CVE-2021-34412 : Vulnerability Insights and Analysis

A local privilege escalation vulnerability, CVE-2021-34412 affects all versions of Zoom Client for Meetings for Windows before 5.4.0. The flaw allows the launching of Internet Explorer during installation, potentially leading to unauthorized elevation of privileges.

Understanding CVE-2021-34412

CVE-2021-34412 is a security vulnerability found in Zoom Client for Meetings for Windows, enabling a local privilege escalation attack by launching Internet Explorer during installation.

What is CVE-2021-34412?

CVE-2021-34412 is a vulnerability in Zoom Client for Meetings for Windows, allowing users to elevate privileges illegitimately by launching Internet Explorer during installation.

The Impact of CVE-2021-34412

The impact of CVE-2021-34412 is the potential for unauthorized elevation of privileges, leading to local privilege escalation on systems running affected versions of Zoom Client for Meetings for Windows.

Technical Details of CVE-2021-34412

CVE-2021-34412 involves incorrect privilege assignment during the installation process, affecting all versions of Zoom Client for Meetings for Windows before 5.4.0.

Vulnerability Description

During the installation process of affected versions, launching Internet Explorer can result in a local privilege escalation due to incorrect privilege assignment.

Affected Systems and Versions

All versions of Zoom Client for Meetings for Windows before 5.4.0 are affected by CVE-2021-34412, potentially allowing unauthorized privileges escalation.

Exploitation Mechanism

The flaw can be exploited by launching Internet Explorer during the installation process with elevated privileges, such as those by SCCM, enabling a local privilege escalation attack.

Mitigation and Prevention

To address CVE-2021-34412, immediate steps need to be taken to secure systems and prevent unauthorized privilege escalation.

Immediate Steps to Take

Users should update Zoom Client for Meetings for Windows to version 5.4.0 or above to mitigate the vulnerability and prevent potential local privilege escalation.

Long-Term Security Practices

Implementing effective privilege management policies and monitoring installation processes can enhance security posture and prevent similar vulnerabilities.

Patching and Updates

Regularly applying security patches and updates for Zoom Client for Meetings for Windows is crucial to maintaining a secure environment and safeguarding against potential risks.