CVE-2024-29985 in OLE DB Driver
Summary
by MITRE • 04/09/2024
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-2024-29985 vulnerability represents a critical remote code execution flaw within Microsoft OLE DB Driver for SQL Server, a component widely utilized for database connectivity and data access operations across enterprise environments. This vulnerability stems from improper input validation within the driver's handling of specific database connection parameters, creating an avenue for malicious actors to execute arbitrary code on affected systems. The flaw specifically manifests when the driver processes certain malformed connection strings or database query parameters, potentially allowing attackers to bypass authentication mechanisms and gain unauthorized access to underlying database resources. Security researchers have identified that the vulnerability exists in multiple versions of the OLE DB Driver, with the most significant impact occurring in environments where the driver is used for database connectivity without proper network segmentation or access controls.
The technical exploitation of CVE-2024-29985 involves crafting specially malformed database connection requests that trigger buffer overflow conditions or improper memory handling within the OLE DB Driver component. This vulnerability aligns with CWE-121, which describes heap-based buffer overflow conditions, and CWE-787, which addresses out-of-bounds write vulnerabilities. Attackers can leverage this weakness through various attack vectors including web applications that utilize the driver for database connections, middleware services, or direct database access points. The vulnerability's remote execution capability means that attackers do not require local system access to exploit the flaw, making it particularly dangerous in networked environments where database connections are exposed to external networks. The exploitation process typically involves sending maliciously formatted connection parameters that cause the driver to improperly handle memory allocation, leading to code execution at the privilege level of the affected service account.
Organizational impact of CVE-2024-29985 extends beyond immediate data compromise to encompass potential system-wide infiltration and lateral movement within network environments. The vulnerability creates opportunities for attackers to escalate privileges and access additional database resources, potentially leading to complete system compromise when database servers contain sensitive information or serve as central points for enterprise data access. Security frameworks such as MITRE ATT&CK can be applied to categorize this vulnerability under techniques like T1071.004 for application layer protocols and T1190 for exploitation of remote services, highlighting the multi-stage attack patterns that may emerge from successful exploitation. Organizations using the affected OLE DB Driver versions face significant risk exposure, particularly those with database servers accessible from untrusted networks or those lacking proper network monitoring and intrusion detection capabilities. The vulnerability's impact is amplified in environments where the driver is used in conjunction with other Microsoft products, as attackers may leverage the compromised driver to gain access to additional Microsoft services and resources.
Mitigation strategies for CVE-2024-29985 require immediate patch deployment from Microsoft, which addresses the underlying input validation flaws in the OLE DB Driver component. Organizations should prioritize updating to the latest driver versions that contain the necessary security fixes, while simultaneously implementing network segmentation to limit access to database servers and reduce the attack surface. Additional protective measures include implementing strict database connection string validation, monitoring for anomalous database access patterns, and configuring firewalls to restrict access to database ports from trusted sources only. Security professionals should also consider implementing database activity monitoring solutions that can detect and alert on suspicious connection attempts or query patterns that may indicate exploitation attempts. The vulnerability underscores the importance of maintaining current security patches and implementing defense-in-depth strategies that combine multiple security controls to protect against exploitation attempts. Organizations should conduct thorough vulnerability assessments to identify all systems utilizing the affected driver versions and establish incident response procedures specifically tailored to address potential exploitation of this remote code execution vulnerability.