Medium severity · published Apr 29, 2021
CVE-2021-31421
This vulnerability allows local attackers to delete arbitrary files on affected installations of Parallels Desktop 16.1.1-49141
6.0
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PD
Parallels Desktop · Parallels
16.1.1-49141 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-31421
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-31421
Vendor Advisory
https://kb.parallels.com/en/125013
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-425/
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