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RE: OWASP Top Ten - why taxing taxonomies?
From: "Evans, Arian" <Arian.Evans () fishnetsecurity com>
Date: Wed, 13 Jul 2005 19:02:00 -0500

There's many reasons but the short answer I'll give is:

I organize my report data in this fashion because:

1. Root cause analysis.

2. The CISO using the data can clearly see that OWASP T10 #10
issues go to the web server admins and #T4 issues go to the
presentation layer developers and #T1 issues go to the business
logic guys.

3. Who cares about XSS?

If you strongly type your data and make intelligent decisions
about output encoding it's unlikely to be an issue.

People will spend weeks going on an XSS bughunt and miss a
few characters that still let one do XSS, or we could spend
the same two weeks implement strong presentation I/O handling
and kill many birds with one stone.

YMMV, of course. Whatever works for you...

-ae

-----Original Message-----
From: Frank O'Dwyer [mailto:fod () littlecatZ com] 
Sent: Wednesday, July 13, 2005 4:14 PM
To: Evans, Arian
Cc: Ralf Durkee; Mark Curphey; webappsec () securityfocus com; 
Jeff Williams
Subject: Re: OWASP Top Ten - taxing taxonomies

Evans, Arian wrote:

[...]

Here's three elements I use in distinction in my Taxonomy of 
'Issues':
Class, Category, Particular, e.g.--

Class--programmatic
Category--input validation (or output encoding)
Particular--XSS 
 

I know I am going to regret asking this, but what would 
anyone use this
for? Also what makes you think these things fit into a 
hierarchy at all,
never mind an objective one? There are any number of ways to 
categorise
these things. They have a habit of belonging in more than one 
category, too.

This really doesn't strike me as any more compelling than the folders
you might use to file your email or documents in. Very useful for you
maybe, but probably nobody else would find their way around 
it. That is
why these things always wind up up having multiple views and 
a 'search'
button.

Cheers,
Frank




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