Messages in this thread | | | Date | Sun, 3 Aug 2003 15:08:22 -0600 | From | Erik Andersen <> | Subject | Re: [PATCH] Allow /dev/{,k}mem to be disabled to prevent kernel from being modified easily |
| |
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-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |