Vulnerability · Published Jul 15, 2022 · Assigned by zdi
CVE-2021-34986
High 7.8
In plain English
A high-severity security flaw in Desktop from Parallels. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).
Official description
This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.5.0 (49183). An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the Parallels Service. By creating a symbolic link, an attacker can abuse the service to execute a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. Was ZDI-CAN-13932.
Affected products (as reported)
Weakness: CWE-367 · Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://kb.parallels.com/en/125013 x_refsource_MISC
- https://www.zerodayinitiative.com/advisories/ZDI-22-385/ x_refsource_MISC