The SUSE operating system must disable the USB mass storage kernel module.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-234856 | SLES-15-010480 | SV-234856r958820_rule | CCI-001958 | medium |
| Description | ||||
| Without identifying 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. | ||||
| STIG | Date | |||
| SUSE Linux Enterprise Server 15 Security Technical Implementation Guide | 2025-05-14 | |||
Details
Check Text (C-234856r958820_chk)
Verify the SUSE operating system does not automount USB mass storage devices when connected to the host.
Check that "usb-storage" is blacklisted in the "/etc/modprobe.d/50-blacklist.conf" file with the following command:
> grep usb-storage /etc/modprobe.d/50-blacklist.conf
blacklist usb-storage
If nothing is output from the command, this is a finding.
Fix Text (F-38007r618838_fix)
Configure the SUSE operating system to prevent USB mass storage devices from automounting when connected to the host.
Add or update the following line to the "/etc/modprobe.d/50-blacklist.conf" file:
blacklist usb-storage