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Unauthorized accounts must not have the Modify firmware environment values user right.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-26498 | WN12-UR-000034 | SV-53029r1_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 Domain Controller Security Technical Implementation Guide | 2016-12-19 |
Details
| Check Text ( C-47334r1_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-45955r1_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 |