NixOS must not allow an unattended or automatic login to the system via the console.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| high | V-268172 | SRG-OS-000480-GPOS-00229 | ANIX-00-001880 | SV-268172r1039586_rule | 2024-10-25 | 1 |
| Description |
|---|
| Failure to restrict system access via the console to authenticated users negatively impacts operating system security. |
| ℹ️ Check |
|---|
| Verify NixOS does not allow an unattended or automatic login to the system via the console with the following command: $ grep -iR autologin.user /etc/nixos If "services.xserver.displayManager.autoLogin.user" is defined and is not "null", this is a finding. |
| ✔️ Fix |
|---|
| Configure the operating system to not allow an unattended or automatic login to the system via the console. Note: Once set, the system must be rebooted for any changes to apply. Add or update the following configuration in /etc/nixos/configuration.nix: services.xserver.displayManager.autoLogin.user = null; Rebuild the NixOS configuration with the following command: $ sudo nixos-rebuild switch |