Title

RHEL 9 fapolicy module must be enabled. (Cat II impact)

Discussion

The organization must identify authorized software programs and permit execution of authorized software. The process used to identify software programs that are authorized to execute on organizational information systems is commonly referred to as allowlisting. Utilizing an allowlist provides a configuration management method for allowing the execution of only authorized software. Using only authorized software decreases risk by limiting the number of potential vulnerabilities. Verification of allowlisted software occurs prior to execution or at system startup. User home directories/folders may contain information of a sensitive nature. Nonprivileged users should coordinate any sharing of information with an SA through shared resources. RHEL 9 ships with many optional packages. One such package is a file access policy daemon called "fapolicyd". "fapolicyd" is a userspace daemon that determines access rights to files based on attributes of the process and file. It can be used to either blocklist or allowlist processes or file access. Proceed with caution with enforcing the use of this daemon. Improper configuration may render the system nonfunctional. The "fapolicyd" API is not namespace aware and can cause issues when launching or running containers. Satisfies: SRG-OS-000370-GPOS-00155, SRG-OS-000368-GPOS-00154

Check Content

Verify that RHEL 9 fapolicyd is active with the following command: $ systemctl is-active fapolicyd active If fapolicyd module is not active, this is a finding.

Fix Text

Enable the fapolicyd with the following command: $ systemctl enable --now fapolicyd

Additional Identifiers

Rule ID: SV-258090r926257_rule

Vulnerability ID: V-258090

Group Title: SRG-OS-000370-GPOS-00155

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.