QID 375792

Date Published: 2021-08-16

QID 375792: Parallels Desktop Privilege Escalation Multiple Vulnerabilities(ZDI-CAN-13544,ZDI-CAN-13581,ZDI-CAN-13592,ZDI-CAN-13601)

Parallels Desktop for Mac is desktop virtualization software that allows Microsoft Windows, Linux and Google Chrome operating systems and
applications to run on an Apple Mac computer.

CVE-2021-34854:Parallels Desktop Toolgate Uncontrolled Memory Allocation Privilege Escalation Vulnerability
CVE-2021-34857:Parallels Desktop Toolgate Out-Of-Bounds Write Privilege Escalation Vulnerability
CVE-2021-34855:Parallels Desktop Toolgate Uninitialized Memory Information Disclosure Vulnerability
CVE-2021-34856:Parallels Desktop virtio-gpu Memory Corruption Privilege Escalation Vulnerability

Affected Products:
Parallels Desktop: before 16.5.1

QID Detection Logic (Authenticated) :
This checks for vulnerable version of Parallels Desktop app on MAC OS.

An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor.

CVSS V3 rated as High - 7.8 severity.

CVSS V2 rated as Medium - 3.7 severity.

Solution

Vendor has released fix to address these vulnerabilities. Refer to Parallels Desktop

Vendor References

125013 - kb.parallels.com/125013

CVEs related to QID 375792

CVE-2021-34857 | CVE-2021-34854 | CVE-2021-34855 | CVE-2021-34856 |

Software Advisories

Advisory ID	Software	Link
ZDI-CAN-13544	MacOs	kb.parallels.com/125013
ZDI-CAN-13581	MacOs	kb.parallels.com/125013
ZDI-CAN-13592	MacOs	kb.parallels.com/125013
ZDI-CAN-13601	MacOs	kb.parallels.com/125013

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