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AlmaLinux OS 9 audit system must protect auditing rules from unauthorized change.

An XCCDF Rule

Description

Unauthorized disclosure of audit records can reveal system and configuration data to attackers, thus compromising its confidentiality. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit AlmaLinux OS 9 system activity. In immutable mode, unauthorized users cannot execute changes to the audit system to potentially hide malicious activity and then put the audit rules back. A system reboot would be noticeable, and a system administrator could then investigate the unauthorized changes.

ID
SV-269546r1050429_rule
Version
ALMA-09-057110
Severity
Medium
References
Updated

Remediation Templates

A Manual Procedure

Configure the audit system to set the audit rules to be immutable by adding the following line to the end of "/etc/audit/rules.d/audit.rules"

-e 2