Vulnerability Development mailing list archives

Re: Covert Channels


From: Blue Boar <BlueBoar () thievco com>
Date: Wed, 23 Oct 2002 10:28:51 -0700

Jose Nazario wrote:
for the reasons clearly stated by several bright individuals on this topic
previously, any product which claims to detect and defeat covert channels
on a network (or even a multiuser system) is snake oil.

No more than an IDS vendor. An IDS does not stop, or even detect, all intrusions. A covert channel detector would be the same thing (and would probably just be an IDS add-on.) That is, it would detect known covert channel methods, might have some logic to detect some possible unknown attempts. It would have frequent signature updates, etc... you know the drill.

If someone thinks an IDS is useful (and I'm not trying to say they aren't) then there is no reason to think a covert channel detector wouldn't be useful for the same reason.

                                                BB


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