CVE-2021-27278 Path traversal in Desktop
Local attackers can escalate privileges and execute code on the host system via path traversal in Parallels Desktop Toolgate.
- 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-2021-27278?
CVE-2021-27278 is a high-severity path traversal vulnerability in Parallels Parallels Desktop, published on 22 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 escalate privileges 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 escalate privileges and execute code in the context of the current user on the host system. Was ZDI-CAN-12130.
Weakness: CWE-22
Which versions are affected by CVE-2021-27278?
It affects 1 product.
Products include Parallels Parallels Desktop.
How do I fix CVE-2021-27278?
No fix has been published for CVE-2021-27278 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-2021-27278 being exploited?
There is no known exploitation of CVE-2021-27278 in the wild and no public exploit code.
Other vulnerabilities in Parallels Parallels Desktop
Sources
Also known as GHSA-qfmv-4j24-m4gx.