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The macOS system must enforce time synchronization.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-277035APPL-26-000014SV-277035r1148557_ruleCCI-004923medium
Description
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, SRG-OS-000785-GPOS-00250
STIGDate
Apple macOS 26 (Tahoe) Security Technical Implementation Guide2026-05-23

Related Frameworks

3 mappings 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.

MON-07.1Synchronization With Authoritative Time Source
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (15) 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(9)Disconnect or Disable Access
1.00
AC-2(3)Disable Accounts
1.00
AU-8Time Stamps
1.00
AU-8(1)Synchronization with Authoritative Time Source
1.00
AU-8(2)Secondary Authoritative Time Source
1.00
AU-9Protection of Audit Information
1.00
CM-6Configuration Settings
1.00
CM-6(1)Automated Management, Application, and Verification
1.00
IA-2(6)Access to Accounts —separate Device
1.00
IA-3(1)Cryptographic Bidirectional Authentication
1.00

+5 more (top 10 by confidence shown)

CCI3 mappings
CCI-004922
1.00
CCI-004923
1.00
CCI-004926
1.00

Details

Check Text (C-277035r1148557_chk)

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 Text (F-81095r1148556_fix)

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