CVE-2016-8301 in FLEXCUBE Universal Banking
Summary
by MITRE
Vulnerability in the Oracle FLEXCUBE Universal Banking component of Oracle Financial Services Applications (subcomponent: Core). Supported versions that are affected are 11.3.0, 11.4.0, 12.0.1, 12.0.2, 12.0.3, 12.1.0 and 12.2.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle FLEXCUBE Universal Banking. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle FLEXCUBE Universal Banking accessible data. CVSS v3.0 Base Score 4.3 (Integrity impacts).
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Analysis
by VulDB Data Team • 05/15/2026
The vulnerability identified as CVE-2016-8301 affects Oracle FLEXCUBE Universal Banking, a critical component within Oracle Financial Services Applications that serves as a core banking platform for financial institutions. This vulnerability resides within the Core subcomponent of the FLEXCUBE Universal Banking system and impacts multiple version releases including 11.3.0, 11.4.0, 12.0.1, 12.0.2, 12.0.3, 12.1.0, and 12.2.0, indicating a widespread exposure across the product lifecycle. The vulnerability classification as easily exploitable suggests that attackers can leverage network-based HTTP access without requiring authentication credentials, making it particularly dangerous for financial institutions that rely on this platform for their core banking operations.
The technical flaw manifests as a weakness in the application's access control mechanisms that permits unauthorized modification of data through HTTP protocols. This vulnerability specifically targets the integrity aspect of the CIA triad as indicated by the CVSS v3.0 Base Score of 4.3, which falls into the low severity category but carries significant implications for financial data. The attack requires human interaction from individuals other than the attacker, suggesting that social engineering or user manipulation may be necessary to complete the exploitation process, though the initial network access remains unauthenticated. This characteristic places the vulnerability in the context of CWE-284 (Improper Access Control) and potentially CWE-311 (Missing Encryption of Sensitive Data), as the system fails to properly validate access permissions for data modification operations.
The operational impact of this vulnerability extends beyond simple data integrity concerns to potentially compromise the entire financial transaction processing system. Successful exploitation could allow attackers to perform unauthorized update, insert, or delete operations on sensitive banking data, potentially affecting customer accounts, transaction records, and financial reporting systems. Financial institutions relying on FLEXCUBE Universal Banking could face significant regulatory compliance issues, as unauthorized data modifications would violate standards such as those outlined in the Payment Card Industry Data Security Standard (PCI DSS) and the Sarbanes-Oxley Act requirements for financial data integrity. The vulnerability's potential to affect multiple versions suggests that organizations maintaining legacy systems may be particularly vulnerable, as they might not have implemented the latest security patches or updates that would address this specific flaw.
Organizations should implement immediate mitigation strategies including network segmentation to limit HTTP access to the affected system, deployment of web application firewalls to monitor and filter HTTP requests, and comprehensive access control reviews to ensure that only authorized personnel can perform data modification operations. The vulnerability also highlights the importance of regular security assessments and patch management processes within financial institutions, as this issue demonstrates how a single access control flaw can potentially compromise entire banking systems. Additionally, organizations should consider implementing monitoring solutions that can detect anomalous data modification patterns and establish incident response procedures specifically tailored to address vulnerabilities of this nature, as the combination of network-based access and human interaction requirements creates unique challenges for both detection and prevention. The vulnerability serves as a reminder of the critical need for continuous security monitoring and proactive vulnerability management in financial services environments where data integrity is paramount to operational stability and regulatory compliance.