CVE-2016-5594 in FLEXCUBE Universal Banking
Summary
by MITRE
Unspecified vulnerability in the Oracle FLEXCUBE Universal Banking component in Oracle Financial Services Applications 11.3.0, 11.4.0, and 12.0.1 through 12.0.3 allows remote authenticated users to affect confidentiality via vectors related to INFRA.
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Analysis
by VulDB Data Team • 09/27/2022
The vulnerability identified as CVE-2016-5594 affects Oracle FLEXCUBE Universal Banking, a critical component within Oracle Financial Services Applications that serves as a foundational platform for banking operations. This unspecified weakness resides within the INFRA module of the financial services suite, which is responsible for core infrastructure functions that support various banking services including account management, transaction processing, and customer information handling. The vulnerability impacts multiple versions including 11.3.0, 11.4.0, and 12.0.1 through 12.0.3, indicating a widespread exposure across the FLEXCUBE Universal Banking product line that was actively deployed by financial institutions globally.
The technical flaw manifests as a security weakness that permits remote authenticated users to compromise confidentiality, suggesting an information disclosure vulnerability rather than a direct system compromise or denial of service. This classification places the vulnerability within the scope of CWE-200, which specifically addresses information exposure, and potentially CWE-310, which covers cryptographic weaknesses. The fact that the attack requires authentication indicates that the vulnerability exists in the authorization or access control mechanisms, allowing users who have legitimate credentials to access data they should not be able to retrieve. The INFRA component typically handles sensitive banking data flows and system interactions that require robust confidentiality controls to prevent unauthorized information access.
The operational impact of this vulnerability is significant for financial institutions relying on Oracle FLEXCUBE Universal Banking, as it could enable malicious actors with valid user credentials to access confidential customer information, transaction records, or system data that should remain protected. This exposure could lead to financial fraud, regulatory violations, and reputational damage, particularly when considering that the vulnerability affects versions that were commonly deployed in production environments. The remote nature of the attack means that threat actors could exploit this weakness from outside the organization's network, potentially through compromised user accounts or credential theft scenarios. Organizations using these affected versions face potential regulatory compliance issues under standards such as pci dss, soc 2, and banking regulations that mandate strict data protection measures.
Mitigation strategies for this vulnerability should focus on immediate patch management to upgrade to affected versions that contain the necessary security fixes, while also implementing additional security controls such as enhanced monitoring of access patterns, privileged account monitoring, and regular security assessments of the INFRA component. Organizations should conduct thorough risk assessments to identify all systems running affected versions and prioritize remediation efforts based on the criticality of the exposed data. The vulnerability demonstrates the importance of maintaining up-to-date security patches in financial applications and highlights potential ATT&CK techniques such as credential access and defense evasion when attackers leverage compromised accounts to exploit such information disclosure weaknesses. Additionally, implementing network segmentation, access control reviews, and regular penetration testing can help reduce the overall risk exposure while awaiting full patch deployment.