| name | CIS Ubuntu 14.04 LTS - 1.6.1.4 Ensure no unconfined daemons exist |
| description | Verify that no daemons are running unconfined outside of SELinux policy restrictions |
| category | cis-os-hardening |
| version | 2.1.0 |
| author | cyberstrike-official |
| tags | ["cis","ubuntu","ubuntu-14.04","level-2","scored","mac"] |
| cis_id | 1.6.1.4 |
| cis_benchmark | CIS Ubuntu Linux 14.04 LTS Benchmark v2.1.0 |
| tech_stack | ["ubuntu","linux"] |
| cwe_ids | [] |
| chains_with | ["cis-ubuntu1404-v210-1-6-1-1","cis-ubuntu1404-v210-1-6-1-2"] |
| prerequisites | ["cis-ubuntu1404-v210-1-6-1-1"] |
| severity_boost | medium |
1.6.1.4 Ensure no unconfined daemons exist (Scored)
Profile Applicability
- Level 2 - Server
- Level 2 - Workstation
Description
Daemons that are not defined in SELinux policy will inherit the security context of their parent process.
Rationale
Since daemons are launched and descend from the init process, they will inherit the security context label initrc_t. This could cause the unintended consequence of giving the process more permission than it requires.
Audit Procedure
Run the following command and verify not output is produced:
ps -eZ | egrep "initrc" | egrep -vw "tr|ps|egrep|bash|awk" | tr ':' ' ' | awk '{ print $NF }'
Expected Result
No output should be returned. Any output indicates unconfined daemons that need investigation.
Remediation
Investigate any unconfined daemons found during the audit action. They may need to have an existing security context assigned to them or a policy built for them.
Default Value
Not applicable.
Notes
Occasionally certain daemons such as backup or centralized management software may require running unconfined. Any such software should be carefully analyzed and documented before such an exception is made.
References
- CIS Controls: 14.4 Protect Information With Access Control Lists
Profile
- Level 2 - Server
- Level 2 - Workstation
