full-disclosure - Re: Automated SSH login attempts?

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Message-ID: <4109395D.60802@stwing.org>
From: dmargoli at stwing.org (dmargoli@...ing.org)
Subject: Re: Automated SSH login attempts?

Stefan Janecek wrote:

> This does not seem to be a stupid brute force attack, as there is only
> one login attempt per user. Could it be that the tool tries to exploit
> some vulnerability in the sshd, and just tries to look harmless by using
> 'test' and 'guest' as usernames?
> 
> The compromised machine was running an old debian woody installation
> which had not been upgraded for at least one year, the sshd version
> string says 'OpenSSH_3.6.1p2 Debian 1:3.6.1p2-10'

Does the Debian machine that was compromised have a ``test'' or 
``guest'' username?

Also, if it wasn't patched in a year, it may still be vulnerable to 
this: http://www.cert.org/advisories/CA-2003-24.html

I would tend to think this isn't a 0day kinda vuln, as if it were, he'd 
be a lot more successful than he seems (unless we're all rooted and 
don't even know it). But who can tell?