From owner-freebsd-security Sat Sep 8 5:16:59 2001 Delivered-To: freebsd-security@freebsd.org Received: from r220-1.rz.RWTH-Aachen.DE (r220-1.rz.RWTH-Aachen.DE [134.130.3.31]) by hub.freebsd.org (Postfix) with ESMTP id 15B6937B407 for ; Sat, 8 Sep 2001 05:16:56 -0700 (PDT) Received: from r220-1.rz.RWTH-Aachen.DE (relay2.RWTH-Aachen.DE [134.130.3.1]) by r220-1.rz.RWTH-Aachen.DE (8.10.1/8.11.3-2) with ESMTP id f88CGuc07099; Sat, 8 Sep 2001 14:16:56 +0200 (MEST) Received: from kawoserv.kawo2.rwth-aachen.de (root@kawoserv.kawo2.RWTH-Aachen.DE [134.130.180.1]) by r220-1.rz.RWTH-Aachen.DE (8.10.1/8.11.3/5) with ESMTP id f88CGtu07095; Sat, 8 Sep 2001 14:16:56 +0200 (MEST) Received: from fump.kawo2.rwth-aachen.de (root@fump.kawo2.rwth-aachen.de [134.130.181.148]) by kawoserv.kawo2.rwth-aachen.de (8.9.3/8.9.3) with ESMTP id OAA16348; Sat, 8 Sep 2001 14:16:54 +0200 Received: (from alex@localhost) by fump.kawo2.rwth-aachen.de (8.11.3/8.11.3) id f88CH1d53754; Sat, 8 Sep 2001 14:17:02 +0200 (CEST) (envelope-from alex) Date: Sat, 8 Sep 2001 14:17:00 +0200 From: Alexander Langer To: D J Hawkey Jr Cc: deepak@ai.net, freebsd-security@FreeBSD.ORG Subject: Re: Kernel-loadable Root Kits Message-ID: <20010908141700.A53738@fump.kawo2.rwth-aachen.de> References: <200109081052.f88AqRG30016@sheol.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <200109081052.f88AqRG30016@sheol.localdomain>; from hawkeyd@visi.com on Sat, Sep 08, 2001 at 05:52:27AM -0500 X-PGP-Fingerprint: 44 28 CA 4C 46 5B D3 A8 A8 E3 BA F3 4E 60 7D 7F X-PGP-at: finger alex@big.endian.de X-Verwirrung: Dieser Header dient der allgemeinen Verwirrung. Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Thus spake D J Hawkey Jr (hawkeyd@visi.com): > If you're dealing with a "fixed purpose" server, the kernel may not > need any KLD. On two of my servers, only blank_saver.ko is loaded, > and that could be eliminated too, by not using a screensaver. This still lets you load own kernel modules. And from what I've heard, there are also ways to load kernel modules if securelevel > 1, though I can't imagine, how. Alex To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message