Advisory Details

July 1st, 2022

Parallels Access Agent Uncontrolled Search Path Element Local Privilege Escalation Vulnerability

ZDI-22-948
ZDI-CAN-16137

CVE ID CVE-2022-34901
CVSS SCORE 7.8, AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS Parallels
AFFECTED PRODUCTS Access
VULNERABILITY DETAILS

This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Access Agent. 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 Parallels Service. The service executes files from an unsecured location. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root.

ADDITIONAL DETAILS Parallels has issued an update to correct this vulnerability. More details can be found at:
https://kb.parallels.com/en/129010
DISCLOSURE TIMELINE
  • 2021-12-22 - Vulnerability reported to vendor
  • 2022-07-01 - Coordinated public release of advisory
CREDIT Reno Robert of Trend Micro Zero Day Initiative
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