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 enforce password complexity by requiring that at least one uppercase character be used.

DISA Rule

SV-253060r1016310_rule

Vulnerability Number

V-253060

Group Title

SRG-OS-000069-GPOS-00037

Rule Version

TOSS-04-040050

Severity

CAT II

CCI(s)

• CCI-004066 - For password-based authentication, enforce organization-defined composition and complexity rules.

Weight

10

Fix Recommendation

Configure the operating system to enforce password complexity by requiring that at least one uppercase character be used by setting the "ucredit" option.

Add the following line to /etc/security/pwquality.conf (or modify the line to have the required value):

ucredit = -1

Check Contents

Verify the value for "ucredit" in "/etc/security/pwquality.conf" with the following command:

$ sudo grep ucredit /etc/security/pwquality.conf
ucredit = -1

If the value of "ucredit" is a positive number or is commented out, this is a finding.

Vulnerability Number

V-253060

Documentable

False

Rule Version

TOSS-04-040050

Severity Override Guidance

Verify the value for "ucredit" in "/etc/security/pwquality.conf" with the following command:

$ sudo grep ucredit /etc/security/pwquality.conf
ucredit = -1

If the value of "ucredit" is a positive number or is commented out, this is a finding.

Check Content Reference

M

Target Key

5469