CVE-2018-3020 in Banking Payments
Summary
by MITRE
Vulnerability in the Oracle Banking Payments component of Oracle Financial Services Applications (subcomponent: Payments Core). Supported versions that are affected are 12.2.0, 12.3.0, 12.4.0, 12.5.0 and 14.1.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Banking Payments. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Banking Payments accessible data as well as unauthorized read access to a subset of Oracle Banking Payments accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Banking Payments. 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-2018-3020 resides within the Oracle Banking Payments component of Oracle Financial Services Applications, specifically within the Payments Core subcomponent. This flaw affects multiple versions including 12.2.0, 12.3.0, 12.4.0, 12.5.0, and 14.1.0, representing a significant attack surface across the Oracle Financial Services ecosystem. The vulnerability is classified as easily exploitable, indicating that attackers with minimal technical expertise can leverage this weakness to compromise the targeted system. The attack vector requires only network access via HTTP, making it particularly dangerous as it can be exploited from remote locations without requiring physical access or complex attack chains.
The technical nature of this vulnerability stems from inadequate authorization controls within the Payments Core component, allowing attackers with low privilege levels to perform unauthorized operations against the banking payments system. This weakness enables attackers to execute unauthorized update, insert, or delete operations on sensitive data within the Oracle Banking Payments environment. Additionally, the vulnerability permits unauthorized read access to specific subsets of data that should normally be protected, creating potential for data exfiltration and information disclosure. The impact extends to partial denial of service conditions, where attackers can disrupt system availability for specific functionalities while maintaining operational access to the broader system.
From a security impact perspective, the CVSS 3.0 score of 6.3 reflects a moderate to high severity threat with balanced impacts across confidentiality, integrity, and availability domains. The attack requires low privileges (PR:L) and no user interaction (UI:N), while the network accessibility (AV:N) means that attacks can originate from external sources. The vulnerability's potential to affect multiple versions indicates a systemic weakness that could impact numerous financial institutions relying on Oracle Financial Services Applications. The confidentiality impact (C:L) suggests limited data exposure, while the integrity impact (I:L) and availability impact (A:L) indicate moderate damage potential to system operations and data integrity.
Organizations should prioritize immediate remediation through Oracle's security patches and updates to address this vulnerability. Network segmentation and access controls should be implemented to limit exposure of the affected components to untrusted networks. Monitoring for unauthorized access attempts and anomalous system behavior should be enhanced to detect potential exploitation attempts. The vulnerability aligns with CWE-284 (Improper Access Control) and represents a classic privilege escalation scenario that could enable attackers to gain unauthorized access to financial data and transaction processing capabilities. Security teams should also consider implementing web application firewalls and intrusion detection systems to monitor for exploitation attempts targeting this specific vulnerability. The ATT&CK framework would categorize this vulnerability under privilege escalation and credential access tactics, as attackers could leverage this weakness to expand their access within the financial services environment and potentially move laterally through connected systems.