STIGQter: STIG Summary: Red Hat Enterprise Linux 9 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

RHEL 9 must have the USBGuard package installed.

DISA Rule

SV-258035r1045125_rule

Vulnerability Number

V-258035

Group Title

SRG-OS-000378-GPOS-00163

Rule Version

RHEL-09-291015

Severity

CAT II

CCI(s)

CCI-001958 - Authenticate organization-defined devices and/or types of devices before establishing a local, remote, and/or network connection.
CCI-003959 - Prohibit the use or connection of unauthorized hardware components.

Weight

Fix Recommendation

Install the usbguard package with the following command:

$ sudo dnf install usbguard

Enable the service to start on boot and then start it with the following commands:
$ sudo systemctl enable usbguard
$ sudo systemctl start usbguard

Verify the status of the service with the following command:
$ sudo systemctl status usbguard

Note: usbguard will need to be configured to allow authorized devices once it is enabled on RHEL 9.

Check Contents

Verify USBGuard is installed on the operating system with the following command:

$ sudo dnf list installed usbguard

Example output:

Installed Packages
usbguard.x86_64 1.0.0-10.el9_1.2 @rhel-9-for-x86_64-appstream-rpms

If the USBGuard package is not installed, ask the SA to indicate how unauthorized peripherals are being blocked.

If there is no evidence that unauthorized peripherals are being blocked before establishing a connection, this is a finding.

If the system is virtual machine with no virtual or physical USB peripherals attached, this is not a finding.

Vulnerability Number

V-258035

Documentable

False

Rule Version

RHEL-09-291015

Severity Override Guidance

Check Content Reference

Target Key

5551