From: Erik Andersen <andersen@codepoet.org>
To: bert hubert <ahu@ds9a.nl>,
linux-kernel@vger.kernel.org, akpm@osdl.org, devik@cdi.cz
Subject: Re: [PATCH] Allow /dev/{,k}mem to be disabled to prevent kernel from being modified easily
Date: Sun, 3 Aug 2003 15:08:22 -0600 [thread overview]
Message-ID: <20030803210821.GA17710@codepoet.org> (raw)
In-Reply-To: <20030803180950.GA11575@outpost.ds9a.nl>
On Sun Aug 03, 2003 at 08:09:50PM +0200, bert hubert wrote:
> Greetings,
>
> After being gloriously rootkitted with a program coded by HTB author Martin
> Devera (lots of thanks, devik, your work is appreciated, I suggest you read
> up about Oppenheimer when disclaiming that you are 'just a coder'. The item
> to google on is: "ethics sweetness hydrogen bomb Oppenheimer"), I wrote
> a patch to disable /dev/kmem and /dev/mem, which is harmless on servers
> without X.
>
> It blocks attempts by rootkits, such as devik's SucKIT, to hide themselves.
Until the rootkit, already running as root, loads stuff as a
kernel module... Perhaps you should make this enforce that
people have CONFIG_MODULES=n,
-Erik
--
Erik B. Andersen http://codepoet-consulting.com/
--This message was written using 73% post-consumer electrons--
next prev parent reply other threads:[~2003-08-03 21:10 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-03 18:09 [PATCH] Allow /dev/{,k}mem to be disabled to prevent kernel from being modified easily bert hubert
2003-08-03 19:11 ` Willy Tarreau
2003-08-03 19:18 ` bert hubert
2003-08-03 20:26 ` Willy Tarreau
2003-08-03 21:37 ` Andries Brouwer
2003-08-03 19:32 ` Andrew Morton
2003-08-03 20:45 ` bert hubert
2003-08-03 20:52 ` Wichert Akkerman
2003-08-03 21:00 ` Andrew Morton
2003-08-03 21:33 ` David Lang
2003-08-03 21:47 ` bert hubert
2003-08-04 13:10 ` Alan Cox
2003-08-03 20:14 ` Matan Ziv-Av
2003-08-03 21:02 ` Alan Cox
2003-08-03 21:08 ` Erik Andersen [this message]
2003-08-04 12:30 ` eliezer
2003-08-04 9:37 ` devik
2003-08-04 13:46 ` bert hubert
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