CVE-2016-0499 in Database Server
Summary
by MITRE
Unspecified vulnerability in the Java VM component in Oracle Database Server 11.2.0.4, 12.1.0.1, and 12.1.0.2 allows remote authenticated users to affect confidentiality, integrity, and availability via unknown vectors.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 07/04/2022
The vulnerability identified as CVE-2016-0499 represents a critical security flaw within the Java Virtual Machine component of Oracle Database Server versions 11.2.0.4, 12.1.0.1, and 12.1.0.2. This issue falls under the broader category of database security vulnerabilities that can have severe implications for enterprise environments relying on Oracle database infrastructure. The vulnerability's classification as unspecified indicates that the exact technical details were not fully disclosed in the initial advisory, which is common with certain types of database security flaws that may involve complex interactions between multiple system components. The affected Java VM component is particularly concerning because it serves as the execution environment for Java-based applications and stored procedures within the database ecosystem, making it a prime target for attackers seeking to exploit database systems.
The technical nature of this vulnerability allows authenticated remote attackers to compromise the confidentiality, integrity, and availability of the affected systems through unspecified attack vectors. This triad of impacts suggests that the vulnerability could enable attackers to access sensitive data, modify database contents, and potentially disrupt database operations entirely. The fact that the attack requires authentication but can be executed remotely indicates that the vulnerability likely exists within the database's network communication protocols or authentication handling mechanisms. The Java VM component's role in executing database code means that exploitation could potentially lead to complete system compromise, especially when combined with other vulnerabilities or when attackers have access to legitimate database accounts. This type of vulnerability typically involves flaws in memory management, input validation, or privilege escalation mechanisms within the database's Java execution environment.
The operational impact of CVE-2016-0499 extends beyond simple data breaches, as it represents a fundamental weakness in database security that could allow attackers to gain persistent access to enterprise data environments. Organizations utilizing affected Oracle Database versions face significant risks including unauthorized data access, potential data corruption, and service disruption that could impact business continuity. The remote execution capability means that attackers do not need physical access to the database infrastructure, making the vulnerability particularly dangerous for organizations with internet-facing database systems. From an attack perspective, this vulnerability aligns with techniques described in the attack pattern taxonomy, specifically relating to privilege escalation and remote code execution scenarios. The impact is further amplified by the widespread adoption of Oracle Database products in enterprise environments, meaning that a successful exploitation could affect numerous organizations simultaneously.
Mitigation strategies for CVE-2016-0499 should focus on immediate patching of affected Oracle Database versions, with organizations prioritizing the application of Oracle's security patches released in their January 2016 Critical Patch Update. Network segmentation and access controls should be implemented to limit exposure of database systems to untrusted networks while maintaining necessary database connectivity for legitimate business operations. Database administrators should conduct thorough audits of database users and privileges to ensure that only necessary accounts have access to database functionality, particularly those with Java execution permissions. The vulnerability's classification as a database security issue aligns with common security frameworks and standards, including those addressing database security controls and access management. Organizations should also implement monitoring and logging mechanisms to detect potential exploitation attempts, as the unspecified nature of the vulnerability makes traditional signature-based detection challenging. Regular security assessments and vulnerability scanning should be conducted to identify and remediate similar issues within the database infrastructure. The remediation process should include comprehensive testing of patches in non-production environments before deployment to ensure that critical database functionality remains intact while addressing the security vulnerability.