This is not the latest version of the STIG. This is provided for archival purposes. See the latest STIG.

The macOS system must enforce time synchronization.

STIG ID: APPL-14-000014  |  SRG: SRG-OS-000355-GPOS-00143 |  Severity: medium (CAT II)  |  CCI: CCI-004923,CCI-004926,CCI-004922,CCI-001891,CCI-002046 |  Vulnerability Id: V-259425

Vulnerability Discussion

Time synchronization must be enforced on all networked systems.

This rule ensures the uniformity of time stamps for information systems with multiple system clocks and systems connected over a network.

Satisfies: SRG-OS-000355-GPOS-00143,SRG-OS-000356-GPOS-00144

Check

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.

Fix

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