Date: Sun, 12 Sep 2004 19:47:57 +0300
From: Petri Kaukasoina <kaukasoi@elektroni.ee.tut.fi>
To: Wolfpaw - Dale Corse <admin@wolfpaw.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Linux 2.4.27 SECURITY BUG - TCP Local and REMOTE(verified) Denial of Service Attack
Message-ID: <20040912164757.GA947@elektroni.ee.tut.fi>
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On Sun, Sep 12, 2004 at 09:45:38AM -0600, Wolfpaw - Dale Corse wrote:
>  No problem :) I run the following, against SSH as the target, and I
> can also kill it. (using telnet as the other side of the attack)
> 
> root@maximus:/home/admin# telnet XXXXXXXXXXXXXXX 22
> Trying XXXXXXXXXXXXXX...
> Connected to XXXXXXXXXXXXXXXXX.
> Escape character is '^]'.
> Connection closed by foreign host.
> root@maximus:/home/admin# 

> Now.. Do you really want me to post the source code for it? 

With default sshd_config you can DOS sshd trivially by opening ten
connections using ten times "telnet XXXXXXXXXXXXXXX 22".
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