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 enable the Pluggable Authentication Module (PAM) interface for SSHD.

DISA Rule

SV-282504r1200492_rule

Vulnerability Number

V-282504

Group Title

SRG-OS-000125-GPOS-00065

Rule Version

TOSS-05-000240

Severity

CAT I

CCI(s)

• CCI-000877 - Employ strong authentication in the establishment of nonlocal maintenance and diagnostic sessions.

Weight

10

Fix Recommendation

Configure the TOSS 5 SSHD to use the "UsePAM" interface, by adding or modifying the following line in "/etc/ssh/sshd_config":

UsePAM yes

Restart the SSH daemon for the settings to take effect:

$ sudo systemctl restart sshd.service

Check Contents

Verify the TOSS 5 SSHD is configured to allow for the "UsePAM" interface using the following command:

$ sudo /usr/sbin/sshd -dd 2>&1 | awk '/filename/ {print $4}' | tr -d '\r' | tr '\n' ' ' | xargs sudo grep -iH '^\s*usepam'

UsePAM yes

If the "UsePAM" keyword is set to "no", is missing, or is commented out, this is a finding.

Vulnerability Number

V-282504

Documentable

False

Rule Version

TOSS-05-000240

Severity Override Guidance

Verify the TOSS 5 SSHD is configured to allow for the "UsePAM" interface using the following command:

$ sudo /usr/sbin/sshd -dd 2>&1 | awk '/filename/ {print $4}' | tr -d '\r' | tr '\n' ' ' | xargs sudo grep -iH '^\s*usepam'

UsePAM yes

If the "UsePAM" keyword is set to "no", is missing, or is commented out, this is a finding.

Check Content Reference

M

Target Key

5738