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Re: GET and POST Methods Accepted

Subject: Re: GET and POST Methods Accepted
Date: Mon, 17 Oct 2005 21:03:38 -0400 (EDT)
On Wed, 12 Oct 2005, Welsh, Ed wrote:

Web sites are allowing a switch in method for requests and still processing 
the input.  I have been
able to analyze a site login form which is specified to use POST method and 
craft a URL (GET of
course) that the web server will still accept and process.  If the site will 
accept the GET method for
form data and is vulnerable to XSS, the attack surface greatly increases over 
a site that is
vulnerable to XSS but only accepts the POST method.  POST is still 
attackable, but it becomes more
complicated than simply emailing a link.

Its easier for folks to copy direct links when params can be passed via 
GET, however, to your point, it would be much safer to permit such a thing 
if modsecurity is running.

---
Paul Laudanski, Microsoft MVP Windows-Security
http://castlecops.com - http://wiki.castlecops.com

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