Re: unsafe file permissions on /usr/bin/login

Manuel Bouyer <[email protected]> Wed, 28 Nov 2018 18:07:08 +0100
Newsgroups gmane.os.netbsd.devel.security
Message-ID <[email protected]>
On Wed, Nov 28, 2018 at 09:51:10AM -0500, JP wrote:
> The suid bit is set on the /usr/bin/login binary.  This results in the
> system being susceptible to a manual (login) attack on user accounts
> (including root).  An attack can be initiated by any user with a shell.
> (Also, consider a system with no root password - my preferred)

Actually it won't allow root login, I just checked it (because it's not
run from a terminal marked secure in /etc/ttys I guess).
It allows you to login as another, non-root user - much like su(1).
I can't see why it would be worse than su.

-- 
Manuel Bouyer <[email protected]>
     NetBSD: 26 ans d'experience feront toujours la difference
--