The HPE Alletra Storage ArcusOS device must authenticate Network Time Protocol (NTP) sources using authentication that is cryptographically based.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-283410SRG-APP-000395-NDM-000347ASMP-ND-000840SV-283410r1194924_rule2026-03-031

Description

If 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. Satisfies: SRG-APP-000395-NDM-000347, SRG-APP-000920-NDM-000320, SRG-APP-000925-NDM-000330

ℹ️ Check

Verify the NTP server is configured to utilize a valid key using the following command: cli% shownet -d Example output: Detailed information about configured NTP servers 16.110.135.123 : 10.157.44.5 : key 1 If "Detailed information about configured NTP servers" does not display an NTP server with a key, this is a finding.

✔️ Fix

Import the NTP key and add it to the NTP server with the following commands: cli% setnet ntp -add <server ip address> cli% importkeys ntp stdin Please paste the keys for ntp. Once finished, please press Enter twice. 1 SHA256 myfirstsecretkey cli% cli% setnet ntp -add -key <ID> <NTP_Server_IP>