Ensure no login exists with the name 'sa'

中レベル 1自動mssql

説明

The sa login (e.g. principal) is a widely known and often widely used SQL Server account. Therefore, there should not be a login called sa even when the original sa login (principal_id = 1) has been renamed. Enforcing this control reduces the probability of an attacker executing brute force attacks against a well-known principal name.

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 COUNT(*) FROM sys.server_principals WHERE name = 'sa';"

期待される出力: 0

修正方法

修正方法: ガイダンスまたは IaC パッチ

Execute the appropriate ALTER statement below based on the principal_id returned for the login named sa. Replace the <different_name> value within the below syntax and execute to rename the sa login. USE [master] GO -- If principal_id = 1 or the login owns database objects, rename the sa login ALTER LOGIN [sa] WITH NAME = <different_name>; GO

プロパティ

オペレーティングシステム: すべて
タグ: loggingmssqlsqlserver-2022
参照: CIS Microsoft SQL Server 2022 Benchmark v1.3.0 - 2.16 Ensure no login exists with the name 'sa'

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