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V-234856

CAT II (Medium)

The SUSE operating system must disable the USB mass storage kernel module.

Rule ID

SV-234856r958820_rule

STIG

SUSE Linux Enterprise Server 15 Security Technical Implementation Guide

Version

V2R7

CCIs

None

Discussion

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.

Check Content

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

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