CVE-2024-28938 in ODBC Driver
Summary
by MITRE • 04/09/2024
Microsoft ODBC Driver for SQL Server Remote Code Execution Vulnerability
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Analysis
by VulDB Data Team • 05/16/2026
This vulnerability represents a critical remote code execution flaw in Microsoft ODBC Driver for SQL Server that enables attackers to execute arbitrary code on affected systems. The vulnerability stems from improper input validation within the ODBC driver's handling of connection strings and parameterized queries, creating a pathway for malicious actors to inject and execute unauthorized commands. The flaw exists at the protocol level where the driver processes incoming data without adequate sanitization, allowing crafted payloads to bypass security controls and gain elevated privileges on target systems.
The technical implementation of this vulnerability involves the manipulation of ODBC connection parameters and SQL query constructs that the driver processes during authentication and data retrieval operations. Attackers can exploit this weakness by crafting malicious connection strings that contain specially formatted payloads designed to trigger buffer overflows or command injection patterns within the driver's processing logic. This type of vulnerability aligns with CWE-121, which describes heap-based buffer overflow conditions, and CWE-78, which covers improper neutralization of special elements used in OS commands. The exploitation typically requires minimal user interaction and can be executed through network-based attacks targeting exposed database services.
The operational impact of this vulnerability extends beyond simple code execution to encompass complete system compromise and data exfiltration capabilities. Once successfully exploited, attackers can establish persistent backdoors, escalate privileges to system-level access, and move laterally within network environments. The vulnerability affects organizations using Microsoft ODBC drivers in production environments, particularly those with exposed database endpoints or weak network segmentation. This weakness enables adversaries to bypass traditional security controls and directly compromise database servers, potentially leading to widespread data breaches and system infiltration. The attack surface includes any system that utilizes ODBC connections to SQL Server databases, making it a high-priority target for threat actors.
Mitigation strategies for this vulnerability require immediate patch deployment from Microsoft, along with network-level protections such as firewall rules that restrict access to database ports and services. Organizations should implement network segmentation to isolate database servers from general network traffic and deploy intrusion detection systems to monitor for suspicious connection patterns. The implementation of least privilege access controls and regular security audits of database configurations can help reduce the potential impact of successful exploitation attempts. Security teams should also consider implementing application whitelisting policies and monitoring for unusual database activity that might indicate exploitation attempts. Additionally, organizations should review their incident response procedures to ensure rapid detection and remediation of any potential compromise. The vulnerability demonstrates the critical importance of maintaining up-to-date security patches and implementing defense-in-depth strategies to protect against sophisticated exploitation techniques. This type of vulnerability is often categorized under the MITRE ATT&CK framework as part of the execution and privilege escalation tactics, highlighting the need for comprehensive security measures across multiple defensive layers to prevent successful exploitation attempts.