On Sun, 10 Dec 2017, Jim Klimov wrote:

I am not sure the rights offered in that bug are fully ok: generally you wouldn't want the configs to be writable by the service daemon if you can avoid it (so if it's hacked - it can be abused to a lesser extent). I think the only writable bit is the killpower file, which might better belong in /var/run/nut or state-dir or something like that. Maybe something for nut-cgi needs writes? Otherwise root:nut 640 should be good, IMHO. Maybe even different users for server/driver/clients, for paranoid setups...

Perhaps a more general review of ownership and permissions would be useful. For example, on my Debian 9 box, command « ls -alF /sbin/ups* » reports

  -rwxr-xr-x 1 root root   425 Jan 25  2017 /sbin/upsd*
  -rwxr-xr-x 1 root root 30816 Jan 25  2017 /sbin/upsdrvctl*
  -rwxr-xr-x 1 root root   429 Jan 25  2017 /sbin/upsmon*
  -rwxr-xr-x 1 root root 30808 Jan 25  2017 /sbin/upssched*

Wouldn't owner root:nut and permissions 750 be better?

Nut-upsuser mailing list

Reply via email to