The macOS system must configure audit_control owner to mode 440 or less permissive.

STIG ID: APPL-15-001130  |  SRG: SRG-OS-000057-GPOS-00027 |  Severity: medium |  CCI: CCI-000162,CCI-000163,CCI-000164,CCI-000171,CCI-001493,CCI-001494,CCI-001495 |  Vulnerability Id: V-268475

Vulnerability Discussion

/etc/security/audit_control must be configured so that it is readable only by the root user and group wheel.

The audit service must be configured with the correct mode to prevent normal users from manipulating audit log configurations.

Satisfies: SRG-OS-000057-GPOS-00027, SRG-OS-000058-GPOS-00028, SRG-OS-000059-GPOS-00029, SRG-OS-000063-GPOS-00032, SRG-OS-000256-GPOS-00097, SRG-OS-000257-GPOS-00098, SRG-OS-000258-GPOS-00099

Check

Verify the macOS system is configured with the audit_control to mode 440 or less with the following command:

/bin/ls -l /etc/security/audit_control | /usr/bin/awk '!/-r--[r-]-----|current|total/{print $1}' | /usr/bin/wc -l | /usr/bin/xargs

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

Fix

Configure the macOS system with the audit_control to mode 440 with the following command:

/bin/chmod 440 /etc/security/audit_control
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