Details

Ensure you authenticate the identity of a system to which Network Time Protocol (NTP) will synchronize

Solution

Configure the NTP trusted key using the following command
hostname(config)#ntp trusted-key {ntp_key_id}

Supportive Information

The following resource is also helpful.

• https://workbench.cisecurity.org/files/508

This security hardening control applies to the following category of controls within NIST 800-53: Identification and Authentication.This control applies to the following type of system Cisco.

References

• 800-53|IA-3

Source

• Tenable.com/audits