18.8.52.1.2 Ensure 'Enable Windows NTP Server' is set to 'Disabled' (MS only)

Information

This policy setting allows you to specify whether the Windows NTP Server is enabled.

The recommended state for this setting is: Disabled.

Note: In most enterprise managed environments, you should not disable the Windows NTP Server on Domain Controllers, as it is very important for the operation of NT5DS (domain hierarchy-based) time synchronization.

Rationale:

The configuration of proper time synchronization is critically important in an enterprise managed environment both due to the sensitivity of Kerberos authentication timestamps and also to ensure accurate security logging.

Solution

To establish the recommended configuration via GP, set the following UI path to Disabled:

Computer Configuration\Policies\Administrative Templates\System\Windows Time Service\Time Providers\Enable Windows NTP Server

Note: This Group Policy path is provided by the Group Policy template W32Time.admx/adml that is included with all versions of the Microsoft Windows Administrative Templates.

Impact:

None - this is the default behavior.


Default Value:

Disabled. (The computer cannot service NTP requests from other computers.)

References:

CCE-37319-1

See Also

https://workbench.cisecurity.org/files/2742

Item Details

Category: SYSTEM AND INFORMATION INTEGRITY

References: 800-53|SI-4, CSCv6|9.1, CSCv7|9.2

Plugin: Windows

Control ID: 6ceccb9269d0a13ff9a283242af5359fbb554fa072b3de023fdf5546f54919bf