CVE-2019-2754 in FLEXCUBE Universal Banking
Summary
by MITRE
Vulnerability in the Oracle FLEXCUBE Universal Banking component of Oracle Financial Services Applications (subcomponent: Infrastructure). Supported versions that are affected are 12.0.1-12.0.3, 12.1.0-12.4.0 and 14.0.0-14.2.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle FLEXCUBE Universal Banking. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle FLEXCUBE Universal Banking accessible data as well as unauthorized access to critical data or complete access to all Oracle FLEXCUBE Universal Banking accessible data. CVSS 3.0 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).
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Analysis
by VulDB Data Team • 07/05/2020
The vulnerability identified as CVE-2019-2754 resides within Oracle FLEXCUBE Universal Banking, a critical component of Oracle Financial Services Applications that serves as the backbone for banking operations. This particular flaw exists within the Infrastructure subcomponent of the application, affecting multiple version ranges including 12.0.1 through 12.0.3, 12.1.0 through 12.4.0, and 14.0.0 through 14.2.0. The vulnerability represents a significant security weakness that directly impacts the integrity and confidentiality of financial data processing systems. The flaw enables attackers to exploit the system through standard HTTP network connections, making it particularly dangerous as it requires minimal prerequisites for exploitation.
The technical nature of this vulnerability stems from inadequate access controls and authentication mechanisms within the FLEXCUBE Universal Banking infrastructure. Attackers with low privilege levels can leverage this weakness to execute unauthorized operations against the banking system's data repository. The vulnerability's classification as easily exploitable indicates that the attack vector requires minimal technical expertise or resources, potentially allowing even novice attackers to successfully compromise the system. The CVSS 3.0 scoring of 8.1 reflects the severity of impact, with high scores for both confidentiality and integrity, suggesting that successful exploitation could result in complete data compromise and modification capabilities.
From an operational standpoint, the implications of this vulnerability extend far beyond simple data theft. The successful exploitation could enable attackers to create, delete, or modify critical banking data, potentially leading to financial losses, regulatory violations, and reputational damage. The attack could result in unauthorized access to all data accessible through the Oracle FLEXCUBE Universal Banking system, representing a complete breakdown of data protection mechanisms. This vulnerability particularly threatens the integrity of financial transactions and customer data, as attackers could manipulate account information, transaction records, or system configurations without detection. The unauthorized modification capabilities pose a significant risk to the banking institution's operational continuity and regulatory compliance.
Security professionals should consider implementing multiple layers of defense to mitigate this vulnerability, including network segmentation, enhanced access controls, and regular security monitoring. The vulnerability's presence in multiple version ranges suggests that organizations should prioritize immediate patching of affected systems, as recommended by Oracle's security advisories. Additional defensive measures should include implementing web application firewalls, monitoring HTTP traffic for suspicious patterns, and establishing robust incident response procedures. Organizations should also conduct thorough vulnerability assessments to identify any additional weaknesses that could be exploited in conjunction with this vulnerability, particularly focusing on the broader Oracle Financial Services Applications ecosystem. The threat landscape for financial institutions continues to evolve, making timely patch management and comprehensive security controls essential for protecting critical banking infrastructure against sophisticated attacks.
This vulnerability aligns with CWE-284, which addresses improper access control issues, and represents a classic example of insufficient authorization checks within enterprise financial applications. The attack pattern corresponds to techniques described in the ATT&CK framework under privilege escalation and credential access phases, highlighting the need for comprehensive security controls that address both network-level and application-level threats. Organizations should treat this vulnerability as a high-priority concern given its potential to enable complete system compromise and the relatively low barrier to exploitation.