CVE-2021-34416 Explained : Impact and Mitigation

A vulnerability has been identified in the network address administrative settings web portal for multiple Zoom on-premise components, allowing remote command injection by web portal administrators. This CVE affects Zoom on-premise Meeting Connector, MMR, Recording Connector, Virtual Room Connector, and Virtual Room Connector Load Balancer.

Understanding CVE-2021-34416

This section provides insights into the nature and impact of the CVE.

What is CVE-2021-34416?

The CVE-2021-34416 vulnerability arises from a failure to validate input sent in requests to update network configuration settings on the affected Zoom on-premise components. This lack of input validation can be exploited by attackers to execute remote commands on the on-premise image.

The Impact of CVE-2021-34416

The impact of this vulnerability is severe as it allows unauthorized individuals to inject and execute commands on the vulnerable components, potentially leading to system compromise and unauthorized access.

Technical Details of CVE-2021-34416

This section covers the technical aspects of the CVE in detail.

Vulnerability Description

The vulnerability results from improper neutralization of special elements used in an OS command, which enables attackers to inject malicious commands remotely through the network address administrative settings web portal.

Affected Systems and Versions

The affected products include Zoom on-premise Meeting Connector, MMR, Recording Connector, Virtual Room Connector, and Virtual Room Connector Load Balancer before specific versions released in 2021.

Exploitation Mechanism

By sending crafted input requests to update network configuration settings, threat actors can inject commands into the web portal, exploiting the lack of input validation.

Mitigation and Prevention

Protecting systems from CVE-2021-34416 is crucial to ensure the security of Zoom on-premise components.

Immediate Steps to Take

Organizations should apply security patches provided by Zoom promptly to mitigate the vulnerability and prevent exploitation by malicious actors.

Long-Term Security Practices

Implementing robust network security measures, conducting regular security assessments, and training employees on secure configuration practices can help prevent similar vulnerabilities in the future.

Patching and Updates

Regularly updating Zoom on-premise Meeting Connector, MMR, Recording Connector, Virtual Room Connector, and Virtual Room Connector Load Balancer to versions that address the CVE is essential to ensure system security.