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 the Controller Area Network (CAN) kernel module.

DISA Rule

SV-282475r1200405_rule

Vulnerability Number

V-282475

Group Title

SRG-OS-000095-GPOS-00049

Rule Version

TOSS-05-000105

Severity

CAT II

CCI(s)

• CCI-000381 - Configure the system to provide only organization-defined mission essential capabilities.

Weight

10

Fix Recommendation

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

install can /bin/false
blacklist can

Check Contents

Verify TOSS 5 disables the ability to load the "CAN" kernel module using the following command:

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

blacklist can

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

Vulnerability Number

V-282475

Documentable

False

Rule Version

TOSS-05-000105

Severity Override Guidance

Verify TOSS 5 disables the ability to load the "CAN" kernel module using the following command:

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

blacklist can

If the command does not return any output, or the line is commented out, and use of CAN 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