Re: ASP.Net vulnerability

From: Brett Hill (brett_at_IISANSWERS.COM)
Date: 10/07/04

  • Next message: Martin Viktora: "Disclosure policy in Re: RealPlayer vulnerabilities" 
    Date:         Thu, 7 Oct 2004 09:34:01 -0600
To: NTBUGTRAQ@LISTSERV.NTBUGTRAQ.COM

    BugTraqers,

    There was lively discussion about the ASP.net vulnerability on the IIS
    discussion lists at iislists.com yesterday. I've had conversations with IIS
    support and the IIS team. The nut of it is that that all ASP.net
    applications need to be modified per the instructions immediately.

    Regardless of what you may read elsewhere, the update needs to be applied
    regardless of the type of authentication used in the asp.net application.
    The modifications Microsoft published are not a best practice or a
    suggestion - but an essential security fix to put in place till an update to
    asp.net is prepared. Disabling parent paths will not solve the problem and
    I'm guessing that URLScan is not a complete solution either.

    The only exception I know about is if you aren't using asp.net. In other
    words, if you are only delivering static pages or classic asp, then you're
    not at risk as the request has to be handled by the asp.net ISAPI. However
    any website delivering ASP.net content needs to be updated ASAP.

    Brett Hill
    IIS MVP
    IIStraining.com 

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  • Next message: Martin Viktora: "Disclosure policy in Re: RealPlayer vulnerabilities"

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