Details

The audit service must be configured to create log files with the correct permissions to prevent normal users from reading audit logs. Audit logs contain sensitive data about the system and about users. If log files are set to be readable and writable only by root or administrative users with sudo, the risk is mitigated.

Solution

For any log file that returns an incorrect permission value, run the following command:

/usr/bin/sudo chmod 440 [audit log file]

[audit log file] is the full path to the log file in question.

Supportive Information

The following resource is also helpful.

• https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Apple_OS_X_10-15_V1R7_STIG.zip

This security hardening control applies to the following category of controls within NIST 800-53: Audit and Accountability.This control applies to the following type of system Unix.

References

• 800-53|AU-9
• CAT|II
• CCI|CCI-000162
• CSCv6|3.1
• Rule-ID|SV-225150r610901_rule
• STIG-ID|AOSX-15-001016
• STIG-Legacy|SV-111825
• STIG-Legacy|V-102863
• Vuln-ID|V-225150

Source

• Tenable.com/audits