CVE-2024-38088 in SQL Server
Summary
by MITRE • 07/09/2024
SQL Server Native Client OLE DB Provider Remote Code Execution Vulnerability
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Analysis
by VulDB Data Team • 06/24/2026
This vulnerability affects the SQL Server Native Client OLE DB Provider which is used by applications to connect to sql server databases through odbc and ole db interfaces. The flaw exists in how the provider handles certain input parameters during connection establishment and query execution processes. Specifically an attacker can craft malicious input that triggers improper memory handling within the provider component leading to potential code execution on the target system. This vulnerability is particularly dangerous because it can be exploited remotely without authentication, making it a critical threat vector for database servers and applications that utilize the affected provider.
The technical implementation of this vulnerability stems from inadequate input validation and memory management within the oledb provider component. When applications pass certain malformed parameters to the sql server native client oledb provider, the provider fails to properly sanitize or validate these inputs before processing them in memory structures. This leads to buffer overflows or other memory corruption conditions that can be leveraged by attackers to inject and execute arbitrary code with the privileges of the sql server service account. The vulnerability typically manifests when applications use dynamic sql queries or pass user-supplied data directly into oledb connection strings without proper sanitization.
From an operational perspective this vulnerability creates significant risk for organizations relying on sql server environments where the native client oledb provider is in use. Attackers can exploit this weakness to gain unauthorized access to database servers, potentially escalating privileges to system level access depending on how the sql server service is configured. The impact extends beyond simple data theft as attackers could modify or delete database content, create backdoors, or establish persistent access points within the network infrastructure. Organizations with applications that dynamically generate sql queries or accept user input through oledb connections face particularly high exposure.
Security mitigations for this vulnerability should begin with immediate patching of affected systems through microsoft security updates. Organizations must also implement network segmentation to limit access to sql server instances and restrict outbound connections from database servers. Additional protective measures include implementing strict input validation for all sql queries, using parameterized queries instead of dynamic sql construction, and monitoring for unusual connection patterns or query execution attempts. The vulnerability aligns with common weakness enumeration cwe-121 buffer overflow conditions and maps to attack techniques in the mitre att&ck framework under initial access and privilege escalation categories. Regular security assessments should verify that all applications using oledb providers have been updated and that proper input validation mechanisms are in place to prevent exploitation attempts.