bugtraq - Re: Linux Kernel 2.6.x PRCTL Core Dump Handling -- Simple workaround

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Message-ID: <Pine.LNX.4.64.0607142034120.26610@oceanic.wsisiz.edu.pl>
Date: Fri, 14 Jul 2006 20:36:00 +0200 (CEST)
From: Lukasz Trabinski <lukasz@...siz.edu.pl>
To: Caveo Internet BV - Security <security@...eo.nl>
Cc: bugtraq@...urityfocus.com
Subject: Re: Linux Kernel 2.6.x PRCTL Core Dump Handling -- Simple workaround

On Fri, 14 Jul 2006, Caveo Internet BV - Security wrote:

> The most easy way to stop this vulnerability is this by sepcifying the core
> dump location
>
> echo /root/core > /proc/sys/kernel/core_pattern
>
> This specifies /root as core dump location which makes it unavailable for
> the local user.

Better solution add  line to /etc/limits.conf

*               hard    core    0

and set pam_limits in pam services.

-- 
*[ Łukasz Trąbiński ]*
SysAdmin @wsisiz.edu.pl