CVE-2017-3484 in FLEXCUBE Enterprise Limits
Summary
by MITRE
Vulnerability in the Oracle FLEXCUBE Enterprise Limits and Collateral Management component of Oracle Financial Services Applications (subcomponent: Limits and Collateral). Supported versions that are affected are 12.0.0 and 12.1.0. Easily "exploitable" vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle FLEXCUBE Enterprise Limits and Collateral Management. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle FLEXCUBE Enterprise Limits and Collateral Management accessible data as well as unauthorized read access to a subset of Oracle FLEXCUBE Enterprise Limits and Collateral Management accessible data. CVSS 3.0 Base Score 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N).
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Analysis
by VulDB Data Team • 12/19/2020
The vulnerability identified as CVE-2017-3484 resides within Oracle FLEXCUBE Enterprise Limits and Collateral Management component, specifically within the Limits and Collateral subcomponent of Oracle Financial Services Applications. This security flaw affects version 12.0.0 and 12.1.0 of the software, representing a significant risk to financial institutions that rely on this enterprise-level banking solution for managing credit limits and collateral arrangements. The vulnerability's classification as easily exploitable indicates that attackers with minimal technical expertise can leverage this weakness to gain unauthorized access to critical financial data and operations within the system.
The technical nature of this vulnerability stems from insufficient input validation and access control mechanisms within the HTTP interface of the FLEXCUBE application. Attackers with low privileged network access can exploit this weakness to perform unauthorized operations including data modification, insertion, and deletion within specific portions of the limits and collateral management system. The vulnerability operates at the application layer where HTTP requests are processed, allowing malicious actors to manipulate the underlying data structures without requiring elevated privileges or direct system access. This type of flaw typically falls under CWE-20, which represents "Improper Input Validation" and aligns with ATT&CK technique T1071.004 for application layer protocol manipulation.
The operational impact of CVE-2017-3484 extends beyond simple data compromise, as it enables attackers to potentially manipulate critical financial parameters that govern credit limits and collateral requirements. Successful exploitation could result in unauthorized modifications to customer credit limits, alteration of collateral valuations, or manipulation of risk management parameters that directly affect the institution's financial exposure. The confidentiality and integrity impacts are particularly concerning given that this vulnerability allows access to sensitive financial data and the ability to modify critical operational parameters, potentially leading to significant financial losses or regulatory violations. The CVSS 3.0 score of 5.4 reflects the moderate severity of the threat, with the low attack complexity and local privileges required making it accessible to a broad range of potential attackers.
Organizations utilizing affected versions of Oracle FLEXCUBE Enterprise Limits and Collateral Management should prioritize immediate remediation through official Oracle patches and updates. Network segmentation and access controls should be implemented to limit exposure of the vulnerable HTTP endpoints, while comprehensive monitoring should be deployed to detect anomalous access patterns or data manipulation attempts. Security teams should also conduct thorough vulnerability assessments of related financial applications and ensure proper input validation controls are implemented across all interfaces. The vulnerability's classification under CVSS vector AV:N/AC:L/PR:L/UI:N/S:U indicates that the attack surface is broad and accessible via network connections, making network-level protections and access controls essential defensive measures. Organizations should also consider implementing database activity monitoring solutions to track and alert on unauthorized data access or modifications within the limits and collateral management modules.