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RHEL 9 must periodically flush audit records to disk to prevent the loss of audit records.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-258168 | RHEL-09-653095 | SV-258168r926491_rule | Medium |
| Description |
|---|
| If option "freq" is not set to a value that requires audit records being written to disk after a threshold number is reached, then audit records may be lost. |
| STIG | Date |
|---|---|
| Red Hat Enterprise Linux 9 Security Technical Implementation Guide | 2023-09-13 |
Details
| Check Text ( C-61909r926489_chk ) |
|---|
| Verify that audit system is configured to flush to disk after every 100 records with the following command: $ sudo grep freq /etc/audit/auditd.conf freq = 100 If "freq" isn't set to a value of "100" or greater, the value is missing, or the line is commented out, this is a finding. |
| Fix Text (F-61833r926490_fix) |
|---|
| Configure RHEL 9 to flush audit to disk by adding or updating the following rule in "/etc/audit/rules.d/audit.rules": freq = 100 The audit daemon must be restarted for the changes to take effect. |