Add tests for cssp ntlm authentication protocol

2015-03-09 22:31:08 +01:00
parent 95052a323f
commit 20de5f6f82
2 changed files with 139 additions and 0 deletions
--- a/test/test_protocol_rdp_cssp_ntlm.py
+++ b/test/test_protocol_rdp_cssp_ntlm.py
@@ -0,0 +1,128 @@
+#
+# Copyright (c) 2014 Sylvain Peyrefitte
+#
+# This file is part of rdpy.
+#
+# rdpy is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# 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.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+"""
+unit test for rdpy.protocol.rdp.nla.cssp and ntlm module
+"""
+import unittest
+import os, sys
+# Change path so we find rdpy
+sys.path.insert(1, os.path.join(sys.path[0], '..'))
+
+from rdpy.protocol.rdp.nla import cssp, ntlm
+from rdpy.security import rc4
+
+pubKeyHex = """
+MIGJAoGBAJ6VtUEDxTPqKWUrZe8wcd1zuzA77Mpyz73g+C
+H/ppd2oQi10saVgdK6cRBKrCU0N6DD\nV/DqH4yE63vmbF
+AmH7dBCljTgIc9C0HZvFQ6D3cUefW5pDjrEwg1rr+zF1ri
+WIk5xCJ/FleQCK+R\nO5XIU9DAjhmK8xC8yMdC+xLeLV6D
+AgMBAAE=
+"""
+peer0_0 = """
+MC+gAwIBAqEoMCYwJKAiBCBOVExNU1NQAAEAAAA1gghgAA
+AAAAAAAAAAAAAAAAAAAA==
+"""
+peer1_0 = """
+MIIBCaADAgECoYIBADCB/TCB+qCB9wSB9E5UTE1TU1AAAg
+AAAA4ADgA4AAAANYKJYnPHQ6nn/Lv8\nAAAAAAAAAACuAK
+4ARgAAAAYBsR0AAAAPUwBJAFIAQQBEAEUATAACAA4AUwBJ
+AFIAQQBEAEUATAAB\nABYAVwBBAFYALQBHAEwAVwAtADAA
+MAA5AAQAGgBTAGkAcgBhAGQAZQBsAC4AbABvAGMAYQBsAA
+MA\nMgB3AGEAdgAtAGcAbAB3AC0AMAAwADkALgBTAGkAcg
+BhAGQAZQBsAC4AbABvAGMAYQBsAAUAGgBT\nAGkAcgBhAG
+QAZQBsAC4AbABvAGMAYQBsAAcACABWkzQyx1XQAQAAAAA=
+"""
+peer0_1 = """
+MIICD6ADAgECoYIBYjCCAV4wggFaoIIBVgSCAVJOVExNU1
+NQAAMAAAAYABgAUAAAANoA2gBoAAAA\nCAAIAEAAAAAIAA
+gASAAAAAAAAABQAAAAEAAQAEIBAAA1gghgYwBvAGMAbwB0
+AG8AdABvABqKwrxk\n2sAom6gUCFFt1rgpCdKZGTNwnlGg
+bsU5R/OelmrD/LLrx+ABAQAAAAAAAABFCDLHVdABKQnSmR
+kz\ncJ4AAAAAAgAOAFMASQBSAEEARABFAEwAAQAWAFcAQQ
+BWAC0ARwBMAFcALQAwADAAOQAEABoAUwBp\nAHIAYQBkAG
+UAbAAuAGwAbwBjAGEAbAADADIAdwBhAHYALQBnAGwAdwAt
+ADAAMAA5AC4AUwBpAHIA\nYQBkAGUAbAAuAGwAbwBjAGEA
+bAAFABoAUwBpAHIAYQBkAGUAbAAuAGwAbwBjAGEAbAAHAA
+gAVpM0\nMsdV0AEAAAAAv+z19mkBOu9b0Kv+P991MKOCAK
+AEggCcAQAAAMQOzZaPZ8DdAAAAAM+IvTDiU0pL\njUnU6a
+NjH+gZWeaIlqpQNYECmpElixwPj8aRRFVfTtkbw66U3gmo
+3YBkUoVK8tfHESkivuWtV2tP\n3KGuAFv/6GzbFYQYlA7r
+zZ1Bw072ps8s9cWeoNmAX6oiZmFW3j7LX3xkr7+nJoOoXI
+jzvorm5kz3\nldCo8Iwh+IZ3SSnj0/h4H1GR
+"""
+
+class TestCsspNtlm(unittest.TestCase):
+    """
+    @summary: test generate ntlmv2 over cssp authentication protocol
+    """
+    def testCSSPNTLMAuthentication(self):
+        negotiate_data_request = cssp.decodeDERTRequest(peer0_0.decode('base64'))
+        challenge_data_request = cssp.decodeDERTRequest(peer1_0.decode('base64'))
+        authenticate_data_request = cssp.decodeDERTRequest(peer0_1.decode('base64'))
+        
+        negotiate_data = cssp.getNegoTokens(negotiate_data_request)[0]
+        challenge_data = cssp.getNegoTokens(challenge_data_request)[0]
+        authenticate_data = cssp.getNegoTokens(authenticate_data_request)[0]
+        
+        negotiate = ntlm.NegotiateMessage()
+        negotiate_data.readType(negotiate)
+        
+        challenge = ntlm.ChallengeMessage()
+        challenge_data.readType(challenge)
+        
+        ServerChallenge = challenge.ServerChallenge.value
+        ServerName = challenge.getTargetInfo()
+    
+        authenticate = ntlm.AuthenticateMessage()
+        authenticate_data.readType(authenticate)
+        
+        NtChallengeResponseTemp = authenticate.getNtChallengeResponse()
+        NTProofStr = NtChallengeResponseTemp[:16]
+        temp = NtChallengeResponseTemp[16:]
+        Timestamp = temp[8:16]
+        ClientChallenge = temp[16:24]
+        
+        EncryptedRandomSessionKey = authenticate.getEncryptedRandomSession()
+        domain = "coco"
+        user = "toto"
+        password = "lolo"
+        
+        ResponseKeyNT = ntlm.NTOWFv2(password, user, domain)
+        ResponseKeyLM = ntlm.LMOWFv2(password, user, domain)
+        NtChallengeResponse, LmChallengeResponse, SessionBaseKey = ntlm.ComputeResponsev2(ResponseKeyNT, ResponseKeyLM, ServerChallenge, ClientChallenge, Timestamp, ServerName)
+        KeyExchangeKey = ntlm.KXKEYv2(SessionBaseKey, LmChallengeResponse, ServerChallenge)
+        ExportedSessionKey = ntlm.RC4K(KeyExchangeKey, EncryptedRandomSessionKey)
+        
+        domain, user = domain, user
+        if challenge.NegotiateFlags.value & ntlm.Negotiate.NTLMSSP_NEGOTIATE_UNICODE:
+            domain, user = ntlm.UNICODE(domain), ntlm.UNICODE(user)
+            
+        ClientSigningKey = ntlm.SIGNKEY(ExportedSessionKey, True)
+        ServerSigningKey = ntlm.SIGNKEY(ExportedSessionKey, False)
+        ClientSealingKey = ntlm.SEALKEY(ExportedSessionKey, True)
+        ServerSealingKey = ntlm.SEALKEY(ExportedSessionKey, False)
+        
+        interface = ntlm.NTLMv2SecurityInterface(rc4.RC4Key(ClientSealingKey), rc4.RC4Key(ServerSealingKey), ClientSigningKey, ServerSigningKey)
+        
+        EncryptedPubKeySrc = cssp.getPubKeyAuth(authenticate_data_request)
+        EncryptedPubKeyDst = interface.GSS_WrapEx(pubKeyHex.decode('base64'))
+        
+        self.assertTrue(EncryptedPubKeySrc == EncryptedPubKeyDst, "Public key must be equals")
+