Detections
Analytics
ARBA-ND-000347 - AOS must authenticate Network Time Protocol (NTP) sources using authentication that is cryptographically based.
Information
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.Solution
Configure AOS with the following commands:configure terminal
ntp authentication-key (keyid #> sha1 <plaintext key>
ntp trusted-key <keyid #>
ntp server <first fqdn, ipv4, or ipv6 address> key <keyid #>
ntp server <second fqdn, ipv4, or ipv6 address> key <keyid #>
ntp authenticate
write memory
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_HPE_Aruba_Networking_AOS_Y26M04_STIG.zip
Item Details
Audit Name: DISA HPE Aruba Networking AOS NDM STIG v1r1
Category: IDENTIFICATION AND AUTHENTICATION
References: 800-53|IA-3(1), CAT|II, CCI|CCI-001967, Rule-ID|SV-266976r1039949_rule, STIG-ID|ARBA-ND-000347, Vuln-ID|V-266976
Plugin: ArubaOS
Control ID: aa0c4f79d0e1bd1ebfb19aace195993fd00d6a4cc95d0e50c931794bd49d6dd9