Great Circle Associates Firewalls
(December 1996)
 

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Subject: Re: Vunerabilities in Microsoft's IIS 2.0
From: Patrick Lee <patlee @ panix . com>
Date: Thu, 5 Dec 1996 20:53:18 -0500 (EST)
To: "Joseph L. Moll" <oolid @ acqic . org>
Cc: firewalls @ GreatCircle . COM
In-reply-to: <2 . 2 . 32 . 19961205212237 . 008ff974 @ mail . acqic . org>

On Thu, 5 Dec 1996, Joseph L. Moll wrote:
> We have noticed a little problem with IIS 2.0 and were wondering if the
> problem also exists in IIS 3.0.

IIS 3.0 and 2.0 are essentially the same product. You can download a number
of components (such as Active Server Pages, Index Server, etc.) that
enhance the capability of IIS 2.0 -- thus making it 3.0.

> It seems that anyone can browse the any files in the cgi-bin directory on
> the server.  For example, browse this on your IIS web host:  

Always associate files that are meant to be executed to be executed.  If
*.cgi files are meant to be executable, then by all means make that file
type association.  That way, when a user requests a *.cgi file by name, the
server will try to execute the script instead of sending it back.

Also, _always_ turn off directory browsing.  Why make it any easier for
anyone to snoop around.  Accidents happen and you could leave a file in a
publically accessible directory without knowing it.

> IIS 2.0 in conjunction with M$ Internet Exploder passes the end users
> domain and username to the IIS for access.  Get's logged in the log file
> as DOMAIN\USERNAME.

Read up on the security chapter in the IIS documentation, please.  That's a
feature.  If you don't want it, turn it off.

--
Patrick Lee <pat @
 patlee .
 org> <http://www.patlee.org/>



References:
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From: mdb @ dosmanos . cwiz . com (Martin D. Baldenegro)
Next: Re: Why would someone want an NT firewall?
From: Don Pollock - Omnes - Engineering <pollock @ houston . omnes . net>
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From: oolid @ acqic . org (Joseph L. Moll)
Next: Re: Vunerabilities in Microsoft's IIS 2.0
From: "Leon O'Brien" <leon @ networx . com . au>

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