CVE-2021-35659 : Exploit Details and Defense Strategies

This CVE-2021-35659 is a vulnerability found in the Oracle Outside In Technology product of Oracle Fusion Middleware. The affected version is 8.5.5, posing a high-risk threat due to an easily exploitable flaw that allows unauthorized attackers to compromise the system.

Understanding CVE-2021-35659

This section will delve into the details of CVE-2021-35659.

What is CVE-2021-35659?

CVE-2021-35659 is a vulnerability in Oracle Outside In Technology, specifically in the Outside In Filters component. Attackers with network access via HTTP can exploit this flaw to compromise the system, potentially causing a complete denial of service (DOS) by repeatedly crashing Oracle Outside In Technology.

The Impact of CVE-2021-35659

The vulnerability poses a high threat, with a CVSS 3.1 Base Score of 7.5, focusing on availability impacts. Successful exploitation allows unauthorized parties to disrupt the normal functioning of Oracle Outside In Technology.

Technical Details of CVE-2021-35659

Exploring the technical aspects of CVE-2021-35659.

Vulnerability Description

The vulnerability in Oracle Outside In Technology allows unauthenticated attackers to exploit the system via HTTP, leading to potential DOS attacks by causing the software to hang or crash repeatedly.

Affected Systems and Versions

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

Exploitation Mechanism

Attackers with network access via HTTP can exploit this vulnerability to compromise Oracle Outside In Technology, potentially resulting in a complete DOS.

Mitigation and Prevention

Implementing security measures to mitigate the risks posed by CVE-2021-35659.

Immediate Steps to Take

To address this vulnerability, users are advised to apply security patches provided by Oracle promptly. Additionally, limiting network exposure for all system devices is crucial to mitigate the risk.

Long-Term Security Practices

Regularly updating and patching systems, implementing network security measures, and monitoring for any unusual network activity are essential for maintaining system security.

Patching and Updates

Oracle Corporation has released security patches to address CVE-2021-35659. Users should apply these patches promptly to protect their systems from potential exploitation.