CVE-2017-3475 in FLEXCUBE Private Banking
Summary
by MITRE
Vulnerability in the Oracle FLEXCUBE Private Banking component of Oracle Financial Services Applications (subcomponent: Miscellaneous). Supported versions that are affected are 2.0.0, 2.0.1, 2.2.0.1 and 12.0.1. Easily "exploitable" vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle FLEXCUBE Private Banking. While the vulnerability is in Oracle FLEXCUBE Private Banking, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle FLEXCUBE Private Banking. CVSS 3.0 Base Score 5.0 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L).
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Analysis
by VulDB Data Team • 12/19/2020
The vulnerability identified as CVE-2017-3475 resides within Oracle FLEXCUBE Private Banking, a critical component of Oracle Financial Services Applications that serves as a foundational platform for private banking operations. This specific flaw manifests in the Miscellaneous subcomponent, which handles various auxiliary functions crucial to the overall system integrity. The affected versions 2.0.0, 2.0.1, 2.2.0.1, and 12.0.1 represent a significant attack surface given their widespread deployment across financial institutions. The vulnerability's classification as easily exploitable indicates that adversaries require minimal technical expertise to leverage this weakness, making it particularly dangerous in production environments where security controls may be insufficient.
The technical nature of this vulnerability stems from insufficient input validation mechanisms within the Oracle FLEXCUBE Private Banking system, creating a pathway for malicious actors to manipulate system resources through HTTP network connections. The low privilege requirement means that attackers do not need elevated system access or specialized credentials to initiate exploitation attempts. This weakness operates at the application layer, specifically targeting the processing of HTTP requests that flow through the system's network interface. The vulnerability's impact extends beyond the immediate component through the CVSS vector's scope change indicator, suggesting that successful exploitation could affect additional Oracle Financial Services products within the same ecosystem, creating cascading security implications.
From an operational standpoint, this vulnerability presents a significant availability risk with a CVSS base score of 5.0, indicating a medium severity impact on system availability. The partial denial of service condition means that attackers can disrupt specific functionalities of the Oracle FLEXCUBE Private Banking system without completely taking it offline. This type of attack can severely impact financial institutions' ability to process transactions, manage customer accounts, and maintain operational continuity during critical business periods. The vulnerability's network accessibility through HTTP connections means that adversaries can potentially exploit it from remote locations, increasing the attack surface and reducing the time required for successful compromise.
Security professionals should recognize this vulnerability as aligning with CWE-20, which addresses "Improper Input Validation," a fundamental weakness that continues to plague enterprise applications. The attack pattern corresponds to techniques documented in the MITRE ATT&CK framework under the "Command and Control" and "Execution" phases, where adversaries establish network connections to manipulate system resources. Organizations should implement immediate mitigations including network segmentation to limit HTTP access to critical components, deployment of web application firewalls, and comprehensive network monitoring to detect anomalous traffic patterns. The CVSS vector's low attack complexity and lack of user interaction requirements indicate that this vulnerability should be prioritized for remediation, particularly in environments handling sensitive financial data where operational continuity is paramount. Regular security assessments and patch management programs should be enhanced to prevent similar vulnerabilities from remaining unaddressed in the broader Oracle Financial Services Applications ecosystem.