Vulnerability · Published May 3, 2024 · Assigned by zdi

CVE-2023-27324Parallels Desktop Updater Improper Initialization Local Privilege Escalation Vulnerability

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 0.4% (higher than 31% of all known vulnerabilities).

Severity (CVSS 3.0)7.8High

Exploit odds (30 days)0.4%top 69.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Parallels Desktop Updater Improper Initialization Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop. An attacker must first obtain the ability to execute low-privileged code on the target host system in order to exploit this vulnerability. The specific flaw exists within the Updater service. The issue results from the lack of proper initialization of environment variables. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. . Was ZDI-CAN-18229.

Affected products (as reported)

Vendor	Product	Versions
Parallels	Desktop	18.0.0 (53049)

Weakness: CWE-665 · Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

ZDI-23-218 x_research-advisory
vendor-provided URL vendor-advisory