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Added SMBv2 support enabled by default.
This commit is contained in:
lgandx
parent
2e1651f8fd
commit
85d7974513
6 changed files with 359 additions and 48 deletions
291
packets.py
291
packets.py
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@ -1,7 +1,7 @@
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#!/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 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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@ -1280,36 +1280,263 @@ class SMBSessTreeAns(Packet):
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class SMB2Header(Packet):
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fields = OrderedDict([
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("Proto", "\xff\x53\x4d\x42"),
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("Cmd", "\x72"),
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("Error-Code", "\x00\x00\x00\x00" ),
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("Flag1", "\x10"),
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("Flag2", "\x00\x00"),
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("Pidhigh", "\x00\x00"),
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("Signature", "\x00\x00\x00\x00\x00\x00\x00\x00"),
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("Reserved", "\x00\x00"),
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("TID", "\x00\x00"),
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("PID", "\xff\xfe"),
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("UID", "\x00\x00"),
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("MID", "\x00\x00"),
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("Proto", "\xfe\x53\x4d\x42"),
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("Len", "\x40\x00"),#Always 64.
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("CreditCharge", "\x00\x00"),
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("NTStatus", "\x00\x00\x00\x00"),
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("Cmd", "\x00\x00"),
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("Credits", "\x01\x00"),
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("Flags", "\x01\x00\x00\x00"),
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("NextCmd", "\x00\x00\x00\x00"),
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("MessageId", "\x00\x00\x00\x00\x00\x00\x00\x00"),
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("PID", "\x00\x00\x00\x00"),
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("TID", "\x00\x00\x00\x00"),
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("SessionID", "\x00\x00\x00\x00\x00\x00\x00\x00"),
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("Signature", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"),
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])
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class SMB2Nego(Packet):
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fields = OrderedDict([
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("Wordcount", "\x00"),
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("Bcc", "\x62\x00"),
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("Data", "")
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class SMB2NegoAns(Packet):
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fields = OrderedDict([
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("Len", "\x41\x00"),
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("Signing", "\x01\x00"),
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("Dialect", "\xff\x02"),
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("Reserved", "\x00\x00"),
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("Guid", "\xee\x85\xab\xf7\xea\xf6\x0c\x4f\x92\x81\x92\x47\x6d\xeb\x76\xa9"),
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("Capabilities", "\x07\x00\x00\x00"),
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("MaxTransSize", "\x00\x00\x10\x00"),
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("MaxReadSize", "\x00\x00\x10\x00"),
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("MaxWriteSize", "\x00\x00\x10\x00"),
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("SystemTime", "\x27\xfb\xea\xd7\x50\x09\xd2\x01"),
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("BootTime", "\x22\xfb\x80\x01\x40\x09\xd2\x01"),
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("SecBlobOffSet", "\x80\x00"),
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("SecBlobLen", "\x78\x00"),
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("Reserved2", "\x00\x00\x00\x00"),
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("InitContextTokenASNId", "\x60"),
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("InitContextTokenASNLen", "\x76"),
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("ThisMechASNId", "\x06"),
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("ThisMechASNLen", "\x06"),
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("ThisMechASNStr", "\x2b\x06\x01\x05\x05\x02"),
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("SpNegoTokenASNId", "\xA0"),
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("SpNegoTokenASNLen", "\x6c"),
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("NegTokenASNId", "\x30"),
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("NegTokenASNLen", "\x6a"),
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("NegTokenTag0ASNId", "\xA0"),
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("NegTokenTag0ASNLen", "\x3c"),
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("NegThisMechASNId", "\x30"),
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("NegThisMechASNLen", "\x3a"),
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("NegThisMech1ASNId", "\x06"),
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("NegThisMech1ASNLen", "\x0a"),
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("NegThisMech1ASNStr", "\x2b\x06\x01\x04\x01\x82\x37\x02\x02\x1e"),
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("NegThisMech2ASNId", "\x06"),
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("NegThisMech2ASNLen", "\x09"),
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("NegThisMech2ASNStr", "\x2a\x86\x48\x82\xf7\x12\x01\x02\x02"),
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("NegThisMech3ASNId", "\x06"),
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("NegThisMech3ASNLen", "\x09"),
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("NegThisMech3ASNStr", "\x2a\x86\x48\x86\xf7\x12\x01\x02\x02"),
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("NegThisMech4ASNId", "\x06"),
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("NegThisMech4ASNLen", "\x0a"),
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("NegThisMech4ASNStr", "\x2a\x86\x48\x86\xf7\x12\x01\x02\x02\x03"),
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("NegThisMech5ASNId", "\x06"),
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("NegThisMech5ASNLen", "\x0a"),
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("NegThisMech5ASNStr", "\x2b\x06\x01\x04\x01\x82\x37\x02\x02\x0a"),
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("NegTokenTag3ASNId", "\xA3"),
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("NegTokenTag3ASNLen", "\x2a"),
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("NegHintASNId", "\x30"),
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("NegHintASNLen", "\x28"),
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("NegHintTag0ASNId", "\xa0"),
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("NegHintTag0ASNLen", "\x26"),
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("NegHintFinalASNId", "\x1b"),
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("NegHintFinalASNLen", "\x24"),
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("NegHintFinalASNStr", "Server2008@SMB3.local"),
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])
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def calculate(self):
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StructLen = str(self.fields["Len"])+str(self.fields["Signing"])+str(self.fields["Dialect"])+str(self.fields["Reserved"])+str(self.fields["Guid"])+str(self.fields["Capabilities"])+str(self.fields["MaxTransSize"])+str(self.fields["MaxReadSize"])+str(self.fields["MaxWriteSize"])+str(self.fields["SystemTime"])+str(self.fields["BootTime"])+str(self.fields["SecBlobOffSet"])+str(self.fields["SecBlobLen"])+str(self.fields["Reserved2"])
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SecBlobLen = str(self.fields["InitContextTokenASNId"])+str(self.fields["InitContextTokenASNLen"])+str(self.fields["ThisMechASNId"])+str(self.fields["ThisMechASNLen"])+str(self.fields["ThisMechASNStr"])+str(self.fields["SpNegoTokenASNId"])+str(self.fields["SpNegoTokenASNLen"])+str(self.fields["NegTokenASNId"])+str(self.fields["NegTokenASNLen"])+str(self.fields["NegTokenTag0ASNId"])+str(self.fields["NegTokenTag0ASNLen"])+str(self.fields["NegThisMechASNId"])+str(self.fields["NegThisMechASNLen"])+str(self.fields["NegThisMech1ASNId"])+str(self.fields["NegThisMech1ASNLen"])+str(self.fields["NegThisMech1ASNStr"])+str(self.fields["NegThisMech2ASNId"])+str(self.fields["NegThisMech2ASNLen"])+str(self.fields["NegThisMech2ASNStr"])+str(self.fields["NegThisMech3ASNId"])+str(self.fields["NegThisMech3ASNLen"])+str(self.fields["NegThisMech3ASNStr"])+str(self.fields["NegThisMech4ASNId"])+str(self.fields["NegThisMech4ASNLen"])+str(self.fields["NegThisMech4ASNStr"])+str(self.fields["NegThisMech5ASNId"])+str(self.fields["NegThisMech5ASNLen"])+str(self.fields["NegThisMech5ASNStr"])+str(self.fields["NegTokenTag3ASNId"])+str(self.fields["NegTokenTag3ASNLen"])+str(self.fields["NegHintASNId"])+str(self.fields["NegHintASNLen"])+str(self.fields["NegHintTag0ASNId"])+str(self.fields["NegHintTag0ASNLen"])+str(self.fields["NegHintFinalASNId"])+str(self.fields["NegHintFinalASNLen"])+str(self.fields["NegHintFinalASNStr"])
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AsnLenStart = str(self.fields["ThisMechASNId"])+str(self.fields["ThisMechASNLen"])+str(self.fields["ThisMechASNStr"])+str(self.fields["SpNegoTokenASNId"])+str(self.fields["SpNegoTokenASNLen"])+str(self.fields["NegTokenASNId"])+str(self.fields["NegTokenASNLen"])+str(self.fields["NegTokenTag0ASNId"])+str(self.fields["NegTokenTag0ASNLen"])+str(self.fields["NegThisMechASNId"])+str(self.fields["NegThisMechASNLen"])+str(self.fields["NegThisMech1ASNId"])+str(self.fields["NegThisMech1ASNLen"])+str(self.fields["NegThisMech1ASNStr"])+str(self.fields["NegThisMech2ASNId"])+str(self.fields["NegThisMech2ASNLen"])+str(self.fields["NegThisMech2ASNStr"])+str(self.fields["NegThisMech3ASNId"])+str(self.fields["NegThisMech3ASNLen"])+str(self.fields["NegThisMech3ASNStr"])+str(self.fields["NegThisMech4ASNId"])+str(self.fields["NegThisMech4ASNLen"])+str(self.fields["NegThisMech4ASNStr"])+str(self.fields["NegThisMech5ASNId"])+str(self.fields["NegThisMech5ASNLen"])+str(self.fields["NegThisMech5ASNStr"])+str(self.fields["NegTokenTag3ASNId"])+str(self.fields["NegTokenTag3ASNLen"])+str(self.fields["NegHintASNId"])+str(self.fields["NegHintASNLen"])+str(self.fields["NegHintTag0ASNId"])+str(self.fields["NegHintTag0ASNLen"])+str(self.fields["NegHintFinalASNId"])+str(self.fields["NegHintFinalASNLen"])+str(self.fields["NegHintFinalASNStr"])
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AsnLen2 = str(self.fields["NegTokenASNId"])+str(self.fields["NegTokenASNLen"])+str(self.fields["NegTokenTag0ASNId"])+str(self.fields["NegTokenTag0ASNLen"])+str(self.fields["NegThisMechASNId"])+str(self.fields["NegThisMechASNLen"])+str(self.fields["NegThisMech1ASNId"])+str(self.fields["NegThisMech1ASNLen"])+str(self.fields["NegThisMech1ASNStr"])+str(self.fields["NegThisMech2ASNId"])+str(self.fields["NegThisMech2ASNLen"])+str(self.fields["NegThisMech2ASNStr"])+str(self.fields["NegThisMech3ASNId"])+str(self.fields["NegThisMech3ASNLen"])+str(self.fields["NegThisMech3ASNStr"])+str(self.fields["NegThisMech4ASNId"])+str(self.fields["NegThisMech4ASNLen"])+str(self.fields["NegThisMech4ASNStr"])+str(self.fields["NegThisMech5ASNId"])+str(self.fields["NegThisMech5ASNLen"])+str(self.fields["NegThisMech5ASNStr"])+str(self.fields["NegTokenTag3ASNId"])+str(self.fields["NegTokenTag3ASNLen"])+str(self.fields["NegHintASNId"])+str(self.fields["NegHintASNLen"])+str(self.fields["NegHintTag0ASNId"])+str(self.fields["NegHintTag0ASNLen"])+str(self.fields["NegHintFinalASNId"])+str(self.fields["NegHintFinalASNLen"])+str(self.fields["NegHintFinalASNStr"])
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MechTypeLen = str(self.fields["NegThisMechASNId"])+str(self.fields["NegThisMechASNLen"])+str(self.fields["NegThisMech1ASNId"])+str(self.fields["NegThisMech1ASNLen"])+str(self.fields["NegThisMech1ASNStr"])+str(self.fields["NegThisMech2ASNId"])+str(self.fields["NegThisMech2ASNLen"])+str(self.fields["NegThisMech2ASNStr"])+str(self.fields["NegThisMech3ASNId"])+str(self.fields["NegThisMech3ASNLen"])+str(self.fields["NegThisMech3ASNStr"])+str(self.fields["NegThisMech4ASNId"])+str(self.fields["NegThisMech4ASNLen"])+str(self.fields["NegThisMech4ASNStr"])+str(self.fields["NegThisMech5ASNId"])+str(self.fields["NegThisMech5ASNLen"])+str(self.fields["NegThisMech5ASNStr"])
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Tag3Len = str(self.fields["NegHintASNId"])+str(self.fields["NegHintASNLen"])+str(self.fields["NegHintTag0ASNId"])+str(self.fields["NegHintTag0ASNLen"])+str(self.fields["NegHintFinalASNId"])+str(self.fields["NegHintFinalASNLen"])+str(self.fields["NegHintFinalASNStr"])
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#Packet Struct len
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self.fields["Len"] = struct.pack("<h",len(StructLen)+1)
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#Sec Blob lens
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self.fields["SecBlobOffSet"] = struct.pack("<h",len(StructLen)+64)
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self.fields["SecBlobLen"] = struct.pack("<h",len(SecBlobLen))
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#ASN Stuff
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self.fields["InitContextTokenASNLen"] = struct.pack("<B", len(SecBlobLen)-2)
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self.fields["ThisMechASNLen"] = struct.pack("<B", len(str(self.fields["ThisMechASNStr"])))
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self.fields["SpNegoTokenASNLen"] = struct.pack("<B", len(AsnLen2))
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self.fields["NegTokenASNLen"] = struct.pack("<B", len(AsnLen2)-2)
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self.fields["NegTokenTag0ASNLen"] = struct.pack("<B", len(MechTypeLen))
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self.fields["NegThisMechASNLen"] = struct.pack("<B", len(MechTypeLen)-2)
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self.fields["NegThisMech1ASNLen"] = struct.pack("<B", len(str(self.fields["NegThisMech1ASNStr"])))
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self.fields["NegThisMech2ASNLen"] = struct.pack("<B", len(str(self.fields["NegThisMech2ASNStr"])))
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self.fields["NegThisMech3ASNLen"] = struct.pack("<B", len(str(self.fields["NegThisMech3ASNStr"])))
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self.fields["NegThisMech4ASNLen"] = struct.pack("<B", len(str(self.fields["NegThisMech4ASNStr"])))
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self.fields["NegThisMech5ASNLen"] = struct.pack("<B", len(str(self.fields["NegThisMech5ASNStr"])))
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self.fields["NegTokenTag3ASNLen"] = struct.pack("<B", len(Tag3Len))
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self.fields["NegHintASNLen"] = struct.pack("<B", len(Tag3Len)-2)
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self.fields["NegHintTag0ASNLen"] = struct.pack("<B", len(Tag3Len)-4)
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self.fields["NegHintFinalASNLen"] = struct.pack("<B", len(str(self.fields["NegHintFinalASNStr"])))
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class SMB2Session1Data(Packet):
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fields = OrderedDict([
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("Len", "\x09\x00"),
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("SessionFlag", "\x00\x00"),
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("SecBlobOffSet", "\x48\x00"),
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("SecBlobLen", "\x06\x01"),
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("ChoiceTagASNId", "\xa1"),
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("ChoiceTagASNLenOfLen", "\x82"),
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("ChoiceTagASNIdLen", "\x01\x02"),
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("NegTokenTagASNId", "\x30"),
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("NegTokenTagASNLenOfLen","\x81"),
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("NegTokenTagASNIdLen", "\xff"),
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("Tag0ASNId", "\xA0"),
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("Tag0ASNIdLen", "\x03"),
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("NegoStateASNId", "\x0A"),
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("NegoStateASNLen", "\x01"),
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("NegoStateASNValue", "\x01"),
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("Tag1ASNId", "\xA1"),
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("Tag1ASNIdLen", "\x0c"),
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("Tag1ASNId2", "\x06"),
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("Tag1ASNId2Len", "\x0A"),
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("Tag1ASNId2Str", "\x2b\x06\x01\x04\x01\x82\x37\x02\x02\x0a"),
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("Tag2ASNId", "\xA2"),
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("Tag2ASNIdLenOfLen", "\x81"),
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("Tag2ASNIdLen", "\xE9"),
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("Tag3ASNId", "\x04"),
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("Tag3ASNIdLenOfLen", "\x81"),
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("Tag3ASNIdLen", "\xE6"),
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("NTLMSSPSignature", "NTLMSSP"),
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("NTLMSSPSignatureNull", "\x00"),
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("NTLMSSPMessageType", "\x02\x00\x00\x00"),
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("NTLMSSPNtWorkstationLen","\x1e\x00"),
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("NTLMSSPNtWorkstationMaxLen","\x1e\x00"),
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("NTLMSSPNtWorkstationBuffOffset","\x38\x00\x00\x00"),
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("NTLMSSPNtNegotiateFlags","\x15\x82\x89\xe2"),
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("NTLMSSPNtServerChallenge","\x81\x22\x33\x34\x55\x46\xe7\x88"),
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("NTLMSSPNtReserved","\x00\x00\x00\x00\x00\x00\x00\x00"),
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("NTLMSSPNtTargetInfoLen","\x94\x00"),
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("NTLMSSPNtTargetInfoMaxLen","\x94\x00"),
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("NTLMSSPNtTargetInfoBuffOffset","\x56\x00\x00\x00"),
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("NegTokenInitSeqMechMessageVersionHigh","\x06"),
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("NegTokenInitSeqMechMessageVersionLow","\x03"),
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("NegTokenInitSeqMechMessageVersionBuilt","\x80\x25"),
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("NegTokenInitSeqMechMessageVersionReserved","\x00\x00\x00"),
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("NegTokenInitSeqMechMessageVersionNTLMType","\x0f"),
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("NTLMSSPNtWorkstationName","SMB3"),
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("NTLMSSPNTLMChallengeAVPairsId","\x02\x00"),
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("NTLMSSPNTLMChallengeAVPairsLen","\x0a\x00"),
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("NTLMSSPNTLMChallengeAVPairsUnicodeStr","SMB3"),
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("NTLMSSPNTLMChallengeAVPairs1Id","\x01\x00"),
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("NTLMSSPNTLMChallengeAVPairs1Len","\x1e\x00"),
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("NTLMSSPNTLMChallengeAVPairs1UnicodeStr","WIN-PRH492RQAFV"),
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("NTLMSSPNTLMChallengeAVPairs2Id","\x04\x00"),
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("NTLMSSPNTLMChallengeAVPairs2Len","\x1e\x00"),
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("NTLMSSPNTLMChallengeAVPairs2UnicodeStr","SMB3.local"),
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("NTLMSSPNTLMChallengeAVPairs3Id","\x03\x00"),
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("NTLMSSPNTLMChallengeAVPairs3Len","\x1e\x00"),
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("NTLMSSPNTLMChallengeAVPairs3UnicodeStr","WIN-PRH492RQAFV.SMB3.local"),
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("NTLMSSPNTLMChallengeAVPairs5Id","\x05\x00"),
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("NTLMSSPNTLMChallengeAVPairs5Len","\x04\x00"),
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("NTLMSSPNTLMChallengeAVPairs5UnicodeStr","SMB3.local"),
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("NTLMSSPNTLMChallengeAVPairs7Id","\x07\x00"),
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("NTLMSSPNTLMChallengeAVPairs7Len","\x08\x00"),
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("NTLMSSPNTLMChallengeAVPairs7UnicodeStr","\xc0\x65\x31\x50\xde\x09\xd2\x01"),
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("NTLMSSPNTLMChallengeAVPairs6Id","\x00\x00"),
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("NTLMSSPNTLMChallengeAVPairs6Len","\x00\x00"),
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])
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def calculate(self):
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###### Convert strings to Unicode
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self.fields["NTLMSSPNtWorkstationName"] = self.fields["NTLMSSPNtWorkstationName"].encode('utf-16le')
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self.fields["NTLMSSPNTLMChallengeAVPairsUnicodeStr"] = self.fields["NTLMSSPNTLMChallengeAVPairsUnicodeStr"].encode('utf-16le')
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self.fields["NTLMSSPNTLMChallengeAVPairs1UnicodeStr"] = self.fields["NTLMSSPNTLMChallengeAVPairs1UnicodeStr"].encode('utf-16le')
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self.fields["NTLMSSPNTLMChallengeAVPairs2UnicodeStr"] = self.fields["NTLMSSPNTLMChallengeAVPairs2UnicodeStr"].encode('utf-16le')
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self.fields["NTLMSSPNTLMChallengeAVPairs3UnicodeStr"] = self.fields["NTLMSSPNTLMChallengeAVPairs3UnicodeStr"].encode('utf-16le')
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self.fields["NTLMSSPNTLMChallengeAVPairs5UnicodeStr"] = self.fields["NTLMSSPNTLMChallengeAVPairs5UnicodeStr"].encode('utf-16le')
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#Packet struct calc:
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StructLen = str(self.fields["Len"])+str(self.fields["SessionFlag"])+str(self.fields["SecBlobOffSet"])+str(self.fields["SecBlobLen"])
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###### SecBlobLen Calc:
|
||||
CalculateSecBlob = str(self.fields["NTLMSSPSignature"])+str(self.fields["NTLMSSPSignatureNull"])+str(self.fields["NTLMSSPMessageType"])+str(self.fields["NTLMSSPNtWorkstationLen"])+str(self.fields["NTLMSSPNtWorkstationMaxLen"])+str(self.fields["NTLMSSPNtWorkstationBuffOffset"])+str(self.fields["NTLMSSPNtNegotiateFlags"])+str(self.fields["NTLMSSPNtServerChallenge"])+str(self.fields["NTLMSSPNtReserved"])+str(self.fields["NTLMSSPNtTargetInfoLen"])+str(self.fields["NTLMSSPNtTargetInfoMaxLen"])+str(self.fields["NTLMSSPNtTargetInfoBuffOffset"])+str(self.fields["NegTokenInitSeqMechMessageVersionHigh"])+str(self.fields["NegTokenInitSeqMechMessageVersionLow"])+str(self.fields["NegTokenInitSeqMechMessageVersionBuilt"])+str(self.fields["NegTokenInitSeqMechMessageVersionReserved"])+str(self.fields["NegTokenInitSeqMechMessageVersionNTLMType"])+str(self.fields["NTLMSSPNtWorkstationName"])+str(self.fields["NTLMSSPNTLMChallengeAVPairsId"])+str(self.fields["NTLMSSPNTLMChallengeAVPairsLen"])+str(self.fields["NTLMSSPNTLMChallengeAVPairsUnicodeStr"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs1Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs1Len"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs1UnicodeStr"])+(self.fields["NTLMSSPNTLMChallengeAVPairs2Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs2Len"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs2UnicodeStr"])+(self.fields["NTLMSSPNTLMChallengeAVPairs3Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs3Len"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs3UnicodeStr"])+(self.fields["NTLMSSPNTLMChallengeAVPairs5Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs5Len"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs5UnicodeStr"])+(self.fields["NTLMSSPNTLMChallengeAVPairs7Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs7Len"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs7UnicodeStr"])+(self.fields["NTLMSSPNTLMChallengeAVPairs6Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs6Len"])
|
||||
|
||||
AsnLen = str(self.fields["ChoiceTagASNId"])+str(self.fields["ChoiceTagASNLenOfLen"])+str(self.fields["ChoiceTagASNIdLen"])+str(self.fields["NegTokenTagASNId"])+str(self.fields["NegTokenTagASNLenOfLen"])+str(self.fields["NegTokenTagASNIdLen"])+str(self.fields["Tag0ASNId"])+str(self.fields["Tag0ASNIdLen"])+str(self.fields["NegoStateASNId"])+str(self.fields["NegoStateASNLen"])+str(self.fields["NegoStateASNValue"])+str(self.fields["Tag1ASNId"])+str(self.fields["Tag1ASNIdLen"])+str(self.fields["Tag1ASNId2"])+str(self.fields["Tag1ASNId2Len"])+str(self.fields["Tag1ASNId2Str"])+str(self.fields["Tag2ASNId"])+str(self.fields["Tag2ASNIdLenOfLen"])+str(self.fields["Tag2ASNIdLen"])+str(self.fields["Tag3ASNId"])+str(self.fields["Tag3ASNIdLenOfLen"])+str(self.fields["Tag3ASNIdLen"])
|
||||
|
||||
|
||||
#Packet Struct len
|
||||
self.fields["Len"] = struct.pack("<h",len(StructLen)+1)
|
||||
self.fields["SecBlobLen"] = struct.pack("<H", len(AsnLen+CalculateSecBlob))
|
||||
self.fields["SecBlobOffSet"] = struct.pack("<h",len(StructLen)+64)
|
||||
|
||||
###### ASN Stuff
|
||||
if len(CalculateSecBlob) > 255:
|
||||
self.fields["Tag3ASNIdLen"] = struct.pack(">H", len(CalculateSecBlob))
|
||||
else:
|
||||
self.fields["Tag3ASNIdLenOfLen"] = "\x81"
|
||||
self.fields["Tag3ASNIdLen"] = struct.pack(">B", len(CalculateSecBlob))
|
||||
|
||||
if len(AsnLen+CalculateSecBlob)-3 > 255:
|
||||
self.fields["ChoiceTagASNIdLen"] = struct.pack(">H", len(AsnLen+CalculateSecBlob)-4)
|
||||
else:
|
||||
self.fields["ChoiceTagASNLenOfLen"] = "\x81"
|
||||
self.fields["ChoiceTagASNIdLen"] = struct.pack(">B", len(AsnLen+CalculateSecBlob)-3)
|
||||
|
||||
if len(AsnLen+CalculateSecBlob)-7 > 255:
|
||||
self.fields["NegTokenTagASNIdLen"] = struct.pack(">H", len(AsnLen+CalculateSecBlob)-8)
|
||||
else:
|
||||
self.fields["NegTokenTagASNLenOfLen"] = "\x81"
|
||||
self.fields["NegTokenTagASNIdLen"] = struct.pack(">B", len(AsnLen+CalculateSecBlob)-7)
|
||||
|
||||
tag2length = CalculateSecBlob+str(self.fields["Tag3ASNId"])+str(self.fields["Tag3ASNIdLenOfLen"])+str(self.fields["Tag3ASNIdLen"])
|
||||
|
||||
if len(tag2length) > 255:
|
||||
self.fields["Tag2ASNIdLen"] = struct.pack(">H", len(tag2length))
|
||||
else:
|
||||
self.fields["Tag2ASNIdLenOfLen"] = "\x81"
|
||||
self.fields["Tag2ASNIdLen"] = struct.pack(">B", len(tag2length))
|
||||
|
||||
self.fields["Tag1ASNIdLen"] = struct.pack(">B", len(str(self.fields["Tag1ASNId2"])+str(self.fields["Tag1ASNId2Len"])+str(self.fields["Tag1ASNId2Str"])))
|
||||
self.fields["Tag1ASNId2Len"] = struct.pack(">B", len(str(self.fields["Tag1ASNId2Str"])))
|
||||
|
||||
###### Workstation Offset
|
||||
CalculateOffsetWorkstation = str(self.fields["NTLMSSPSignature"])+str(self.fields["NTLMSSPSignatureNull"])+str(self.fields["NTLMSSPMessageType"])+str(self.fields["NTLMSSPNtWorkstationLen"])+str(self.fields["NTLMSSPNtWorkstationMaxLen"])+str(self.fields["NTLMSSPNtWorkstationBuffOffset"])+str(self.fields["NTLMSSPNtNegotiateFlags"])+str(self.fields["NTLMSSPNtServerChallenge"])+str(self.fields["NTLMSSPNtReserved"])+str(self.fields["NTLMSSPNtTargetInfoLen"])+str(self.fields["NTLMSSPNtTargetInfoMaxLen"])+str(self.fields["NTLMSSPNtTargetInfoBuffOffset"])+str(self.fields["NegTokenInitSeqMechMessageVersionHigh"])+str(self.fields["NegTokenInitSeqMechMessageVersionLow"])+str(self.fields["NegTokenInitSeqMechMessageVersionBuilt"])+str(self.fields["NegTokenInitSeqMechMessageVersionReserved"])+str(self.fields["NegTokenInitSeqMechMessageVersionNTLMType"])
|
||||
|
||||
###### AvPairs Offset
|
||||
CalculateLenAvpairs = str(self.fields["NTLMSSPNTLMChallengeAVPairsId"])+str(self.fields["NTLMSSPNTLMChallengeAVPairsLen"])+str(self.fields["NTLMSSPNTLMChallengeAVPairsUnicodeStr"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs1Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs1Len"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs1UnicodeStr"])+(self.fields["NTLMSSPNTLMChallengeAVPairs2Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs2Len"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs2UnicodeStr"])+(self.fields["NTLMSSPNTLMChallengeAVPairs3Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs3Len"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs3UnicodeStr"])+(self.fields["NTLMSSPNTLMChallengeAVPairs5Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs5Len"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs5UnicodeStr"])+(self.fields["NTLMSSPNTLMChallengeAVPairs7Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs7Len"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs7UnicodeStr"])+(self.fields["NTLMSSPNTLMChallengeAVPairs6Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs6Len"])
|
||||
|
||||
##### Workstation Offset Calculation:
|
||||
self.fields["NTLMSSPNtWorkstationBuffOffset"] = struct.pack("<i", len(CalculateOffsetWorkstation))
|
||||
self.fields["NTLMSSPNtWorkstationLen"] = struct.pack("<h", len(str(self.fields["NTLMSSPNtWorkstationName"])))
|
||||
self.fields["NTLMSSPNtWorkstationMaxLen"] = struct.pack("<h", len(str(self.fields["NTLMSSPNtWorkstationName"])))
|
||||
|
||||
##### Target Offset Calculation:
|
||||
self.fields["NTLMSSPNtTargetInfoBuffOffset"] = struct.pack("<i", len(CalculateOffsetWorkstation+str(self.fields["NTLMSSPNtWorkstationName"])))
|
||||
self.fields["NTLMSSPNtTargetInfoLen"] = struct.pack("<h", len(CalculateLenAvpairs))
|
||||
self.fields["NTLMSSPNtTargetInfoMaxLen"] = struct.pack("<h", len(CalculateLenAvpairs))
|
||||
|
||||
##### IvPair Calculation:
|
||||
self.fields["NTLMSSPNTLMChallengeAVPairs7Len"] = struct.pack("<h", len(str(self.fields["NTLMSSPNTLMChallengeAVPairs7UnicodeStr"])))
|
||||
self.fields["NTLMSSPNTLMChallengeAVPairs5Len"] = struct.pack("<h", len(str(self.fields["NTLMSSPNTLMChallengeAVPairs5UnicodeStr"])))
|
||||
self.fields["NTLMSSPNTLMChallengeAVPairs3Len"] = struct.pack("<h", len(str(self.fields["NTLMSSPNTLMChallengeAVPairs3UnicodeStr"])))
|
||||
self.fields["NTLMSSPNTLMChallengeAVPairs2Len"] = struct.pack("<h", len(str(self.fields["NTLMSSPNTLMChallengeAVPairs2UnicodeStr"])))
|
||||
self.fields["NTLMSSPNTLMChallengeAVPairs1Len"] = struct.pack("<h", len(str(self.fields["NTLMSSPNTLMChallengeAVPairs1UnicodeStr"])))
|
||||
self.fields["NTLMSSPNTLMChallengeAVPairsLen"] = struct.pack("<h", len(str(self.fields["NTLMSSPNTLMChallengeAVPairsUnicodeStr"])))
|
||||
|
||||
class SMB2Session2Data(Packet):
|
||||
fields = OrderedDict([
|
||||
("Len", "\x09\x00"),
|
||||
("SessionFlag", "\x00\x00"),
|
||||
("SecBlobOffSet", "\x00\x00\x00\x00"),
|
||||
])
|
||||
|
||||
def calculate(self):
|
||||
self.fields["Bcc"] = struct.pack("<H",len(str(self.fields["Data"])))
|
||||
|
||||
class SMB2NegoData(Packet):
|
||||
fields = OrderedDict([
|
||||
("StrType","\x02" ),
|
||||
("dialect", "NT LM 0.12\x00"),
|
||||
("StrType1","\x02"),
|
||||
("dialect1", "SMB 2.002\x00"),
|
||||
("StrType2","\x02"),
|
||||
("dialect2", "SMB 2.???\x00"),
|
||||
])
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue