STIGQter: STIG Summary: Red Hat Enterprise Linux 10 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 01 Jul 2026:

RHEL 10 must disable the chrony daemon from acting as a server.

DISA Rule

SV-280960r1165235_rule

Vulnerability Number

V-280960

Group Title

SRG-OS-000096-GPOS-00050

Rule Version

RHEL-10-200542

Severity

CAT II

CCI(s)

• CCI-000382 - Configure the system to prohibit or restrict the use of organization-defined prohibited or restricted functions, system ports, protocols, software, and/or services.
• CCI-000381 - Configure the system to provide only organization-defined mission essential capabilities.

Weight

10

Fix Recommendation

Configure RHEL 10 to disable the chrony daemon from acting as a server by adding/modifying the following line in the "/etc/chrony.conf" file:

port 0

Restart the chronyd service with the following command for the changes to take effect:

$ sudo systemctl restart chronyd

Check Contents

Verify RHEL 10 disables the chrony daemon from acting as a server with the following command:

$ sudo grep -w port /etc/chrony.conf
port 0

If the "port" option is not set to "0", is commented out, or is missing, this is a finding.

Vulnerability Number

V-280960

Documentable

False

Rule Version

RHEL-10-200542

Severity Override Guidance

Verify RHEL 10 disables the chrony daemon from acting as a server with the following command:

$ sudo grep -w port /etc/chrony.conf
port 0

If the "port" option is not set to "0", is commented out, or is missing, this is a finding.

Check Content Reference

M

Target Key

5733