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The time synchronization configuration file (such as /etc/ntp.conf) must not have an extended ACL.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22297 | GEN000253 | SV-37418r1_rule | ECLP-1 | Medium |
| Description |
|---|
| 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. |
| STIG | Date |
|---|---|
| Red Hat Enterprise Linux 5 Security Technical Implementation Guide | 2017-01-27 |
Details
| Check Text ( None ) |
|---|
| None |
| Fix Text (F-23451r1_fix) |
|---|
| Remove the extended ACL from the NTP configuration file. # setfacl --remove-all /etc/ntp.conf |