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Date:      Mon, 18 May 1998 05:52:15 +0000 (GMT)
From:      marc@sniff.ct-net.de
To:        sysadmin@mfn.org (J.A. Terranson)
Cc:        Secure-NT@wwa.com, freebsd-questions@FreeBSD.ORG
Subject:   Re: [Secure-NT] Somewhat off-topic: Port 54 DNS Queries???
Message-ID:  <199805180552.FAA00628@home.sniff.ct-net.de>
In-Reply-To: <01BD81D3.5C8F7530@w3svcs.mfn.org> from "J.A. Terranson" at "May 17, 98 08:35:36 pm"

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Hello!

Sounds like the teardrop2 attack that was reported on some lists,
in the press and in a CERT advisory. The one shutting off so many
university-, nasa- and goverment-sites.
Because these packets seem to be DNS traffic, they even slip through
many "firewalls" and kill Win95/NT boxes without the appropriate hotfix.

Are the packets fragmented? That should be an indication for this
kind of attack.

Regards, Marc


> We have recently been rejecting a *ton* of udp packets from port 54
> that purport to be DNS queries.  Does anyone know what's going on
> here?
> 
> TIA
> 
> J.A. Terranson
> sysadmin@mfn.org
-- 
Marc Binderberger                             97076 Wuerzburg, Germany
marc@sniff.ct-net.de                          Powered by FreeBSD ;-)

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