Re: Linux 2.4.27 SECURITY BUG - TCP Local and REMOTE(verified) Denialof Service Attack

From: Paul Jakma
Date: Tue Sep 14 2004 - 10:09:35 EST


On Mon, 13 Sep 2004, Ville Hallivuori wrote:

Actually you can treat TCP session failure as transient error. Just use BGP graceful restart (witch basically allows re-opening TCP connection without losing routing tables).

http://www.ietf.org/internet-drafts/draft-ietf-idr-restart-10.txt

Hmm, yes, I hadnt thought of the attack-mitigating aspects of graceful restart. Though, without other measures, the session is still is open to abuse (send RST every second).

regards,
--
Paul Jakma paul@xxxxxxxx paul@xxxxxxxxx Key ID: 64A2FF6A
Fortune:
Wit, n.:
The salt with which the American Humorist spoils his cookery
... by leaving it out.
-- Ambrose Bierce, "The Devil's Dictionary"
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