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APPL-15-000030 The macOS system must configure audit log files to not contain access control lists (ACLs).

DISA STIG library V1R8
All changes in this version
first version loaded CAT II

Maps to AU-9 via CCI-000162, CCI-000163, CCI-000164, CCI-001493, CCI-001494, CCI-001495

Title

The macOS system must configure audit log files to not contain access control lists (ACLs).

Control

Verify the macOS system is configured without ACLs applied to log files with the following command: /bin/ls -le $(/usr/bin/grep '^dir' /etc/security/audit_control | /usr/bin/awk -F: '{print $2}') | /usr/bin/awk '{print $1}' | /usr/bin/grep -c ":" If the result is not "0", this is a finding.

Discussion

The audit log files must not contain ACLs. This rule ensures that audit information and audit files are configured to be readable and writable only by system administrators, thereby preventing unauthorized access, modification, and deletion of files. 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

Related controls

CCI-000162, CCI-000163, CCI-000164, CCI-001493, CCI-001494, CCI-001495

Fix

Configure the macOS system without ACLs applied to log files with the following command: /bin/chmod -RN /var/audit