Unauthorized accounts must not have the Modify firmware environment values user right.

From Windows Server 2012/2012 R2 Member Server Security Technical Implementation Guide

Part of Modify firmware environment values

Associated with: CCI-002235

SV-53029r1_rule Unauthorized accounts must not have the Modify firmware environment values user right.

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 content

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

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

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