CVE-2021-36174 : Exploit Details and Defense Strategies

A memory allocation vulnerability exists in Fortinet FortiPortal before 6.0.6 that could be exploited by an attacker to launch a denial of service attack. This CVE has a CVSS base score of 4.3.

Understanding CVE-2021-36174

This section delves into the impact and technical details of the CVE.

What is CVE-2021-36174?

The vulnerability in Fortinet FortiPortal before 6.0.6 allows an attacker to trigger a denial of service attack through specially crafted license blobs.

The Impact of CVE-2021-36174

With a CVSS base score of 4.3, this vulnerability poses a medium severity risk. Attackers can exploit it to disrupt services and impact availability.

Technical Details of CVE-2021-36174

Let's explore the technical aspects of this CVE.

Vulnerability Description

The flaw arises from a memory allocation issue in the license verification function, enabling attackers to trigger a denial of service attack.

Affected Systems and Versions

Fortinet FortiPortal versions before 6.0.6 are susceptible to this vulnerability.

Exploitation Mechanism

By sending specially crafted license blobs, malicious actors can exploit this vulnerability to perform denial of service attacks.

Mitigation and Prevention

Discover the steps to mitigate and prevent the exploitation of CVE-2021-36174.

Immediate Steps to Take

As a precaution, Fortinet FortiPortal users should update to version 6.0.6 to mitigate the risk of exploitation.

Long-Term Security Practices

Implementing secure coding practices and ensuring timely updates can help prevent similar vulnerabilities in the future.

Patching and Updates

Regularly apply security patches and updates provided by Fortinet to address known vulnerabilities and enhance system security.