Protect Your SQL Server Databases: Microsoft SQL Server Remote Code Execution Vulnerability

CVSScvssV3_1: 8.8

Microsoft SQL Server is a popular database management system used by many organizations worldwide. Unfortunately, researchers recently discovered a remote code execution vulnerability in the Windows Data Access Components (WDAC) OLE DB provider used to connect to SQL Server databases.

The vulnerability, tracked as CVE-2024-21375, exists due to how the WDAC OLE DB provider handles objects in memory. A remote attacker could craft a specially crafted request that takes advantage of this issue to execute arbitrary code on the system with the privileges of the SQL Server service. This would allow the attacker to install programs, view, change or delete data, and create new accounts with full user rights.

Since the vulnerability resides in the OLE DB provider used to connect to SQL Server databases, any application or service that uses this component could be affected. This leaves SQL Server deployments vulnerable even if direct logins to the database server are restricted.

To protect yourself, make sure your SQL Server deployment and applications are fully patched with the latest updates from Microsoft. These address the specific vulnerability and help prevent remote code execution. You should also consider disabling direct connections to SQL Server from untrusted networks and limiting account privileges to only what is required. Following basic security practices can go a long way in protecting your critical database systems.