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Re: WASC-Articles: 'DOM Based Cross Site Scripting or XSS of the Third Kind: A look at an overlooked flavor of XSS'
From: Tom Gallagher <tom () SecurityBugHunter com>
Date: Mon, 11 Jul 2005 14:51:10 -0400

Nice write up. I think it is worth noting that this problem also impacts local
HTML content.  For example, help files installed by programs to the local hard
disk.  HTML content isn't just html files, but also CHM files and binaries
containing an HTML resource. Not many people pen-test local files for XSS, but this can allow an attacker to elevate privilege into the My Computer zone. This
attack is documented in Writing Secure Code 2nd Ed. pp418-420.

XSS bugs caused by client side script is often referred to as "Local XSS".

Tom

Quoting contact () webappsec org:

The Web Application Security Consortium is proud to present 'DOM Based Cross Site Scripting or XSS of the Third Kind: A look at an overlooked flavor of XSS ' written by Amit Klein. In this article Amit focuses on a little known variant of Cross Site Scripting which attacks a user's client without
sending malicious content to the web server.


This document can be found at http://www.webappsec.org/projects/articles/071105.shtml .

Regards,

- Robert Auger

articles_at_webappsec.org
http://www.webappsec.org

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