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SLEM 5 must disable the USB mass storage kernel module.


Overview

Finding ID Version Rule ID IA Controls Severity
V-261347 SLEM-05-291015 SV-261347r996498_rule 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 Micro (SLEM) 5 Security Technical Implementation Guide 2024-06-04

Details

Check Text ( C-65076r996497_chk )
Verify SLEM 5 does not automount USB mass storage devices when connected to the host with the following command:

> grep usb-storage /etc/modprobe.d/50-blacklist.conf
blacklist usb-storage

If the line is commented out or the line is missing, this is a finding.
Fix Text (F-64984r995907_fix)
Configure SLEM 5 to prevent USB mass storage devices from automounting when connected to the host.

Add or modify the following line in the "/etc/modprobe.d/50-blacklist.conf" file:

blacklist usb-storage