CVE-2016-0601 in MySQL Server
Summary
by MITRE
Unspecified vulnerability in Oracle MySQL 5.7.9 allows remote authenticated users to affect availability via unknown vectors related to Partition.
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Analysis
by VulDB Data Team • 11/02/2024
The vulnerability identified as CVE-2016-0601 represents a critical availability threat within Oracle MySQL database systems, specifically affecting version 5.7.9 and potentially earlier releases. This issue resides within the partitioning functionality of the database management system, creating a potential attack surface for remote authenticated adversaries who can leverage this weakness to disrupt database operations. The unspecified nature of the exact vector suggests that the flaw may manifest through multiple pathways within the partition handling mechanisms, making it particularly challenging to defend against without comprehensive understanding of the underlying implementation details. The vulnerability's classification as affecting availability rather than confidentiality or integrity indicates that attackers can potentially cause database downtime or service disruption rather than accessing or modifying data directly.
The technical implementation of MySQL partitioning involves complex data organization strategies where large datasets are divided into smaller, more manageable segments. When a vulnerability exists within this partitioning logic, it can lead to various failure modes including denial of service conditions, system crashes, or resource exhaustion that prevent legitimate database operations from completing successfully. The authentication requirement for exploitation suggests that attackers must first establish valid credentials to access the database system, but once authenticated, they can leverage this vulnerability to cause significant operational disruption. This weakness likely stems from insufficient input validation or improper state management during partition operations, potentially allowing crafted partition-related commands or data structures to trigger unexpected behavior in the database engine.
From an operational impact perspective, this vulnerability presents a substantial risk to database availability and business continuity, particularly in environments where MySQL serves as a critical data store for applications and services. Organizations utilizing MySQL 5.7.9 may experience unexpected database outages, performance degradation, or complete service unavailability when attackers exploit this partitioning vulnerability. The remote nature of the attack means that threat actors can potentially target these systems from external networks without requiring physical access or local system compromise. This vulnerability directly impacts the reliability of database services and can result in cascading effects throughout application systems that depend on MySQL for data persistence and retrieval operations.
Security professionals should consider this vulnerability in the context of the MITRE ATT&CK framework, where it aligns with the privilege escalation and denial of service tactics that attackers commonly employ to disrupt services. The CWE (Common Weakness Enumeration) mapping for such vulnerabilities typically falls under categories related to resource management failures or input validation issues within database systems. Organizations should implement immediate mitigations including applying Oracle's security patches, restricting database access through network segmentation, implementing robust monitoring for unusual partitioning operations, and conducting thorough security assessments of database configurations. Additionally, database administrators should consider disabling partitioning features when not required, implementing proper access controls, and establishing incident response procedures specifically designed to handle availability-related attacks targeting database systems. The vulnerability underscores the importance of maintaining up-to-date security patches and following secure configuration practices for database management systems to prevent exploitation of such critical weaknesses.