Great Circle Associates Firewalls
(February 1996)
 

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Subject: Re: Most Secure Unix?
From: Stephen Schaefer - Network Computing Solutions <stephen . schaefer @ imonics . com>
Date: Thu, 8 Feb 1996 12:51:27 -0500
To: firewalls @ GreatCircle . COM
In-reply-to: <9602081105 . AA12965 @ spibm02> (message from Rolf Weber on Thu, 8 Feb 1996 12:05:46 +0100 (MEZ))

>>[Jon Spencer]
>> I think perhaps my point wasn't made clearly.  The firewall can only be as
>> good as the OS on which it exists.  If your firewall is an application
>> on top of an OS, I can break the firewall by breaking the OS.
>> 
>[Rolf Weber]
>i never heard of any breakin possible because of a kernel bug.
>may be i'm wrong, may be it's possible, but i cannot imagine.

The context here seems to be ``break in using only the net'', and thus
the following example may be deemed disallowable, but the last statement
immediately brings to my mind the symbolic-link-to-suid-shell-script bug.

	- Stephen


References:
Indexed By Date Previous: RE: ipx routing
From: Craig McLellan <mclelcl @ onto . network . com>
Next: Re: Mandatory protection (was: product selection)
From: Rick Smith <smith @ sctc . com>
Indexed By Thread Previous: Re: Most Secure Unix?
From: Rolf Weber <weber @ iez . com>
Next: Re: Most Secure Unix?
From: D . Thomas @ vthrc . uq . edu . au (Danny Thomas)

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