CVE-2021-31421 Path traversal in Desktop
Local attackers with high privileges can delete arbitrary files on the host system via path traversal in Parallels Desktop.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-31421?
CVE-2021-31421 is a low-severity path traversal vulnerability in Parallels Parallels Desktop, published on 29 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
This vulnerability allows local attackers to delete arbitrary files on affected installations of Parallels Desktop 16.1.1-49141. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the Toolgate component. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to delete arbitrary files in the context of the hypervisor. Was ZDI-CAN-12129.
Weakness: CWE-22
Which versions are affected by CVE-2021-31421?
It affects 1 product.
Products include Parallels Parallels Desktop.
How do I fix CVE-2021-31421?
No fix has been published for CVE-2021-31421 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-2021-31421 being exploited?
There is no known exploitation of CVE-2021-31421 in the wild and no public exploit code.
Other vulnerabilities in Parallels Parallels Desktop
Sources
Also known as GHSA-wh35-796x-vwgj.