Great Circle Associates Firewalls
(June 1997)
 

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Subject: Re: Securing NT Web servers
From: karndt @ mitre . org
Date: Wed, 25 Jun 1997 13:37:29 -0400
To: aub @ sirius . com
Cc: firewalls @ GreatCircle . COM

f.y.i.

A set of security checklists have been developed and are available on a
DISA (Defense Information Systems Agency) Web site at the following URL:

http://spider.osfl.disa.mil/cm/security/check_list/check_list.html

The checklists provide direction on how to determine the exisiting security
configuration, and some information on why a particular configuration
setting has security significance.  The following checklists are available:

Solaris 2.4 Security Checklist
HP-UX 10.X Security Checklist
Microsoft Windows NT 3.51 Security Checklist
SYBASE Security Checklist
Oracle Security Checklist
Informix Security Checklist
DCE Security Checklist
Applictions Security Checklist

I believe that the NT 4.0 security checklist is currently being written.

Kate

>>  Date: Tue, 24 Jun 1997 14:44:39 -0700
>>  From: "Alberto U. Begliomini" <aub @
 sirius .
 com>
>>
>>  I am looking for documentation, articles, and papers on how to make
>>  a NT Web server, sitting on the perimeter network of a firewall, secure.
>>
>>  Also I am looking for tools on NT whose Unix equivalent are Tripwire,
>>  Cops, Swatch, etc.
>>
>>  Basically, I would like to know how people make a NT server as secure as
>>  a Unix server can be made, and which kind of tools are used to notify
>>  the system administrators in case an attacker breaks in.
>>
>>  Any help is greatly appreciated.
>>
>>  Thanks --Alberto
>
>We've been using our Decaf product, which allows you to make any file,
>directory, device, or "directory tree" either read-only or inaccessible
>to any process you want.  This condition is inherited by all the children
>of any such process, and is true no matter what the UID is (i.e., it
>applies to root the same as to other users).
>
>The bad news is that our Solaris 2.4, 2.5.1, and 2.6 (yes, we have the
>2.6 source here) are done, but our NT version is still in production
>for release this summer.  I'll let you know when it's available.
>
>We've used it on the http daemon, inetd, and other network daemons.  We've
>also been using it on login shells to make some users run restricted even
>if they should somehow know root's password or manage to break out of a
>setuid root program into a program of their choosing.
>
>Currently you can't use Decaf to limit access to a port number or to a
>network address or to an interface, so it can't do everything you are
>looking for, but our customers seem pretty happy about it.  Decaf is
>currently being used to protect webservers, firewalls, and network servers.
>I think some people on this list have downloaded it from our webpage,
>but I don't recall seeing any comments about it, either pro or con.
>Any flames anyone?
>
>Also, check with the COAST guys at Purdue.  I was over there a few months
>ago to do a colloquium for Gene Spafford's security group.  Gene took me
>around to show me what they are doing and he mentioned some of the NT
>technology they are working on.  They seem to be emphasizing the intruder
>detection aspects of security, and by now they may have what you are
>looking for.
>
>paul
>
>---------------------------------------------------------
>Paul McNabb                     Argus Systems Group, Inc.
>Vice President and CTO          1809 Woodfield Drive
>mcnabb @
 argus-systems .
 com        Savoy, IL 61874 USA
>TEL 217-355-6308
>FAX 217-355-1433                "Securing the Future"
>---------------------------------------------------------

Kate Arndt
   Lead Engineer and Section Manager, Secure Distributed Computing
   E-mail: karndt @
 mitre .
 org
   Phone:  (703) 883-6821,  FAX: (703) 883-1397
   Wilson Building, Room 2D09

The MITRE Corporation
1820 Dolley Madison Boulevard
McLean, VA  22102-3481
mailstop W423



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