Ubuntu OS must prevent the use of dictionary words for passwords.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-275653 | RIIM-OS-611030 | SV-275653r1148009_rule | CCI-000366 | medium |
| Description | ||||
| If Ubuntu OS allows the user to select passwords based on dictionary words, then this increases the chances of password compromise by increasing the opportunity for successful guesses and brute-force attacks. Satisfies: SRG-OS-000480-GPOS-00225, SRG-OS-000710-GPOS-00160 | ||||
| STIG | Date | |||
| Riverbed NetIM OS Security Technical Implementation Guide | 2025-10-02 | |||
Details
Check Text (C-275653r1148009_chk)
Verify Ubuntu OS prevents the use of dictionary words for passwords by using the following command:
$ grep -i dictcheck /etc/security/pwquality.conf
dictcheck = 1
If "dictcheck" is not set to "1", is commented out, or is missing, this is a finding.
Fix Text (F-79660r1148008_fix)
Configure Ubuntu OS to prevent the use of dictionary words for passwords.
Add or modify the following line in the "/etc/security/pwquality.conf" file:
dictcheck = 1