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 disable the Transparent Inter Process Communication (TIPC) kernel module.

DISA Rule

SV-282478r1200414_rule

Vulnerability Number

V-282478

Group Title

SRG-OS-000095-GPOS-00049

Rule Version

TOSS-05-000108

Severity

CAT II

CCI(s)

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

Weight

10

Fix Recommendation

To configure the system to prevent the "tipc" kernel module from being loaded, add the following line to the file /etc/modprobe.d/tipc.conf (or create tipc.conf if it does not exist):

install tipc /bin/false
blacklist tipc

Check Contents

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

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

blacklist tipc

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

Vulnerability Number

V-282478

Documentable

False

Rule Version

TOSS-05-000108

Severity Override Guidance

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

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

blacklist tipc

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