Re: emby-server on f24

[Philip Seeley]

Hi Isaac,

Looks like your basic problem is that you're running the startup script in
the init_t domain, but you should really be running it in the initrc_t
domain (or some custom domain).

Assuming we're talking about the targeted policy, the initrc_t domain is
unconfined, whereas init_t isn't.

Is your startup script labelled with an ..._initrc_exec_t type? This is
assuming you're using SysV startup scripts and not systemd.

If you're using systemd service definitions to call your emby-server.sh
script, then try labelling that script initrc_exec_t.

Cheers

Phil




From:	Isaac Hailperin <isaac.hailperin(a)googlemail.com&gt;
To:	selinux(a)lists.fedoraproject.org
Date:	11/09/2016 23:20
Subject:	emby-server on f24



Hi,

I am trying to get emby-server to run on f24 with selinux in enforcing mode
(which was fine on f23).
Now I am getting denials:

Sep 11 14:32:40 sh01 audit[796]: AVC avc:  denied  { create } for  pid=796
comm="emby-server.sh" name="emby-server.log"
scontext=system_u:system_r:init_t:s0
tcontext=system_u:object_r:var_log_t:s0 tclass=file permissive=0
Sep 11 14:32:40 sh01 audit[796]: AVC avc:  denied  { getattr } for  pid=796
comm="emby-server.sh" path="/usr/bin/su" dev="dm-0"
ino=1580514
scontext=system_u:system_r:init_t:s0
tcontext=system_u:object_r:su_exec_t:s0 tclass=file permissive=0
Sep 11 14:32:40 sh01 audit[796]: AVC avc:  denied  { getattr } for  pid=796
comm="emby-server.sh" path="/usr/bin/su" dev="dm-0"
ino=1580514
scontext=system_u:system_r:init_t:s0
tcontext=system_u:object_r:su_exec_t:s0 tclass=file permissive=0


audit2allow gives me the following policy:
#============= init_t ==============
allow init_t su_exec_t:file getattr;
allow init_t var_log_t:file create;

I am wondering what this implies. Just guessing, this would allow anything
which is started at boot time to use "su" and create a log file
in /var/log. I would not mind the latter, but the former seems a bit too
broad from a security perspective.

What other options do I have? Any recommendations?

Isaac
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