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Re: [WEB SECURITY] Re: SECNICHE : Dwelling Security is On the Run
From: "James Landis" <jcl24 () cornell edu>
Date: Fri, 15 Jun 2007 19:45:58 -0400

While I generally agree with your assessment of the self-aggrandizing
nature of Aditya's posts, I would argue that "Double Trap" XSS is at
least academically interesting. It can defeat even a perfect filter
designed to catch only a single valid instance of script tags in user
input.

I say academically because attempting to do input filtering to stop
XSS is a horrible approach; anyone attempting to write input filters
to catch the infinite permutations of executable markup and myriad
encodings thereof is wasting his time.

-j

On 6/15/07, Michal Zalewski <lcamtuf () dione ids pl> wrote:
On Tue, 12 Jun 2007 dcdave () att net wrote:

In an admittedly brief review of this page, I saw nothing useful or
informative to my career in information assurance.

Aditya has a history of using security mailing lists to advertise
his various security consulting projects (metaeye.org, etc) under the
guise of fairly bogus whitepapers and vulnerability reports:

http://portal.spidynamics.com/blogs/jeff/archive/2007/04/16/ASP.NET-encoding-shortcomings-_2800_review-of-MetaEye-analysis_2900_.aspx
http://www.webappsec.org/lists/websecurity/archive/2007-03/msg00079.html
http://www.webappsec.org/lists/websecurity/archive/2007-03/msg00115.html

As a rule, these claim to discuss cutting-edge attack techniques whilist
in fact describing something remarkably mundane (register_globals as
"Global Space Exploitation", form-based XSS as "Double Trap Attacks").

I would advise WEBSECURITY moderators to exercise... well, moderation in
approving his non-advisory posts:

http://www.webappsec.org/lists/websecurity/archive/2007-06/msg00010.html
http://www.webappsec.org/lists/websecurity/archive/2007-06/msg00019.html

/mz


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