RE: [fw-wiz] Stanford break in

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To: Victor Williams <vbwilliams@essvote.net>
Date: Thu, 22 Apr 2004 19:58:11 -0400 (EDT)

On Thu, 22 Apr 2004, Victor Williams wrote:

> I'm still wondering why anyone would put their password file in plain view
> of anyone that logs in...but maybe I missed something...
>
> Sticky bits and chmod/chown are your friend. It's a pretty trivial deal to
> lock someone in a chmod "jail" on any Unix-like OS current within the last 8
> years. They've even got filesystem and directory level ACLs now! My advice
> to anyone is "use them...liberally."

locking someone's account from reading the /etc/passwd file prevents login
from doing the thing it does, and thus the user is prevented from gaining
access. Chroot'ing them to a jail is not too tough a task, but, then the
user won't accomplish too much work on the system without great efforts
being extended. An Os these days lacking a shadow/passwd setup is vastly
behind the times. TCB is not for everyone and every situation.

Thanks,

Ron DuFresne

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