CVE-2014-6530 in MySQL Server
Summary
by MITRE
Unspecified vulnerability in Oracle MySQL Server 5.5.38 and earlier, and 5.6.19 and earlier, allows remote authenticated users to affect confidentiality, integrity, and availability via vectors related to CLIENT:MYSQLDUMP.
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Analysis
by VulDB Data Team • 02/23/2022
The vulnerability identified as CVE-2014-6530 represents a significant security flaw within Oracle MySQL Server affecting versions 5.5.38 and earlier, as well as 5.6.19 and earlier. This issue resides within the client-side mysql dump functionality and permits remote authenticated attackers to compromise the confidentiality, integrity, and availability of the affected systems. The unspecified nature of the vulnerability's exact mechanism makes it particularly concerning as it could potentially encompass multiple attack vectors or exploit techniques that leverage the mysql dump client component.
The technical flaw manifests through the client-side mysql dump utility which is commonly used for backing up and restoring database content. When authenticated users connect to the MySQL server and utilize the mysql dump functionality, they can potentially trigger this vulnerability that affects the underlying database operations. This vulnerability specifically targets the interaction between the client and server components during dump operations, allowing attackers who have already established authentication credentials to escalate their privileges or disrupt normal operations. The impact spans across all three fundamental principles of information security as outlined in the CIA triad, meaning that unauthorized disclosure of sensitive data, modification of database content, and disruption of service availability can all occur through this vector.
From an operational perspective, this vulnerability creates substantial risk for organizations relying on MySQL databases as it allows attackers with legitimate access credentials to potentially cause widespread damage. The remote aspect of the vulnerability means that attackers do not need physical access to the system and can exploit this weakness from external networks. The fact that it affects both major version lines 5.5 and 5.6 indicates a widespread issue that would impact numerous installations across different environments. Attackers could leverage this vulnerability to extract sensitive database information, modify critical data, or potentially cause denial of service conditions that could impact business operations and data integrity.
The vulnerability's classification aligns with CWE-119 which addresses improper restriction of operations within a memory buffer, suggesting potential memory handling issues during the mysql dump process. This vulnerability also relates to ATT&CK technique T1078 which covers valid accounts and T1499 which covers endpoint disruption, as the attack requires authenticated access but can result in service disruption and data manipulation. Organizations should prioritize immediate patching of affected systems and implement network segmentation to limit access to database servers. Additionally, monitoring for unusual mysql dump operations and implementing principle of least privilege access controls can help mitigate the risk. The vulnerability demonstrates the importance of comprehensive security testing of database client tools and highlights the need for regular security updates to protect against both known and emerging threats in database management systems.