Ensure no admin role membership in MSDB database

SrednjaNivo 1Automatskamssql

Opis

Based on Microsoft design an account with DB_OWNER can elevate permissions to SYSADMIN MSDBmust be configured with the TRUSTWORTHY flag ON to work properly. If the TRUSTWORTHY setting is set to ON, and if the owner of the database is a member of a group that has administrative credentials, such as the sysadmin group (for example the default sa login), the database owner can then be able to create and run unsafe assemblies that can compromise the instance of the SQL Server, as well as run code to elevate his privileges to SYSADMIN

Kako se proverava

Metod provere: SQL upit

sql_query

sqlcmd -b -h -1 -W -Q "SET NOCOUNT ON; SELECT COUNT(*) FROM msdb.sys.database_role_members AS drm JOIN msdb.sys.database_principals AS r ON drm.role_principal_id = r.principal_id JOIN msdb.sys.database_principals AS m ON drm.member_principal_id = m.principal_id WHERE r.name IN ('db_owner','db_securityadmin','db_ddladmin','db_datawriter') AND m.name <> 'dbo';"

Očekivani izlaz: 0

Kako se ispravlja

Metod ispravke: Smernica ili zakrpa infrastrukture

USE [msdb] GO ALTER ROLE [db_owner] DROP MEMBER <username>;

Svojstva

Operativni sistemi: Bilo koji
Oznake: iammssqlsqlserver-2022
Referenca: CIS Microsoft SQL Server 2022 Benchmark v1.3.0 - 3.13 Ensure no admin role membership in MSDB database

Proverite ovaj računar

Pokrenite ovo na računaru za koji imate dozvolu za proveru. Skeniranje radi u režimu samo za čitanje.

shell

tmaegis scan --target mssql