CVE-2020-17398 : Security Advisory and Response

This vulnerability in Parallels Desktop 15.1.4 allows local attackers to disclose information by exploiting a flaw in the prl_hypervisor kext. The lack of proper validation of user-supplied data can lead to arbitrary code execution in the kernel.

Understanding CVE-2020-17398

This CVE involves a vulnerability in Parallels Desktop 15.1.4 that can be exploited by local attackers to disclose information on affected installations.

What is CVE-2020-17398?

Local attackers can exploit this vulnerability in Parallels Desktop 15.1.4 to disclose information.
The flaw exists within the prl_hypervisor kext due to improper validation of user-supplied data.

The Impact of CVE-2020-17398

Attackers can execute arbitrary code in the kernel context by leveraging this vulnerability.
Confidentiality impact is high, and integrity impact is none.

Technical Details of CVE-2020-17398

This section provides technical details about the vulnerability.

Vulnerability Description

The vulnerability allows local attackers to disclose information on affected Parallels Desktop installations.
It stems from improper validation of user-supplied data within the prl_hypervisor kext.

Affected Systems and Versions

Product: Desktop
Vendor: Parallels
Version: 15.1.4

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: Low
User Interaction: None
Scope: Changed
CVSS Base Score: 6.5 (Medium)

Mitigation and Prevention

Protect your systems from CVE-2020-17398 with these mitigation strategies.

Immediate Steps to Take

Apply security patches provided by Parallels promptly.
Monitor for any unusual activities on the system.

Long-Term Security Practices

Regularly update and patch software to prevent vulnerabilities.
Implement least privilege access controls to limit potential damage.

Patching and Updates

Stay informed about security updates from Parallels.
Keep all software and systems up to date to mitigate potential risks.