CLR Integration

CLR (Common Language Runtime) integration allows you to create stored procedures, triggers, user-defined functions, types, and aggregates using any .NET Framework language in SQL Server. However, CLR integration is disabled by default for security reasons.

Enabling CLR integration can be useful for specific cases, but it can also introduce security risks. If CLR integration is enabled, CLR strict security should be turned on to minimize those risks.

Why CLR Integration Matters

  • Improved Functionality: CLR integration enables the use of .NET languages for SQL Server operations, providing enhanced functionality for certain applications.
  • Security Risks: If CLR integration is enabled without CLR strict security, it may expose SQL Server to vulnerabilities.
  • Performance Impact: Enabling CLR unnecessarily can affect performance, especially if not used in practice.

Suggested Action

  • If CLR integration is required, enable CLR strict security.

  • If CLR integration is not needed, it's best to disable it.

How to Disable CLR Integration

EXEC sys.sp_configure @configname = N'show advanced options', @configvalue = N'1';
RECONFIGURE;
GO
EXEC sp_configure 'clr enabled', 0;
RECONFIGURE WITH OVERRIDE;
GO
EXEC sys.sp_configure @configname = N'show advanced options', @configvalue = N'0';
RECONFIGURE;
GO

How to Enable CLR Strict Security

EXEC sys.sp_configure @configname = N'show advanced options', @configvalue = N'1';
RECONFIGURE;
GO
EXEC sp_configure 'clr strict security', 1;
RECONFIGURE WITH OVERRIDE;
GO
EXEC sys.sp_configure @configname = N'show advanced options', @configvalue = N'0';
RECONFIGURE;
GO

How Aireforge Detects CLR Integration Settings

Aireforge monitors whether CLR integration is enabled and flags if CLR strict security is not turned on. If CLR integration is not necessary, the system will recommend disabling it entirely to reduce potential security vulnerabilities.