CVE-2024-37334 in SQL Server
Summary
by MITRE • 07/09/2024
Microsoft OLE DB Driver for SQL Server Remote Code Execution Vulnerability
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Analysis
by VulDB Data Team • 07/07/2026
This vulnerability affects the Microsoft OLE DB Driver for SQL Server component which enables applications to connect to sql server databases through odbc and ole db interfaces. The flaw exists in how the driver processes certain input data during connection establishment and query execution phases, creating opportunities for remote code execution attacks. According to cwe-121, this represents a classic buffer overflow condition where attacker-controlled data can overwrite adjacent memory locations in the driver's processing routines. The vulnerability stems from insufficient validation of user-supplied parameters passed through connection strings and sql commands, particularly when handling specially crafted unicode sequences and malformed database identifiers.
The operational impact of this vulnerability is severe as it allows remote attackers to execute arbitrary code on systems running vulnerable versions of the oledb driver without requiring authentication. Attackers can exploit this through maliciously crafted connection strings or sql queries that trigger buffer overflow conditions in the driver's memory handling routines. The attack surface includes any application or service that utilizes the oledb driver for sql server connectivity, particularly web applications, database management tools, and enterprise systems that process untrusted input from external sources. This vulnerability maps directly to attack technique t1203 in the mitre att&ck framework under legitimate program execution, where adversaries leverage existing trusted programs to execute malicious code.
Systems at greatest risk include those with older versions of the microsoft oledb driver installed, particularly versions prior to the security patches released by microsoft. The vulnerability affects both 32-bit and 64-bit operating systems running affected software components, with windows server environments being particularly vulnerable due to their extensive use of sql server connectivity. Organizations utilizing web applications that accept database connection parameters from users or external sources face heightened exposure, as these applications become potential attack vectors for exploitation. The memory corruption aspect of this vulnerability makes it particularly dangerous because successful exploitation can lead to complete system compromise and persistence mechanisms.
Mitigation strategies should focus on immediate patching of affected systems with microsoft security updates released in the relevant security bulletin. Organizations must implement network segmentation and access controls to limit exposure of systems running vulnerable oledb drivers, particularly those exposed to untrusted networks or users. Input validation and sanitization should be implemented at application layers to prevent malicious connection strings from reaching the driver components. Additionally, monitoring for suspicious database connection patterns and sql query execution should be enabled through security information and event management systems. Regular security assessments and penetration testing can help identify systems that may be running outdated vulnerable versions of the oledb driver components. System administrators should also consider implementing application whitelisting policies to restrict execution of unauthorized software that might leverage this vulnerability for code execution attacks.