CVE-2020-11443 Path traversal in n/a
A local attacker can exploit symbolic links in the Zoom installer to delete arbitrary files with SYSTEM privileges, potentially leading to privilege escalation or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-11443?
CVE-2020-11443 is a high-severity path traversal vulnerability in n/a, published on 4 May 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Zoom IT installer for Windows (ZoomInstallerFull.msi) prior to version 4.6.10 deletes files located in %APPDATA%\Zoom before installing an updated version of the client. Standard users are able to write to this directory, and can write links to other directories on the machine. As the installer runs with SYSTEM privileges and follows these links, a user can cause the installer to delete files that otherwise cannot be deleted by the user.
Which versions are affected by CVE-2020-11443?
It affects 1 product.
Products include Zoom It Installer.
How do I fix CVE-2020-11443?
No fix has been published for CVE-2020-11443 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-2020-11443 being exploited?
There is no known exploitation of CVE-2020-11443 in the wild and no public exploit code.
Sources
Also known as GHSA-wc6m-2q93-p5qr.