Subject: Re: perms of /sbin/dump
To: Wenchi Liao <wliao@midway.uchicago.edu>
From: Manuel Bouyer <bouyer@antioche.lip6.fr>
List: netbsd-help
Date: 06/28/1999 19:16:20
On Mon, Jun 28, 1999 at 11:04:04AM -0500, Wenchi Liao wrote:
> I'm setting up a NetBSD 1.4 box for amanda backups, and I'm
> curious about a permissions thing. I'm using default
> install sets, so the permissions should be default as
> well.
> 
> The disk devices are owner and group readable
> 
>     # ls -l /dev/rwd0a 
>     crw-r-----  1 root  operator  3, 0 Jun  8 04:31 /dev/rwd0a
> 
> while /sbin/dump is
> 
>     -r-xr-sr-x  2 root  tty  241664 May  7 13:08 /sbin/dump
> 
> So: unless the dumper is root, doesn't the g+s keep a
> legitimate user (belonging to operator group) from making
> dumps?

No, the process started still belongs to group operator, so it should works.
At last it does in 1.3.3.

--
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
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