Full Disclosure mailing list archives
Re: Linux + bash and a silver fork
From: liquidfish <liquidfish () gmail com>
Date: Mon, 27 Aug 2007 11:20:17 -0700
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 () gmail 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/
_______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Linux + bash and a silver fork Niko Lilja (Aug 27)
- Re: Linux + bash and a silver fork Thomas Coppi (Aug 27)
- Re: Linux + bash and a silver fork Riad S. Wahby (Aug 27)
- Re: Linux + bash and a silver fork liquidfish (Aug 27)
- Re: Linux + bash and a silver fork Harry Hoffman (Aug 27)
- Re: Linux + bash and a silver fork Nico Golde (Aug 27)