NixOS must provide the capability for users to directly initiate a session lock for all connection types.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-268087 | ANIX-00-000120 | SV-268087r1039606_rule | Medium |
| Description |
| A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not want to log out because of the temporary nature of the absence. The session lock is implemented at the point where session activity can be determined. Rather than be forced to wait for a period of time to expire before the user session can be locked, operating systems need to provide users with the ability to manually invoke a session lock so users may secure their session should the need arise for them to temporarily vacate the immediate physical vicinity. Satisfies: SRG-OS-000030-GPOS-00011, SRG-OS-000028-GPOS-00009, SRG-OS-000031-GPOS-00012 |
| STIG | Date |
| Anduril NixOS Security Technical Implementation Guide | 2024-10-25 |
Details
| Check Text (C-72011r1039147_chk) |
| Verify the NixOS operating system has the "vlock" package installed by running the following command: $ nix-store --query --requisites /run/current-system | cut -d- -f2- | sort | uniq | grep vlock vlock-2.2.2 If the "vlock" package is not installed, this is a finding. |
| Fix Text (F-71914r1039606_fix) |
| Configure NixOS to have a package that allows user to lock session. Add the following Nix code to the NixOS Configuration, usually located in /etc/nixos/configuration.nix: environment.systemPackages = [ pkgs.vlock ]; Rebuild the NixOS configuration with the following command: $ sudo nixos-rebuild switch |