CVE-2023-21903 : Security Advisory and Response

This CVE-2023-21903 vulnerability was published by Oracle on April 18, 2023. It pertains to the Oracle Banking Virtual Account Management product within Oracle Financial Services Applications. The vulnerability allows a high privileged attacker with network access via HTTP to compromise the Oracle Banking Virtual Account Management system. Successful exploitation could lead to unauthorized access to critical data, complete access to all Oracle Banking Virtual Account Management data, unauthorized data manipulation, and the ability to cause partial denial of service.

Understanding CVE-2023-21903

This section explores the details and impact of the CVE-2023-21903 vulnerability.

What is CVE-2023-21903?

CVE-2023-21903 is a difficult-to-exploit vulnerability that enables a high privileged attacker to compromise Oracle Banking Virtual Account Management. The successful exploitation necessitates human interaction beyond the attacker, potentially resulting in unauthorized access to critical data or complete Oracle Banking Virtual Account Management data. The severity is rated with a CVSS 3.1 Base Score of 5.3, with confidentiality impacts being high.

The Impact of CVE-2023-21903

The impact of CVE-2023-21903 can be severe, allowing unauthorized access to critical data, complete Oracle Banking Virtual Account Management data, unauthorized data manipulation, and partial denial of service. This could lead to significant data breaches and operational disruptions.

Technical Details of CVE-2023-21903

In this section, you will find the specific technical details of CVE-2023-21903.

Vulnerability Description

The vulnerability in Oracle Banking Virtual Account Management affects versions 14.5, 14.6, and 14.7. It allows a high privileged attacker with network access via HTTP to compromise the system, potentially leading to unauthorized data access, manipulation, and partial denial of service.

Affected Systems and Versions

The Oracle Banking Virtual Account Management versions 14.5, 14.6, and 14.7 are affected by this vulnerability, putting these systems at risk of compromise by high privileged attackers.

Exploitation Mechanism

To exploit this vulnerability, an attacker needs network access via HTTP and high privileges. Successful attacks may require additional human interaction and can result in unauthorized data access and manipulation.

Mitigation and Prevention

To address CVE-2023-21903, you should take immediate steps and implement long-term security practices to protect your systems.

Immediate Steps to Take

Immediately update the affected Oracle Banking Virtual Account Management versions to patched versions provided by Oracle. Monitor network traffic and access logs for any suspicious activity.

Long-Term Security Practices

Implement least privilege access controls, regularly update and patch software, conduct security audits, and provide continuous security training to mitigate future vulnerabilities.

Patching and Updates

Oracle has released patches to address CVE-2023-21903. Ensure timely application of these patches to all affected systems to prevent exploitation of this vulnerability and maintain system security.