his public server test,
and my girlfriend that let me work on that 2 whole nights ;)
clientfirstmessagebare must be at least 500 bytes in size!
*/
void sasl_scram_sha1(char *result, char *pass, char *clientfirstmessagebare, char *serverfirstmessage) {
int saltlen = 0;
int iter = 4096;
char *salt, *nonce, *ic;
unsigned int resultlen = 0;
char clientfinalmessagewithoutproof[200];
char buffer[500];
unsigned char SaltedPassword[SHA_DIGEST_LENGTH];
unsigned char ClientKey[SHA_DIGEST_LENGTH];
unsigned char StoredKey[SHA_DIGEST_LENGTH];
unsigned char ClientSignature[SHA_DIGEST_LENGTH];
char AuthMessage[1024];
char ClientProof[SHA_DIGEST_LENGTH];
unsigned char clientproof_b64[50];
char *preppasswd;
int rc = sasl_saslprep(pass, 0, &preppasswd);
if (rc) {
result = NULL;
return;
}
/*client-final-message */
if (debug)
hydra_report(stderr, "DEBUG S: %s\n", serverfirstmessage);
//r=hydra28Bo7kduPpAZLzhRQiLxc8Y9tiwgw+yP,s=ldDgevctH+Kg7b8RnnA3qA==,i=4096
if (strstr(serverfirstmessage, "r=") == NULL) {
hydra_report(stderr, "Error: Can't understand server message\n");
free(preppasswd);
result = NULL;
return;
}
strncpy(buffer, serverfirstmessage, sizeof(buffer) - 1);
buffer[sizeof(buffer) - 1] = '\0';
nonce = strtok(buffer, ",");
//continue to search from the previous successful call
salt = strtok(NULL, ",");
ic = strtok(NULL, ",");
iter = atoi(ic + 2);
if (iter == 0) {
hydra_report(stderr, "Error: Can't understand server response\n");
free(preppasswd);
result = NULL;
return;
}
if ((nonce != NULL) && (strlen(nonce) > 2))
snprintf(clientfinalmessagewithoutproof, sizeof(clientfinalmessagewithoutproof), "c=biws,%s", nonce);
else {
hydra_report(stderr, "Error: Could not identify server nonce value\n");
free(preppasswd);
result = NULL;
return;
}
if ((salt != NULL) && (strlen(salt) > 2) && (strlen(salt) <= sizeof(buffer)))
//s=ghgIAfLl1+yUy/Xl1WD5Tw== remove the header s=
strcpy(buffer, salt + 2);
else {
hydra_report(stderr, "Error: Could not identify server salt value\n");
free(preppasswd);
result = NULL;
return;
}
/* SaltedPassword := Hi(Normalize(password), salt, i) */
saltlen = from64tobits((char *) salt, buffer);
if (PKCS5_PBKDF2_HMAC_SHA1(preppasswd, strlen(preppasswd), (unsigned char *) salt, saltlen, iter, SHA_DIGEST_LENGTH, SaltedPassword) != 1) {
hydra_report(stderr, "Error: Failed to generate PBKDF2\n");
free(preppasswd);
result = NULL;
return;
}
/* ClientKey := HMAC(SaltedPassword, "Client Key") */
#define CLIENT_KEY "Client Key"
HMAC(EVP_sha1(), SaltedPassword, SHA_DIGEST_LENGTH, (const unsigned char *) CLIENT_KEY, strlen(CLIENT_KEY), ClientKey, &resultlen);
/* StoredKey := H(ClientKey) */
SHA1((const unsigned char *) ClientKey, SHA_DIGEST_LENGTH, StoredKey);
/* ClientSignature := HMAC(StoredKey, AuthMessage) */
snprintf(AuthMessage, 500, "%s,%s,%s", clientfirstmessagebare, serverfirstmessage, clientfinalmessagewithoutproof);
HMAC(EVP_sha1(), StoredKey, SHA_DIGEST_LENGTH, (const unsigned char *) AuthMessage, strlen(AuthMessage), ClientSignature, &resultlen);
/* ClientProof := ClientKey XOR ClientSignature */
xor(ClientProof, (char *) ClientKey, (char *) ClientSignature, 20);
to64frombits(clientproof_b64, (const unsigned char *) ClientProof, 20);
snprintf(result, 500, "%s,p=%s", clientfinalmessagewithoutproof, clientproof_b64);
if (debug)
hydra_report(stderr, "DEBUG C: %s\n", result);
free(preppasswd);
}
/*
RFC 2831: Using Digest Authentication as a SASL Mechanism
the parameter result must be able to hold at least 500 bytes!!
*/
void sasl_digest_md5(char *result, char *login, char *pass, char *buffer, char *miscptr, char *type, char *webtarget, int webport, char *header) {
char *pbuffer = NULL;
int array_size = 10;
unsigned char response[MD5_DIGEST_LENGTH];
char *array[array_size];
char buffer2[500], buffer3[500], nonce[200], realm[50], algo[20];
int i = 0, ind = 0, lastpos = 0, currentpos = 0, intq = 0, auth_find = 0;
MD5_CTX md5c;
char *preplogin;
char *preppasswd;
int rc = sasl_saslprep(login, SASL_ALLOW_UNASSIGNED, &preplogin);
memset(realm, 0, sizeof(realm));
if (rc) {
result = NULL;
return;
}
rc = sasl_saslprep(pass, 0, &preppasswd);
if (rc) {
free(preplogin);
result = NULL;
return;
}
//DEBUG S: nonce="HB3HGAk+hxKpijy/ichq7Wob3Zo17LPM9rr4kMX7xRM=",realm="tida",qop="auth",maxbuf=4096,charset=utf-8,algorithm=md5-sess
//DEBUG S: nonce="1Mr6c8WjOd/x5r8GUnGeQIRNUtOVtItu3kQOGAmsZfM=",realm="test.com",qop="auth,auth-int,auth-conf",cipher="rc4-40,rc4-56,rc4,des,3des",maxbuf=4096,charset=utf-8,algorithm=md5-sess
//warning some not well configured xmpp server is sending no realm
//DEBUG S: nonce="3448160828",qop="auth",charset=utf-8,algorithm=md5-sess
pbuffer = buffer;
do {
currentpos++;
if (pbuffer[0] == '"') {
if (intq == 0)
intq = 1;
else {
intq = 0;
}
}
if ((pbuffer[0] == ',') && (intq == 0)) {
array[ind] = malloc(currentpos);
strncpy(array[ind], buffer + lastpos, currentpos - 1);
array[ind][currentpos - 1] = '\0';
ind++;
lastpos += currentpos;
currentpos = 0;
}
pbuffer++;
} while ((pbuffer[0] != '\0') && (pbuffer[0] > 31) && (ind < array_size));
//save the latest one
if (ind < array_size) {
array[ind] = malloc(currentpos + 1);
strncpy(array[ind], buffer + lastpos, currentpos);
array[ind][currentpos] = '\0';
ind++;
}
for (i = 0; i < ind; i++) {
//removing space chars between comma separated value if any
while ((array[i] != NULL) && (array[i][0] == ' ')) {
char *tmp = strdup(array[i]);
memset(array[i], 0, sizeof(array[i]));
strcpy(array[i], tmp + 1);
free(tmp);
}
if (strstr(array[i], "nonce=") != NULL) {
//check if it contains double-quote
if (strstr(array[i], "\"") != NULL) {
//assume last char is also a double-quote
int nonce_string_len = strlen(array[i]) - strlen("nonce=\"") - 1;
if ((nonce_string_len > 0) && (nonce_string_len <= sizeof(nonce) - 1)) {
strncpy(nonce, strstr(array[i], "nonce=") + strlen("nonce=") + 1, nonce_string_len);
nonce[nonce_string_len] = '\0';
} else {
int j;
for (j = 0; j < ind; j++)
if (array[j] != NULL)
free(array[j]);
hydra_report(stderr, "Error: DIGEST-MD5 nonce from server could not be extracted\n");
result = NULL;
return;
}
} else {
strncpy(nonce, strstr(array[i], "nonce=") + strlen("nonce="), sizeof(nonce) - 1);
nonce[sizeof(nonce) - 1] = '\0';
}
}
if (strstr(array[i], "realm=") != NULL) {
if (strstr(array[i], "\"") != NULL) {
//assume last char is also a double-quote
int realm_string_len = strlen(array[i]) - strlen("realm=\"") - 1;
if ((realm_string_len > 0) && (realm_string_len <= sizeof(realm) - 1)) {
strncpy(realm, strstr(array[i], "realm=") + strlen("realm=") + 1, realm_string_len);
realm[realm_string_len] = '\0';
} else {
int i;
for (i = 0; i < ind; i++)
if (array[i] != NULL)
free(array[i]);
hydra_report(stderr, "Error: DIGEST-MD5 realm from server could not be extracted\n");
result = NULL;
return;
}
} else {
strncpy(realm, strstr(array[i], "realm=") + strlen("realm="), sizeof(realm) - 1);
realm[sizeof(realm) - 1] = '\0';
}
}
if (strstr(array[i], "qop=") != NULL) {
/*
The value "auth" indicates authentication; the value "auth-int" indicates
authentication with integrity protection; the value "auth-conf"
indicates authentication with integrity protection and encryption.
*/
auth_find = 1;
if ((strstr(array[i], "\"auth\"") == NULL) && (strstr(array[i], "\"auth,") == NULL) && (strstr(array[i], ",auth\"") == NULL)) {
int j;
for (j = 0; j < ind; j++)
if (array[j] != NULL)
free(array[j]);
hydra_report(stderr, "Error: DIGEST-MD5 quality of protection only authentication is not supported by server\n");
result = NULL;
return;
}
}
if (strstr(array[i], "algorithm=") != NULL) {
if (strstr(array[i], "\"") != NULL) {
//assume last char is also a double-quote
int algo_string_len = strlen(array[i]) - strlen("algorithm=\"") - 1;
if ((algo_string_len > 0) && (algo_string_len <= sizeof(algo) - 1)) {
strncpy(algo, strstr(array[i], "algorithm=") + strlen("algorithm=") + 1, algo_string_len);
algo[algo_string_len] = '\0';
} else {
int j;
for (j = 0; j < ind; j++)
if (array[j] != NULL)
free(array[j]);
hydra_report(stderr, "Error: DIGEST-MD5 algorithm from server could not be extracted\n");
result = NULL;
return;
}
} else {
strncpy(algo, strstr(array[i], "algorithm=") + strlen("algorithm="), sizeof(algo) - 1);
algo[sizeof(algo) - 1] = '\0';
}
if ((strstr(algo, "MD5") == NULL) && (strstr(algo, "md5") == NULL)) {
int j;
for (j = 0; j < ind; j++)
if (array[j] != NULL)
free(array[j]);
hydra_report(stderr, "Error: DIGEST-MD5 algorithm not based on md5, based on %s\n", algo);
result = NULL;
return;
}
}
free(array[i]);
array[i] = NULL;
}
if (!strlen(algo)) {
//assuming by default algo is MD5
memset(algo, 0, sizeof(algo));
strcpy(algo, "MD5");
}
//xmpp case, some xmpp server is not sending the realm so we have to set it up
if ((strlen(realm) == 0) && (strstr(type, "xmpp") != NULL))
snprintf(realm, sizeof(realm), "%s", miscptr);
//compute ha1
//support for algo = MD5
snprintf(buffer, 500, "%s:%s:%s", preplogin, realm, preppasswd);
MD5_Init(&md5c);
MD5_Update(&md5c, buffer, strlen(buffer));
MD5_Final(response, &md5c);
//for MD5-sess
if (strstr(algo, "5-sess") != NULL) {
buffer[0] = 0; //memset(buffer, 0, sizeof(buffer)); => buffer is char*!
/* per RFC 2617 Errata ID 1649 */
if ((strstr(type, "proxy") != NULL) || (strstr(type, "GET") != NULL) || (strstr(type, "HEAD") != NULL)) {
memset(buffer3, 0, sizeof(buffer3));
pbuffer = buffer3;
for (i = 0; i < MD5_DIGEST_LENGTH; i++) {
sprintf(pbuffer, "%02x", response[i]);
pbuffer += 2;
}
sprintf(buffer, "%s:%s:%s", buffer3, nonce, "hydra");
} else {
memcpy(buffer, response, sizeof(response));
sprintf(buffer + sizeof(response), ":%s:%s", nonce, "hydra");
}
MD5_Init(&md5c);
MD5_Update(&md5c, buffer, strlen(buffer));
MD5_Final(response, &md5c);
}
memset(buffer3, 0, sizeof(buffer3));
pbuffer = buffer3;
for (i = 0; i < MD5_DIGEST_LENGTH; i++) {
sprintf(pbuffer, "%02x", response[i]);
pbuffer += 2;
}
//compute ha2
//proxy case
if (strstr(type, "proxy") != NULL)
sprintf(buffer, "%s:%s", "HEAD", miscptr);
else
//http case
if ((strstr(type, "GET") != NULL) || (strstr(type, "HEAD") != NULL))
sprintf(buffer, "%s:%s", type, miscptr);
else
//sip case
if (strstr(type, "sip") != NULL)
sprintf(buffer, "REGISTER:%s:%s", type, miscptr);
else
//others
if (strstr(type, "rtsp") != NULL)
sprintf(buffer, "DESCRIBE:%s://%s:%i", type, webtarget, port);
else
//others
sprintf(buffer, "AUTHENTICATE:%s/%s", type, realm);
MD5_Init(&md5c);
MD5_Update(&md5c, buffer, strlen(buffer));
MD5_Final(response, &md5c);
pbuffer = buffer2;
for (i = 0; i < MD5_DIGEST_LENGTH; i++) {
sprintf(pbuffer, "%02x", response[i]);
pbuffer += 2;
}
//compute response
if (!auth_find)
snprintf(buffer, 500, "%s:%s", nonce, buffer2);
else
snprintf(buffer, 500, "%s:%s:%s:%s:%s", nonce, "00000001", "hydra", "auth", buffer2);
MD5_Init(&md5c);
MD5_Update(&md5c, buffer3, strlen(buffer3));
MD5_Update(&md5c, ":", 1);
MD5_Update(&md5c, buffer, strlen(buffer));
MD5_Final(response, &md5c);
pbuffer = buffer;
for (i = 0; i < MD5_DIGEST_LENGTH; i++) {
sprintf(pbuffer, "%02x", response[i]);
pbuffer += 2;
}
//create the auth response
if (strstr(type, "proxy") != NULL) {
snprintf(result, 500,
"HEAD %s HTTP/1.0\r\n%sProxy-Authorization: Digest username=\"%s\", realm=\"%s\", response=\"%s\", nonce=\"%s\", cnonce=\"hydra\", nc=00000001, algorithm=%s, qop=auth, uri=\"%s\"\r\nUser-Agent: Mozilla/4.0 (Hydra)\r\nConnection: keep-alive\r\n%s\r\n",
miscptr, webtarget, preplogin, realm, buffer, nonce, algo, miscptr, header);
} else {
if ((strstr(type, "imap") != NULL) || (strstr(type, "pop") != NULL) || (strstr(type, "smtp") != NULL) ||
(strstr(type, "ldap") != NULL) || (strstr(type, "xmpp") != NULL) || (strstr(type, "nntp") != NULL)) {
snprintf(result, 500, "username=\"%s\",realm=\"%s\",nonce=\"%s\",cnonce=\"hydra\",nc=00000001,algorithm=%s,qop=\"auth\",digest-uri=\"%s/%s\",response=%s", preplogin, realm,
nonce, algo, type, realm, buffer);
} else {
if (strstr(type, "sip") != NULL) {
snprintf(result, 500, "username=\"%s\",realm=\"%s\",nonce=\"%s\",uri=\"%s:%s\",response=%s", preplogin, realm, nonce, type, realm, buffer);
} else{
if (strstr(type, "rtsp") != NULL) {
snprintf(result, 500, "username=\"%s\", realm=\"%s\", nonce=\"%s\", uri=\"%s://%s:%i\", response=\"%s\"\r\n", preplogin, realm, nonce, type, webtarget, port, buffer);
} else {
if (use_proxy == 1 && proxy_authentication != NULL)
snprintf(result, 500,
"%s http://%s:%d%s HTTP/1.0\r\nHost: %s\r\nAuthorization: Digest username=\"%s\", realm=\"%s\", response=\"%s\", nonce=\"%s\", cnonce=\"hydra\", nc=00000001, algorithm=%s, qop=auth, uri=\"%s\"\r\nProxy-Authorization: Basic %s\r\nUser-Agent: Mozilla/4.0 (Hydra)\r\nConnection: keep-alive\r\n%s\r\n",
type, webtarget, webport, miscptr, webtarget, preplogin, realm, buffer, nonce, algo, miscptr, proxy_authentication, header);
else {
if (use_proxy == 1)
snprintf(result, 500,
"%s http://%s:%d%s HTTP/1.0\r\nHost: %s\r\nAuthorization: Digest username=\"%s\", realm=\"%s\", response=\"%s\", nonce=\"%s\", cnonce=\"hydra\", nc=00000001, algorithm=%s, qop=auth, uri=\"%s\"\r\nUser-Agent: Mozilla/4.0 (Hydra)\r\nConnection: keep-alive\r\n%s\r\n",
type, webtarget, webport, miscptr, webtarget, preplogin, realm, buffer, nonce, algo, miscptr, header);
else
snprintf(result, 500,
"%s %s HTTP/1.0\r\nHost: %s\r\nAuthorization: Digest username=\"%s\", realm=\"%s\", response=\"%s\", nonce=\"%s\", cnonce=\"hydra\", nc=00000001, algorithm=%s, qop=auth, uri=\"%s\"\r\nUser-Agent: Mozilla/4.0 (Hydra)\r\nConnection: keep-alive\r\n%s\r\n",
type, miscptr, webtarget, preplogin, realm, buffer, nonce, algo, miscptr, header);
}
}
}
}
}
free(preplogin);
free(preppasswd);
}
int start_imap(int s, char *ip, int port, unsigned char options, char *miscptr, FILE * fp) {
char *empty = "";
char *login, *pass, buffer[500], buffer2[500];
if (strlen(login = hydra_get_next_login()) == 0)
login = empty;
if (strlen(pass = hydra_get_next_password()) == 0)
pass = empty;
while (hydra_data_ready(s)) {
if ((buf = hydra_receive_line(s)) == NULL)
return (1);
free(buf);
}
switch (imap_auth_mechanism) {
case AUTH_LOGIN:
sprintf(buffer, "%d AUTHENTICATE LOGIN\r\n", counter);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
if (strstr(buf, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL) {
hydra_report(stderr, "[ERROR] IMAP LOGIN AUTH : %s\n", buf);
free(buf);
return 3;
}
free(buf);
strcpy(buffer2, login);
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
sprintf(buffer, "%.250s\r\n", buffer2);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
if (strstr(buf, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL) {
hydra_report(stderr, "[ERROR] IMAP LOGIN AUTH : %s\n", buf);
free(buf);
return 3;
}
free(buf);
strcpy(buffer2, pass);
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
sprintf(buffer, "%.250s\r\n", buffer2);
break;
case AUTH_PLAIN:
sprintf(buffer, "%d AUTHENTICATE PLAIN\r\n", counter);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
if (strstr(buf, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL) {
hydra_report(stderr, "[ERROR] IMAP PLAIN AUTH : %s\n", buf);
free(buf);
return 3;
}
free(buf);
memset(buffer, 0, sizeof(buffer));
sasl_plain(buffer, login, pass);
sprintf(buffer, "%.250s\r\n", buffer);
break;
#ifdef LIBOPENSSLNEW
case AUTH_CRAMMD5:
case AUTH_CRAMSHA1:
case AUTH_CRAMSHA256:{
int rc = 0;
char *preplogin;
rc = sasl_saslprep(login, SASL_ALLOW_UNASSIGNED, &preplogin);
if (rc) {
return 3;
}
switch (imap_auth_mechanism) {
case AUTH_CRAMMD5:
sprintf(buffer, "%d AUTHENTICATE CRAM-MD5\r\n", counter);
break;
case AUTH_CRAMSHA1:
sprintf(buffer, "%d AUTHENTICATE CRAM-SHA1\r\n", counter);
break;
case AUTH_CRAMSHA256:
sprintf(buffer, "%d AUTHENTICATE CRAM-SHA256\r\n", counter);
break;
}
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
//get the one-time BASE64 encoded challenge
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
if (strstr(buf, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL || strstr(buf, "BYE") != NULL) {
switch (imap_auth_mechanism) {
case AUTH_CRAMMD5:
hydra_report(stderr, "[ERROR] IMAP CRAM-MD5 AUTH : %s\n", buf);
break;
case AUTH_CRAMSHA1:
hydra_report(stderr, "[ERROR] IMAP CRAM-SHA1 AUTH : %s\n", buf);
break;
case AUTH_CRAMSHA256:
hydra_report(stderr, "[ERROR] IMAP CRAM-SHA256 AUTH : %s\n", buf);
break;
}
free(buf);
return 3;
}
memset(buffer, 0, sizeof(buffer));
from64tobits((char *) buffer, buf + 2);
free(buf);
memset(buffer2, 0, sizeof(buffer2));
switch (imap_auth_mechanism) {
case AUTH_CRAMMD5:{
sasl_cram_md5(buffer2, pass, buffer);
sprintf(buffer, "%s %.250s", preplogin, buffer2);
}
break;
case AUTH_CRAMSHA1:{
sasl_cram_sha1(buffer2, pass, buffer);
sprintf(buffer, "%s %.250s", preplogin, buffer2);
}
break;
case AUTH_CRAMSHA256:{
sasl_cram_sha256(buffer2, pass, buffer);
sprintf(buffer, "%s %.250s", preplogin, buffer2);
}
break;
}
hydra_tobase64((unsigned char *) buffer, strlen(buffer), sizeof(buffer));
sprintf(buffer, "%.250s\r\n", buffer);
free(preplogin);
}
break;
case AUTH_DIGESTMD5:{
sprintf(buffer, "%d AUTHENTICATE DIGEST-MD5\r\n", counter);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0)
return 1;
//receive
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
if (strstr(buf, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL || strstr(buf, "BYE") != NULL) {
hydra_report(stderr, "[ERROR] IMAP DIGEST-MD5 AUTH : %s\n", buf);
free(buf);
return 3;
}
memset(buffer, 0, sizeof(buffer));
from64tobits((char *) buffer, buf);
free(buf);
if (verbose)
hydra_report(stderr, "DEBUG S: %s\n", buffer);
sasl_digest_md5(buffer2, login, pass, buffer, miscptr, "imap", NULL, 0, NULL);
if (buffer2 == NULL)
return 3;
if (verbose)
hydra_report(stderr, "DEBUG C: %s\n", buffer2);
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
sprintf(buffer, "%s\r\n", buffer2);
}
break;
case AUTH_SCRAMSHA1:{
char clientfirstmessagebare[200];
char serverfirstmessage[200];
char *preplogin;
int rc = sasl_saslprep(login, SASL_ALLOW_UNASSIGNED, &preplogin);
if (rc) {
return 3;
}
sprintf(buffer, "%d AUTHENTICATE SCRAM-SHA-1\r\n", counter);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
if (strstr(buf, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL || strstr(buf, "BYE") != NULL) {
hydra_report(stderr, "[ERROR] IMAP SCRAM-SHA1 AUTH : %s\n", buf);
free(buf);
return 3;
}
free(buf);
snprintf(clientfirstmessagebare, sizeof(clientfirstmessagebare), "n=%s,r=hydra", preplogin);
free(preplogin);
memset(buffer2, 0, sizeof(buffer2));
sprintf(buffer2, "n,,%.200s", clientfirstmessagebare);
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
snprintf(buffer, sizeof(buffer), "%s\r\n", buffer2);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
buf = hydra_receive_line(s);
if (buf == NULL)
return 1;
if (strstr(buf, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL || strstr(buf, "BYE") != NULL) {
if (verbose || debug) hydra_report(stderr, "[ERROR] Not a valid server challenge\n");
free(buf);
return 1;
} else {
/* recover server challenge */
memset(buffer, 0, sizeof(buffer));
//+ cj1oeWRyYU9VNVZqcHQ5RjNqcmVXRVFWTCxzPWhGbTNnRGw0akdidzJVVHosaT00MDk2
from64tobits((char *) buffer, buf + 2);
free(buf);
strncpy(serverfirstmessage, buffer, sizeof(serverfirstmessage) - 1);
serverfirstmessage[sizeof(serverfirstmessage) - 1] = '\0';
memset(buffer2, 0, sizeof(buffer2));
sasl_scram_sha1(buffer2, pass, clientfirstmessagebare, serverfirstmessage);
if (buffer2 == NULL) {
hydra_report(stderr, "[ERROR] Can't compute client response\n");
return 1;
}
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
sprintf(buffer, "%s\r\n", buffer2);
}
}
break;
#endif
case AUTH_NTLM:{
unsigned char buf1[4096];
unsigned char buf2[4096];
//Send auth request
sprintf(buffer, "%d AUTHENTICATE NTLM\r\n", counter);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0)
return 1;
//receive
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
if (strstr(buf, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL || strstr(buf, "BYE") != NULL) {
hydra_report(stderr, "[ERROR] IMAP NTLM AUTH : %s\n", buf);
free(buf);
return 3;
}
free(buf);
//send auth and receive challenge
//send auth request: lst the server send it's own hostname and domainname
buildAuthRequest((tSmbNtlmAuthRequest *) buf2, 0, NULL, NULL);
to64frombits(buf1, buf2, SmbLength((tSmbNtlmAuthRequest *) buf2));
sprintf(buffer, "%s\r\n", buf1);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0)
return 1;
if ((buf = hydra_receive_line(s)) == NULL)
return (1);
//recover challenge
from64tobits((char *) buf1, buf + 2);
free(buf);
//Send response
buildAuthResponse((tSmbNtlmAuthChallenge *) buf1, (tSmbNtlmAuthResponse *) buf2, 0, login, pass, NULL, NULL);
to64frombits(buf1, buf2, SmbLength((tSmbNtlmAuthResponse *) buf2));
sprintf(buffer, "%s\r\n", buf1);
}
break;
default:
//clear authentication
sprintf(buffer, "%d LOGIN \"%.100s\" \"%.100s\"\r\n", counter, login, pass);
}
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return (1);
if (strstr(buf, " NO ") != NULL || strstr(buf, "failed") != NULL || strstr(buf, " BAD ") != NULL || strstr(buf, "BYE") != NULL) {
if (verbose)
hydra_report(stderr, "[ERROR] %s\n", buf);
free(buf);
hydra_completed_pair();
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
return 3;
if (counter == 4)
return 1;
return (2);
}
free(buf);
hydra_report_found_host(port, ip, "imap", fp);
hydra_completed_pair_found();
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
return 3;
return 1;
}
char *nntp_read_server_capacity(int sock) {
char *ptr = NULL;
int resp = 0;
char *buf = NULL;
do {
if (buf != NULL)
free(buf);
ptr = buf = hydra_receive_line(sock);
if (buf != NULL) {
if (isdigit((int) buf[0]) && buf[3] == ' ')
resp = 1;
else {
if (buf[strlen(buf) - 1] == '\n')
buf[strlen(buf) - 1] = 0;
if (buf[strlen(buf) - 1] == '\r')
buf[strlen(buf) - 1] = 0;
#ifdef NO_RINDEX
if ((ptr = strrchr(buf, '\n')) != NULL) {
#else
if ((ptr = rindex(buf, '\n')) != NULL) {
#endif
ptr++;
if (isdigit((int) *ptr) && *(ptr + 3) == ' ')
resp = 1;
}
}
}
} while (buf != NULL && resp == 0);
return buf;
}
int start_nntp(int s, char *ip, int port, unsigned char options, char *miscptr, FILE * fp) {
char *empty = "\"\"";
char *login, *pass, buffer[300], buffer2[500];
int i = 1;
if (strlen(login = hydra_get_next_login()) == 0)
login = empty;
if (strlen(pass = hydra_get_next_password()) == 0)
pass = empty;
while (i > 0 && hydra_data_ready(s) > 0)
i = hydra_recv(s, buffer, 300);
switch (nntp_auth_mechanism) {
case AUTH_LOGIN:
sprintf(buffer, "AUTHINFO SASL LOGIN\r\n");
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
if (buf == NULL || strstr(buf, "383") == NULL) {
hydra_report(stderr, "[ERROR] NNTP LOGIN AUTH : %s\n", buf);
free(buf);
return 3;
}
free(buf);
strcpy(buffer2, login);
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
sprintf(buffer, "%.250s\r\n", buffer2);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
if (buf == NULL || strstr(buf, "383") == NULL) {
hydra_report(stderr, "[ERROR] NNTP LOGIN AUTH : %s\n", buf);
free(buf);
return 3;
}
free(buf);
strcpy(buffer2, pass);
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
sprintf(buffer, "%.250s\r\n", buffer2);
break;
case AUTH_PLAIN:
sprintf(buffer, "AUTHINFO SASL PLAIN\r\n");
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
if (buf == NULL || strstr(buf, "383") == NULL) {
hydra_report(stderr, "[ERROR] NNTP PLAIN AUTH : %s\n", buf);
free(buf);
return 3;
}
free(buf);
memset(buffer, 0, sizeof(buffer));
sasl_plain(buffer, login, pass);
sprintf(buffer, "%.250s\r\n", buffer);
break;
#ifdef LIBOPENSSL
case AUTH_CRAMMD5:{
int rc = 0;
char *preplogin;
rc = sasl_saslprep(login, SASL_ALLOW_UNASSIGNED, &preplogin);
if (rc) {
return 3;
}
sprintf(buffer, "AUTHINFO SASL CRAM-MD5\r\n");
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
//get the one-time BASE64 encoded challenge
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
if (buf == NULL || strstr(buf, "383") == NULL) {
hydra_report(stderr, "[ERROR] NNTP CRAM-MD5 AUTH : %s\n", buf);
free(buf);
return 3;
}
memset(buffer, 0, sizeof(buffer));
from64tobits((char *) buffer, buf + 4);
free(buf);
memset(buffer2, 0, sizeof(buffer2));
sasl_cram_md5(buffer2, pass, buffer);
sprintf(buffer, "%s %.250s", preplogin, buffer2);
hydra_tobase64((unsigned char *) buffer, strlen(buffer), sizeof(buffer));
sprintf(buffer, "%.250s\r\n", buffer);
free(preplogin);
}
break;
case AUTH_DIGESTMD5:{
sprintf(buffer, "AUTHINFO SASL DIGEST-MD5\r\n");
if (hydra_send(s, buffer, strlen(buffer), 0) < 0)
return 1;
//receive
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
if (buf == NULL || strstr(buf, "383") == NULL) {
hydra_report(stderr, "[ERROR] NNTP DIGEST-MD5 AUTH : %s\n", buf);
free(buf);
return 3;
}
memset(buffer, 0, sizeof(buffer));
from64tobits((char *) buffer, buf + 4);
free(buf);
if (verbose)
hydra_report(stderr, "DEBUG S: %s\n", buffer);
sasl_digest_md5(buffer2, login, pass, buffer, miscptr, "nntp", NULL, 0, NULL);
if (buffer2 == NULL)
return 3;
if (verbose)
hydra_report(stderr, "DEBUG C: %s\n", buffer2);
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
sprintf(buffer, "%s\r\n", buffer2);
}
break;
#endif
case AUTH_NTLM:{
unsigned char buf1[4096];
unsigned char buf2[4096];
//send auth and receive challenge
buildAuthRequest((tSmbNtlmAuthRequest *) buf2, 0, NULL, NULL);
to64frombits(buf1, buf2, SmbLength((tSmbNtlmAuthRequest *) buf2));
sprintf(buffer, "AUTHINFO SASL NTLM %s\r\n", (char*)buf1);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
if ((buf = hydra_receive_line(s)) == NULL)
return 1;
if (buf == NULL || strstr(buf, "383") == NULL) {
hydra_report(stderr, "[ERROR] NNTP NTLM AUTH : %s\n", buf);
free(buf);
return 3;
}
//recover challenge
from64tobits((char *) buf1, buf + 4);
free(buf);
buildAuthResponse((tSmbNtlmAuthChallenge *) buf1, (tSmbNtlmAuthResponse *) buf2, 0, login, pass, NULL, NULL);
to64frombits(buf1, buf2, SmbLength((tSmbNtlmAuthResponse *) buf2));
sprintf(buffer, "%s\r\n", (char*)buf1);
}
break;
default:{
sprintf(buffer, "AUTHINFO USER %.250s\r\n", login);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
buf = hydra_receive_line(s);
if (buf == NULL)
return 1;
if (buf[0] != '3') {
if (verbose || debug) hydra_report(stderr, "[ERROR] Not an NNTP protocol or service shutdown: %s\n", buf);
free(buf);
return (3);
}
free(buf);
sprintf(buffer, "AUTHINFO PASS %.250s\r\n", pass);
}
break;
}
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
buf = hydra_receive_line(s);
if (buf == NULL)
return 1;
if (buf[0] == '2') {
hydra_report_found_host(port, ip, "nntp", fp);
hydra_completed_pair_found();
free(buf);
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
return 3;
return 1;
}
free(buf);
hydra_completed_pair();
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
return 3;
return 2;
}
int start_xmpp(int s, char *ip, int port, unsigned char options, char *miscptr, FILE * fp) {
char *empty = "\"\"";
char *login, *pass, buffer[500], buffer2[500];
char *AUTH_STR = "<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='";
char *AUTH_STR_END = "'/>";
char *CHALLENGE_STR = "<challenge xmlns='urn:ietf:params:xml:ns:xmpp-sasl'>";
char *CHALLENGE_STR2 = "<challenge xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\">";
char *CHALLENGE_END_STR = "</challenge>";
char *RESPONSE_STR = "<response xmlns='urn:ietf:params:xml:ns:xmpp-sasl'>";
char *RESPONSE_END_STR = "</response>";
if (strlen(login = hydra_get_next_login()) == 0)
login = empty;
if (strlen(pass = hydra_get_next_password()) == 0)
pass = empty;
switch (xmpp_auth_mechanism) {
case AUTH_SCRAMSHA1:
sprintf(buffer, "%s%s%s", AUTH_STR, "SCRAM-SHA-1", AUTH_STR_END);
break;
case AUTH_CRAMMD5:
sprintf(buffer, "%s%s%s", AUTH_STR, "CRAM-MD5", AUTH_STR_END);
break;
case AUTH_DIGESTMD5:
sprintf(buffer, "%s%s%s", AUTH_STR, "DIGEST-MD5", AUTH_STR_END);
break;
case AUTH_PLAIN:
sprintf(buffer, "%s%s%s", AUTH_STR, "PLAIN", AUTH_STR_END);
break;
default:
sprintf(buffer, "%s%s%s", AUTH_STR, "LOGIN", AUTH_STR_END);
break;
}
hydra_send(s, buffer, strlen(buffer), 0);
usleep(300000);
buf = hydra_receive_line(s);
if (verbose)
hydra_report(stderr, "DEBUG S: %s\n", buf);
if ((strstr(buf, CHALLENGE_STR) != NULL) || (strstr(buf, CHALLENGE_STR2) != NULL)) {
/*
the challenge string is sent depending of the
auth chosen it's the case for login auth
*/
char *ptr = strstr(buf, CHALLENGE_STR);
if (!ptr)
ptr = strstr(buf, CHALLENGE_STR2);
char *ptr_end = strstr(ptr, CHALLENGE_END_STR);
int chglen = ptr_end - ptr - strlen(CHALLENGE_STR);
if ((chglen > 0) && (chglen < sizeof(buffer2))) {
strncpy(buffer2, ptr + strlen(CHALLENGE_STR), chglen);
buffer2[chglen] = '\0';
memset(buffer, 0, sizeof(buffer));
from64tobits((char *) buffer, buffer2);
if (verbose)
hydra_report(stderr, "DEBUG S: %s\n", buffer);
}
switch (xmpp_auth_mechanism) {
case AUTH_LOGIN:{
if (strstr(buffer, "sername") != NULL) {
strncpy(buffer2, login, sizeof(buffer2) - 1);
buffer2[sizeof(buffer2) - 1] = '\0';
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
sprintf(buffer, "%s%.250s%s", RESPONSE_STR, buffer2, RESPONSE_END_STR);
if (verbose)
hydra_report(stderr, "DEBUG C: %s\n", buffer);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
free(buf);
return 1;
}
buf = hydra_receive_line(s);
if (buf == NULL)
return 1;
/* server now would ask for the password */
if ((strstr(buf, CHALLENGE_STR) != NULL) || (strstr(buf, CHALLENGE_STR2) != NULL)) {
char *ptr = strstr(buf, CHALLENGE_STR);
if (!ptr)
ptr = strstr(buf, CHALLENGE_STR2);
char *ptr_end = strstr(ptr, CHALLENGE_END_STR);
int chglen = ptr_end - ptr - strlen(CHALLENGE_STR);
if ((chglen > 0) && (chglen < sizeof(buffer2))) {
strncpy(buffer2, ptr + strlen(CHALLENGE_STR), chglen);
buffer2[chglen] = '\0';
memset(buffer, 0, sizeof(buffer));
from64tobits((char *) buffer, buffer2);
if (strstr(buffer, "assword") != NULL) {
strncpy(buffer2, pass, sizeof(buffer2) - 1);
buffer2[sizeof(buffer2) - 1] = '\0';
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
sprintf(buffer, "%s%.250s%s", RESPONSE_STR, buffer2, RESPONSE_END_STR);
}
} else {
hydra_report(stderr, "[ERROR] xmpp could not extract challenge from server\n");
free(buf);
return 1;
}
free(buf);
}
}
}
break;
#ifdef LIBOPENSSL
case AUTH_PLAIN:{
memset(buffer2, 0, sizeof(buffer));
sasl_plain(buffer2, login, pass);
sprintf(buffer, "%s%.250s%s", RESPONSE_STR, buffer2, RESPONSE_END_STR);
if (verbose)
hydra_report(stderr, "DEBUG C: %s\n", buffer);
}
break;
case AUTH_CRAMMD5:{
int rc = 0;
char *preplogin;
memset(buffer2, 0, sizeof(buffer2));
sasl_cram_md5(buffer2, pass, buffer);
rc = sasl_saslprep(login, SASL_ALLOW_UNASSIGNED, &preplogin);
if (rc) {
return 3;
}
sprintf(buffer, "%.200s %.250s", preplogin, buffer2);
if (verbose)
hydra_report(stderr, "DEBUG C: %s\n", buffer);
hydra_tobase64((unsigned char *) buffer, strlen(buffer), sizeof(buffer));
sprintf(buffer2, "%s%.250s%s", RESPONSE_STR, buffer, RESPONSE_END_STR);
strncpy(buffer, buffer2, sizeof(buffer) - 1);
buffer[sizeof(buffer) - 1] = '\0';
free(preplogin);
}
break;
case AUTH_DIGESTMD5:{
memset(buffer2, 0, sizeof(buffer2));
sasl_digest_md5(buffer2, login, pass, buffer, domain, "xmpp", NULL, 0, NULL);
if (buffer2 == NULL)
return 3;
if (verbose)
hydra_report(stderr, "DEBUG C: %s\n", buffer2);
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
snprintf(buffer, sizeof(buffer), "%s%s%s", RESPONSE_STR, buffer2, RESPONSE_END_STR);
}
break;
case AUTH_SCRAMSHA1:{
/*client-first-message */
char clientfirstmessagebare[200];
char *preplogin;
int rc = sasl_saslprep(login, SASL_ALLOW_UNASSIGNED, &preplogin);
if (rc) {
return 3;
}
snprintf(clientfirstmessagebare, sizeof(clientfirstmessagebare), "n=%s,r=hydra", preplogin);
free(preplogin);
sprintf(buffer2, "n,,%.200s", clientfirstmessagebare);
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
snprintf(buffer, sizeof(buffer), "%s%s%s", RESPONSE_STR, buffer2, RESPONSE_END_STR);
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
buf = hydra_receive_line(s);
if (buf == NULL)
return 1;
if ((strstr(buf, CHALLENGE_STR) != NULL) || (strstr(buf, CHALLENGE_STR2) != NULL)) {
char serverfirstmessage[200];
char *ptr = strstr(buf, CHALLENGE_STR);
if (!ptr)
ptr = strstr(buf, CHALLENGE_STR2);
char *ptr_end = strstr(ptr, CHALLENGE_END_STR);
int chglen = ptr_end - ptr - strlen(CHALLENGE_STR);
if ((chglen > 0) && (chglen < sizeof(buffer2))) {
strncpy(buffer2, ptr + strlen(CHALLENGE_STR), chglen);
buffer2[chglen] = '\0';
} else {
hydra_report(stderr, "[ERROR] xmpp could not extract challenge from server\n");
free(buf);
return 1;
}
/*server-first-message */
memset(buffer, 0, sizeof(buffer));
from64tobits((char *) buffer, buffer2);
strncpy(serverfirstmessage, buffer, sizeof(serverfirstmessage) - 1);
serverfirstmessage[sizeof(serverfirstmessage) - 1] = '\0';
memset(buffer2, 0, sizeof(buffer2));
sasl_scram_sha1(buffer2, pass, clientfirstmessagebare, serverfirstmessage);
if (buffer2 == NULL) {
hydra_report(stderr, "[ERROR] Can't compute client response\n");
free(buf);
return 1;
}
hydra_tobase64((unsigned char *) buffer2, strlen(buffer2), sizeof(buffer2));
snprintf(buffer, sizeof(buffer), "%s%s%s", RESPONSE_STR, buffer2, RESPONSE_END_STR);
} else {
if (verbose || debug)
hydra_report(stderr, "[ERROR] Not a valid server challenge\n");
free(buf);
return 1;
}
free(buf);
}
break;
#endif
}
if (hydra_send(s, buffer, strlen(buffer), 0) < 0) {
return 1;
}
usleep(50000);
buf = hydra_receive_line(s);
if (buf == NULL)
return 1;
//we test the challenge tag as digest-md5 when connected is sending "rspauth" value
//so if we are receiving a second challenge we assume the auth is good
if ((strstr(buf, "<success") != NULL) || (strstr(buf, "<challenge ") != NULL)) {
hydra_report_found_host(port, ip, "xmpp", fp);
hydra_completed_pair_found();
free(buf);
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
return 3;
return 1;
}
if (verbose)
hydra_report(stderr, "[ERROR] %s\n", buf);
free(buf);
hydra_completed_pair();
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
return 3;
return 2;
}
if (strstr(buf, "<failure")) {
hydra_report(stderr, "[ERROR] Protocol failure, try using another auth method. %s\n", strstr(buf, "<failure"));
}
return 3;
}