full-disclosure - Re: Ubuntu 11.10 now unsecure by default

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Message-ID: <9a8ee0a5ec1c735030e46f670673062e.squirrel@fbi.dhs.org>
Date: Fri, 18 Nov 2011 05:46:55 -0500 (EST)
From: "Larry W. Cashdollar" <bugs@....dhs.org>
To: Valdis.Kletnieks@...edu
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: Ubuntu 11.10 now unsecure by default

Anyone know what the default is for Ubuntu 11

PermitEmptyPasswords no
PasswordAuthentication no

in /etc/ssh/sshd_config?

> On Thu, 17 Nov 2011 18:50:12 +0100, Mario Vilas said:
>> The guest account has no password, but it's not possible to login
>> remotely
>> with ssh.
>
> Well.. out of the box, anyhow.
>
> The problem is that if you install Ubuntu on a server (as lots of people
> do)
> and enable ssh so you can remotely admin the server, you can find yourself
> shot
> in the foot if you don't realize there's a passwordless guest account.
>
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