| 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
| ||
|
Message-ID: <82pqz7tc3v.fsf@mid.bfk.de> Date: Thu, 01 Jul 2010 16:12:36 +0000 From: Florian Weimer <fweimer@....de> To: "Dobbins\, Roland" <rdobbins@...or.net> Cc: "full-disclosure@...ts.grok.org.uk" <full-disclosure@...ts.grok.org.uk> Subject: Re: Should nmap cause a DoS on cisco routers? * Roland Dobbins: > On Jul 1, 2010, at 5:23 PM, Thierry Zoller wrote: > >> If a device crashes when being scanned - it's a vulnerability. > > It sounds to me as if what happened was that he ended up driving the > CPUs of the devices in question to 100%, and they stopped handling > control-plane traffic and fell over. There are infrastructure > self-protection best current practices (BCPs) which can be deployed > to defend against infrastructure-targeted DoS. Not necessarily. Fingerprinting is known to crash tons of devices. And it's certainly a bug worth fixing. Many shops write their own scripts to gather statistics from networking devices, and it's really annoying when those scripts bring down devices (be it due to brittle protocol parsers, or memory leaks in the server code). -- Florian Weimer <fweimer@....de> BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100 tel: +49-721-96201-1 D-76133 Karlsruhe fax: +49-721-96201-99 _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Powered by blists - more mailing lists