CVE-2014-6483 in Oracle
Summary
by MITRE
Unspecified vulnerability in the Application Express component in Oracle Database Server before 4.2.6 allows remote authenticated users to affect confidentiality, integrity, and availability via unknown vectors.
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Analysis
by VulDB Data Team • 02/22/2022
The vulnerability identified as CVE-2014-6483 resides within Oracle Database Server's Application Express component, a web-based development environment that enables users to build database applications directly through a web browser interface. This component serves as a critical interface for database administrators and developers to create, modify, and manage database applications, making it a prime target for attackers seeking to compromise database systems. The vulnerability affects versions prior to 4.2.6, indicating that Oracle had not yet patched this specific weakness when the vulnerability was discovered, leaving numerous database installations exposed to potential exploitation. The unspecified nature of the vulnerability vectors suggests that the flaw could manifest through multiple attack paths, making it particularly dangerous as defenders struggle to identify all possible exploitation methods.
The technical flaw within Oracle Application Express appears to stem from inadequate input validation and access control mechanisms that allow authenticated users to perform unauthorized actions against the database system. This type of vulnerability typically falls under CWE-284, which addresses improper access control issues, and may also relate to CWE-119, concerning weak buffer validation that could lead to memory corruption. The authentication requirement indicates that this is not a simple privilege escalation vulnerability but rather one that leverages existing user credentials to gain expanded capabilities within the application environment. Attackers with legitimate access to the database system can potentially exploit this weakness to manipulate database contents, disrupt service availability, or extract sensitive information that should remain protected.
The operational impact of CVE-2014-6483 extends beyond simple data compromise, as it affects all three core principles of information security: confidentiality, integrity, and availability. An attacker with access to the Application Express component could potentially modify database records, delete critical information, or disrupt database operations through various attack vectors. This vulnerability particularly threatens database environments where Application Express is used for sensitive data management, as it provides a pathway for authenticated users to escalate their privileges or perform unauthorized operations. The availability impact is significant since database downtime or service disruption could affect business operations, while the confidentiality aspect poses risks to data privacy and intellectual property protection. Organizations relying on Oracle Database Server for critical business applications face substantial risk if they have not applied the relevant security patches.
Mitigation strategies for CVE-2014-6483 should prioritize immediate patch application to Oracle Database Server versions prior to 4.2.6, as this represents the most effective defense against exploitation. Organizations should also implement network segmentation to limit access to database systems and Application Express components, reducing the attack surface available to potential adversaries. Access control measures must be strengthened through proper user privilege management, ensuring that only authorized personnel have access to the Application Express functionality. Regular security audits and monitoring of database activities should be implemented to detect anomalous behavior that might indicate exploitation attempts. Additionally, following the principle of least privilege, organizations should restrict the permissions granted to Application Express users and regularly review access logs for suspicious activities. The vulnerability aligns with ATT&CK technique T1078, which covers valid accounts as a means of gaining access to systems, and T1499, covering unauthorized data access, making comprehensive monitoring and access control essential defensive measures.