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The macOS system must configure system log files to mode 640 or less permissive.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-268553APPL-15-004040SV-268553r1034599_ruleCCI-001312medium
Description
The system logs must be configured to be writable by root and readable only by the root user and group wheel. To achieve this, system log files must be configured to mode 640 permissive or less, thereby preventing normal users from reading, modifying, or deleting audit logs. System logs frequently contain sensitive information that could be used by an attacker. Setting the correct permissions mitigates this risk. Satisfies: SRG-OS-000205-GPOS-00083, SRG-OS-000206-GPOS-00084
STIGDate
Apple macOS 15 (Sequoia) Security Technical Implementation Guide2026-02-06

Related Frameworks

1 mapping across 3 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

TDA-19Error Handling
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (19) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-17(1)Monitoring and Control
1.00
AC-6(9)Log Use of Privileged Functions
1.00
AU-10Non-repudiation
1.00
AU-12Audit Record Generation
1.00
AU-14(1)System Start-up
1.00
AU-3Content of Audit Records
1.00
AU-3(1)Additional Audit Information
1.00
AU-9Protection of Audit Information
1.00
CM-3(5)Automated Security Response
1.00
CM-5(1)Automated Access Enforcement and Audit Records
1.00

+9 more (top 10 by confidence shown)

CCI1 mapping
CCI-001312
1.00

Details

Check Text (C-268553r1034599_chk)

Verify the macOS system is configured with system log files set to mode 640 or less permissive with the following command: /usr/bin/stat -f '%A:%N' $(/usr/bin/grep -v '^#' /etc/newsyslog.conf | /usr/bin/awk '{ print $1 }') 2> /dev/null | /usr/bin/awk '!/640/{print $1}' | /usr/bin/wc -l | /usr/bin/tr -d ' ' If the result is not "0", this is a finding.

Fix Text (F-72484r1034598_fix)

Configure the macOS system with system log files set to mode 640 or less permissive with the following command: /bin/chmod 640 $(/usr/bin/stat -f '%A:%N' $(/usr/bin/grep -v '^#' /etc/newsyslog.conf | /usr/bin/awk '{ print $1 }') 2> /dev/null | /usr/bin/awk '!/640/{print $1}' | awk -F":" '!/640/{print $2}')