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APPL-26-004001 The macOS system must configure Apple System Log (ASL) files owned by root and group to wheel.

DISA STIG library V1R4
All changes in this version
first version loaded CAT II

Maps to SI-11 via CCI-001312, CCI-001314

Title

The macOS system must configure Apple System Log (ASL) files owned by root and group to wheel.

Control

Verify the macOS system is configured with ASL files owned by root and group to wheel with the following command: /usr/bin/stat -f '%Su:%Sg:%N' $(/usr/bin/grep -e '^>' /etc/asl.conf /etc/asl/* | /usr/bin/awk '{ print $2 }') 2> /dev/null | /usr/bin/awk '!/^root:wheel:/{print $1}' | /usr/bin/wc -l | /usr/bin/tr -d ' ' If the result is not "0", this is a finding.

Discussion

The ASL must be owned by root. ASLs contain sensitive data about the system and users. Setting ASL files to be readable and writable only by system administrators mitigates the risk. Satisfies: SRG-OS-000205-GPOS-00083, SRG-OS-000206-GPOS-00084

Related controls

CCI-001312, CCI-001314

Fix

Configure the macOS system with ASL files owned by root and group to wheel with the following command: /usr/sbin/chown root:wheel $(/usr/bin/stat -f '%Su:%Sg:%N' $(/usr/bin/grep -e '^>' /etc/asl.conf /etc/asl/* | /usr/bin/awk '{ print $2 }') 2> /dev/null | /usr/bin/awk '!/^root:wheel:/{print $1}' | /usr/bin/awk -F":" '!/^root:wheel:/{print $3}')