CVE-2020-8873 : Security Advisory and Response

This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 15.1.2-47123. An attacker must first obtain the ability to execute high-privileged code on the target guest system to exploit this flaw within the xHCI component.

Understanding CVE-2020-8873

This CVE-2020-8873 vulnerability affects Parallels Desktop version 15.1.2-47123, allowing local attackers to escalate privileges by executing high-privileged code.

What is CVE-2020-8873?

Local attackers can escalate privileges on Parallels Desktop 15.1.2-47123 installations.
The vulnerability lies within the xHCI component due to improper locking during operations.

The Impact of CVE-2020-8873

CVSS Score: 8.2 (High)
Attack Vector: Local
Privileges Required: High
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Scope: Changed

Technical Details of CVE-2020-8873

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The flaw allows local attackers to escalate privileges by exploiting the lack of proper locking in the xHCI component.

Affected Systems and Versions

Affected Product: Parallels Desktop
Affected Version: 15.1.2-47123

Exploitation Mechanism

Attackers need the ability to execute high-privileged code on the target guest system to exploit this vulnerability.

Mitigation and Prevention

Learn how to mitigate and prevent the CVE-2020-8873 vulnerability.

Immediate Steps to Take

Update Parallels Desktop to a patched version.
Monitor for any unauthorized system changes.
Restrict access to high-privileged operations.

Long-Term Security Practices

Implement the principle of least privilege.
Regularly audit and review system configurations.
Educate users on secure computing practices.

Patching and Updates

Apply security patches provided by Parallels promptly.