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

DISA Rule

SV-282448r1200324_rule

Vulnerability Number

V-282448

Group Title

SRG-OS-000070-GPOS-00038

Rule Version

TOSS-05-000339

Severity

CAT II

CCI(s)

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

Weight

10

Fix Recommendation

Configure TOSS 5 to enforce password complexity by requiring at least one lowercase character be used by setting the "lcredit" option.

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

lcredit = -1

Check Contents

Verify TOSS 5 enforces password complexity by requiring at least one lowercase character.

Check the value for "lcredit" using the following command:

$ sudo grep lcredit /etc/security/pwquality.conf /etc/security/pwquality.conf/*.conf

/etc/security/pwquality.conf:lcredit = -1

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

Vulnerability Number

V-282448

Documentable

False

Rule Version

TOSS-05-000339

Severity Override Guidance

Verify TOSS 5 enforces password complexity by requiring at least one lowercase character.

Check the value for "lcredit" using the following command:

$ sudo grep lcredit /etc/security/pwquality.conf /etc/security/pwquality.conf/*.conf

/etc/security/pwquality.conf:lcredit = -1

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

Check Content Reference

M

Target Key

5738