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I use a monitoring tool and on one of my systems that is checked remotely, it calls up a script, which in turn runs systemctl to check the status of a service. This was not working until I put SELinux in permissive mode. However I will not be able to leave this system in permissive mode. I need to use semanage for the exception and place the system back into an enforcing state. I have used semanage before for a process but never for a file. I have been looking over the man page and googling around but I can't seem to figure out the exact command I need to use. So say I need to allow a script called "run_this_script" in the /usr/lib64/application/plugin folder, what is the command I would use with semanage?

EDIT - just to give more context around what I was seeing in the audit logs, here is a snippet.

type=AVC msg=audit(1446051455.169:3313): avc:  denied  { execute }   for  pid=15388 comm="check_init_serv" name="systemctl" dev="dm-1"  ino=2101040 scontext=system_u:system_r:nrpe_t:s0  tcontext=system_u:object_r:systemd_systemctl_exec_t:s0 tclass=file
type=SYSCALL msg=audit(1446051455.169:3313): arch=c000003e  syscall=59 success=no exit=-13 a0=2098450 a1=209ba50 a2=209c680    a3=7fff573ff5b0 items=0 ppid=15386 pid=15388 auid=4294967295 uid=997    gid=995 euid=997 suid=997 fsuid=997 egid=995 sgid=995 fsgid=995 tty=   (none) ses=4294967295 comm="check_init_serv" exe="/usr/bin/bash"   subj=system_u:system_r:nrpe_t:s0 key=(null)

type=AVC msg=audit(1446051455.169:3314): avc:  denied  { getattr }   for  pid=15388 comm="check_init_serv" path="/usr/bin/systemctl"   dev="dm-1" ino=2101040 scontext=system_u:system_r:nrpe_t:s0    tcontext=system_u:object_r:systemd_systemctl_exec_t:s0 tclass=file
type=SYSCALL msg=audit(1446051455.169:3314): arch=c000003e     syscall=4 success=no exit=-13 a0=2098450 a1=7fff573ff780     a2=7fff573ff780 a3=7fff573ff5b0 items=0 ppid=15386 pid=15388     auid=4294967295 uid=997 gid=995 euid=997 suid=997 fsuid=997 egid=995     sgid=995 fsgid=995 tty=(none) ses=4294967295 comm="check_init_serv"     exe="/usr/bin/bash" subj=system_u:system_r:nrpe_t:s0 key=(null)

type=AVC msg=audit(1446051455.169:3315): avc:  denied  { getattr }     for  pid=15388 comm="check_init_serv" path="/usr/bin/systemctl"    dev="dm-1" ino=2101040 scontext=system_u:system_r:nrpe_t:s0     tcontext=system_u:object_r:systemd_systemctl_exec_t:s0 tclass=file
type=SYSCALL msg=audit(1446051455.169:3315): arch=c000003e   syscall=4 success=no exit=-13 a0=2098450 a1=7fff573ff760   a2=7fff573ff760 a3=7fff573ff5b0 items=0 ppid=15386 pid=15388   auid=4294967295 uid=997 gid=995 euid=997 suid=997 fsuid=997 egid=995   sgid=995 fsgid=995 tty=(none) ses=4294967295 comm="check_init_serv"   exe="/usr/bin/bash" subj=system_u:system_r:nrpe_t:s0 key=(null)

type=AVC msg=audit(1446053257.457:3401): avc:  denied  { read } for     pid=15647 comm="systemctl" name="journal" dev="tmpfs" ino=11584    scontext=system_u:system_r:nrpe_t:s0   tcontext=system_u:object_r:syslogd_var_run_t:s0 tclass=dir
0

Didn't test, but..

find the name you need with audit2allow -a, and then run

  • Activate the policy package: semodule -i <module_name>.pp
  • verify the module loaded: semanage module -l | grep <module_name>
  • then go back to enforcing: setenforce 1

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