full-disclosure - Re: Linux + bash and a silver fork

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

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
>
>
> _______________________________________________
> Full-Disclosure - We believe in it.
> Charter: http://lists.grok.org.uk/full-disclosure-charter.html
> Hosted and sponsored by Secunia - http://secunia.com/
>

Content of type "text/html" skipped

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/