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APPL-26-001029 The macOS system must configure audit retention to seven days.

DISA STIG library V1R4
All changes in this version
first version loaded CAT III

Maps to AU-4 via CCI-001849

Title

The macOS system must configure audit retention to seven days.

Control

Verify the macOS system is configured to set audit retention to seven days with the following command: /usr/bin/awk -F: '/expire-after/{print $2}' /etc/security/audit_control If the result is not "7d", this is a finding.

Discussion

The audit service must be configured to require that records be kept for an organizational-defined value before deletion unless the system uses a central audit record storage facility. When "expire-after" is set to "7d", the audit service will not delete audit logs until the log data criteria is met.

Related controls

CCI-001849

Fix

Configure the macOS system to set audit retention to seven days with the following command: /usr/bin/sed -i.bak 's/^expire-after.*/expire-after:7d/' /etc/security/audit_control; /usr/sbin/audit -s