CVE-2021-2423 : Security Advisory and Response

A vulnerability has been identified in the Oracle Outside In Technology product of Oracle Fusion Middleware, specifically in the Outside In Filters component. This vulnerability, assigned CVE-2021-2423, affects version 8.5.5 of the product. An unauthenticated attacker with network access via HTTP can exploit this vulnerability, potentially leading to a denial of service (DOS) attack on Oracle Outside In Technology.

Understanding CVE-2021-2423

This section will delve into the details of CVE-2021-2423, including its impact and technical aspects.

What is CVE-2021-2423?

The vulnerability in the Oracle Outside In Technology product allows an unauthenticated attacker over the network to compromise the system, resulting in a complete DOS attack. The CVSS base score for this vulnerability is 7.5, indicating high availability impact.

The Impact of CVE-2021-2423

Successful exploitation of this vulnerability can enable unauthorized parties to disrupt the normal functioning of Oracle Outside In Technology, potentially causing system crashes and hangs, leading to availability issues.

Technical Details of CVE-2021-2423

In this section, we will explore the technical details of CVE-2021-2423, including the vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability in Oracle Outside In Technology, affecting version 8.5.5, allows unauthenticated attackers to compromise the system over the network, potentially leading to a complete DOS due to system crashes or hangs.

Affected Systems and Versions

The vulnerable version of Oracle Outside In Technology is 8.5.5.

Exploitation Mechanism

Attackers exploit this vulnerability by sending malicious HTTP requests over the network, leveraging the unauthenticated access to compromise Oracle Outside In Technology.

Mitigation and Prevention

This section will outline the steps to mitigate and prevent the exploitation of CVE-2021-2423.

Immediate Steps to Take

Organizations should apply security patches provided by Oracle to address this vulnerability promptly. It is crucial to monitor network traffic for any suspicious activity.

Long-Term Security Practices

Implement robust network security measures, access controls, and regular security updates to prevent similar vulnerabilities in the future.

Patching and Updates

Stay informed about security updates released by Oracle for Outside In Technology. Regularly update the software to the latest secure versions to mitigate potential risks.