STIGQter: STIG Summary: Apple macOS 15 (Sequoia) Security Technical Implementation Guide Version: 1 Release: 7 Benchmark Date: 01 Apr 2026:

The macOS system must enforce time synchronization.

DISA Rule

SV-268427r1131179_rule

Vulnerability Number

V-268427

Group Title

SRG-OS-000355-GPOS-00143

Rule Version

APPL-15-000014

Severity

CAT II

CCI(s)

• CCI-004923 - Compare the internal system clocks on an organization-defined frequency with organization-defined authoritative time source.
• CCI-004926 - Synchronize the internal system clocks to the authoritative time source when the time difference is greater than organization-defined time period.
• CCI-004922 - Synchronize system clocks within and between systems or system components.

Weight

10

Fix Recommendation

Configure the macOS system to enforce time synchronization by installing the "com.apple.ManagedClient.preferences" configuration profile.

Check Contents

Verify the macOS system is configured to enforce time synchronization with the following command:

/usr/bin/osascript -l JavaScript << EOS
$.NSUserDefaults.alloc.initWithSuiteName('com.apple.timed')\
.objectForKey('TMAutomaticTimeOnlyEnabled').js
EOS

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

Vulnerability Number

V-268427

Documentable

False

Rule Version

APPL-15-000014

Severity Override Guidance

Verify the macOS system is configured to enforce time synchronization with the following command:

/usr/bin/osascript -l JavaScript << EOS
$.NSUserDefaults.alloc.initWithSuiteName('com.apple.timed')\
.objectForKey('TMAutomaticTimeOnlyEnabled').js
EOS

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

Check Content Reference

M

Target Key

5661