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audit_flags_aa_configure Configure System to Audit All Authorization and Authentication Events

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

Title

Configure System to Audit All Authorization and Authentication Events

Control

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

Discussion

The auditing system _MUST_ be configured to flag authorization and authentication (aa) events.

Authentication events contain information about the identity of a user, server, or client. Authorization events contain information about permissions, rights, and rules. If audit records do not include aa events, it is difficult to identify incidents and to correlate incidents to subsequent events.

Audit records can be generated from various components within the information system (e.g., via a module or policy filter).

Related controls

ac-2.12, au-12, au-2, cm-5.1, ma-4.1

Fix

[source,bash]
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/usr/bin/grep -qE "^flags.*[^-]aa" /etc/security/audit_control || /usr/bin/sed -i.bak '/^flags/ s/$/,aa/' /etc/security/audit_control; /usr/sbin/audit -s
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