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Bug 1726255 - the rrdcached service runs as unconfined_service_t
Summary: the rrdcached service runs as unconfined_service_t
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: selinux-policy
Version: 8.1
Hardware: All
OS: Linux
medium
medium
Target Milestone: rc
: 8.2
Assignee: Lukas Vrabec
QA Contact: Milos Malik
Jan Fiala
URL:
Whiteboard:
Depends On:
Blocks: 1726199
TreeView+ depends on / blocked
 
Reported: 2019-07-02 12:39 UTC by Milos Malik
Modified: 2020-04-28 16:41 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: Enhancement
Doc Text:
.New SELinux types enable services to run confined This update introduces new SELinux types that enable the following services to run as confined services in SELinux enforcing mode instead of running in the `unconfined_service_t` domain: * `lldpd` now runs as `lldpad_t` * `rrdcached` now runs as `rrdcached_t` * `stratisd` now runs as `stratisd_t` * `timedatex` now runs as `timedatex_t`
Clone Of:
Environment:
Last Closed: 2020-04-28 16:40:41 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2020:1773 0 None None None 2020-04-28 16:41:12 UTC

Description Milos Malik 2019-07-02 12:39:52 UTC 
Description of problem:
 * the service is shipped but it is not confined

Version-Release number of selected component (if applicable):
rrdtool-1.7.0-16.el8.x86_64
selinux-policy-3.14.3-9.el8.noarch
selinux-policy-targeted-3.14.3-9.el8.noarch

How reproducible:
 * always

Steps to Reproduce:
# service rrdcached status
Redirecting to /bin/systemctl status rrdcached.service
● rrdcached.service - Data caching daemon for rrdtool
   Loaded: loaded (/usr/lib/systemd/system/rrdcached.service; disabled; vendor preset: disabled)
   Active: inactive (dead)
     Docs: man:rrdcached(1)

Jul 02 08:23:48 ci-vm-10-0-136-62.hosted.upshift.rdu2.redhat.com systemd[1]: Started Data caching daemon for rrdtool.
Jul 02 08:38:16 ci-vm-10-0-136-62.hosted.upshift.rdu2.redhat.com systemd[1]: Stopping Data caching daemon for rrdtool...
Jul 02 08:38:16 ci-vm-10-0-136-62.hosted.upshift.rdu2.redhat.com systemd[1]: Stopped Data caching daemon for rrdtool.
# service rrdcached start
Redirecting to /bin/systemctl start rrdcached.service
# service rrdcached status
Redirecting to /bin/systemctl status rrdcached.service
● rrdcached.service - Data caching daemon for rrdtool
   Loaded: loaded (/usr/lib/systemd/system/rrdcached.service; disabled; vendor preset: disabled)
   Active: active (running) since Tue 2019-07-02 08:38:22 EDT; 1s ago
     Docs: man:rrdcached(1)
 Main PID: 17954 (rrdcached)
    Tasks: 7 (limit: 11518)
   Memory: 1.4M
   CGroup: /system.slice/rrdcached.service
           └─17954 /usr/bin/rrdcached -g

Jul 02 08:38:22 ci-vm-10-0-136-62.hosted.upshift.rdu2.redhat.com systemd[1]: Started Data caching daemon for rrdtool.
# ps -efZ | grep rrdcached
system_u:system_r:unconfined_service_t:s0 root 17954 1  0 08:38 ?      00:00:00 /usr/bin/rrdcached -g
unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 root 17973 4655  0 08:38 pts/0 00:00:00 grep --color=auto rrdcached
# ls -Z /usr/bin/rrdcached
system_u:object_r:bin_t:s0 /usr/bin/rrdcached
#

Actual results:
 * the service is not confined

Expected results:
 * the service is confined
Comment 2 Nikola Knazekova 2019-07-25 11:45:45 UTC 
PR for Fedora: https://github.com/fedora-selinux/selinux-policy-contrib/pull/127/commits
Comment 10 Milos Malik 2019-11-12 08:39:26 UTC 
# seinfo -t | grep rrdcache
   rrdcached_exec_t
   rrdcached_t
   rrdcached_tmp_t
   rrdcached_var_run_t
# sesearch -s init_t -t tmp_t -c sock_file -T
# sesearch -s init_t -t tmp_t -c sock_file -p create -A
# 

There is no rule which would allow systemd to create such a socket in /tmp.
Comment 19 errata-xmlrpc 2020-04-28 16:40:41 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:1773
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