Re: Nifty Security hole on Several NT Based Web Servers

From: nitin (nitinat_private)
Date: Fri Jan 09 1998 - 11:27:47 PST

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    We have been made aware of the problem last week (or early this week).
    We are planning to put out a patch for Enterprise 3.0 and Fasttrack 3.01 on
    NT.
    The patch is being built/verified currently and should be available soon.
    
    -Nitin
    
    Aleph One wrote:
    
    > ---------- Forwarded message ----------
    > Date: Thu, 8 Jan 1998 21:28:06 -0700
    > From: Marc Slemko <marcsat_private>
    > To: NTBUGTRAQat_private
    > Subject: Re: Nifty Security hole on Several NT Based Web Servers
    >
    > On Thu, 8 Jan 1998, Greg Skafte wrote:
    >
    > > A collegue of mine discovered a very interesting bug in several Web
    > > server packages.  if you protect a file that is not 8.3 in its makeup
    > > you can often access the canonical name without restriction. EG:
    > >
    > > if a file named  "somelongfile.htm"  and you protect it then you can
    > > access somef~1.htm  if somel~1.htm is the canonical name. (don't recall
    > > the corect NT term). This also applies to directory names as well.
    > >
    > > We have notified some of the affected vendors but haven't tested all
    > > the various NT Web servers.
    >
    > Microsoft and Netscape have been contacted.
    >
    > Netscape has apparently ignored me.  Well, either that or they don't like
    > giving feedback despite the fact that I specifically asked for it and that
    > once one vendor posts a patch, it is known for all servers.
    >
    > Microsoft has responded quickly and very well with excellent feedback and
    > is working on a fix that should be available soon.  Last I knew, the rough
    > plan was early next week, however that shouldn't be taken as anything
    > official and may change now that this information has been prematurely
    > posted.
    >
    > This information was not supposed to be posted publicly until vendors had
    > a week or so to make up a fix.  Unfortunately, it's too late for that now.
    >
    > >
    > > Know to be affected are IIS 4.0, Netscape Enterprise 3.0x and Website
    > > Pro don't recall the version.
    >
    > No.  Website Pro is not impacted, at least in recent versions.  It detects
    > the attempt and explicitly denies attempts to acccess the short name.
    



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