CVE Vulnerability

CVE-2021-34855

This vulnerability allows local attackers to disclose sensitive information on affected installations of Parallels Desktop 16.1.3 (49160). An attacker must first obtain the ability to execute low-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 initialization of memory prior to accessing it. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-13592.

2.1 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2 / Impact : 4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://www.zerodayinitiative.com/advisories/ZDI-21-939/ Third Party Advisory VDB Entry
https://kb.parallels.com/125013 Patch Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:parallels:parallels_desktop:16.1.3:*:*:*:*:macos:*:*
Information

Published : 2021-10-25 05:15

Updated : 2021-10-27 10:18

NVD link : CVE-2021-34855

Mitre link : CVE-2021-34855

Products Affected

Parallels

Parallels Desktop

CWE
CWE-908