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The Modify firmware environment values user right must only be assigned to the Administrators group.


Overview

Finding ID Version Rule ID IA Controls Severity
V-26498 WN12-UR-000034 SV-53029r2_rule Medium
Description
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.
STIG Date
Windows Server 2012/2012 R2 Member Server Security Technical Implementation Guide 2019-03-13

Details

Check Text ( C-47334r2_chk )
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 accounts or groups other than the following are granted the "Modify firmware environment values" user right, this is a finding:

Administrators
Fix Text (F-45955r2_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 accounts or groups:

Administrators