CVE-2022-28764 : Exploit Details and Defense Strategies

A detailed analysis of the local information exposure vulnerability identified in Zoom Clients before version 5.12.6, impacting various operating systems.

Understanding CVE-2022-28764

This section provides insights into the nature and impact of the CVE-2022-28764 vulnerability.

What is CVE-2022-28764?

The Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.12.6 is vulnerable to a local information exposure flaw. This vulnerability allows a local malicious user to access sensitive meeting information from the local SQL database.

The Impact of CVE-2022-28764

The vulnerability exposes in-meeting chat data from previous meetings attended by the local user, potentially leading to unauthorized access to sensitive information.

Technical Details of CVE-2022-28764

In this section, we delve into the technical aspects of the CVE-2022-28764 vulnerability.

Vulnerability Description

The flaw arises from the failure to clear data from the local SQL database after a meeting ends, combined with the usage of an inadequately secure per-device key for encrypting the database.

Affected Systems and Versions

Zoom Client for Meetings, Zoom VDI Windows Meeting Clients, and Zoom Rooms for Conference Room (across various platforms) are affected by this vulnerability, specifically versions less than 5.12.6.

Exploitation Mechanism

A local malicious user can exploit this vulnerability to obtain confidential information such as in-meeting chat data from the previous meeting attended.

Mitigation and Prevention

This section outlines essential steps to mitigate and prevent exploitation of CVE-2022-28764.

Immediate Steps to Take

Users are advised to update Zoom Clients to version 5.12.6 or later to mitigate the vulnerability and ensure secure meeting data handling.

Long-Term Security Practices

Implementing secure data clearing mechanisms and robust encryption practices can enhance the overall security posture and prevent similar vulnerabilities in the future.

Patching and Updates

Regularly updating Zoom Clients to the latest versions and staying informed about security bulletins can help in timely patching of known vulnerabilities.