CVE-2021-34408 Path traversal in Zoom Client for Meetings for Windows
Privileged user writes logs to user-writable directory, allowing privilege escalation via symlink attack in Zoom Client for Windows.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-34408?
CVE-2021-34408 is a high-severity path traversal vulnerability in Zoom Client for Meetings for Windows, published on 27 Sep 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The Zoom Client for Meetings for Windows in all versions before version 5.3.2 writes log files to a user writable directory as a privileged user during the installation or update of the client. This could allow for potential privilege escalation if a link was created between the user writable directory used and a non-user writable directory.
Weakness: CWE-59
Which versions are affected by CVE-2021-34408?
It affects 1 product.
Products include Zoom Meetings.
How do I fix CVE-2021-34408?
No fix has been published for CVE-2021-34408 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2021-34408 being exploited?
There is no known exploitation of CVE-2021-34408 in the wild and no public exploit code.
Other vulnerabilities in Zoom Client for Meetings for Windows
- CVE-2021-33907 Code injection in Zoom Client for Meetings for Windows
- CVE-2022-28768 Local Privilege Escalation in Zoom Client Installer for macOS
- CVE-2022-28763 Improper URL parsing in Zoom Clients
- CVE-2022-28757 Local Privilege Escalation in Auto Updater for Zoom Client for Meetings for macOS
- CVE-2022-28751 Local Privilege Escalation in Zoom Client for Meetings for MacOS
Sources
Also known as GHSA-5x62-x2r8-qq76.