CVE-2022-28761 Explained : Impact and Mitigation

Zoom On-Premise Deployments: Improper Access Control

Understanding CVE-2022-28761

This CVE refers to an improper access control vulnerability found in Zoom On-Premise Meeting Connector MMR before version 4.8.20220916.131, allowing unauthorized actors in a meeting or webinar to disrupt audio and video transmissions.

What is CVE-2022-28761?

The CVE-2022-28761 vulnerability involves unauthorized actors disrupting meeting activities by interfering with audio and video transmissions, affecting meeting participants' experience.

The Impact of CVE-2022-28761

The impact of this vulnerability can lead to meeting disruptions, potentially causing inconvenience and affecting the productivity of the participants involved.

Technical Details of CVE-2022-28761

Vulnerability Description

The improper access control vulnerability in Zoom On-Premise Meeting Connector MMR allows malicious actors to tamper with audio and video data, leading to disruptions in meeting services.

Affected Systems and Versions

Vendor: Zoom Video Communications Inc
Product: Zoom On-Premise Meeting Connector MMR
Affected Version: Less than 4.8.20220916.131

Exploitation Mechanism

Unauthorized actors authorized to join a meeting can exploit this vulnerability to interrupt audio and video streams, impacting meeting continuity.

Mitigation and Prevention

Immediate Steps to Take

To mitigate the risk associated with CVE-2022-28761, it is advisable to update the Zoom On-Premise Meeting Connector MMR to version 4.8.20220916.131 or later to eliminate the vulnerability.

Long-Term Security Practices

Implementing robust access control measures, regular security audits, and employee cybersecurity awareness training can enhance the overall security posture of the organization.

Patching and Updates

Regularly monitor vendor security bulletins and apply patches promptly to safeguard against known vulnerabilities.