CVE-2021-43068 : Security Advisory and Response

A vulnerability in Fortinet FortiAuthenticator version 6.4.0 allows bypassing the second factor of authentication, impacting network security.

Understanding CVE-2021-43068

This CVE discloses a security issue in Fortinet FortiAuthenticator version 6.4.0, potentially enabling unauthorized access.

What is CVE-2021-43068?

The vulnerability permits users to circumvent the second authentication factor through a RADIUS login portal, compromising security measures.

The Impact of CVE-2021-43068

The vulnerability poses a medium-severity threat with a base score of 5.4. If exploited, it could lead to unauthorized access due to an improper authentication mechanism.

Technical Details of CVE-2021-43068

This section delves into the technical specifics of the vulnerability.

Vulnerability Description

The flaw allows users to bypass the second factor of authentication through the RADIUS login portal in FortiAuthenticator 6.4.0, undermining network security.

Affected Systems and Versions

Product: Fortinet FortiAuthenticator
Vendor: Fortinet
Vulnerable Version: FortiAuthenticator 6.4.0

Exploitation Mechanism

The vulnerability can be exploited by leveraging a proof-of-concept exploit to bypass the second factor of authentication.

Mitigation and Prevention

Protecting systems from CVE-2021-43068 is crucial to maintaining network security.

Immediate Steps to Take

Upgrade Fortinet FortiAuthenticator to a patched version or apply recommended security updates.
Employ additional security layers to mitigate the risk of unauthorized access.

Long-Term Security Practices

Regularly review and update access control policies to prevent authentication bypass vulnerabilities.
Conduct security assessments and penetration testing to identify and address similar issues proactively.

Patching and Updates

Stay informed about security advisories from Fortinet and promptly apply patches or updates to fortify system defenses.