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The time synchronization configuration file (such as /etc/ntp.conf) must be group-owned by root, bin, sys, or system.


Finding ID Version Rule ID IA Controls Severity
V-89793 VRAU-SL-001120 SV-100443r1_rule Medium
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 owned by a system group, unauthorized modifications could result in the failure of time synchronization.
VMware vRealize Automation 7.x SLES Security Technical Implementation Guide 2018-10-12


Check Text ( C-89485r1_chk )
Check the group-ownership of the NTP configuration file:

# ls -lL /etc/ntp.conf

If the group-owner is not "root", "bin", "sys", or "system", this is a finding.
Fix Text (F-96535r1_fix)
Change the group-owner of the NTP configuration file:

# chgrp root /etc/ntp.conf