CVE-2021-34855

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.0 / Impact : 4.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

2.1 /10

CVSS v2.0 : LOW

V2 Legend

Vector : AV:L/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

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

Configuration 1 (hide)

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

27 Oct 2021, 22:18

Type Values Removed Values Added
CPE cpe:2.3:a:parallels:parallels_desktop:16.1.3:*:*:*:*:macos:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : 2.1
v3 : 6.5
References (N/A) https://kb.parallels.com/125013 - (N/A) https://kb.parallels.com/125013 - Patch, Vendor Advisory
References (N/A) https://www.zerodayinitiative.com/advisories/ZDI-21-939/ - (N/A) https://www.zerodayinitiative.com/advisories/ZDI-21-939/ - Third Party Advisory, VDB Entry

25 Oct 2021, 18:15

Type Values Removed Values Added
Summary 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. 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.

25 Oct 2021, 17:19

Type Values Removed Values Added
New CVE
Information

Published : 2021-10-25 17:15

Updated : 2023-12-10 14:09

NVD link : CVE-2021-34855

Mitre link : CVE-2021-34855

CVE.ORG link : CVE-2021-34855

JSON object : View

Products Affected

parallels

  • parallels_desktop
CWE
CWE-908

Use of Uninitialized Resource