Ensure 'Remote Admin Connections' Server Configuration Option is set to '0'

MediaNivel 1Automatizadamssql

Descripción

The remote admin connections option controls whether a client application on a remote computer can use the Dedicated Administrator Connection (DAC). The Dedicated Administrator Connection (DAC) lets an administrator access a running server to execute diagnostic functions or Transact-SQL statements, or to troubleshoot problems on the server, even when the server is locked or running in an abnormal state and not responding to a SQL Server Database Engine connection. In a cluster scenario, the administrator may not actually be logged on to the same node that is currently hosting the SQL Server instance and thus is considered "remote". Therefore, this setting should usually be enabled (1) for SQL Server failover clusters; otherwise, it should be disabled (0) which is the default.

Cómo se verifica

Método de auditoría: Consulta SQL

sql_query

sqlcmd -b -h -1 -W -Q "SET NOCOUNT ON; SELECT CASE WHEN CAST(SERVERPROPERTY('IsClustered') AS int) = 1 THEN 'compliant' WHEN EXISTS (SELECT 1 FROM sys.configurations WHERE name = 'remote admin connections' AND CAST(value AS int) = 0 AND CAST(value_in_use AS int) = 0) THEN 'compliant' ELSE 'noncompliant' END;"

Salida esperada: compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

Run the following T-SQL command on non-clustered installations: EXECUTE sp_configure 'remote admin connections', 0; RECONFIGURE; GO

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: mssqlsqlserver-2022
Referencia: CIS Microsoft SQL Server 2022 Benchmark v1.3.0 - 2.7 Ensure 'Remote Admin Connections' Server Configuration Option is set to '0'

Verificar este host

Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.

shell

tmaegis scan --target mssql