CVE-2018-2807 in FLEXCUBE Core Banking
Summary
by MITRE
Vulnerability in the Oracle FLEXCUBE Core Banking component of Oracle Financial Services Applications (subcomponent: Securities). Supported versions that are affected are 11.5.0, 11.6.0 and 11.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle FLEXCUBE Core Banking. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle FLEXCUBE Core Banking, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle FLEXCUBE Core Banking accessible data as well as unauthorized read access to a subset of Oracle FLEXCUBE Core Banking accessible data. CVSS 3.0 Base Score 6.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 03/02/2023
The vulnerability identified as CVE-2018-2807 resides within Oracle FLEXCUBE Core Banking component, specifically within the Securities subcomponent of Oracle Financial Services Applications. This security flaw affects multiple versions including 11.5.0, 11.6.0, and 11.7.0, representing a significant risk to financial institutions utilizing these systems. The vulnerability classification as easily exploitable indicates that attackers can leverage this weakness without requiring specialized skills or extensive preparation, making it particularly dangerous in production environments where financial data integrity is paramount.
The technical nature of this vulnerability manifests through an HTTP-based attack vector that does not require authentication, allowing remote attackers to compromise the Oracle FLEXCUBE Core Banking system. This unauthenticated access capability represents a fundamental breach in the system's security architecture, as it eliminates the need for credential compromise or other authentication bypass techniques. The vulnerability's CVSS 3.0 base score of 6.1 reflects the moderate severity level, with confidentiality and integrity impacts rated as low, though the potential for unauthorized data manipulation remains significant.
The operational impact of this vulnerability extends beyond the immediate compromise of Oracle FLEXCUBE Core Banking itself, as successful exploitation can affect additional products within the Oracle Financial Services Applications ecosystem. This cascading effect demonstrates the interconnected nature of financial software systems and highlights how a single vulnerability can create widespread security implications. The requirement for human interaction from individuals other than the attacker suggests that social engineering or user manipulation may be necessary to complete the attack, potentially involving phishing campaigns or other deceptive tactics to gain access to the vulnerable system.
Attackers exploiting this vulnerability can achieve unauthorized update, insert, or delete operations against sensitive financial data within Oracle FLEXCUBE Core Banking, while also gaining unauthorized read access to subsets of accessible data. This dual capability for data modification and disclosure creates substantial risk for financial institutions, potentially enabling fraud, data corruption, or information theft. The vulnerability's classification under CWE 79 (Cross-site Scripting) and its alignment with ATT&CK technique T1190 (Exploit Public-Facing Application) demonstrates how this weakness fits within established cybersecurity frameworks for understanding attack patterns and threat behaviors.
Organizations should implement immediate mitigations including network segmentation to limit access to the vulnerable Oracle FLEXCUBE Core Banking systems, deployment of web application firewalls to monitor and filter HTTP traffic, and implementation of strict access controls for administrative functions. Regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses within the broader Oracle Financial Services Applications suite. Additionally, organizations must ensure proper patch management procedures are in place to address this vulnerability through Oracle's official security updates, while maintaining comprehensive monitoring of network traffic for suspicious activities related to the affected system components. The vulnerability serves as a reminder of the critical importance of maintaining up-to-date security patches in financial systems where unauthorized access can result in significant financial and operational consequences.