AlmaLinux OS 9 must require the change of at least four character classes when passwords are changed.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-269394 | ALMA-09-036760 | SV-269394r1050277_rule | Medium |
| Description |
| Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised. |
| STIG | Date |
| CloudLinux AlmaLinux OS 9 Security Technical Implementation Guide | 2025-05-22 |
Details
| Check Text (C-73425r1048558_chk) |
| Verify the value of the "minclass" option in "/etc/security/pwquality.conf" with the following command: $ grep -ir minclass /etc/security/pwquality.conf* /etc/security/pwquality.conf:# minclass = 0 /etc/security/pwquality.conf.d/stig.conf:minclass = 4 If the value of "minclass" is set to less than "4", or is commented out, this is a finding. |
| Fix Text (F-73326r1049622_fix) |
| Configure AlmaLinux OS 9 to require the change of at least four character classes when passwords are changed by setting the "minclass" option. Add the following line to "/etc/security/pwquality.conf" (or modify the line to have the required value): minclass = 4 |