Re: Evil Cookies.

From: Tim Adam (tmaat_private)
Date: Tue Feb 08 2000 - 15:11:40 PST

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    Dylan Griffiths wrote:
    > Thomas Reinke wrote:
    > > There is no easy patch to this problem. The only solution I
    > > can think of, which is not an easy one, would be to have browsers
    > > have intimate knowledge of what constitutes an organization's
    > > "domain of influence", and limit cookies accordingly. This
    > > is essentially impossible to implement.
    >
    > > (Consider  domain.city.state.country - where is the allowable
    > > domain of influence here? Probably 4 levels deep, but how
    > > to indicate this to the browser).
    >
    > Perhaps this would be an exercise best left up to the user, as there is
    > currently no way to indicate the scope of the authority (harmless TLD,
    > country, normal domain, etc) in the DNS system.
    
    A similar problem existed in WPAD (Web Proxy Auto-Discovery)
    for IE 5.0: see MS Security Bulletin MS99-054 at
    http://www.microsoft.com/technet/security/bulletin/ms99-054.asp
    
    The browser was walking up the DNS hierarchy looking for the name wpad,
    in some cases making queries outside the organization's trust boundary.
    
    Tim.
    --
    Tim Adam  Tim.Adamat_private     http://www.osa.com
    Software Development Engineer   Phone: +61 3 9895 2199
    Open Software Associates Ltd.   Box Hill VIC Australia
     Proven Solution Deployment for the Global Enterprise
    



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