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Added: Random challenge for each requests (default)

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lgandx 2017-01-03 17:35:49 -03:00
parent 17dc81cb68
commit 1d38cd39af
7 changed files with 62 additions and 41 deletions
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13
servers/LDAP.py
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@ -47,7 +47,7 @@ def ParseLDAPHash(data, client):
UserOffset = struct.unpack('<H',data[82:84])[0]
User = SSPIStart[UserOffset:UserOffset+UserLen].replace('\x00','')
WriteHash = User + "::" + Domain + ":" + LMHash + ":" + NtHash + ":" + settings.Config.NumChal
WriteHash = User + "::" + Domain + ":" + LMHash + ":" + NtHash + ":" + Challenge.encode('hex')
SaveToDb({
'module': 'LDAP',
@ -61,15 +61,15 @@ def ParseLDAPHash(data, client):
if LMhashLen < 2 and settings.Config.Verbose:
print text("[LDAP] Ignoring anonymous NTLM authentication")
def ParseNTLM(data,client):
def ParseNTLM(data,client, Challenge):
if re.search('(NTLMSSP\x00\x01\x00\x00\x00)', data):
NTLMChall = LDAPNTLMChallenge(MessageIDASNStr=data[8:9],NTLMSSPNtServerChallenge=settings.Config.Challenge)
NTLMChall = LDAPNTLMChallenge(MessageIDASNStr=data[8:9],NTLMSSPNtServerChallenge=Challenge)
NTLMChall.calculate()
return str(NTLMChall)
elif re.search('(NTLMSSP\x00\x03\x00\x00\x00)', data):
ParseLDAPHash(data,client)
def ParseLDAPPacket(data, client):
def ParseLDAPPacket(data, client, Challenge):
if data[1:2] == '\x84':
PacketLen = struct.unpack('>i',data[2:6])[0]
MessageSequence = struct.unpack('<b',data[8:9])[0]
@ -96,7 +96,7 @@ def ParseLDAPPacket(data, client):
})
if sasl == "\xA3":
Buffer = ParseNTLM(data,client)
Buffer = ParseNTLM(data,client, Challenge)
return Buffer
elif Operation == "\x63":
@ -111,7 +111,8 @@ class LDAP(BaseRequestHandler):
while True:
self.request.settimeout(0.5)
data = self.request.recv(8092)
Buffer = ParseLDAPPacket(data,self.client_address[0])
Challenge = RandomChallenge()
Buffer = ParseLDAPPacket(data,self.client_address[0], Challenge)
if Buffer:
self.request.send(Buffer)