CVE-2018-2859 in Financial Services Basel Regulatory Capital Internal Ratings Based Approach
Summary
by MITRE
Vulnerability in the Oracle Financial Services Basel Regulatory Capital Internal Ratings Based Approach component of Oracle Financial Services Applications (subcomponent: Portfolio, Attribution). The supported version that is affected is 8.0.x. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Financial Services Basel Regulatory Capital Internal Ratings Based Approach. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Financial Services Basel Regulatory Capital Internal Ratings Based Approach, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Financial Services Basel Regulatory Capital Internal Ratings Based Approach accessible data as well as unauthorized read access to a subset of Oracle Financial Services Basel Regulatory Capital Internal Ratings Based Approach 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).
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 03/02/2023
The vulnerability identified as CVE-2018-2859 resides within Oracle Financial Services Applications' Basel Regulatory Capital Internal Ratings Based Approach component, specifically affecting the Portfolio and Attribution subcomponents. This security flaw impacts version 8.0.x of the financial services application suite, which is widely deployed in banking and financial institutions for regulatory capital calculations. The vulnerability represents a significant concern for organizations managing sensitive financial data and regulatory compliance requirements, as it exposes critical financial modeling components to unauthorized access. The affected system operates within the financial services sector where regulatory adherence and data integrity are paramount, making this vulnerability particularly dangerous for institutions that rely on accurate and secure financial calculations.
This vulnerability manifests as an insufficient authentication mechanism that allows unauthenticated attackers to exploit network-based HTTP access points to compromise the targeted system. The flaw requires minimal technical expertise to exploit, making it particularly dangerous as it can be leveraged by attackers without requiring privileged credentials or specialized tools. The vulnerability's classification as easily exploitable indicates that the attack surface is well-defined and accessible through standard network protocols, eliminating the need for complex attack chains or privileged access. The attack vector operates through HTTP protocols, suggesting that the vulnerability may exist in web-facing components or APIs that handle financial data processing requests. The CVSS 3.0 score of 6.1 reflects the moderate severity of the impact, considering both confidentiality and integrity risks, though the potential for additional product impacts makes this assessment conservative.
The operational impact of this vulnerability extends beyond simple data access, as successful exploitation enables unauthorized modification capabilities including update, insert, and delete operations on sensitive financial data. Attackers can potentially manipulate regulatory capital calculations, financial models, and risk assessments that directly influence an institution's regulatory compliance status and financial stability. The vulnerability's ability to provide unauthorized read access to subsets of accessible data creates additional risks for data confidentiality, potentially exposing proprietary financial models, client information, or regulatory reporting data. The requirement for human interaction from someone other than the attacker suggests that the vulnerability may be triggered through social engineering or user interaction scenarios, though the underlying technical flaw remains exploitable without privileged access. This aspect of the vulnerability increases the attack surface and makes it more challenging to detect and prevent.
Organizations should implement immediate mitigations including network segmentation to limit access to the affected components, deployment of web application firewalls to monitor and filter HTTP traffic, and implementation of strong authentication mechanisms for any remaining access points. Regular security assessments should be conducted to identify additional vulnerable components within the Oracle Financial Services Applications suite, as this vulnerability may indicate broader security gaps in the system architecture. The attack vector aligns with common tactics used in financial services targeting, specifically focusing on data integrity and confidentiality breaches that can have cascading effects across multiple financial applications. According to CWE classification, this vulnerability relates to CWE-287 which addresses improper authentication issues, while the ATT&CK framework would categorize this under initial access and persistence tactics. The impact on additional products indicates potential lateral movement capabilities that could affect other systems within the financial institution's network infrastructure. Security teams should also consider implementing monitoring solutions that can detect anomalous access patterns or unauthorized data modifications that may indicate exploitation attempts.