RHEL 8 must have the USBGuard installed.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-244547	RHEL-08-040139	SV-244547r854076_rule		Medium

Description
Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Peripherals include, but are not limited to, such devices as flash drives, external storage, and printers. A new feature that RHEL 8 provides is the USBGuard software framework. The USBguard-daemon is the main component of the USBGuard software framework. It runs as a service in the background and enforces the USB device authorization policy for all USB devices. The policy is defined by a set of rules using a rule language described in the usbguard-rules.conf file. The policy and the authorization state of USB devices can be modified during runtime using the usbguard tool. The System Administrator (SA) must work with the site Information System Security Officer (ISSO) to determine a list of authorized peripherals and establish rules within the USBGuard software framework to allow only authorized devices.

Description

Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Peripherals include, but are not limited to, such devices as flash drives, external storage, and printers. A new feature that RHEL 8 provides is the USBGuard software framework. The USBguard-daemon is the main component of the USBGuard software framework. It runs as a service in the background and enforces the USB device authorization policy for all USB devices. The policy is defined by a set of rules using a rule language described in the usbguard-rules.conf file. The policy and the authorization state of USB devices can be modified during runtime using the usbguard tool. The System Administrator (SA) must work with the site Information System Security Officer (ISSO) to determine a list of authorized peripherals and establish rules within the USBGuard software framework to allow only authorized devices.

STIG	Date
Red Hat Enterprise Linux 8 Security Technical Implementation Guide	2023-09-11

Details

Check Text ( C-47822r743888_chk )
Verify USBGuard is installed on the operating system with the following command: $ sudo yum list installed usbguard Installed Packages usbguard.x86_64 0.7.8-7.el8 @ol8_appstream 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.

Check Text ( C-47822r743888_chk )

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

$ sudo yum list installed usbguard

Installed Packages
usbguard.x86_64 0.7.8-7.el8 @ol8_appstream

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.

Fix Text (F-47779r743889_fix)
Install the USBGuard package with the following command: $ sudo yum install usbguard.x86_64