TMA-MSSQL-2.3

Ensure 'Cross DB Ownership Chaining' Server Configuration Option is set to '0'

中レベル 1自動mssql

説明

The cross db ownership chaining option controls cross-database ownership chaining across all databases at the instance (or server) level. Both value and value_in_use must equal 0. Default: By default, this option is disabled (0). Runs one sqlcmd query with its defaults (Windows authentication to the local default instance); set SQLCMDSERVER, SQLCMDUSER and SQLCMDPASSWORD for another instance or SQL authentication. Needs VIEW SERVER STATE / sysadmin-level read access.

チェック方法

監査方法: SQL クエリ

sql_query

sqlcmd -b -h -1 -W -Q "SET NOCOUNT ON; SELECT CASE WHEN CAST(value AS int) = 0 AND CAST(value_in_use AS int) = 0 THEN 'compliant' ELSE 'noncompliant' END FROM sys.configurations WHERE name = 'cross db ownership chaining';"

期待される出力: compliant

修正方法

修正方法: SQL ステートメント

shell

sqlcmd -b -h -1 -W -Q "SET NOCOUNT ON; EXEC sp_configure 'show advanced options', 1; RECONFIGURE; EXEC sp_configure 'cross db ownership chaining', 0; RECONFIGURE; EXEC sp_configure 'show advanced options', 0; RECONFIGURE;"

プロパティ

オペレーティングシステム: すべて
タグ: mssqldatabasesurface-area
参照: CIS Microsoft SQL Server 2025 Benchmark v1.0.0 - 2.3 Ensure 'Cross DB Ownership Chaining' Server Configuration Option is set to '0'

このホストをチェック

監査が許可されているマシンで実行してください。スキャンは読み取り専用です。

shell

tmaegis scan --target mssql