Vulnerability Discussion
Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities.
Accounts with the "Modify firmware environment values" user right can change hardware configuration environment variables. This could result in hardware failures or a DoS.
Check
Verify the effective setting in Local Group Policy Editor.
Run "gpedit.msc".
Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment.
If any groups or accounts other than the following are granted the "Modify firmware environment values" user right, this is a finding:
Administrators
Fix
Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Modify firmware environment values" to only include the following groups or accounts:
Administrators