Great Circle Associates Firewalls
(November 1995)
 

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Subject: FW: Windows NT holes and Lotus Notes holes (fwd)
From: Chris Brenton <chris . brenton @ newsedge . com>
Date: Tue, 28 Nov 1995 12:17:57 -0500
To: "'firewalls @ greatcircle . com'" <firewalls @ greatcircle . com>

John O'Sullivan wrote:

>One hole in the outside occurs if you use the FTP server that ships with NT. 
> Even if you make the Sub directory the FTP dir a user can cd / to the root. 

Is the access read only or read write?

>If you want to secure a server one easy way is to add to or more cards to 
>the server and we assume that one card is the "secure" (outside) card and 
>the other "unsecure" (inside) card.  On the outside card unbind  all network 
>components except TCP/IP.  Get rid of server and workstation
>This will allow only TCP/IP  socket apps Mail, HTTP, etc
>on the other side "inside" users still have access to the server as they 
>normally would.

I have yet to see an NT server that can be completely shut down for services. I've tried shutting off files sharing, domain services, etc. and still can't get the ! @
 #$% thing to stop broadcasting services on ports 137 & 138. If anyone has had luck with this, I would love to hear how.



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