CVE-2021-34413 : Security Advisory and Response
Discover the impact of CVE-2021-34413 affecting Zoom Plugin for Microsoft Outlook for MacOS. Learn about the TOC/TOU flaw and how to mitigate this security threat.
This CVE-2021-34413 affects all versions of the Zoom Plugin for Microsoft Outlook for MacOS before 5.3.52553.0918. It involves a Time-of-check Time-of-use (TOC/TOU) vulnerability during the plugin installation process, potentially allowing a standard user to execute a malicious application in a privileged context.
Understanding CVE-2021-34413
This section will delve deeper into the details of the vulnerability identified as CVE-2021-34413.
What is CVE-2021-34413?
The CVE-2021-34413 vulnerability exists in all versions of the Zoom Plugin for Microsoft Outlook for MacOS before 5.3.52553.0918. It exposes a Time-of-check Time-of-use (TOC/TOU) flaw during the plugin installation procedure.
The Impact of CVE-2021-34413
This vulnerability could be leveraged by a regular user to introduce a malevolent application to the plugin directory, leading to the execution of the malicious application in a privileged environment.
Technical Details of CVE-2021-34413
Let's explore the technical specifics of CVE-2021-34413 to understand its implications better.
Vulnerability Description
The vulnerability allows unauthorized users to write and execute their malicious applications within the plugin directory.
Affected Systems and Versions
All versions of the Zoom Plugin for Microsoft Outlook for MacOS before 5.3.52553.0918 are impacted by this security issue.
Exploitation Mechanism
The flaw arises during the plugin installation, enabling a standard user to tamper with the plugin directory, which can be exploited to run unauthorized applications.
Mitigation and Prevention
Discover the necessary steps to mitigate the risks associated with CVE-2021-34413.
Immediate Steps to Take
Users are advised to update Zoom Plugin for Microsoft Outlook for MacOS to version 5.3.52553.0918 or above to prevent exploitation.
Long-Term Security Practices
Implementing stringent controls over directory permissions and restricting unauthorized access can enhance long-term security.
Patching and Updates
Regularly update the Zoom Plugin for Microsoft Outlook for MacOS to ensure protection against known vulnerabilities.