The macOS system must configure audit log folders group to wheel.

STIG ID: APPL-14-001015  |  SRG: SRG-OS-000057-GPOS-00027 |  Severity: medium |  CCI: CCI-000162,CCI-000163,CCI-000164,CCI-001493,CCI-001494,CCI-001495 |  Vulnerability Id: V-259459 | 

Vulnerability Discussion

Audit log folders must have the group set to wheel.

The audit service must be configured to create log files with the correct group ownership to prevent
normal users from reading audit logs.

Audit logs contain sensitive data about the system and users. If log files are set to be readable and
writable only by system administrators, the risk is mitigated.

Satisfies:
SRG-OS-000057-GPOS-00027,SRG-OS-000058-GPOS-00028,SRG-OS-000059-GPOS-00029,SRG-OS-000256-GPOS-00097,SRG-OS-000257-GPOS-00098,SRG-OS-000258-GPOS-00099

Check

Verify the macOS system is configured with audit log folders group-owned by wheel with
the following command:

/bin/ls -dn $(/usr/bin/grep '^dir' /etc/security/audit_control | /usr/bin/awk -F: '{print $2}') |
/usr/bin/awk '{print $4}'

If the result is not "0", this is a finding.

Fix

Configure the macOS system with audit log folders group-owned by wheel
with the following command:

/usr/bin/chgrp wheel /var/audit
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