CVE-2018-2855 in Financial Services Basel Regulatory Capital Basic
Summary
by MITRE
Vulnerability in the Oracle Financial Services Basel Regulatory Capital Basic component of Oracle Financial Services Applications (subcomponent: Portfolio, Attribution). The supported version that is affected is 8.0.x. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Financial Services Basel Regulatory Capital Basic. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Financial Services Basel Regulatory Capital Basic accessible data as well as unauthorized access to critical data or complete access to all Oracle Financial Services Basel Regulatory Capital Basic 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 • 02/28/2023
The vulnerability identified as CVE-2018-2855 resides within the Oracle Financial Services Basel Regulatory Capital Basic component of Oracle Financial Services Applications, specifically affecting the Portfolio and Attribution subcomponents. This critical security flaw impacts version 8.0.x of the software and represents a significant risk to financial institutions relying on this regulatory capital management system. The vulnerability's classification as easily exploitable indicates that attackers with minimal privileges and network access can potentially compromise the entire system without requiring advanced technical skills or extensive reconnaissance. The affected component plays a crucial role in financial services regulatory compliance, making this vulnerability particularly dangerous for organizations that depend on accurate and secure handling of sensitive financial data.
The technical nature of this vulnerability stems from insufficient access controls and authentication mechanisms within the Oracle Financial Services Basel Regulatory Capital Basic application. Attackers with low privileges and network access via HTTP can exploit this weakness to gain unauthorized access to critical system functions. The vulnerability allows for unauthorized modification, deletion, and creation of data within the system, representing a severe compromise of both data integrity and confidentiality. The CVSS 3.0 score of 8.1 reflects the high severity of this flaw, with the vector AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N indicating that the attack requires no user interaction, low complexity, and only low privileges to succeed. The impact on confidentiality and integrity is rated as high, suggesting that attackers can access or modify all accessible data within the system.
The operational implications of this vulnerability extend far beyond simple data compromise, as it directly affects the regulatory compliance and financial integrity of organizations using Oracle Financial Services Basel Regulatory Capital Basic. Financial institutions relying on this system for regulatory capital calculations and reporting face potential risks including unauthorized data manipulation that could lead to incorrect regulatory reporting, financial losses, and potential regulatory penalties. The ability to perform unauthorized data modifications without detection represents a significant threat to the trustworthiness of financial data and could undermine the entire regulatory capital management process. Organizations may face reputational damage, regulatory scrutiny, and potential legal consequences if this vulnerability is exploited successfully, particularly given the sensitive nature of financial regulatory data and the critical role these systems play in financial stability.
Organizations should implement immediate mitigations including applying the relevant Oracle security patches and updates released to address this vulnerability. Network segmentation and access controls should be strengthened to limit access to the affected system, while implementing robust monitoring and logging mechanisms to detect potential exploitation attempts. The vulnerability aligns with CWE-284 (Improper Access Control) and represents a clear violation of the principle of least privilege, as attackers can perform actions beyond their authorized access levels. From an ATT&CK framework perspective, this vulnerability maps to T1078 (Valid Accounts) and T1566 (Phishing) as attackers may leverage existing accounts or gain initial access through social engineering to exploit the weak access controls. Regular security assessments and penetration testing should be conducted to identify similar access control vulnerabilities within the broader financial services infrastructure, as this type of flaw often indicates broader security weaknesses that may affect other components of the financial services applications stack.