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hydra-smb.c
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hydra-smb.c
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#include "hydra-mod.h"
#ifndef LIBOPENSSL
void dummy_smb() {
printf("\n");
}
#else
#include <openssl/md4.h>
#include <openssl/des.h>
#include "hmacmd5.h"
#include "sasl.h"
// FIXME XXX BUG: several malloc()s without return code checking
/*
http://technet.microsoft.com/en-us/library/cc960646.aspx
Most of the new code comes from Medusa smbnt module
------------------------------------------------------------------------
Copyright (C) 2009 Joe Mondloch
JoMo-Kun / jmk@foofus.net
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2,
as published by the Free Software Foundation
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
http://www.gnu.org/licenses/gpl.txt
This program is released under the GPL with the additional exemption
that compiling, linking, and/or using OpenSSL is allowed.
------------------------------------------------------------------------
Based on code from: SMB Auditing Tool
[Copyright (C) Patrik Karlsson 2001]
This code allows Hydra to directly test NTLM hashes against
a Windows. This may be useful for an auditor who has aquired
a sam._ or pwdump file and would like to quickly determine
which are valid entries. This module can also be used to test
SMB passwords against devices that do not allow clear text
LanMan passwords.
The "-m 'METHOD'" option is required for this module. The
following are valid methods: Local, Domain, Hash, Machine,
NTLMV2, NTLM, LMV2, LM (in quotes).
Local == Check local account.
Domain == Check credentials against this hosts primary
domain controller via this host.
Hash == Use a NTLM hash rather than a password.
Machine == Use the Machine's NetBIOS name as the password.
NTLMV2, NTLM, LMV2, LM == set the dialect
Be careful of mass domain account lockout with this. For
example, assume you are checking several accounts against
many domain workstations. If you are not using the 'L'
options and these accounts do not exist locally on the
workstations, each workstation will in turn check their
respective domain controller. This could cause a bunch of
lockouts. Of course, it'd look like the workstations, not
you, were doing it. ;)
**FYI, this code is unable to test accounts on default XP
hosts which are not part of a domain and do not have normal
file sharing enabled. Default XP does not allow shares and
returns STATUS_LOGON_FAILED for both valid and invalid
credentials. XP with simple sharing enabled returns SUCCESS
for both valid and invalid credentials. If anyone knows a
way to test in these configurations...
*/
#define WIN2000_NATIVEMODE 1
#define WIN_NETBIOSMODE 2
#define PLAINTEXT 10
#define ENCRYPTED 11
#ifndef CHAR_BIT
#define CHAR_BIT 8
#endif
#ifndef TIME_T_MIN
#define TIME_T_MIN ((time_t)0 < (time_t) -1 ? (time_t) 0 \
: ~ (time_t) 0 << (sizeof (time_t) * CHAR_BIT - 1))
#endif
#ifndef TIME_T_MAX
#define TIME_T_MAX (~ (time_t) 0 - TIME_T_MIN)
#endif
#define IVAL_NC(buf,pos) (*(uint32_t *)((char *)(buf) + (pos))) /* Non const version of above. */
#define SIVAL(buf,pos,val) IVAL_NC(buf,pos)=((uint32_t)(val))
#define TIME_FIXUP_CONSTANT_INT 11644473600LL
extern char *HYDRA_EXIT;
static unsigned char challenge[8];
static unsigned char workgroup[16];
static unsigned char domain[16];
static unsigned char machine_name[16];
int32_t hashFlag, accntFlag, protoFlag;
int32_t smb_auth_mechanism = AUTH_NTLM;
int32_t security_mode = ENCRYPTED;
static size_t UTF8_UTF16LE(unsigned char *in, int32_t insize, unsigned char *out, int32_t outsize)
{
int32_t i=0,j=0;
uint64_t ch;
if (debug) {
hydra_report(stderr, "[DEBUG] UTF8_UTF16LE in:\n");
hydra_dump_asciihex(in, insize);
}
for (i = 0; i < insize; i++) {
if (in[i] < 128) { // one byte
out[j] = in[i];
out[j+1] = 0;
j=j+2;
} else if ((in[i] >= 0xc0) && (in[i] <= 0xdf)) { // Two bytes
out[j+1] = 0x07 & (in[i] >> 2);
out[j] = (0xc0 & (in[i] << 6)) | (0x3f & in[i+1]);
j=j+2;
i=i+1;
} else if ((in[i] >= 0xe0) && (in[i] <= 0xef)) { // Three bytes
out[j] = (0xc0 & (in[i+1] << 6)) | (0x3f & in[i+2]);
out[j+1] = (0xf0 & (in[i] << 4)) | (0x0f & (in[i+1] >> 2));
j=j+2;
i=i+2;
} else if ((in[i] >= 0xf0) && (in[i] <= 0xf7)) { // Four bytes
ch = ((in[i] & 0x07) << 18) + ((0x3f & in[i+1]) << 12) + ((0x3f & in[i+2]) << 6) + (0x3f & in[i+3])- 0x10000;
out[j] = (ch >> 10) & 0xff;
out[j+1] = 0xd8 | ((ch >> 18) & 0xff);
out[j+2] = ch & 0xff;
out[j+3] = 0xdc | ((ch >> 8) & 0x3 );
j=j+4;
i=i+3;
}
if ( j-2 > outsize) break;
}
if (debug) {
hydra_report(stderr, "[DEBUG] UTF8_UTF16LE out:\n");
hydra_dump_asciihex(out,j);
}
return j;
}
static unsigned char Get7Bits(unsigned char *input, int32_t startBit) {
register uint32_t word;
word = (unsigned) input[startBit / 8] << 8;
word |= (unsigned) input[startBit / 8 + 1];
word >>= 15 - (startBit % 8 + 7);
return word & 0xFE;
}
/* Make the key */
static void MakeKey(unsigned char *key, unsigned char *DES_key) {
DES_key[0] = Get7Bits(key, 0);
DES_key[1] = Get7Bits(key, 7);
DES_key[2] = Get7Bits(key, 14);
DES_key[3] = Get7Bits(key, 21);
DES_key[4] = Get7Bits(key, 28);
DES_key[5] = Get7Bits(key, 35);
DES_key[6] = Get7Bits(key, 42);
DES_key[7] = Get7Bits(key, 49);
DES_set_odd_parity((DES_cblock *) DES_key);
}
/* Do the DesEncryption */
void DesEncrypt(unsigned char *clear, unsigned char *key, unsigned char *cipher) {
DES_cblock DES_key;
DES_key_schedule key_schedule;
MakeKey(key, DES_key);
DES_set_key(&DES_key, &key_schedule);
DES_ecb_encrypt((DES_cblock *) clear, (DES_cblock *) cipher, &key_schedule, 1);
}
/*
HashLM
Function: Create a LM hash from the challenge
Variables:
lmhash = the hash created from this function
pass = users password
challenge = the challenge recieved from the server
*/
int32_t HashLM(unsigned char **lmhash, unsigned char *pass, unsigned char *challenge) {
static unsigned char magic[] = { 0x4b, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25 };
unsigned char password[14 + 1];
unsigned char lm_hash[21];
unsigned char lm_response[24];
int32_t i = 0, j = 0;
unsigned char *p = NULL;
char HexChar;
int32_t HexValue;
memset(password, 0, 14 + 1);
memset(lm_hash, 0, 21);
memset(lm_response, 0, 24);
/* Use LM Hash instead of password */
/* D42E35E1A1E4C22BD32E2170E4857C20:5E20780DD45857A68402938C7629D3B2::: */
if (hashFlag == 1) {
p = pass;
while ((*p != '\0') && (i < 1)) {
if (*p == ':')
i++;
p++;
}
if (*p == '\0') {
hydra_report(stderr, "[ERROR] Reading PwDump file.\n");
return -1;
} else if (*p == 'N') {
if (verbose)
hydra_report(stderr, "[VERBOSE] Found \"NO PASSWORD\" for LM Hash.\n");
/* Generate 16-byte LM hash */
DesEncrypt(magic, &password[0], &lm_hash[0]);
DesEncrypt(magic, &password[7], &lm_hash[8]);
} else {
if (verbose)
hydra_report(stderr, "[VERBOSE] Convert ASCII PwDump LM Hash (%s).\n", p);
for (i = 0; i < 16; i++) {
HexValue = 0x0;
for (j = 0; j < 2; j++) {
HexChar = (char) p[2 * i + j];
if (HexChar > 0x39)
HexChar = HexChar | 0x20; /* convert upper case to lower */
if (!(((HexChar >= 0x30) && (HexChar <= 0x39)) || /* 0 - 9 */
((HexChar >= 0x61) && (HexChar <= 0x66)))) { /* a - f */
hydra_report(stderr, "[ERROR] Invalid char (%c) for hash.\n", HexChar);
HexChar = 0x30;
}
HexChar -= 0x30;
if (HexChar > 0x09) /* HexChar is "a" - "f" */
HexChar -= 0x27;
HexValue = (HexValue << 4) | (char) HexChar;
}
lm_hash[i] = (unsigned char) HexValue;
}
}
} else {
/* Password == Machine Name */
if (hashFlag == 2) {
for (i = 0; i < 16; i++) {
if (machine_name[i] > 0x39)
machine_name[i] = machine_name[i] | 0x20; /* convert upper case to lower */
pass = machine_name;
}
}
/* convert lower case characters to upper case */
strncpy((char *) password, (char *) pass, 14);
for (i = 0; i < 14; i++) {
if ((password[i] >= 0x61) && (password[i] <= 0x7a)) /* a - z */
password[i] -= 0x20;
}
/* Generate 16-byte LM hash */
DesEncrypt(magic, &password[0], &lm_hash[0]);
DesEncrypt(magic, &password[7], &lm_hash[8]);
}
/*
NULL-pad 16-byte LM hash to 21-bytes
Split resultant value into three 7-byte thirds
DES-encrypt challenge using each third as a key
Concatenate three 8-byte resulting values to form 24-byte LM response
*/
DesEncrypt(challenge, &lm_hash[0], &lm_response[0]);
DesEncrypt(challenge, &lm_hash[7], &lm_response[8]);
DesEncrypt(challenge, &lm_hash[14], &lm_response[16]);
memcpy(*lmhash, lm_response, 24);
return 0;
}
/*
MakeNTLM
Function: Create a NTLM hash from the password
*/
int32_t MakeNTLM(unsigned char *ntlmhash, unsigned char *pass) {
MD4_CTX md4Context;
unsigned char hash[16]; /* MD4_SIGNATURE_SIZE = 16 */
unsigned char unicodePassword[256 * 2]; /* MAX_NT_PASSWORD = 256 */
int32_t i = 0, j = 0;
int32_t mdlen;
unsigned char *p = NULL;
char HexChar;
int32_t HexValue;
/* Use NTLM Hash instead of password */
if (hashFlag == 1) {
/* 1000:D42E35E1A1E4C22BD32E2170E4857C20:5E20780DD45857A68402938C7629D3B2::: */
p = pass;
while ((*p != '\0') && (i < 1)) {
if (*p == ':')
i++;
p++;
}
if (*p == '\0') {
hydra_report(stderr, "[ERROR] reading PWDUMP file.\n");
return -1;
}
for (i = 0; i < 16; i++) {
HexValue = 0x0;
for (j = 0; j < 2; j++) {
HexChar = (char) p[2 * i + j];
if (HexChar > 0x39)
HexChar = HexChar | 0x20; /* convert upper case to lower */
if (!(((HexChar >= 0x30) && (HexChar <= 0x39)) || /* 0 - 9 */
((HexChar >= 0x61) && (HexChar <= 0x66)))) { /* a - f */
/*
* fprintf(stderr, "Error invalid char (%c) for hash.\n", HexChar);
* hydra_child_exit(0);
*/
HexChar = 0x30;
}
HexChar -= 0x30;
if (HexChar > 0x09) /* HexChar is "a" - "f" */
HexChar -= 0x27;
HexValue = (HexValue << 4) | (char) HexChar;
}
hash[i] = (unsigned char) HexValue;
}
} else {
/* Password == Machine Name */
if (hashFlag == 2) {
for (i = 0; i < 16; i++) {
if (machine_name[i] > 0x39)
machine_name[i] = machine_name[i] | 0x20; /* convert upper case to lower */
pass = machine_name;
}
}
/* Initialize the Unicode version of the secret (== password). */
/* This implicitly supports most UTF8 characters. */
j = UTF8_UTF16LE(pass, strlen((char *) pass), unicodePassword, sizeof(unicodePassword));
mdlen = j; /* length in bytes */
MD4_Init(&md4Context);
MD4_Update(&md4Context, unicodePassword, mdlen);
MD4_Final(hash, &md4Context); /* Tell MD4 we're done */
}
memcpy(ntlmhash, hash, 16);
return 0;
}
/*
HashLMv2
This function implements the LMv2 response algorithm. The LMv2 response is used to
provide pass-through authentication compatibility with older servers. The response
is based on the NTLM password hash and is exactly 24 bytes.
The below code is based heavily on the following resources:
http://davenport.sourceforge.net/ntlm.html#theLmv2Response
samba-3.0.28a - libsmb/smbencrypt.c
jcifs - packet capture of LMv2-only connection
*/
int32_t HashLMv2(unsigned char **LMv2hash, unsigned char *szLogin, unsigned char *szPassword) {
unsigned char ntlm_hash[16];
unsigned char lmv2_response[24];
unsigned char unicodeUsername[20 * 2];
unsigned char unicodeTarget[256 * 2];
HMACMD5Context ctx;
unsigned char kr_buf[16];
int32_t ret, i;
unsigned char client_challenge[8] = { 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88 };
memset(ntlm_hash, 0, 16);
memset(lmv2_response, 0, 24);
memset(kr_buf, 0, 16);
/* --- HMAC #1 Caculations --- */
/* Calculate and set NTLM password hash */
ret = MakeNTLM((unsigned char *) &ntlm_hash, (unsigned char *) szPassword);
if (ret == -1)
return -1;
/*
The Unicode uppercase username is concatenated with the Unicode authentication target
(the domain or server name specified in the Target Name field of the Type 3 message).
Note that this calculation always uses the Unicode representation, even if OEM encoding
has been negotiated; also note that the username is converted to uppercase, while the
authentication target is case-sensitive and must match the case presented in the Target
Name field.
The HMAC-MD5 message authentication code algorithm (described in RFC 2104) is applied to
this value using the 16-byte NTLM hash as the key. This results in a 16-byte value - the
NTLMv2 hash.
*/
/* Initialize the Unicode version of the username and target. */
/* This implicitly supports 8-bit ISO8859/1 characters. */
/* convert lower case characters to upper case */
bzero(unicodeUsername, sizeof(unicodeUsername));
for (i = 0; i < strlen((char *) szLogin); i++) {
if ((szLogin[i] >= 0x61) && (szLogin[i] <= 0x7a)) /* a - z */
unicodeUsername[i * 2] = (unsigned char) szLogin[i] - 0x20;
else
unicodeUsername[i * 2] = (unsigned char) szLogin[i];
}
bzero(unicodeTarget, sizeof(unicodeTarget));
for (i = 0; i < strlen((char *) workgroup); i++)
unicodeTarget[i * 2] = (unsigned char) workgroup[i];
hmac_md5_init_limK_to_64(ntlm_hash, 16, &ctx);
hmac_md5_update((const unsigned char *) unicodeUsername, 2 * strlen((char *) szLogin), &ctx);
hmac_md5_update((const unsigned char *) unicodeTarget, 2 * strlen((char *) workgroup), &ctx);
hmac_md5_final(kr_buf, &ctx);
/* --- HMAC #2 Calculations --- */
/*
The challenge from the Type 2 message is concatenated with our fixed client nonce. The HMAC-MD5
message authentication code algorithm is applied to this value using the 16-byte NTLMv2 hash
(calculated above) as the key. This results in a 16-byte output value.
*/
hmac_md5_init_limK_to_64(kr_buf, 16, &ctx);
hmac_md5_update((const unsigned char *) challenge, 8, &ctx);
hmac_md5_update(client_challenge, 8, &ctx);
hmac_md5_final(lmv2_response, &ctx);
/* --- 24-byte LMv2 Response Complete --- */
if ((*LMv2hash = malloc(24)) == NULL)
return -1;
memset(*LMv2hash, 0, 24);
memcpy(*LMv2hash, lmv2_response, 16);
memcpy(*LMv2hash + 16, client_challenge, 8);
return 0;
}
/*
HashNTLMv2
This function implements the NTLMv2 response algorithm. Support for this algorithm
was added with Microsoft Windows with NT 4.0 SP4. It should be noted that code doesn't
currently work with Microsoft Vista. While NTLMv2 authentication with Samba and Windows
2003 functions as expected, Vista systems respond with the oh-so-helpful
"INVALID_PARAMETER" error code. LMv2-only authentication appears to work against Vista
in cases where LM and NTLM are refused.
The below code is based heavily on the following two resources:
http://davenport.sourceforge.net/ntlm.html#theNtlmv2Response
samba-3.0.28 - libsmb/smbencrypt.c
NTLMv2 network authentication is required when attempting to authenticated to
a system which has the following policy enforced:
GPO: "Network Security: LAN Manager authentication level"
Setting: "Send NTLMv2 response only\refuse LM & NTLM"
*/
int32_t HashNTLMv2(unsigned char **NTLMv2hash, int32_t *iByteCount, unsigned char *szLogin, unsigned char *szPassword) {
unsigned char ntlm_hash[16];
unsigned char ntlmv2_response[56 + 20 * 2 + 256 * 2];
unsigned char unicodeUsername[20 * 2];
unsigned char unicodeTarget[256 * 2];
HMACMD5Context ctx;
unsigned char kr_buf[16];
int32_t ret, i, iTargetLen;
unsigned char client_challenge[8] = { 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88 };
/*
-- Example NTLMv2 Response Data --
[0] HMAC: (16 bytes)
[16] Header: Blob Signature [01 01 00 00] (4 bytes)
[20] Reserved: [00 00 00 00] (4 bytes)
[24] Time: Little-endian, 64-bit signed value representing the number of
tenths of a microsecond since January 1, 1601. (8 bytes)
[32] Client Nonce: (8 bytes)
[40] Unknown: 00 00 00 00 (4 bytes)
[44] Target Information (from the Type 2 message)
NetBIOS domain/workgroup:
Type: domain 02 00 (2 bytes)
Length: 12 00 (2 bytes)
Name: WORKGROUP [NULL spacing -> 57 00 4f 00 ...] (18 bytes)
End-of-list: 00 00 00 00 (4 bytes)
Termination: 00 00 00 00 (4 bytes)
*/
iTargetLen = 2 * strlen((char *) workgroup);
memset(ntlm_hash, 0, 16);
memset(ntlmv2_response, 0, 56 + 20 * 2 + 256 * 2);
memset(kr_buf, 0, 16);
/* --- HMAC #1 Caculations --- */
/* Calculate and set NTLM password hash */
ret = MakeNTLM((unsigned char *) &ntlm_hash, (unsigned char *) szPassword);
if (ret == -1)
return -1;
/*
The Unicode uppercase username is concatenated with the Unicode authentication target
(the domain or server name specified in the Target Name field of the Type 3 message).
Note that this calculation always uses the Unicode representation, even if OEM encoding
has been negotiated; also note that the username is converted to uppercase, while the
authentication target is case-sensitive and must match the case presented in the Target
Name field.
The HMAC-MD5 message authentication code algorithm (described in RFC 2104) is applied to
this value using the 16-byte NTLM hash as the key. This results in a 16-byte value - the
NTLMv2 hash.
*/
/* Initialize the Unicode version of the username and target. */
/* This implicitly supports 8-bit ISO8859/1 characters. */
/* convert lower case characters to upper case */
bzero(unicodeUsername, sizeof(unicodeUsername));
for (i = 0; i < strlen((char *) szLogin); i++) {
if ((szLogin[i] >= 0x61) && (szLogin[i] <= 0x7a)) /* a - z */
unicodeUsername[i * 2] = (unsigned char) szLogin[i] - 0x20;
else
unicodeUsername[i * 2] = (unsigned char) szLogin[i];
}
bzero(unicodeTarget, sizeof(unicodeTarget));
for (i = 0; i < strlen((char *) workgroup); i++)
unicodeTarget[i * 2] = (unsigned char) workgroup[i];
hmac_md5_init_limK_to_64(ntlm_hash, 16, &ctx);
hmac_md5_update((const unsigned char *) unicodeUsername, 2 * strlen((char *) szLogin), &ctx);
hmac_md5_update((const unsigned char *) unicodeTarget, 2 * strlen((char *) workgroup), &ctx);
hmac_md5_final(kr_buf, &ctx);
/* --- Blob Construction --- */
memset(ntlmv2_response + 16, 1, 2); /* Blob Signature 0x01010000 */
memset(ntlmv2_response + 18, 0, 2);
memset(ntlmv2_response + 20, 0, 4); /* Reserved */
/* Time -- Take a Unix time and convert to an NT TIME structure:
Little-endian, 64-bit signed value representing the number of tenths of a
microsecond since January 1, 1601.
*/
struct timespec ts;
unsigned long long nt;
ts.tv_sec = (time_t) time(NULL);
ts.tv_nsec = 0;
if (ts.tv_sec == 0)
nt = 0;
else if (ts.tv_sec == TIME_T_MAX)
nt = 0x7fffffffffffffffLL;
else if (ts.tv_sec == (time_t) - 1)
nt = (unsigned long) -1;
else {
nt = ts.tv_sec;
nt += TIME_FIXUP_CONSTANT_INT;
nt *= 1000 * 1000 * 10; /* nt is now in the 100ns units */
}
SIVAL(ntlmv2_response + 24, 0, nt & 0xFFFFFFFF);
SIVAL(ntlmv2_response + 24, 4, nt >> 32);
/* End time calculation */
/* Set client challenge - using a non-random value in this case. */
memcpy(ntlmv2_response + 32, client_challenge, 8); /* Client Nonce */
memset(ntlmv2_response + 40, 0, 4); /* Unknown */
/* Target Information Block */
/*
0x0100 Server name
0x0200 Domain name
0x0300 Fully-qualified DNS host name
0x0400 DNS domain name
TODO: Need to rework negotiation code to correctly extract target information
*/
memset(ntlmv2_response + 44, 0x02, 1); /* Type: Domain */
memset(ntlmv2_response + 45, 0x00, 1);
memset(ntlmv2_response + 46, iTargetLen, 1); /* Length */
memset(ntlmv2_response + 47, 0x00, 1);
/* Name of domain or workgroup */
for (i = 0; i < strlen((char *) workgroup); i++)
ntlmv2_response[48 + i * 2] = (unsigned char) workgroup[i];
memset(ntlmv2_response + 48 + iTargetLen, 0, 4); /* End-of-list */
/* --- HMAC #2 Caculations --- */
/*
The challenge from the Type 2 message is concatenated with the blob. The HMAC-MD5 message
authentication code algorithm is applied to this value using the 16-byte NTLMv2 hash
(calculated above) as the key. This results in a 16-byte output value.
*/
hmac_md5_init_limK_to_64(kr_buf, 16, &ctx);
hmac_md5_update(challenge, 8, &ctx);
hmac_md5_update(ntlmv2_response + 16, 48 - 16 + iTargetLen + 4, &ctx);
hmac_md5_final(ntlmv2_response, &ctx);
*iByteCount = 48 + iTargetLen + 4;
if ((*NTLMv2hash = malloc(*iByteCount)) == NULL)
return -1;
memset(*NTLMv2hash, 0, *iByteCount);
memcpy(*NTLMv2hash, ntlmv2_response, *iByteCount);
return 0;
}
/*
HashNTLM
Function: Create a NTLM hash from the challenge
Variables:
ntlmhash = the hash created from this function
pass = users password
challenge = the challenge recieved from the server
*/
int32_t HashNTLM(unsigned char **ntlmhash, unsigned char *pass, unsigned char *challenge, char *miscptr) {
int32_t ret;
unsigned char hash[16]; /* MD4_SIGNATURE_SIZE = 16 */
unsigned char p21[21];
unsigned char ntlm_response[24];
ret = MakeNTLM((unsigned char *) &hash, (unsigned char *) pass);
if (ret == -1)
hydra_child_exit(0);
memset(p21, '\0', 21);
memcpy(p21, hash, 16);
DesEncrypt(challenge, p21 + 0, ntlm_response + 0);
DesEncrypt(challenge, p21 + 7, ntlm_response + 8);
DesEncrypt(challenge, p21 + 14, ntlm_response + 16);
memcpy(*ntlmhash, ntlm_response, 24);
return 0;
}
/*
NBS Session Request
Function: Request a new session from the server
Returns: TRUE on success else FALSE.
*/
int32_t NBSSessionRequest(int32_t s) {
char nb_name[32]; /* netbiosname */
char nb_local[32]; /* netbios localredirector */
unsigned char rqbuf[7] = { 0x81, 0x00, 0x00, 0x44, 0x20, 0x00, 0x20 };
char *buf;
unsigned char rbuf[400];
int32_t k;
/* if we are running in native mode (aka port 445) don't do netbios */
if (protoFlag == WIN2000_NATIVEMODE)
return 0;
/* convert computer name to netbios name */
memset(nb_name, 0, 32);
memset(nb_local, 0, 32);
memcpy(nb_name, "CKFDENECFDEFFCFGEFFCCACACACACACA", 32); /* *SMBSERVER */
memcpy(nb_local, "EIFJEEFCEBCACACACACACACACACACACA", 32); /* HYDRA */
if ((buf = (char *) malloc(100)) == NULL)
return -1;
memset(buf, 0, 100);
memcpy(buf, (char *) rqbuf, 5);
memcpy(buf + 5, nb_name, 32);
memcpy(buf + 37, (char *) rqbuf + 5, 2);
memcpy(buf + 39, nb_local, 32);
memcpy(buf + 71, (char *) rqbuf + 5, 1);
hydra_send(s, buf, 72, 0);
free(buf);
memset(rbuf, 0, 400);
k = hydra_recv(s, (char *) rbuf, sizeof(rbuf));
if (k > 0 && (rbuf[0] == 0x82))
return 0; /* success */
else
return -1; /* failed */
}
/*
SMBNegProt
Function: Negotiate protocol with server ...
Actually a pseudo negotiation since the whole
program counts on NTLM support :)
The challenge is retrieved from the answer
No error checking is performed i.e cross your fingers....
*/
int32_t SMBNegProt(int32_t s) {
unsigned char buf[] = {
0x00, 0x00, 0x00, 0xbe, 0xff, 0x53, 0x4d, 0x42,
0x72, 0x00, 0x00, 0x00, 0x00, 0x08, 0x01, 0xc0,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x7d,
0x00, 0x00, 0x01, 0x00, 0x00, 0x9b, 0x00, 0x02,
0x50, 0x43, 0x20, 0x4e, 0x45, 0x54, 0x57, 0x4f,
0x52, 0x4b, 0x20, 0x50, 0x52, 0x4f, 0x47, 0x52,
0x41, 0x4d, 0x20, 0x31, 0x2e, 0x30, 0x00, 0x02,
0x4d, 0x49, 0x43, 0x52, 0x4f, 0x53, 0x4f, 0x46,
0x54, 0x20, 0x4e, 0x45, 0x54, 0x57, 0x4f, 0x52,
0x4b, 0x53, 0x20, 0x31, 0x2e, 0x30, 0x33, 0x00,
0x02, 0x4d, 0x49, 0x43, 0x52, 0x4f, 0x53, 0x4f,
0x46, 0x54, 0x20, 0x4e, 0x45, 0x54, 0x57, 0x4f,
0x52, 0x4b, 0x53, 0x20, 0x33, 0x2e, 0x30, 0x00,
0x02, 0x4c, 0x41, 0x4e, 0x4d, 0x41, 0x4e, 0x31,
0x2e, 0x30, 0x00, 0x02, 0x4c, 0x4d, 0x31, 0x2e,
0x32, 0x58, 0x30, 0x30, 0x32, 0x00, 0x02, 0x44,
0x4f, 0x53, 0x20, 0x4c, 0x41, 0x4e, 0x4d, 0x41,
0x4e, 0x32, 0x2e, 0x31, 0x00, 0x02, 0x4c, 0x41,
0x4e, 0x4d, 0x41, 0x4e, 0x32, 0x2e, 0x31, 0x00,
0x02, 0x53, 0x61, 0x6d, 0x62, 0x61, 0x00, 0x02,
0x4e, 0x54, 0x20, 0x4c, 0x41, 0x4e, 0x4d, 0x41,
0x4e, 0x20, 0x31, 0x2e, 0x30, 0x00, 0x02, 0x4e,
0x54, 0x20, 0x4c, 0x4d, 0x20, 0x30, 0x2e, 0x31,
0x32, 0x00
/*
0x02,
0x50, 0x43, 0x20, 0x4e, 0x45, 0x54, 0x57, 0x4f,
0x52, 0x4b, 0x20, 0x50, 0x52, 0x4f, 0x47, 0x52,
0x41, 0x4d, 0x20, 0x31, 0x2e, 0x30, 0x00, 0x02,
0x4d, 0x49, 0x43, 0x52, 0x4f, 0x53, 0x4f, 0x46,
0x54, 0x20, 0x4e, 0x45, 0x54, 0x57, 0x4f, 0x52,
0x4b, 0x53, 0x20, 0x31, 0x2e, 0x30, 0x33, 0x00,
0x02, 0x4d, 0x49, 0x43, 0x52, 0x4f, 0x53, 0x4f,
0x46, 0x54, 0x20, 0x4e, 0x45, 0x54, 0x57, 0x4f,
0x52, 0x4b, 0x53, 0x20, 0x33, 0x2e, 0x30, 0x00,
0x02, 0x4c, 0x41, 0x4e, 0x4d, 0x41, 0x4e, 0x31,
0x2e, 0x30, 0x00, 0x02, 0x4c, 0x4d, 0x31, 0x2e,
0x32, 0x58, 0x30, 0x30, 0x32, 0x00, 0x02, 0x53,
0x61, 0x6d, 0x62, 0x61, 0x00, 0x02, 0x4e, 0x54,
0x20, 0x4c, 0x41, 0x4e, 0x4d, 0x41, 0x4e, 0x20,
0x31, 0x2e, 0x30, 0x00, 0x02, 0x4e, 0x54, 0x20,
0x4c, 0x4d, 0x20, 0x30, 0x2e, 0x31, 0x32, 0x00
*/
};
unsigned char rbuf[400];
unsigned char sess_key[2];
unsigned char userid[2] = { 0xCD, 0xEF };
int32_t i = 0, j = 0, k;
int32_t iLength = 194;
int32_t iResponseOffset = 73;
memset((char *) rbuf, 0, 400);
/* set session key */
sess_key[1] = getpid() / 100;
sess_key[0] = getpid() - (100 * sess_key[1]);
memcpy(buf + 30, sess_key, 2);
memcpy(buf + 32, userid, 2);
if (smb_auth_mechanism == AUTH_LM) {
if (verbose)
hydra_report(stderr, "[VERBOSE] Setting Negotiate Protocol Response for LM.\n");
buf[3] = 0xA3; // Set message length
buf[37] = 0x80; // Set byte count for dialects
iLength = 167;
iResponseOffset = 65;
}
hydra_send(s, (char *) buf, iLength, 0);
k = hydra_recv(s, (char *) rbuf, sizeof(rbuf));
if (k == 0)
return 3;
/* retrieve the security mode */
/*
[0] Mode: (0) ? (1) USER security mode
[1] Password: (0) PLAINTEXT password (1) ENCRYPTED password. Use challenge/response
[2] Signatures: (0) Security signatures NOT enabled (1) ENABLED
[3] Sig Req: (0) Security signatures NOT required (1) REQUIRED
SAMBA: 0x01 (default)
WinXP: 0x0F (default)
WinXP: 0x07 (Windows 2003 / DC)
*/
switch (rbuf[39]) {
case 0x01:
//real plaintext should be used with LM auth
if (verbose)
hydra_report(stderr, "[VERBOSE] Server requested PLAINTEXT password.\n");
security_mode = PLAINTEXT;
if (hashFlag == 1) {
if (verbose)
hydra_report(stderr, "[VERBOSE] Server requested PLAINTEXT password. HASH password mode not supported for this configuration.\n");
return 3;
}
if (hashFlag == 2) {
if (verbose)
hydra_report(stderr, "[VERBOSE] Server requested PLAINTEXT password. MACHINE password mode not supported for this configuration.\n");
return 3;
}
break;
case 0x03:
if (verbose)
hydra_report(stderr, "[VERBOSE] Server requested ENCRYPTED password without security signatures.\n");
security_mode = ENCRYPTED;
break;
case 0x07:
case 0x0F:
if (verbose)
hydra_report(stderr, "[VERBOSE] Server requested ENCRYPTED password.\n");
security_mode = ENCRYPTED;
break;
default:
if (verbose)
hydra_report(stderr, "[VERBOSE] Unknown security mode request: %2.2X. Proceeding using ENCRYPTED password mode.\n", rbuf[39]);
security_mode = ENCRYPTED;
break;
}
/* Retrieve the challenge */
memcpy(challenge, (char *) rbuf + iResponseOffset, sizeof(challenge));
/* Find the primary domain/workgroup name */
memset(workgroup, 0, 16);
memset(machine_name, 0, 16);
//seems using LM only the domain is returned not the server
//and the domain is not padded with null chars
if (smb_auth_mechanism == AUTH_LM) {
while ((rbuf[iResponseOffset + 8 + i] != 0) && (i < 16)) {
workgroup[i] = rbuf[iResponseOffset + 8 + i];
i++;
}
} else {
while ((rbuf[iResponseOffset + 8 + i * 2] != 0) && (i < 16)) {
workgroup[i] = rbuf[iResponseOffset + 8 + i * 2];
i++;
}
while ((rbuf[iResponseOffset + 8 + (i + j + 1) * 2] != 0) && (j < 16)) {
machine_name[j] = rbuf[iResponseOffset + 8 + (i + j + 1) * 2];
j++;
}
}
if (verbose) {
hydra_report(stderr, "[VERBOSE] Server machine name: %s\n", machine_name);
hydra_report(stderr, "[VERBOSE] Server primary domain: %s\n", workgroup);
}
//success
return 2;
}
/*
SMBSessionSetup
Function: Send username + response to the challenge from
the server.
Returns: TRUE on success else FALSE.
*/
unsigned long SMBSessionSetup(int32_t s, char *szLogin, char *szPassword, char *miscptr) {
unsigned char buf[512];
unsigned char *LMv2hash = NULL;
unsigned char *NTLMv2hash = NULL;
unsigned char *NTLMhash = NULL;
unsigned char *LMhash = NULL;
// unsigned char unicodeLogin[32 * 2];
int32_t j;
char bufReceive[512];
int32_t nReceiveBufferSize = 0;
int32_t ret;
int32_t iByteCount = 0, iOffset = 0;
if (accntFlag == 0) {
strcpy((char *) workgroup, "localhost");
} else if (accntFlag == 2) {
memset(workgroup, 0, 16);
}
//domain flag is not needed here, it will be auto set,
//below it's domain specified on cmd line
else if (accntFlag == 4) {
strncpy((char *) workgroup, (char *) domain, 16);
}
/* NetBIOS Session Service */
unsigned char szNBSS[4] = {
0x00, /* Message Type: Session Message */
0x00, 0x00, 0x85 /* Length -- MUST SET */
};
/* SMB Header */
unsigned char szSMB[32] = {
0xff, 0x53, 0x4d, 0x42, /* Server Component */
0x73, /* SMB Command: Session Setup AndX */
0x00, 0x00, 0x00, 0x00, /* NT Status: STATUS_SUCCESS */
0x08, /* Flags */
0x01, 0xc0, /* Flags2 */ /* add Unicode */
0x00, 0x00, /* Process ID High */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Signature */
0x00, 0x00, /* Reserved */
0x00, 0x00, /* Tree ID */
0x13, 0x37, /* Process ID */
0x00, 0x00, /* User ID */
0x01, 0x00 /* Multiplx ID */
};
memset(buf, 0, 512);
memcpy(buf, szNBSS, 4);
memcpy(buf + 4, szSMB, 32);
if (security_mode == ENCRYPTED) {
/* Session Setup AndX Request */
if (smb_auth_mechanism == AUTH_LM) {
if (verbose)
hydra_report(stderr, "[VERBOSE] Attempting LM password authentication.\n");
unsigned char szSessionRequest[23] = {
0x0a, /* Word Count */
0xff, /* AndXCommand: No further commands */
0x00, /* Reserved */
0x00, 0x00, /* AndXOffset */
0xff, 0xff, /* Max Buffer */
0x02, 0x00, /* Max Mpx Count */
0x3c, 0x7d, /* VC Number */
0x00, 0x00, 0x00, 0x00, /* Session Key */
0x18, 0x00, /* LAN Manager Password Hash Length */
0x00, 0x00, 0x00, 0x00, /* Reserved */
0x49, 0x00 /* Byte Count -- MUST SET */
};
iOffset = 59; /* szNBSS + szSMB + szSessionRequest */
iByteCount = 24; /* Start with length of LM hash */
/* Set Session Setup AndX Request header information */
memcpy(buf + 36, szSessionRequest, 23);
/* Calculate and set LAN Manager password hash */
if ((LMhash = (unsigned char *) malloc(24)) == NULL)
return -1;
memset(LMhash, 0, 24);
ret = HashLM(&LMhash, (unsigned char *) szPassword, (unsigned char *) challenge);
if (ret == -1) {
free(LMhash);
return -1;
}
memcpy(buf + iOffset, LMhash, 24);
free(LMhash);
} else if (smb_auth_mechanism == AUTH_NTLM) {
if (verbose)
hydra_report(stderr, "[VERBOSE] Attempting NTLM password authentication.\n");
unsigned char szSessionRequest[29] = {
0x0d, /* Word Count */
0xff, /* AndXCommand: No further commands */
0x00, /* Reserved */
0x00, 0x00, /* AndXOffset */
0xff, 0xff, /* Max Buffer */
0x02, 0x00, /* Max Mpx Count */
0x3c, 0x7d, /* VC Number */
0x00, 0x00, 0x00, 0x00, /* Session Key */