CVE-2018-3032 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. CVSS 3.0 Base Score 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N).
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Analysis
by VulDB Data Team • 04/10/2023
The vulnerability identified as CVE-2018-3032 resides within Oracle FLEXCUBE Investor Servicing, a critical component of Oracle Financial Services Applications that manages investment servicing operations for financial institutions. This flaw specifically affects the Infrastructure subcomponent and impacts multiple supported versions including 12.0.4, 12.1.0, 12.3.0, and 12.4.0, representing a significant attack surface for financial services organizations that rely on this platform for their core investment management processes. The vulnerability classification as easily exploitable indicates that attackers with minimal privileges and network access can leverage this weakness to compromise the system, making it particularly dangerous for organizations that may not have robust network segmentation in place.
The technical nature of this vulnerability stems from insufficient access controls within the HTTP interface of the FLEXCUBE Investor Servicing component, allowing authenticated attackers with low privilege levels to perform unauthorized data manipulation operations. This weakness enables attackers to execute unauthorized update, insert, or delete operations against specific data sets within the application's accessible data repository, while also permitting unauthorized read access to portions of sensitive financial information. The CVSS 3.0 score of 5.4 reflects the moderate severity of this vulnerability, with the base vector indicating network accessibility, low attack complexity, and the requirement for low privileges, while the lack of user interaction and lack of system scope limit the potential for more widespread impact. This vulnerability directly maps to CWE-284 (Improper Access Control) within the Common Weakness Enumeration catalog, which specifically addresses inadequate access control mechanisms that allow unauthorized users to access system resources.
The operational impact of CVE-2018-3032 extends beyond simple data integrity concerns, as it creates potential exposure for sensitive financial information that could be used for fraudulent activities or competitive advantage. Financial institutions utilizing FLEXCUBE Investor Servicing face significant risk of unauthorized access to investment data, portfolio information, and transaction records that could compromise client confidentiality and regulatory compliance. The vulnerability's ability to enable both read and write operations means that attackers could not only extract sensitive information but also modify investment records, potentially leading to financial losses and regulatory violations. Organizations implementing this software must consider the potential for insider threat exploitation as well as external attacks, particularly given the low privilege requirements for exploitation.
Mitigation strategies for CVE-2018-3032 should focus on immediate patch management with Oracle's security updates, while also implementing network segmentation to limit access to the vulnerable component. Organizations should conduct comprehensive access control reviews to ensure that least privilege principles are properly enforced, and implement monitoring solutions to detect unauthorized access attempts to the FLEXCUBE Investor Servicing interface. The vulnerability's characteristics align with ATT&CK technique T1078 (Valid Accounts) and T1046 (Network Service Scanning), indicating that attackers may leverage compromised accounts or conduct reconnaissance before exploiting this weakness. Additionally, organizations should consider implementing web application firewalls and regular security assessments to identify similar access control weaknesses in their financial services applications, as this vulnerability demonstrates the importance of proper authentication and authorization controls in mission-critical financial systems.