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Message-ID: <d0c1e6850708271120x49ac6836r5fa734ffe157047b@mail.gmail.com>
Date: Mon, 27 Aug 2007 11:20:17 -0700
From: liquidfish <liquidfish@...il.com>
To: "Niko Lilja" <niko.lilja@...il.com>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: Linux + bash and a silver fork
I hope fork bombs aren't coming as news or a surprise to anyone on this list
as they are neither new nor surprising. Check out limits.conf for a way to
limit the impact of such an attack (restrict the DoS to a single user
account or service rather than the entire system)
On 8/27/07, Niko Lilja <niko.lilja@...il.com> wrote:
>
> Well, as has been said when you realize the truth that there is no spoon,
> but instead there'll be a
> bunch of forks instead, at least in linux on bash shell, tested ubuntu and
> RHEL this far.
>
> By throwing a nice piece of line code as a command in bash shell (normal
> user) you can pretty much
> crash the whole server cause denial of service by giving a command in
> bash:
>
> :() { :&:; } ;:
>
>
> Almost as the ascii would be smiling..
>
> - N
>
>
> _______________________________________________
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