CVE-2023-28797 LPE using arbitrary file delete with Symlinks
A local attacker can exploit symlink handling in Zscaler Client Connector to delete arbitrary files and execute code with elevated privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-28797?
CVE-2023-28797 is a medium-severity path traversal vulnerability in Zscaler Client Connector, published on 23 Oct 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Zscaler Client Connector for Windows before 4.1 writes/deletes a configuration file inside specific folders on the disk. A malicious user can replace the folder and execute code as a privileged user.
Weakness: CWE-59
Which versions are affected by CVE-2023-28797?
It affects 1 product.
Products include Zscaler Client Connector.
How do I fix CVE-2023-28797?
No fix has been published for CVE-2023-28797 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-2023-28797 being exploited?
There is no known exploitation of CVE-2023-28797 in the wild and no public exploit code.
Other vulnerabilities in Zscaler Client Connector
Sources
Also known as GHSA-fgvx-4256-89cx.