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Log folders must not contain ACLs.


Overview

Finding ID Version Rule ID IA Controls Severity
V-59619 AOSX-10-000338 SV-74049r1_rule Medium
Description
The audit service must be configured to create log folders 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 folders are set to only be readable and writable by root or administrative users with sudo, the risk is mitigated.
STIG Date
Apple OS X 10.10 (Yosemite) Workstation Security Technical Implementation Guide 2017-04-06

Details

Check Text ( C-60389r1_chk )
To check if a log folder contains ACLs, run the following commands:

sudo ls -lde $(sudo grep '^dir' /etc/security/audit_control | awk -F: '{print $2}')

In the output from the above commands, ACLs will be listed under any folder that may contain them (e.g., '0: group:admin allow list,readattr,reaadextattr,readsecurity'). If any such line exists, this is a finding.
Fix Text (F-65029r1_fix)
For any log folder that contains ACLs, run the following command:

sudo chmod -N [audit log folder]