Great Circle Associates Firewalls
(February 1997)
 

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Subject: RE: A Lament (was: A Comment on Content)
From: Anton J Aylward <anton @ the-wire . com>
Date: Mon, 24 Feb 1997 08:04:10 -0500
To: Russ <Russ . Cooper @ RC . on . ca>, firewalls @ GreatCircle . COM
Cc: goertzek @ wangfed . com

At 06:20 PM 23/02/97 -0500, Russ wrote

>I have to believe that Mr. Fir E. Walls must have been trolling for a
>fight when he started this thread.

The evidence supports your assertion.

>Your question focused on how commercial firewall vendors are doing
>bounds checking, and in particular, you said "Firewall software should,
>in my opinion, be checked and certified by the vendor to not have the
>possibility of smashing the stack. This is not expensive and does will
>not ad significantly to the product."
>
>Last time I checked, self-review of your own code did not qualify as
>certification of anything. Independent review, on the other hand, did.

While I agree with much that you go on to say, I have to ask you at this
point,
Becuase self review does no qualify as certification, does this mean that 
you shouldn't do it?

I think not, and I don't think that what you meant.   The vendors should
have both the original team do a review looking out for such blunders, as well
as having their own tiger teams checking as part of their QA process.

I think what Karen was getting at was that all too many don't even practice
this fundamental level of checking.   

To Karen I say....

The evidence supports your assertion


OBTW: Thanks for letting me quote you, K

/anton


--------------------------------------------------------------------------
Anton J Aylward                  | Security is not something that comes in 
The Strahn & Strachan Group Inc  | a self-contained box. It is an attribute 
Information Security Consultants | of how you do business and as such 
Voice: (416) 494-8661            | needs to be managed carefully.
  Fax: (416) 494-8803            |      - Karen Goertzel, Wang Federal Inc.

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