CVE-2020-11500 : What You Need to Know

Zoom Client for Meetings through 4.6.9 uses the ECB mode of AES for video and audio encryption. Within a meeting, all participants use a single 128-bit key.

Understanding CVE-2020-11500

This CVE highlights a vulnerability in the encryption method used by Zoom Client for Meetings.

What is CVE-2020-11500?

CVE-2020-11500 pertains to the use of the ECB mode of AES for video and audio encryption in Zoom meetings, where all participants share a single 128-bit key.

The Impact of CVE-2020-11500

The vulnerability could potentially compromise the confidentiality of Zoom meetings, allowing unauthorized access to encrypted video and audio streams.

Technical Details of CVE-2020-11500

Zoom Client for Meetings through version 4.6.9 is affected by this vulnerability.

Vulnerability Description

Zoom uses the less secure ECB mode of AES for encryption, which can lead to security weaknesses.

Affected Systems and Versions

Product: Zoom Client for Meetings
Version: Up to 4.6.9

Exploitation Mechanism

Attackers could exploit this vulnerability to intercept and decrypt video and audio data shared during Zoom meetings.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent potential security risks associated with CVE-2020-11500.

Immediate Steps to Take

Update Zoom Client for Meetings to the latest version that addresses this vulnerability.
Avoid sharing sensitive information during Zoom meetings until the issue is resolved.

Long-Term Security Practices

Use additional encryption tools or secure communication platforms for sensitive discussions.
Educate users on the importance of secure communication practices.

Patching and Updates

Regularly check for updates and patches from Zoom to ensure the latest security fixes are applied.