CVE-2016-8289 in MySQL Server
Summary
by MITRE
Unspecified vulnerability in Oracle MySQL 5.7.13 and earlier allows local users to affect integrity and availability via vectors related to Server: InnoDB.
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Analysis
by VulDB Data Team • 09/25/2024
This vulnerability resides within Oracle MySQL database software version 5.7.13 and earlier, specifically affecting the InnoDB storage engine component that is integral to the server's operational integrity. The unspecified nature of the vulnerability indicates that the exact technical flaw has not been publicly detailed, though it is classified as a local privilege escalation issue that can compromise both data integrity and system availability. The vulnerability's impact is particularly concerning as it affects the core database engine responsible for transactional processing and data storage reliability. According to CWE classification, this would likely fall under CWE-269: Improper Privilege Management or CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization, given the InnoDB engine's multi-threaded nature and its role in database transactions.
The operational impact of this vulnerability extends beyond simple data corruption, as it can potentially allow malicious local users to manipulate database transactions in ways that compromise the ACID properties of database operations. When an attacker exploits this vulnerability, they could potentially modify database records without proper authorization, leading to data integrity breaches that might go undetected for extended periods. The availability aspect of the compromise means that database services could become unstable or even crash, resulting in denial of service conditions that would impact legitimate database users and applications dependent on the MySQL server. This vulnerability represents a significant risk in environments where local access is not properly restricted, as it could enable attackers to escalate privileges within the database system.
From an attack perspective, the vulnerability operates at the database server level and requires local system access to exploit effectively, which limits its scope but does not eliminate its danger. The InnoDB engine's architecture, which handles row-level locking, transaction management, and crash recovery, becomes a potential attack surface that could be leveraged to cause cascading failures throughout the database system. Organizations using affected MySQL versions should consider this vulnerability as part of their broader security posture assessment, particularly in environments where least privilege principles are not strictly enforced. The ATT&CK framework would classify this vulnerability under privilege escalation techniques, specifically targeting the database service itself through weaknesses in the storage engine's access controls.
Mitigation strategies should include immediate patching of affected MySQL installations to version 5.7.14 or later, which would address the underlying vulnerability in the InnoDB engine. System administrators should also implement strict access controls to limit local system access to database servers, ensuring that only authorized personnel have the ability to execute code or access system resources. Database monitoring should be enhanced to detect unusual transaction patterns or access attempts that might indicate exploitation attempts. Additional protective measures include implementing network segmentation to isolate database servers, regularly reviewing system access logs for unauthorized activity, and maintaining up-to-date security configurations that align with the principle of least privilege. Organizations should also consider implementing database activity monitoring solutions that can detect anomalous behavior patterns indicative of privilege escalation attempts. The vulnerability underscores the critical importance of maintaining current software versions and implementing comprehensive access control policies for database environments.