How does CVE-2021-31421 affect Parallels Desktop?

CVE-2021-31421 affects installations of Parallels Desktop 16.1.1-49141.

What is the severity of CVE-2021-31421?

CVE-2021-31421 has a severity level of medium.

How can I fix CVE-2021-31421?

To fix CVE-2021-31421, update Parallels Desktop to a version that is not affected by the vulnerability and follow the recommendations provided by Parallels.

Where can I find more information about CVE-2021-31421?

You can find more information about CVE-2021-31421 in the Parallels knowledge base article and the Zero Day Initiative advisory.

Vulnerability/
CVE-2021-31421

medium

CWE

29/4/2021

3/8/2024

CVE-2021-31421: Parallels Desktop Toolgate Directory Traversal Arbitrary File Deletion Vulnerability

First published: Thu Apr 29 2021(Updated: )

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.

Credit: zdi-disclosures@trendmicro.com

Affected Software	Affected Version	How to fix
Parallels Desktop
Parallels Parallels Desktop	=16.1.1-49141

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Reference Links

Frequently Asked Questions

What is CVE-2021-31421?
CVE-2021-31421 is a vulnerability that allows local attackers to delete arbitrary files on affected installations of Parallels Desktop 16.1.1-49141.
How does CVE-2021-31421 affect Parallels Desktop?
CVE-2021-31421 affects installations of Parallels Desktop 16.1.1-49141.
What is the severity of CVE-2021-31421?
CVE-2021-31421 has a severity level of medium.
How can I fix CVE-2021-31421?
To fix CVE-2021-31421, update Parallels Desktop to a version that is not affected by the vulnerability and follow the recommendations provided by Parallels.
Where can I find more information about CVE-2021-31421?
You can find more information about CVE-2021-31421 in the Parallels knowledge base article and the Zero Day Initiative advisory.

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