OL 9 must disable network management of the chrony daemon.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-271698	OL09-00-002321	SV-271698r1091806_rule		Low

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

STIG	Date
Oracle Linux 9 Security Technical Implementation Guide	2025-05-08

Details

Check Text (C-75748r1091804_chk)

Verify that OL 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 Text (F-75655r1091805_fix)

Configure OL 9 to disable network management of the chrony daemon by adding/modifying the following line in the /etc/chrony.conf file:

cmdport 0