STIGQter: STIG Summary: Oracle Linux 9 Security Technical Implementation Guide Version: 1 Release: 6 Benchmark Date: 01 Jul 2026:

OL 9 must block unauthorized peripherals before establishing a connection.

DISA Rule

SV-271701r1091815_rule

Vulnerability Number

V-271701

Group Title

SRG-OS-000378-GPOS-00163

Rule Version

OL09-00-002331

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.

Weight

10

Fix Recommendation

Configure the operating system to enable the blocking of unauthorized peripherals with the following command:

Note: This command must be run from a root shell and will create an allow list for any USB devices currently connect to the system.

# usbguard generate-policy --no-hash > /etc/usbguard/rules.conf

Note: Enabling and starting USBGuard without properly configuring it for an individual system will immediately prevent any access over a USB device such as a keyboard or mouse.

Check Contents

Verify that OL 9 USBGuard has a policy configured with the following command:

$ usbguard list-rules
allow id 1d6b:0001 serial

If the command does not return results or an error is returned, 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.

Vulnerability Number

V-271701

Documentable

False

Rule Version

OL09-00-002331

Severity Override Guidance

Verify that OL 9 USBGuard has a policy configured with the following command:

$ usbguard list-rules
allow id 1d6b:0001 serial

If the command does not return results or an error is returned, 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 Content Reference

M

Target Key

5680