The macOS system must be configured to audit all failed read actions on the system.
An XCCDF Rule
Description
<VulnDiscussion>The audit system must be configured to record enforcement actions of access restrictions, including failed file read (-fr) attempts. Enforcement actions are the methods or mechanisms used to prevent unauthorized access and/or changes to configuration settings. One common and effective enforcement action method is using access restrictions (e.g., denying access to a file by applying file permissions). This configuration ensures that audit lists include events in which enforcement actions prevent attempts to read a file. Without auditing the enforcement of access restrictions, it is difficult to identify attempted attacks, as there is no audit trail available for forensic investigation. Satisfies: SRG-OS-000463-GPOS-00207,SRG-OS-000057-GPOS-00027,SRG-OS-000465-GPOS-00209,SRG-OS-000474-GPOS-00219</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-259464r941014_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Configure the macOS system to audit all failed read actions on the system with the following command:
/usr/bin/grep -qE "^flags.*-fr" /etc/security/audit_control || /usr/bin/sed -i.bak '/^flags/ s/$/,-fr/' /etc/security/audit_control;/usr/sbin/audit -s