RHEL 9 must disable network management of the chrony daemon.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| low | V-257947 | SRG-OS-000096-GPOS-00050 | RHEL-09-252030 | SV-257947r958480_rule | 2026-02-05 | 2 |
Description
Not exposing the management interface of the chrony daemon on the network diminishes the attack space.
Satisfies: SRG-OS-000096-GPOS-00050, SRG-OS-000095-GPOS-00049
ℹ️ Check
Verify RHEL 9 disables network management of the chrony daemon with the following command:
$ grep -w cmdport /etc/chrony.conf
cmdport 0
If the "cmdport" option is not set to "0", is commented out, or is missing, this is a finding.
✔️ Fix
Configure RHEL 9 to disable network management of the chrony daemon by adding/modifying the following line in the /etc/chrony.conf file:
cmdport 0