NixOS must require users to reauthenticate when changing roles.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-268156SRG-OS-000480-GPOS-00227ANIX-00-001510SV-268156r1039539_rule2024-10-251
Description
Without reauthentication, users may access resources or perform tasks for which they do not have authorization. When operating systems provide the capability to change security roles, it is critical the user reauthenticate.
ℹ️ Check
Verify NixOS requires users to reauthenticate when changing roles with the following command: $ grep -iR wheelneedspassword /etc/nixos/ /etc/nixos/configuration.nix:security.sudo.wheelNeedsPassword = true; If the returned line does not have a value of "true" or is commented out, this is a finding.
✔️ Fix
Configure NixOS to require reauthentication for sudo by editing the /etc/nixos/configuration.nix with the following: security.sudo.wheelNeedsPassword = true; Rebuild the system configuration with the following command: $ sudo nixos-rebuild switch