STIGQter: STIG Summary: Riverbed NetIM OS Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 11 Sep 2025:

Ubuntu OS must require the change of at least eight characters when passwords are changed.

DISA Rule

SV-275655r1148015_rule

Vulnerability Number

V-275655

Group Title

SRG-OS-000072-GPOS-00040

Rule Version

RIIM-OS-611040

Severity

CAT II

CCI(s)

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

Weight

10

Fix Recommendation

Configure Ubuntu OS to require the change of at least eight characters when passwords are changed.

Add or modify the following line in the "/etc/security/pwquality.conf" file:

difok = 8

Check Contents

Verify Ubuntu OS requires the change of at least eight characters when passwords are changed by using the following command:

$ grep -i difok /etc/security/pwquality.conf
difok = 8

If "difok" is less than "8", is commented out, or is missing, this is a finding.

Vulnerability Number

V-275655

Documentable

False

Rule Version

RIIM-OS-611040

Severity Override Guidance

Verify Ubuntu OS requires the change of at least eight characters when passwords are changed by using the following command:

$ grep -i difok /etc/security/pwquality.conf
difok = 8

If "difok" is less than "8", is commented out, or is missing, this is a finding.

Check Content Reference

M

Target Key

5706