The macOS system must be configured to audit all administrative action events.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-259452	APPL-14-001001	SV-259452r940978_rule		Medium

Description

Administrative action events include changes made to the system (e.g., modifying authentication policies). If audit records do not include "ad" 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). Administrative and privileged access, including administrative use of the command line tools "kextload" and "kextunload" and changes to configuration settings, are logged by way of the "ad" flag. Satisfies: SRG-OS-000004-GPOS-00004,SRG-OS-000239-GPOS-00089,SRG-OS-000240-GPOS-00090,SRG-OS-000241-GPOS-00091,SRG-OS-000327-GPOS-00127,SRG-OS-000365-GPOS-00152,SRG-OS-000392-GPOS-00172,SRG-OS-000458-GPOS-00203,SRG-OS-000471-GPOS-00215,SRG-OS-000471-GPOS-00216,SRG-OS-000476-GPOS-00221

STIG	Date
Apple macOS 14 (Sonoma) Security Technical Implementation Guide	2024-01-10

Details

Check Text ( C-63191r940976_chk )
Verify the macOS system is configured to audit privileged access with the following command: /usr/bin/awk -F':' '/^flags/ { print $NF }' /etc/security/audit_control | /usr/bin/tr ',' '\n' | /usr/bin/grep -Ec 'ad' If "ad" is not listed in the output, this is a finding.

Fix Text (F-63099r940977_fix)
Configure the macOS system to audit privileged access with the following command: /usr/bin/grep -qE "^flags.*[^-]ad" /etc/security/audit_control || /usr/bin/sed -i.bak '/^flags/ s/$/,ad/' /etc/security/audit_control; /usr/sbin/audit -s A text editor may also be used to implement the required updates to the "/etc/security/audit_control" file.