ASP.NET Vulnerability

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Looks like the consensus is that no version of IIS protects you from this vulnerability. If you have an ASP.NET application, and you rely on Url authorization ( sections), you need to fix your application ASAP.

The fix is very simple - it's a few lines of code that reject requests that have backslashes or are not in canonical form. Here is the knowledge base article that you should read that provides the fix.

Get to it, folks!


Posted Oct 07 2004, 12:37 PM by keith-brown
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Comments

Brian Goldfarb wrote re: ASP.NET Vulnerability
on 10-07-2004 7:57 PM
Also be sure the check out http://www.microsoft.com/security/incident/aspnet.mspx
We have posted an HTTP Module wrapped in an MSI installer where you can update an entire server with just one click -- also KB guidance. The landing page is the central repository of information and we are continually updating it as new resources and information becomes available.
Girish Bharadwaj wrote Update on ASP.NET Vulnerability
on 10-07-2004 8:59 PM