From: "David S. Miller" <davem@redhat.com>
To: Gandalf The White <gandalf@digital.net>
Cc: netdev@oss.sgi.com
Subject: Re: Fragmentation Attack
Date: Sun, 8 Feb 2004 12:45:28 -0800 [thread overview]
Message-ID: <20040208124528.2c667378.davem@redhat.com> (raw)
In-Reply-To: <BC4A83EB.E263%gandalf@digital.net>
On Sat, 07 Feb 2004 12:00:42 -0600
Gandalf The White <gandalf@digital.net> wrote:
> The requirements of the attack (from the perspective of the paper I wrote)
> was that you had taken over 20 cable modem computers. From this viewpoint
> this could (of course) produce the required number of packets IMHO.
>
> Of course you could also clog up the bandwidth of just about any destination
> network with this requirement, but that is a different DoS.
Yes, but this very fact makes the "DoS" much much less interesting.
If I can clog your link anyways with arbitrary traffic, who cares
what it does as a second order effect, the machine is made unreachable
and unusable either way.
Also, these half-complete ICMP packets are really super easy to create
firewall rules for to block them at ingress of a major site.
next prev parent reply other threads:[~2004-02-08 20:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-07 17:36 Fragmentation Attack Gandalf The White
2004-02-07 17:45 ` David S. Miller
2004-02-07 18:00 ` Gandalf The White
2004-02-08 20:45 ` David S. Miller [this message]
2004-02-08 21:12 ` Gandalf The White
2004-02-08 21:18 ` David S. Miller
2004-02-12 2:20 ` Gandalf The White
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