CVE-2018-2746 in FLEXCUBE Universal Banking
Summary
by MITRE
Vulnerability in the Oracle Banking Corporate Lending component of Oracle Financial Services Applications (subcomponent: Core module). Supported versions that are affected are 12.3.0, 12.4.0, 12.5.0 and 14.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Banking Corporate Lending. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Banking Corporate Lending accessible data as well as unauthorized update, insert or delete access to some of Oracle Banking Corporate Lending accessible data. CVSS 3.0 Base Score 7.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N).
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Analysis
by VulDB Data Team • 02/28/2023
The vulnerability identified as CVE-2018-2746 resides within Oracle Banking Corporate Lending component of Oracle Financial Services Applications, specifically within the Core module of this financial services platform. This vulnerability affects multiple supported versions including 12.3.0, 12.4.0, 12.5.0, and 14.0.0, indicating a widespread exposure across the product lifecycle. The flaw represents a significant security weakness that directly impacts the confidentiality and integrity of financial data within banking environments where such applications are deployed. The vulnerability's classification as easily exploitable suggests that attackers with minimal privileges and network access can leverage this weakness effectively.
The technical nature of this vulnerability allows a low privileged attacker to compromise the Oracle Banking Corporate Lending system through HTTP network access, making it particularly dangerous as it requires no special privileges or complex attack vectors. The attack surface is broad since HTTP access is commonly permitted and often not properly secured in financial environments. The CVSS 3.0 base score of 7.1 reflects the severity of impact, with high confidentiality impact and low integrity impact, indicating that successful exploitation could lead to unauthorized access to critical financial data or complete access to all data accessible through the system. The vulnerability's potential to enable unauthorized update, insert, or delete operations on accessible data further compounds the security risk, creating opportunities for data manipulation and integrity compromise.
From an operational perspective, this vulnerability poses severe risks to financial institutions using Oracle Financial Services Applications, particularly those managing corporate lending operations. The potential for unauthorized access to critical data could result in financial loss, regulatory compliance violations, and reputational damage. The ability to perform unauthorized data modifications creates additional operational threats that could disrupt lending processes, manipulate loan records, or alter financial reporting data. Organizations may face significant regulatory scrutiny if such vulnerabilities are exploited, as financial institutions are required to maintain strict data protection controls and audit trails. The vulnerability's impact extends beyond immediate data compromise to potentially affecting business continuity and operational integrity of corporate lending processes.
The security implications of CVE-2018-2746 align with CWE-284 (Improper Access Control) and can be mapped to ATT&CK technique T1078 (Valid Accounts) and T1046 (Network Service Scanning) as attackers would likely leverage legitimate network access to exploit the weakness. Mitigation strategies should include immediate patching of affected versions, implementation of network segmentation to limit HTTP access to the application, and enhanced monitoring of network traffic for suspicious activities. Organizations should also review and strengthen their access control policies, implement additional authentication mechanisms, and conduct regular vulnerability assessments to identify similar weaknesses in their financial applications. The vulnerability demonstrates the critical importance of maintaining up-to-date security patches in financial applications where data integrity and confidentiality are paramount requirements for regulatory compliance and operational security.