Check: APPL-15-000170
Apple macOS 15 (Sequoia) STIG:
APPL-15-000170
(in versions v1 r3 through v1 r1)
Title
The macOS system must be configured to use an authorized time server. (Cat II impact)
Discussion
An approved time server must be the only server configured for use. As of macOS 10.13, only one time server is supported. 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 Content
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 that is synchronized with redundant USNO time servers as designated for the appropriate DOD network, this is a finding.
Fix Text
Configure the macOS system to use an authorized time server by installing the "com.apple.MCX" configuration profile.
Additional Identifiers
Rule ID: SV-268449r1038944_rule
Vulnerability ID: V-268449
Group Title: SRG-OS-000355-GPOS-00143
Expert Comments
CCIs
| Number | Definition |
|---|---|
| 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. |
Controls
| Number | Title |
|---|---|
| No controls are assigned to this check |