CVE-2021-34986

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://kb.parallels.com/en/125013	Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-385/	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:parallels:parallels_desktop:16.5.0:*:*:*:*:macos:*:*

History

No history.

Information

Published : 2022-07-15 19:15

Updated : 2022-07-22 14:01

NVD link : CVE-2021-34986

Mitre link : CVE-2021-34986

CVE.ORG link : CVE-2021-34986

JSON object : View

Products Affected

parallels

parallels_desktop

CWE

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

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7.8 /10