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audit_failure_halt Configure System to Shut Down Upon Audit Failure

NIST macOS Security Compliance Project Sequoia Guidance, Revision 4.0 (be5491f)
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first version loaded Auditing

Title

Configure System to Shut Down Upon Audit Failure

Control

/usr/bin/awk -F':' '/^policy/ {print $NF}' /etc/security/audit_control | /usr/bin/tr ',' '\n' | /usr/bin/grep -Ec 'ahlt'

Discussion

The audit service _MUST_ be configured to shut down the computer if it is unable to audit system events.

Once audit failure occurs, user and system activity are no longer recorded, and malicious activity could go undetected. Audit processing failures can occur due to software/hardware errors, failures in the audit capturing mechanisms, and audit storage capacity being reached or exceeded.

Related controls

au-5

Fix

[source,bash]
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/usr/bin/sed -i.bak 's/^policy.*/policy: ahlt,argv/' /etc/security/audit_control; /usr/sbin/audit -s
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