CVE-2021-35656 Explained : Impact and Mitigation

A vulnerability has been identified in the Oracle Outside In Technology product of Oracle Fusion Middleware. The affected version is 8.5.5, and it can be exploited by an unauthenticated attacker via HTTP.

Understanding CVE-2021-35656

This section delves into the details of the vulnerability, its impact, technical description, affected systems, exploitation mechanism, and mitigation steps.

What is CVE-2021-35656?

The vulnerability exists in the Outside In Technology product of Oracle Fusion Middleware, specifically in the Outside In Filters component. It allows an unauthenticated attacker with network access via HTTP to compromise Oracle Outside In Technology.

The Impact of CVE-2021-35656

Successful exploitation of this vulnerability can lead to the unauthorized ability to cause a hang or frequently repeatable crash (complete Denial of Service - DOS) of Oracle Outside In Technology. The CVSS Base Score for this vulnerability is 7.5, with a high impact on availability.

Technical Details of CVE-2021-35656

This section provides more insight into the vulnerability, including its description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in Oracle Outside In Technology allows an unauthenticated attacker to compromise the system via HTTP, potentially resulting in a DOS attack.

Affected Systems and Versions

The affected version of the Oracle Outside In Technology product is 8.5.5.

Exploitation Mechanism

The vulnerability can be easily exploited by an unauthenticated attacker with network access via HTTP to compromise Oracle Outside In Technology.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-35656, it is crucial to take immediate steps, follow long-term security practices, and implement necessary patches and updates.

Immediate Steps to Take

Ensure appropriate security measures are in place, monitor network traffic for any suspicious activities, and restrict access to vulnerable systems.

Long-Term Security Practices

Regularly update software and systems, conduct security assessments, and educate users about safe online practices to enhance overall cybersecurity.

Patching and Updates

Apply patches provided by Oracle Corporation to address the vulnerability and prevent potential exploits.