linux-kernel - Registration Weakness in Linux Kernel's Binary formats

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Message-Id: <1159902785.2855.34.camel@goku.staff.locallan>
Date:	Tue, 03 Oct 2006 19:13:05 +0000
From:	SHELLCODE Security Research <GoodFellas@...llcode.com.ar>
To:	undisclosed-recipients:;
Subject: Registration Weakness in Linux Kernel's Binary formats

Hello,
The present document aims to demonstrate a design weakness found in the
handling of simply 
linked   lists   used   to   register   binary   formats   handled   by
Linux   kernel,   and   affects   all   the   kernel families
(2.0/2.2/2.4/2.6), allowing the insertion of infection modules in
kernel space that can be used by malicious users to create infection
tools, for example rootkits.

POC, details and proposed solution at:
English version: http://www.shellcode.com.ar/docz/binfmt-en.pdf
Spanish version: http://www.shellcode.com.ar/docz/binfmt-es.pdf

regards,
--
SHELLCODE Security Research TEAM
GoodFellas@...llcode.com.ar
http://www.shellcode.com.ar

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