def test_ntlmv2(self):
print("####### 4.2.4 NTLMv2 Authentication")
ntlm.USE_NTLMv2 = True
serverName = b(
'\x02\x00\x0c\x00\x44\x00\x6f\x00\x6d\x00\x61\x00\x69\x00\x6e\x00\x01\x00\x0c\x00\x53\x00\x65\x00\x72\x00\x76\x00\x65\x00\x72\x00\x00\x00\x00\x00'
)
# Still the aTime won't be set to zero. that must be changed in ntlm.computeResponseNTLM2. Gotta make this more automated
flags = ntlm.NTLMSSP_NEGOTIATE_KEY_EXCH | ntlm.NTLMSSP_NEGOTIATE_56 | ntlm.NTLMSSP_NEGOTIATE_128 | \
ntlm.NTLMSSP_NEGOTIATE_VERSION | ntlm.NTLMSSP_NEGOTIATE_TARGET_INFO | \
ntlm.NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY | ntlm.NTLMSSP_TARGET_TYPE_SERVER | \
ntlm.NTLMSSP_NEGOTIATE_ALWAYS_SIGN | ntlm.NTLMSSP_NEGOTIATE_NTLM | ntlm.NTLMSSP_NEGOTIATE_SEAL | \
ntlm.NTLMSSP_NEGOTIATE_SIGN | ntlm.NTLM_NEGOTIATE_OEM | ntlm.NTLMSSP_NEGOTIATE_UNICODE
print("Flags")
hexdump(struct.pack('<L', flags))
print("\n")
print("4.2.4.1.1 NTOWFv2 and LMOWFv2")
res = ntlm.NTOWFv2(self.user, self.password, self.domain)
hexdump(res)
self.assertTrue(res == bytearray(
b'\x0c\x86\x8a@;\xfdz\x93\xa3\x00\x1e\xf2.\xf0.?'))
print("\n")
print("\n")
print("4.2.4.1.2 Session Base Key")
ntResponse, lmResponse, sessionBaseKey = ntlm.computeResponseNTLMv2(
flags, self.serverChallenge, self.clientChallenge, serverName,
self.domain, self.user, self.password, '', '')
hexdump(sessionBaseKey)
self.assertTrue(sessionBaseKey == bytearray(
b'\x8d\xe4\x0c\xca\xdb\xc1\x4a\x82\xf1\x5c\xb0\xad\x0d\xe9\x5c\xa3'
))
print("\n")
print("4.2.4.2.1 LMv2 Response")
hexdump(lmResponse)
self.assertTrue(lmResponse == bytearray(
b'\x86\xc3P\x97\xac\x9c\xec\x10%TvJW\xcc\xcc\x19\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa'
))
print("\n")
print("4.2.4.2.2 NTLMv2 Response")
hexdump(ntResponse[:16])
self.assertTrue(ntResponse[:16] == bytearray(
b'\x68\xcd\x0a\xb8\x51\xe5\x1c\x96\xaa\xbc\x92\x7b\xeb\xef\x6a\x1c'
))
print("\n")
print("4.2.4.2.3 Encrypted Session Key")
keyExchangeKey = ntlm.KXKEY(flags, sessionBaseKey, lmResponse,
self.serverChallenge, self.password, '',
'')
encryptedSessionKey = ntlm.generateEncryptedSessionKey(
keyExchangeKey, self.randomSessionKey)
hexdump(encryptedSessionKey)
self.assertTrue(encryptedSessionKey == bytearray(
b'\xC5\xDA\xD2\x54\x4F\xC9\x79\x90\x94\xCE\x1C\xE9\x0B\xC9\xD0\x3E'
))
print("\n")
print("AUTHENTICATE MESSAGE")
encryptedSessionKey = ntlm.generateEncryptedSessionKey(
keyExchangeKey, self.randomSessionKey)
ntlmChallengeResponse = ntlm.NTLMAuthChallengeResponse(
self.user, self.password, self.serverChallenge)
ntlmChallengeResponse['flags'] = flags
ntlmChallengeResponse['host_name'] = self.workstationName.encode(
'utf-16le')
ntlmChallengeResponse['domain_name'] = self.domain.encode('utf-16le')
ntlmChallengeResponse['lanman'] = lmResponse
ntlmChallengeResponse['ntlm'] = ntResponse
ntlmChallengeResponse['session_key'] = encryptedSessionKey
hexdump(ntlmChallengeResponse.getData())
self.assertTrue(ntlmChallengeResponse.getData() == bytearray(
b'NTLMSSP\x00\x03\x00\x00\x00\x18\x00\x18\x00|\x00\x00\x00T\x00T\x00\x94\x00\x00\x00\x0c\x00\x0c\x00X\x00\x00\x00\x08\x00\x08\x00d\x00\x00\x00\x10\x00\x10\x00l\x00\x00\x00\x10\x00\x10\x00\xe8\x00\x00\x003\x82\x8a\xe2D\x00o\x00m\x00a\x00i\x00n\x00U\x00s\x00e\x00r\x00C\x00O\x00M\x00P\x00U\x00T\x00E\x00R\x00\x86\xc3P\x97\xac\x9c\xec\x10%TvJW\xcc\xcc\x19\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaah\xcd\n\xb8Q\xe5\x1c\x96\xaa\xbc\x92{\xeb\xefj\x1c\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\x00\x00\x00\x00\x02\x00\x0c\x00D\x00o\x00m\x00a\x00i\x00n\x00\x01\x00\x0c\x00S\x00e\x00r\x00v\x00e\x00r\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc5\xda\xd2TO\xc9y\x90\x94\xce\x1c\xe9\x0b\xc9\xd0>'
))
print("\n")
print("4.2.4.4 GSS_WrapEx")
print("Plaintext")
hexdump(self.plaintext)
print("\n")
print("Output of SEAL()")
exportedSessionKey = self.randomSessionKey
clientSigningKey = ntlm.SIGNKEY(flags, exportedSessionKey)
clientSealingKey = ntlm.SEALKEY(flags, exportedSessionKey)
from Cryptodome.Cipher import ARC4
cipher2 = ARC4.new(clientSealingKey)
client_sealing_h = cipher2.encrypt
print("SEALKEY()")
hexdump(clientSealingKey)
self.assertTrue(clientSealingKey == bytearray(
b'Y\xf6\x00\x97<\xc4\x96\n%H\n|\x19nLX'))
print("\n")
print("SIGNKEY()")
hexdump(clientSigningKey)
self.assertTrue(clientSigningKey == bytearray(
b'G\x88\xdc\x86\x1bG\x82\xf3]C\xfd\x98\xfe\x1a-9'))
print("\n")
print("Sealed Data")
sealedMsg, signature = ntlm.SEAL(flags, clientSealingKey,
clientSigningKey, self.plaintext,
self.plaintext, self.seqNum,
client_sealing_h)
#signature = ntlm.SIGN(flags, clientSigningKey, plaintext, seqNum, client_sealing_h)
hexdump(sealedMsg)
self.assertTrue(sealedMsg == bytearray(
b'T\xe5\x01e\xbf\x196\xdc\x99` \xc1\x81\x1b\x0f\x06\xfb_'))
print("\n")
print("Signature")
hexdump(signature.getData())
self.assertTrue(signature.getData() == bytearray(
b'\x01\x00\x00\x00\x00\xc1a\xa1\x1e@\x03\x9f\x00\x00\x00\x00'))
#print (repr(bytearray(str(signature))))
#raise
print("\n")
ntlm.USE_NTLMv2 = True
serverName = '\x02\x00\x0c\x00\x44\x00\x6f\x00\x6d\x00\x61\x00\x69\x00\x6e\x00\x01\x00\x0c\x00\x53\x00\x65\x00\x72\x00\x76\x00\x65\x00\x72\x00\x00\x00\x00\x00'
# Still the aTime won't be set to zero. that must be changed in ntlm.computeResponseNTLM2. Gotta make this more automated
flags = ntlm.NTLMSSP_KEY_EXCHANGE | ntlm.NTLMSSP_KEY_56 | ntlm.NTLMSSP_KEY_128 | ntlm.NTLMSSP_VERSION | ntlm.NTLMSSP_TARGET_INFO | ntlm.NTLMSSP_NTLM2_KEY | ntlm.NTLMSSP_TARGET_TYPE_SERVER | ntlm.NTLMSSP_ALWAYS_SIGN | ntlm.NTLMSSP_NTLM_KEY | ntlm.NTLMSSP_SEAL | ntlm.NTLMSSP_SIGN | ntlm.NTLMSSP_OEM | ntlm.NTLMSSP_UNICODE
print "Flags"
hexdump(struct.pack('<L', flags))
print "\n"
#av_pairs = ntlm.AV_PAIRS()
#av_pairs[ntlm.NTLMSSP_AV_HOSTNAME] = serverName.encode('utf-16le')
#av_pairs[ntlm.NTLMSSP_AV_DOMAINNAME] = domain.encode('utf-16le')
#print "AV PAIRS"
#hexdump(av_pairs.getData())
print "\n"
print "4.2.4.1.1 NTOWFv2 and LMOWFv2"
hexdump(ntlm.NTOWFv2(user, password, domain))
print "\n"
hexdump(ntlm.LMOWFv2(user, password, domain))
print "\n"
print "4.2.4.1.2 Session Base Key"
ntResponse, lmResponse, sessionBaseKey = ntlm.computeResponseNTLMv2(
flags, serverChallenge, clientChallenge, serverName, domain, user,
password, '', '')
hexdump(sessionBaseKey)
print "\n"
print "4.2.4.2.1 LMv2 Response"
hexdump(lmResponse)
print "\n"
print "4.2.4.2.2 NTLMv2 Response"
hexdump(ntResponse)
