DISA STIGS Viewer

The RUCKUS ICX device must be configured to synchronize system clocks within and between systems or system components.

Overview

Finding ID Version Rule ID IA Controls Severity
V-273850 RCKS-NDM-001140 SV-273850r1111029_rule   Medium
Description
Time synchronization of system clocks is essential for the correct execution of many system services, including identification and authentication processes that involve certificates and time-of-day restrictions as part of access control. Denial of service or failure to deny expired credentials may result without properly synchronized clocks within and between systems and system components. Time is commonly expressed in Coordinated Universal Time (UTC), a modern continuation of Greenwich Mean Time (GMT), or local time with an offset from UTC. The granularity of time measurements refers to the degree of synchronization between system clocks and reference clocks, such as clocks synchronizing within hundreds of milliseconds or tens of milliseconds. Organizations may define different time granularities for system components. Time service can be critical to other security capabilities such as access control and identification and authentication depending on the nature of the mechanisms used to support the capabilities.
STIG Date
RUCKUS ICX NDM Security Technical Implementation Guide 2025-05-28

Details

Check Text (C-77941r1111028_chk)
Verify the network device is configured to synchronize system clocks within and between systems or system components:

device#show ntp association
address Domain name Reference Clock st when poll Reach delay offset disp
~ 216.239.35.8 None 1 1 64 1 34.449 21474836 187.55
* synced, # selected, + candidate, - outlayer, x falseticker, ~ configured, **More characters in domain name

If the network device is not configured to synchronize system clocks within and between systems or system components, this is a finding.
Fix Text (F-77846r1110730_fix)
Configure NTP clock synchronization.

Configure NTP:
device#configure terminal
device(config)# ntp
device(config-ntp)#server 216.239.35.8 (example IP)
device(config-ntp)# write memory

Configure NTP with authentication:
device#configure terminal
device(config)# ntp
device(config-ntp)#server 216.239.35.8 (example IP)
device(config-ntp)#authentication-key key-id 1234 sha1 testntpsession
device(config-ntp)# write memory