STIGQter: STIG Summary: Tri-Lab Operating System Stack (TOSS) 4 Security Technical Implementation Guide Version: 2 Release: 6 Benchmark Date: 01 Jul 2026:

TOSS must not allow accounts configured with blank or null passwords.

DISA Rule

SV-252966r991589_rule

Vulnerability Number

V-252966

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

TOSS-04-020270

Severity

CAT I

CCI(s)

• CCI-000366 - Implement the security configuration settings.

Weight

10

Fix Recommendation

Edit the following line in "etc/ssh/sshd_config" to prevent logons with empty passwords.

PermitEmptyPasswords no

The SSH daemon must be restarted for the changes to take effect. To restart the SSH daemon, run the following command:

$ sudo systemctl restart sshd.service

Check Contents

To verify that null passwords cannot be used, run the following command:

$ sudo grep -i permitemptypasswords /etc/ssh/sshd_config

PermitEmptyPasswords no

If "PermitEmptyPasswords" is set to "yes", this is a finding.

Vulnerability Number

V-252966

Documentable

False

Rule Version

TOSS-04-020270

Severity Override Guidance

To verify that null passwords cannot be used, run the following command:

$ sudo grep -i permitemptypasswords /etc/ssh/sshd_config

PermitEmptyPasswords no

If "PermitEmptyPasswords" is set to "yes", this is a finding.

Check Content Reference

M

Target Key

5469