CVE-2021-27243

This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.0.1-48919. 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 validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-11924.

CVSS v3 8.8 HIGH
CVSS v2.0 4.6 MEDIUM

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.0 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

4.6^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://kb.parallels.com/en/125013	Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-210/	Third Party Advisory VDB Entry
https://kb.parallels.com/en/125013	Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-210/	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:parallels:parallels_desktop:16.0.1:*:*:*:*:macos:*:*

History

21 Nov 2024, 05:57

Type	Values Removed	Values Added
References	~~() https://kb.parallels.com/en/125013 - Vendor Advisory~~	() https://kb.parallels.com/en/125013 - Vendor Advisory
References	~~() https://www.zerodayinitiative.com/advisories/ZDI-21-210/ - Third Party Advisory, VDB Entry~~	() https://www.zerodayinitiative.com/advisories/ZDI-21-210/ - Third Party Advisory, VDB Entry

Information

Published : 2021-03-29 21:15

Updated : 2024-11-21 05:57

NVD link : CVE-2021-27243

Mitre link : CVE-2021-27243

CVE.ORG link : CVE-2021-27243

JSON object : View

Products Affected

parallels

parallels_desktop

CWE

CWE-190

Integer Overflow or Wraparound

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