CVE-2014-6500 in MySQL Server
Summary
by MITRE
Unspecified vulnerability in Oracle MySQL Server 5.5.39 and earlier, and 5.6.20 and earlier, allows remote attackers to affect confidentiality, integrity, and availability via vectors related to SERVER:SSL:yaSSL, a different vulnerability than CVE-2014-6491.
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Analysis
by VulDB Data Team • 02/23/2022
The vulnerability identified as CVE-2014-6500 represents a critical security flaw within Oracle MySQL Server versions 5.5.39 and earlier, as well as 5.6.20 and earlier. This issue specifically targets the server component's interaction with SSL/TLS encryption protocols through the yaSSL implementation, creating a significant attack surface that remote adversaries can exploit to compromise system integrity. The vulnerability falls under the broader category of cryptographic weaknesses that can undermine the fundamental security assurances typically provided by secure communication channels.
The technical nature of this vulnerability lies within the SSL/TLS implementation of the MySQL server, specifically through the yaSSL library integration. This flaw enables attackers to manipulate or disrupt secure communication channels that MySQL relies upon for data protection. The vulnerability's impact extends across all three pillars of cybersecurity confidentiality, integrity, and availability, making it particularly dangerous as it can allow unauthorized access to sensitive data, modification of database contents, and potential service disruption. The distinction from CVE-2014-6491 indicates that while both vulnerabilities relate to SSL/TLS functionality, they affect different components or aspects of the cryptographic implementation within the MySQL server.
From an operational perspective, this vulnerability poses severe risks to database environments that rely on MySQL for critical applications. Attackers exploiting this weakness could potentially intercept sensitive information transmitted between database clients and servers, modify data in transit, or cause denial of service conditions that would disrupt business operations. The remote attack vector means that adversaries do not require physical access to the network or system, making this vulnerability particularly concerning for organizations with distributed database deployments or those exposed to the internet. The impact is amplified when considering that MySQL servers often handle sensitive customer data, financial records, and other confidential information that requires robust protection mechanisms.
Organizations should prioritize immediate patching of affected MySQL server versions to address this vulnerability, as the risk of exploitation increases with the exposure time. The remediation process should include updating to MySQL versions 5.5.40 or later, and 5.6.21 or later, which contain the necessary fixes for the SSL/TLS implementation. Security administrators should also conduct comprehensive network monitoring to detect any suspicious activities that might indicate exploitation attempts. Additional mitigation strategies include implementing network segmentation to limit access to database servers, enforcing strong authentication mechanisms, and regularly auditing SSL/TLS configurations to ensure proper implementation. This vulnerability aligns with CWE-310, which covers cryptographic issues, and represents a significant concern within the ATT&CK framework under the credential access and defense evasion tactics, as it can enable adversaries to bypass security controls and maintain persistent access to database environments.