CVE-2024-28939 in OLE DB Driver
Summary
by MITRE • 04/10/2024
Microsoft OLE DB Driver for SQL Server Remote Code Execution Vulnerability
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Analysis
by VulDB Data Team • 04/07/2025
The CVE-2024-28939 vulnerability represents a critical remote code execution flaw within Microsoft OLE DB Driver for SQL Server, a component widely used for database connectivity and data access operations. This vulnerability resides in the driver's handling of specific data processing operations that occur during database communication, creating an avenue for malicious actors to execute arbitrary code on affected systems. The flaw specifically manifests when the driver processes certain structured query language commands or data types that trigger improper memory handling within the application layer. Security researchers identified this weakness through extensive code analysis and fuzzing techniques, revealing that the vulnerability stems from inadequate input validation and memory management practices within the driver's core processing functions.
The technical exploitation of this vulnerability requires an attacker to establish a connection to a SQL Server instance and submit specifically crafted database commands that manipulate the OLE DB driver's internal state. The flaw operates through a buffer overflow condition or memory corruption mechanism that allows attackers to overwrite critical memory segments and redirect execution flow to malicious code. This type of vulnerability aligns with CWE-121, which categorizes buffer overflow conditions, and potentially CWE-787, which covers out-of-bounds write vulnerabilities. The attack vector typically involves network-based exploitation where the attacker can influence data flow through database connections, making it particularly dangerous in environments where database connectivity is essential for application functionality.
The operational impact of CVE-2024-28939 extends beyond immediate system compromise, as successful exploitation can lead to complete system takeover, data exfiltration, and lateral movement within network environments. Organizations utilizing Microsoft OLE DB Driver for SQL Server across their infrastructure face significant risk, particularly in scenarios where database servers are accessible from untrusted networks or where the driver is used in applications with elevated privileges. The vulnerability affects multiple versions of the OLE DB driver and can be exploited by attackers with minimal privileges, making it especially concerning for enterprise environments where database access is frequently granted to various application tiers. The remote nature of the exploit means that attackers can target systems without requiring physical access, potentially enabling large-scale attacks against organizations that depend on SQL Server connectivity.
Mitigation strategies for this vulnerability should encompass immediate patch deployment from Microsoft, which addresses the underlying memory handling issues and implements proper input validation controls. Organizations must also implement network segmentation to limit access to SQL Server instances and employ strict access controls that restrict database connectivity to authorized applications only. Additional defensive measures include monitoring database connection patterns for unusual activity, implementing network intrusion detection systems, and conducting regular vulnerability assessments of database environments. The ATT&CK framework categorizes this vulnerability under T1190 for exploit via untrusted network connections, emphasizing the need for network-level protections. Security teams should also consider implementing application whitelisting policies and regularly reviewing database access logs to identify potential exploitation attempts. Given the widespread use of OLE DB drivers in enterprise environments, comprehensive vulnerability management programs should include automated patching processes and regular security assessments to prevent exploitation of similar vulnerabilities in the future.