Path Traversal in Parallels Desktop
CVE-2021-31421
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.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.004 (33.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N.
Affected products
- Parallels Desktop — versions 16.1.1-49141
- Parallels Parallels_desktop — versions 16.1.1-49141
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (x_refsource_MISC, Vendor Advisory)
- zdi-disclosures@trendmicro.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-31421?
- CVE-2021-31421 is a medium-severity vulnerability in Parallels Desktop, classified under Path Traversal. CVSS score: 6.0/10. Published 2021-04-29.
- How severe is CVE-2021-31421?
- Medium severity. CVSS v3 base score is 6.0 out of 10.