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The macOS system must be configured to use an authorized time server.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-259450APPL-14-000170SV-259450r1038944_ruleCCI-004923medium
Description
Approved time servers must be the only servers configured for use. This rule ensures the uniformity of time stamps for information systems with multiple system clocks and systems connected over a network. An authoritative time server is synchronized with redundant United States Naval Observatory (USNO) time servers as designated for the appropriate DOD network. Satisfies: SRG-OS-000355-GPOS-00143,SRG-OS-000356-GPOS-00144
STIGDate
Apple macOS 14 (Sonoma) Security Technical Implementation Guide2024-12-04

Related Frameworks

4 mappings across 4 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 (9) 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
AU-8Time Stamps
1.00
AU-8(1)Synchronization with Authoritative Time Source
1.00
AU-8(2)Secondary Authoritative Time Source
1.00
CM-6Configuration Settings
1.00
IA-3(1)Cryptographic Bidirectional Authentication
1.00
SC-45System Time Synchronization
1.00
SC-45(1)Synchronization with Authoritative Time Source
1.00
SC-45(2)Secondary Authoritative Time Source
1.00
NIST 800-1710 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.

3.3.7
1.00
CCI4 mappings
CCI-001891
1.00
CCI-002046
1.00
CCI-004923
1.00
CCI-004926
1.00

Details

Check Text (C-259450r1038944_chk)

Verify the macOS system is configured to use an authorized time server with the following command: /usr/bin/osascript -l JavaScript << EOS $.NSUserDefaults.alloc.initWithSuiteName('com.apple.MCX')\ .objectForKey('timeServer').js EOS If the result is not an authoritative time server which is synchronized with redundant USNO time servers as designated for the appropriate DOD network, this is a finding.

Fix Text (F-63097r940971_fix)

Configure the macOS system to use an authorized time server by installing the "com.apple.MCX" configuration profile.