CVE-2021-36306 Explained : Impact and Mitigation

A detailed overview of a vulnerability in Dell's Networking OS versions prior to October 2021 with RESTCONF API enabled, allowing remote attackers to bypass authentication.

Understanding CVE-2021-36306

This section covers the impact, technical details, and mitigation strategies related to CVE-2021-36306.

What is CVE-2021-36306?

CVE-2021-36306 is an authentication bypass vulnerability in Dell's Networking OS10. Remote unauthenticated attackers could exploit this flaw to access and manipulate affected systems.

The Impact of CVE-2021-36306

With a CVSS base score of 8.1 (High), this vulnerability has a significant impact on confidentiality, integrity, and availability. Attackers can exploit it over the network without requiring user interaction.

Technical Details of CVE-2021-36306

Explore the specific details of the vulnerability.

Vulnerability Description

The vulnerability exists in Networking OS10 versions with RESTCONF API enabled, allowing unauthorized access to the system.

Affected Systems and Versions

Dell's Networking OS versions prior to October 2021 are affected, including OS10 10.4.3.8, OS10 10.5.0.6C3, OS10 10.5.0.10, OS10 10.5.1.10, OS10 10.5.2.8, OS10 10.5.3.0P1, and OS10 10.5.2.3kcc.

Exploitation Mechanism

Remote unauthenticated attackers can bypass authentication mechanisms in affected versions, potentially leading to unauthorized system access.

Mitigation and Prevention

Find out how to address and prevent the CVE-2021-36306 vulnerability.

Immediate Steps to Take

Disable RESTCONF API if not required and monitor for any unauthorized access attempts.

Long-Term Security Practices

Regularly update Networking OS to patched versions and follow security best practices to strengthen system defenses.

Patching and Updates

Refer to Dell's security advisory and apply recommended patches and updates to mitigate the vulnerability.