The RUCKUS ICX device must authenticate Network Time Protocol sources using authentication that is cryptographically based.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-273826 | RCKS-NDM-000740 | SV-273826r1110846_rule | CCI-001967 | medium |
| Description | ||||
| If Network Time Protocol (NTP) is not authenticated, an attacker can introduce a rogue NTP server. This rogue server can then be used to send incorrect time information to network devices, which will make log timestamps inaccurate and affect scheduled actions. NTP authentication is used to prevent this tampering by authenticating the time source. | ||||
| STIG | Date | |||
| RUCKUS ICX NDM Security Technical Implementation Guide | 2025-05-28 | |||
Details
Check Text (C-273826r1110846_chk)
View NTP configuration:
SSH@ICX# show running-config | begin ntp
ntp
disable authenticate md5
authenticate
authentication-key key-id 1 sha1 2 $VWlkRGkt
server x.x.x.x key 1
server y.y.y.y key 1
If the NTP servers are not configured for authentication that is cryptographically based, this is a finding.
Fix Text (F-77822r1110658_fix)
Configure NTP for authentication using SHA1:
SSH@ICX(config)# ntp
SSH@ICX(config-ntp)# disable authenticate md5
SSH@ICX(config-ntp)# authenticate
SSH@ICX(config-ntp)# authentication-key key-id 1 sha1 [password]