CVE-2021-31421 — MEDIUM (6.0)

Vulnerability 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.

CVSS Score

6.0

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Parallels	Parallels Desktop	16.1.1-49141

Related Weaknesses (CWE)

CWE-22

References

https://kb.parallels.com/en/125013Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-425/Third Party AdvisoryVDB Entry
https://kb.parallels.com/en/125013Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-425/Third Party AdvisoryVDB Entry

FAQ

What is CVE-2021-31421?

CVE-2021-31421 is a vulnerability with a CVSS score of 6.0 (MEDIUM). 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 co...

How severe is CVE-2021-31421?

CVE-2021-31421 has been rated MEDIUM with a CVSS base score of 6.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-31421?

Check the references section above for vendor advisories and patch information. Affected products include: Parallels Parallels Desktop.