Messages in this thread | | | Date | Thu, 10 Dec 1998 09:07:04 +0700 | From | Agus Budy Wuysang <> | Subject | Re: Linux login security approaches |
| |
Wesley Morgan wrote: > > On Tue, 8 Dec 1998, Neil Conway wrote: > > > Jeez, wrong on both counts. No-one needs to replace /bin/login, simply > > print a message to the screen saying "Linux blah \n login:" and then > > wait for someone to take the bait. > > > > Secondly, NT's C-A-D requirement DOES prevent this, and thus DOES add > > security, AND to make things better, I don't see how it makes life any > > harder for users - it's just some keys you press to get a login screen. > > This whole argument is stupid... If you have access to the console then > chances are you don't need the root password to get root. Bring out your > handy floppy disk and manually edit /etc/shadow or whatever you want. The > attack couldn't be done remotely by any means. If you are Joe
Why floppy?
LILO: linux init=/bin/bash
will do it faster :)
> Administrator and dumb enough to let someone log onto the console who > might run a program like that, you deserve to get hacked wide open. I'm no > expert on the subject, but wouldn't it be nearly impossible to completely > disguise the fact that it wasn't really a login running on a getty?
No, you disguise the *getty output screen, to appear just like the real one, save the whatever user typed in, call/exec the real getty later on...
> Regardless, I seriously doubt any OS is so secure you can allow open > access to the console and not worry about it (of course you can always > physically secure the actual case but lets not argue about this forever).
-- +---| Netscape Communicator 4.x |---| Powered by Linux 2.1.x |---+ |/v\ Agus Budy Wuysang MIS Department | | | Phone: +62-21-344-1316 ext 317 GSM: +62-816-1972-051 | +--------| http://www.rad.net.id/users/personal/s/supes |--------+ -----BEGIN GEEK CODE BLOCK----- Version: 3.1 GCS/IT dx s: a- C+++ UL++++$ P- L+++(++++) E--- W++ N+++ o? K? w-- O- M- V-- PS+ PE Y-- PGP t+@ 5 X+ R- tv- b+ DI? D++(+) G e++ h* r+ y++ ------END GEEK CODE BLOCK------
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |