CVE-2018-2897 in FLEXCUBE Enterprise Limits
Summary
by MITRE
Vulnerability in the Oracle FLEXCUBE Enterprise Limits and Collateral Management component of Oracle Financial Services Applications (subcomponent: Infrastructure). Supported versions that are affected are 12.3.0, 14.0.0 and 14.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle FLEXCUBE Enterprise Limits and Collateral Management. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle FLEXCUBE Enterprise Limits and Collateral Management, attacks may significantly impact additional products. 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 6.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).
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Analysis
by VulDB Data Team • 04/10/2023
The vulnerability identified as CVE-2018-2897 resides within Oracle FLEXCUBE Enterprise Limits and Collateral Management, a critical component of Oracle Financial Services Applications that manages financial risk limits and collateral arrangements for enterprise clients. This flaw affects specifically versions 12.3.0, 14.0.0, and 14.1.0 of the software, representing a significant security gap in financial services infrastructure that could expose organizations to substantial financial and operational risks. The vulnerability operates within the Infrastructure subcomponent of the broader FLEXCUBE suite, making it particularly concerning as it undermines the foundational security controls that protect sensitive financial data and transaction processing capabilities.
The technical nature of this vulnerability manifests as an easily exploitable weakness that permits unauthenticated attackers to gain access to the targeted system through standard HTTP network connections without requiring any prior authentication credentials or privileged access. This characteristic places the vulnerability in the category of network-based attacks that can be initiated remotely, making it particularly dangerous for organizations that maintain exposed web services or have inadequate network segmentation controls. The attack vector specifically leverages HTTP protocols, which means that even organizations with basic firewall protections may be vulnerable if they do not implement additional application-level security measures or web application firewalls to filter malicious HTTP requests.
The operational impact of this vulnerability extends beyond the immediate compromise of the targeted FLEXCUBE component and can significantly affect related financial applications and systems within the organization's ecosystem. Attackers who successfully exploit this vulnerability can achieve unauthorized modification of data through update, insert, or delete operations against specific data sets within the limits and collateral management system. Additionally, the vulnerability enables unauthorized read access to sensitive subsets of data that should normally be protected from unauthorized disclosure, potentially exposing confidential financial information including customer limits, collateral arrangements, and risk management parameters. The CVSS 3.0 score of 6.1 reflects the moderate severity of the impact, with particular emphasis on the confidentiality and integrity implications that could undermine the trust and reliability of financial risk management processes.
Organizations facing this vulnerability should implement immediate mitigations including applying the relevant Oracle security patches and updates that address this specific flaw, implementing network segmentation to limit access to the affected system, and deploying web application firewalls to filter and monitor HTTP traffic to the vulnerable component. The requirement for human interaction from individuals other than the attacker suggests that social engineering or targeted phishing campaigns may be employed to initiate the attack, making user awareness training and email filtering solutions important defensive measures. Security monitoring should focus on detecting unusual HTTP request patterns and unauthorized data access attempts to the FLEXCUBE system, with particular attention to any modifications to financial limits or collateral arrangements that could indicate successful exploitation of this vulnerability. This vulnerability aligns with CWE-284 (Improper Access Control) and may map to ATT&CK techniques involving credential access and privilege escalation through web application exploitation, emphasizing the need for comprehensive security controls that address both network-level and application-level access controls.