Re: Bug#274229: System accounts with valid shells
Simon McVittie <firstname.lastname@example.org> writes:
> I wonder whether noninteractive su to drop privileges from root to a
> system account (in maintainer scripts, etc.) should be discouraged
> altogether, in favour of something with argv rather than shell
> semantics, like sudo/chrootuid? You can always get back from argv-based
> to to shell-based semantics by using "sh -c '<command>'" as the final
> arguments, if you really need shell command-line parsing.
I've been using setuidgid from daemontools for this for years because su
is much too heavy-weight and kept doing things I didn't want it to do.
Now, setuidgid might be *too* lightweight -- for example, running the PAM
session stack may still be appropriate so that pam_limits happens -- but
it would be nice to get something like this into util-linux or some
Russ Allbery (email@example.com) <http://www.eyrie.org/~eagle/>