GEN000253 - The time synchronization configuration file (such as /etc/ntp.conf) must not have an extended ACL.


A synchronized system clock is critical for the enforcement of time-based policies and the correlation of logs and audit records with other systems. If an illicit time source is used for synchronization, the integrity of system logs and the security of the system could be compromised. If the configuration files controlling time synchronization are not protected, unauthorized modifications could result in the failure of time synchronization.


Remove the extended ACL from the ntp.conf file.
#acledit /etc/ntp.conf

See Also

Item Details


References: 800-53|AC-6, CAT|II, CCI|CCI-000225, Rule-ID|SV-38667r1_rule, STIG-ID|GEN000253, Vuln-ID|V-22297

Plugin: Unix

Control ID: bd16e4f588232aa58e46bf5896003b9b8335290508326a23d7d919b8df67a66e