[28591] in bugtraq

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Re: TRACE used to increase the dangerous of XSS.

daemon@ATHENA.MIT.EDU (Jeremiah Grossman)
Thu Jan 23 15:50:51 2003

From: Jeremiah Grossman <jeremiah@whitehatsec.com>
To: Doug Monroe <doug@planetconnect.com>
In-Reply-To: <3E2F5345.9A9D977A@planetconnect.com>
Content-Type: text/plain
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Date: 22 Jan 2003 18:41:18 -0800
Message-Id: <1043289685.1349.661.camel@localhost.localdomain>
Mime-Version: 1.0


On Wed, 2003-01-22 at 18:28, Doug Monroe wrote:
> Jeremiah Grossman wrote:
> > 
> > WhiteHat Security has released a new white paper discussing a new class
> > of web-app-sec attack (XST) which potentially affects all web servers
> > supporting TRACE.
> 
> thanks for the interesting findings. 
> Respectfully- the apache solution proposed by RFP in the "Server Specific
> Recommendation" might alternatively be crafted as:
>   RewriteEngine on
>   RewriteCond %{REQUEST_METHOD}  !^(GET|POST)$
>   RewriteRule .* - [F]
> 


Cool, that should lock down strange HTTP request methods nicely. We
tried something similar on ISS/Exchange and it turned off some
functionality.

Careful using this type of method if your using Application Servers
which depend on request method other than GET or POST.




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