CVE-2018-3031 in FLEXCUBE Investor Servicing
Summary
by MITRE
Vulnerability in the Oracle FLEXCUBE Investor Servicing component of Oracle Financial Services Applications (subcomponent: Infrastructure). Supported versions that are affected are 12.0.4, 12.1.0, 12.3.0 and 12.4.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle FLEXCUBE Investor Servicing. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle FLEXCUBE Investor Servicing accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle FLEXCUBE Investor Servicing. CVSS 3.0 Base Score 5.4 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L).
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Analysis
by VulDB Data Team • 04/10/2023
The vulnerability identified as CVE-2018-3031 resides within Oracle FLEXCUBE Investor Servicing, a critical component of Oracle Financial Services Applications that manages complex financial operations for institutional investors. This security flaw specifically affects versions 12.0.4, 12.1.0, 12.3.0, and 12.4.0 of the software, representing a significant risk to financial institutions that rely on this platform for their core operations. The vulnerability's classification as easily exploitable indicates that attackers can leverage relatively simple techniques to compromise the system, making it particularly dangerous in production environments where such systems handle sensitive financial data and transactions.
The technical nature of this vulnerability stems from insufficient access controls within the infrastructure component of the FLEXCUBE Investor Servicing platform. Attackers with low privileges and network access via HTTP can exploit this weakness to gain unauthorized access to the system's data management functions. This flaw allows adversaries to perform unauthorized update, insert, or delete operations against specific data elements within the application, effectively undermining the integrity of financial records and transaction histories. The vulnerability's CVSS 3.0 score of 5.4 reflects a moderate severity level with particular emphasis on integrity and availability impacts, indicating that while the attack vector is relatively accessible, the potential damage can significantly affect system reliability and data accuracy.
The operational impact of CVE-2018-3031 extends beyond simple data manipulation to include partial denial of service conditions that can disrupt normal business operations. Financial institutions utilizing affected versions of FLEXCUBE Investor Servicing face the risk of service degradation that could affect trading operations, account reconciliations, and other critical financial processes. This vulnerability represents a direct threat to the confidentiality, integrity, and availability of financial data, creating potential regulatory compliance issues and exposing organizations to financial losses. The partial denial of service aspect means that while complete system shutdown may not occur, the affected services could become partially non-functional, causing operational disruptions that impact client relationships and business continuity.
Organizations should immediately implement the patch provided by Oracle to address this vulnerability, as the affected versions have reached end-of-life support status and may not receive further security updates. The mitigation strategy should include network segmentation to limit access to the vulnerable application, implementation of additional authentication layers, and enhanced monitoring of database access patterns to detect potential exploitation attempts. Security teams should also consider conducting comprehensive vulnerability assessments of their financial services infrastructure to identify similar weaknesses in other Oracle Financial Services Applications components. This vulnerability aligns with CWE-284 (Improper Access Control) and represents a typical attack pattern categorized under the MITRE ATT&CK framework's privilege escalation techniques, where attackers leverage weak access controls to expand their system access and manipulate financial data.