TMA-MSSQL-3.14
Ensure 'Control Server' permission is not granted
Beschreibung
The Control Server permission is a highly privileged server-level permission in SQL Server database engine. Moreover, even though this permission is not as powerful as SYSADMIN role, it has almost most of the permissions of SYSADMIN role. Also, database logins granted control server permission can easily elevate to SYSADMIN role through different exploit techniques which is a serious security problem.
So wird geprüft
Prüfmethode: Manuelle Prüfung
Diese Empfehlung kann nicht automatisch geprüft werden. Ein Scan führt sie mit diesen Anweisungen auf, wenn Sie --include-manual übergeben.
Execute this SQL query to list all SQL Server logins with Control Server permission: SELECT sys.server_permissions.type, sys.server_permissions.permission_name, sys.server_permissions.state, sys.server_permissions.state_desc, granteeserverprincipal.name AS grantee_principal_name, granteeserverprincipal.type_desc AS grantee_principal_type_desc, grantorserverprinicipal.name AS grantor_name, CASE WHEN sys.server_permissions.state = N'W' THEN N'GRANT' ELSE sys.server_permissions.state_desc END + N' ' + sys.server_permissions.permission_name COLLATE SQL_Latin1_General_CP1_CI_AS + N' TO ' + ...
So wird behoben
Behebungsmethode: Anleitung oder Infrastruktur-Patch
Remove any un-allowed SQL Server accounts which are granted Control Server using this query: use [master] GO REVOKE CONTROL SERVER FROM [%login%]
Eigenschaften
- Betriebssysteme
- Beliebig
- Tags
- mssqldatabasemanual
- Referenz
- CIS Microsoft SQL Server 2025 Benchmark v1.0.0 - 3.14 Ensure 'Control Server' permission is not granted