CVE-2023-21846 Explained : Impact and Mitigation

This CVE-2023-21846 relates to a vulnerability in the Oracle BI Publisher product of Oracle Fusion Middleware. It can allow a low-privileged attacker with network access through multiple protocols to compromise Oracle BI Publisher, potentially leading to a takeover.

Understanding CVE-2023-21846

This section will provide an overview of what CVE-2023-21846 entails and its impact on systems running Oracle BI Publisher.

What is CVE-2023-21846?

CVE-2023-21846 is an easily exploitable vulnerability that enables a low-privileged attacker with network access to compromise Oracle BI Publisher. Successful exploitation of this vulnerability can result in a complete takeover of Oracle BI Publisher.

The Impact of CVE-2023-21846

The impact of CVE-2023-21846 is significant, with the potential for confidentiality, integrity, and availability impacts. This vulnerability has a CVSS 3.1 Base Score of 8.8, indicating a high severity level.

Technical Details of CVE-2023-21846

Delve into the technical specifics of CVE-2023-21846, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in Oracle BI Publisher affects supported versions 5.9.0.0.0, 6.4.0.0.0, and 12.2.1.4.0. It allows a low-privileged attacker with network access to compromise the system, potentially leading to a complete takeover.

Affected Systems and Versions

The Oracle BI Publisher versions 5.9.0.0.0, 6.4.0.0.0, and 12.2.1.4.0 are confirmed to be affected by CVE-2023-21846. Users utilizing these versions may be vulnerable to exploitation.

Exploitation Mechanism

This vulnerability is categorized as having a network attack vector with low complexity and low privileges required. It does not necessitate user interaction and can have a significant impact on confidentiality, integrity, and availability once exploited.

Mitigation and Prevention

Learn about the steps to mitigate the risks associated with CVE-2023-21846 and safeguard your Oracle BI Publisher installations.

Immediate Steps to Take

Immediately apply any available patches or security updates provided by Oracle to address CVE-2023-21846. Additionally, restrict network access to reduce the attack surface for potential exploitation.

Long-Term Security Practices

Implementing robust security measures such as network segmentation, regular security audits, and access control mechanisms can help mitigate future vulnerabilities and enhance overall system security.

Patching and Updates

Regularly monitor for security advisories from Oracle and promptly apply patches and updates to ensure that your Oracle BI Publisher environment is protected from known vulnerabilities, including CVE-2023-21846.