NixOS must require the change of at least 50 percent of the total number of characters when passwords are changed.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-268129 | ANIX-00-000760 | SV-268129r1039275_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. |
| STIG | Date |
| Anduril NixOS Security Technical Implementation Guide | 2024-10-25 |
Details
| Check Text (C-72053r1039273_chk) |
| Verify NixOS enforces password complexity by requiring that at least 50 percent of the characters are changed with the following command: $ grep difok /etc/security/pwquality.conf difok=8 If the value of "difok" is set to less than "8", or is commented out, this is a finding. |
| Fix Text (F-71956r1039274_fix) |
| Configure NixOS to enforce password complexity. Add/modify /etc/nixos/configuration.nix to include the following lines: environment.etc."/security/pwquality.conf".text = '' difok=8 ''; Rebuild the system with the following command: $ sudo nixos-rebuild switch |