Great Circle Associates Firewalls
(August 1994)
 

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Subject: Re: USENET READERS and a firewall
From: Marcus J Ranum <mjr @ tis . com>
Date: Mon, 29 Aug 94 16:14:06 EDT
To: HIST1A @ Jetson . UH . EDU, firewalls @ GreatCircle . COM

>I'm looking for USENET readers. Which ones are the most secure to work
>in a firewall protected environment?

	Depends on what you mean by secure. :)

	Most news readers don't require privileges to run, and can only
stomp on files owned by the user who is running the program. There exists
the possibility of news readers that might automatically unshar files
or such, which would be easily spoofed into executing a trojan horse.
But that's not a problem that's limited to news readers. In general,
news isn't too much of a threat, unless you're worried about controlling
information flow.

mjr.

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