[31469] in bugtraq
Re: 11 years of inetd default insecurity?
daemon@ATHENA.MIT.EDU (Paul Szabo)
Mon Sep 8 15:19:28 2003
Date: Mon, 8 Sep 2003 10:26:24 +1000 (EST)
From: psz@maths.usyd.edu.au (Paul Szabo)
Message-Id: <200309080026.h880QOc114306@milan.maths.usyd.edu.au>
To: 3APA3A@SECURITY.NNOV.RU, bugtraq@securityfocus.com
3APA3A <3APA3A@SECURITY.NNOV.RU> wrote:
> III. Details
>
> Inetd has an option
> -R rate ... default is 256 ...
> ... if more than 256 connections received in one minute [inetd] will
> disable service for next 10 minutes ...
> ... IP address of attacker will never be logged.
>
> IV. Workaround
>
> -R 0 -s your_ad_can_be_here
I guess you are trying to say that xinetd is more configurable than inetd.
Yes, it is known that with inetd you need tcp_wrappers to log attack IPs.
Your cure is worse than the disease: rate limiting allows a DoS against the
service, no limit allows a DoS against the whole machine.
Cheers,
Paul Szabo - psz@maths.usyd.edu.au http://www.maths.usyd.edu.au:8000/u/psz/
School of Mathematics and Statistics University of Sydney 2006 Australia
