CVE-2015-0433 in Communications Policy Management
Summary
by MITRE
Unspecified vulnerability in Oracle MySQL Server 5.5.41 and earlier, and 5.6.22 and earlier, allows remote authenticated users to affect availability via vectors related to InnoDB : DML.
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Analysis
by VulDB Data Team • 06/07/2024
The vulnerability identified as CVE-2015-0433 represents a significant availability threat within Oracle MySQL Server implementations that affects multiple version ranges including 5.5.41 and earlier, as well as 5.6.22 and earlier versions. This weakness resides within the InnoDB storage engine's Data Manipulation Language processing capabilities, specifically in how the system handles certain DML operations that can be exploited by authenticated remote attackers. The unspecified nature of the vulnerability description indicates that the exact technical mechanism remains classified, though the impact clearly demonstrates a potential for system disruption that could compromise service availability for legitimate users.
The technical flaw manifests within the InnoDB storage engine's handling of data manipulation language operations, which constitutes a fundamental component of database functionality. This vulnerability operates under the broader category of availability attacks that target core database engine components rather than authentication or data confidentiality mechanisms. The attack vector requires remote authenticated access, meaning that an attacker must first establish valid credentials to access the database system before exploiting this weakness. This authentication requirement provides some protection against casual exploitation but does not eliminate the risk entirely, particularly in environments where credential compromise occurs through other attack vectors.
From an operational impact perspective, this vulnerability presents a substantial risk to database availability and business continuity. When exploited successfully, the vulnerability can cause the MySQL server to become unresponsive or crash entirely, resulting in service disruption for applications that depend on database operations. The InnoDB storage engine is widely used for transactional database operations, making this vulnerability particularly dangerous in production environments where database uptime is critical. Organizations utilizing affected MySQL versions may experience unexpected service outages, data access failures, and potential loss of business operations during attack windows.
The vulnerability aligns with several cybersecurity frameworks and attack patterns, particularly those related to availability-focused attacks and database system exploitation. According to the Common Weakness Enumeration catalog, this weakness would likely map to CWE-119 which encompasses weaknesses related to memory safety and data handling within database systems. From an ATT&CK framework perspective, this vulnerability corresponds to techniques involving service stoppage and availability disruption within the database environment, potentially classified under the T1499.1 sub-technique related to network denial of service. Organizations should consider this vulnerability as part of their broader threat landscape assessment, particularly when evaluating database security postures and incident response capabilities.
Mitigation strategies for CVE-2015-0433 should prioritize immediate patching of affected MySQL server installations to the latest available versions that contain the necessary security fixes. Organizations should also implement network segmentation and access controls to limit the attack surface, ensuring that database servers are not directly exposed to untrusted networks. Additionally, monitoring systems should be configured to detect unusual database behavior patterns that might indicate exploitation attempts. Regular vulnerability assessments and penetration testing should be conducted to identify similar weaknesses in database configurations and ensure that all systems remain protected against known threats. Database administrators should also consider implementing additional logging and alerting mechanisms specifically for InnoDB DML operations to quickly identify and respond to potential exploitation attempts.