STIGQter: STIG Summary: Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 26 Mar 2026:

TOSS 5 must be configured to disable USB mass storage.

DISA Rule

SV-282501r1200483_rule

Vulnerability Number

V-282501

Group Title

SRG-OS-000114-GPOS-00059

Rule Version

TOSS-05-000284

Severity

CAT II

CCI(s)

• CCI-000778 - Uniquely identify organization-defined devices and/or types of devices before establishing a local, remote, and/or network connection.
• CCI-001958 - Authenticate organization-defined devices and/or types of devices before establishing a local, remote, and/or network connection.
• CCI-003959 - Prohibit the use or connection of unauthorized hardware components.

Weight

10

Fix Recommendation

Configure the system to prevent the usb-storage kernel module from being loaded by adding the following line to the file /etc/modprobe.d/usb-storage.conf (or create usb-storage.conf if it does not exist):

install usb-storage /bin/false
blacklist usb-storage

Check Contents

Verify TOSS 5 disables the ability to load the USB Storage kernel module using the following command:

$ sudo grep -r usb-storage /etc/modprobe.conf /etc/modprobe.d/*

blacklist usb-storage

If the command does not return any output, the line is commented out, and use of USB Storage is not documented with the information system security officer (ISSO) as an operational requirement, this is a finding.

Vulnerability Number

V-282501

Documentable

False

Rule Version

TOSS-05-000284

Severity Override Guidance

Verify TOSS 5 disables the ability to load the USB Storage kernel module using the following command:

$ sudo grep -r usb-storage /etc/modprobe.conf /etc/modprobe.d/*

blacklist usb-storage

If the command does not return any output, the line is commented out, and use of USB Storage is not documented with the information system security officer (ISSO) as an operational requirement, this is a finding.

Check Content Reference

M

Target Key

5738