CVE-2018-3028 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 as well as unauthorized read access to a subset 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 6.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).
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Analysis
by VulDB Data Team • 04/10/2023
The vulnerability identified as CVE-2018-3028 resides within Oracle FLEXCUBE Investor Servicing, a critical component of Oracle Financial Services Applications that manages investor servicing operations for financial institutions. This vulnerability specifically affects the Infrastructure subcomponent and impacts multiple supported versions including 12.0.4, 12.1.0, 12.3.0, and 12.4.0, making it a widespread concern across various deployment environments. The flaw represents a significant security weakness that can be exploited by adversaries with minimal privileges and network connectivity, creating a substantial risk for financial organizations that rely on this system for critical investor data management.
The technical nature of this vulnerability stems from inadequate access controls within the HTTP interface of the FLEXCUBE Investor Servicing component, allowing an attacker with low privileges to execute unauthorized operations against the system. This weakness enables attackers to perform unauthorized update, insert, or delete operations on sensitive financial data while simultaneously gaining read access to confidential information. The vulnerability's classification as easily exploitable indicates that the attack vector requires minimal technical expertise or resources, making it particularly dangerous in environments where security controls may be insufficient. The CVSS 3.0 score of 6.3 reflects the moderate to high impact across confidentiality, integrity, and availability domains, with the attack vector being network-based and requiring low complexity but with the prerequisite of having low privilege access.
The operational impact of CVE-2018-3028 extends beyond simple data compromise to include potential service disruption and financial data manipulation. Attackers can exploit this vulnerability to modify investor records, potentially altering account balances, transaction histories, or other critical financial information that could result in significant financial loss and regulatory compliance issues. The partial denial of service component means that the system's availability may be compromised, affecting business operations and potentially impacting investor services during critical periods. This vulnerability directly impacts the integrity of financial data and can undermine the trust that investors place in the financial institution's systems, creating both immediate operational concerns and long-term reputational damage. Organizations using affected versions of FLEXCUBE Investor Servicing face potential regulatory scrutiny and compliance violations due to the exposure of sensitive financial data.
Organizations should implement immediate mitigations including applying Oracle's security patches and updates as released for this vulnerability, which aligns with industry best practices for vulnerability management. Network segmentation and access control measures should be strengthened to limit exposure of the affected component to untrusted networks. The vulnerability demonstrates characteristics consistent with CWE-284 (Improper Access Control) and may map to ATT&CK techniques involving privilege escalation and data manipulation. Regular security assessments and monitoring of the affected systems should be conducted to detect potential exploitation attempts. Additionally, implementing network intrusion detection systems and maintaining detailed audit logs can help identify unauthorized access attempts and provide evidence for forensic analysis should exploitation occur. Organizations should also consider implementing additional authentication controls and ensuring that only authorized personnel have access to the vulnerable components through proper role-based access controls and multi-factor authentication mechanisms.