Bug 2211566 - SELinux prevents the rhsmcertd-worker from executing the ip command
Summary: SELinux prevents the rhsmcertd-worker from executing the ip command
Keywords:
Status: VERIFIED
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: selinux-policy
Version: 9.3
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Nikola Knazekova
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2023-06-01 05:24 UTC by Pino Toscano
Modified: 2023-06-26 07:42 UTC (History)
3 users (show)

Fixed In Version: selinux-policy-38.1.15-1.el9
Doc Type: No Doc Update
Doc Text:
Clone Of:
Environment:
Last Closed:
Type: Bug
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Github fedora-selinux selinux-policy pull 1723 0 None open Allow subscription-manager execute ip 2023-06-01 15:12:33 UTC
Red Hat Issue Tracker RHELPLAN-158764 0 None None None 2023-06-01 05:30:02 UTC

Description Pino Toscano 2023-06-01 05:24:44 UTC
Description of problem:
We (subscription-manager team) are working to change how subscription-manager collects network facts, making use of `ip` from the iproute package. When a first draft of the change was tested with QE's help, the result was that rhsmcertd-worker (spawned by rhsmcertd) does now allow this execution -- for example:

type=AVC msg=audit(1684773208.054:13797): avc:  denied  { execute } for  pid=57312 comm="rhsmcertd-worke" name="ip" dev="vda1" ino=12803826 scontext=system_u:system_r:rhsmcertd_t:s0 tcontext=system_u:object_r:ifconfig_exec_t:s0 tclass=file permissive=0

The `ip` usage seems to not trigger denials when run from the subscription-manager CLI, e.g. when registering using `subscription-manager register` or a simpler `subscription-manager facts` (to trigger the facts collection).

Hence, please allow rhsmcertd-worker to execute/run `ip`.

How reproducible:
All the time.

Steps to Reproduce:
1. Install a version of subscription-manager that uses `ip` to collect network facts
2. Shorten the check-in time of rhsmcertd to e.g. 5 minutes & disable the splay (the randomization of the check-in time within the interval), so you can see the problem quicker than waiting for the default check-in time (which is ~4h):
  # subscription-manager config --rhsmcertd.certCheckInterval=5 --rhsmcertd.splay=0
3. Restart rhsmcertd: `systemctl restart rhsmcertd.service`
4. Register a system: `subscription-manager register`
5. Wait for 5 minutes

Actual results:
SELinux denials for the execution of "ip" as shown above.

Expected results:
No denials.

Comment 4 Zdenek Pytela 2023-06-01 15:16:57 UTC
Note: run the command as
subscription-manager config --rhsmcertd.certcheckinterval=3 --rhsmcertd.splay=0

or edit /etc/rhsm/rhsm.conf

Comment 7 Zdenek Pytela 2023-06-08 18:55:50 UTC
Commit:
795a04994 Allow subscription-manager execute ip


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