NixOS must require the change of at least 50 percent of the total number of characters when passwords are changed.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-268129 | SRG-OS-000072-GPOS-00040 | ANIX-00-000760 | SV-268129r1039275_rule | 2024-10-25 | 1 |
| 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. |
| ℹ️ Check |
|---|
| 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 |
|---|
| 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 |