STIGQter: STIG Summary: Microsoft Windows Server 2016 Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 04 May 2021:

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

DISA Rule

SV-225087r569186_rule

Vulnerability Number

V-225087

Group Title

SRG-OS-000324-GPOS-00125

Rule Version

WN16-UR-000270

Severity

CAT II

CCI(s)

• CCI-002235 - The information system prevents non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures.

Weight

10

Fix Recommendation

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Modify firmware environment values" to include only the following accounts or groups:

- Administrators

Check Contents

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

For server core installations, run the following command:

Secedit /Export /Areas User_Rights /cfg c:\path\filename.txt

Review the text file.

If any SIDs other than the following are granted the "SeSystemEnvironmentPrivilege" user right, this is a finding.

S-1-5-32-544 (Administrators)

Vulnerability Number

V-225087

Documentable

False

Rule Version

WN16-UR-000270

Severity Override Guidance

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

For server core installations, run the following command:

Secedit /Export /Areas User_Rights /cfg c:\path\filename.txt

Review the text file.

If any SIDs other than the following are granted the "SeSystemEnvironmentPrivilege" user right, this is a finding.

S-1-5-32-544 (Administrators)

Check Content Reference

M

Target Key

4205

Comments