CVE-2020-17397 : Vulnerability Insights and Analysis

This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 15.1.4. An attacker must first obtain the ability to execute high-privileged code on the target guest system to exploit this flaw. The issue stems from improper validation of user-supplied data, leading to memory corruption and potential privilege escalation.

Understanding CVE-2020-17397

This CVE affects Parallels Desktop version 15.1.4.

What is CVE-2020-17397?

CVE-2020-17397 is a vulnerability that enables local attackers to elevate privileges on Parallels Desktop 15.1.4 installations by exploiting a flaw in network packet handling due to inadequate user data validation.

The Impact of CVE-2020-17397

The vulnerability has a CVSS base score of 7.5, indicating a high severity level. Its impact includes high confidentiality, integrity, and availability risks, requiring high privileges and local access for exploitation.

Technical Details of CVE-2020-17397

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The vulnerability arises from improper handling of network packets, leading to memory corruption and potential privilege escalation for attackers.

Affected Systems and Versions

Product: Parallels Desktop
Vendor: Parallels
Version: 15.1.4

Exploitation Mechanism

Attack Complexity: High
Attack Vector: Local
Privileges Required: High
User Interaction: None
Scope: Changed
The attacker needs to execute high-privileged code on the target guest system to exploit the vulnerability.

Mitigation and Prevention

Protecting systems from CVE-2020-17397 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by Parallels promptly.
Monitor and restrict high-privileged code execution on guest systems.

Long-Term Security Practices

Implement strict input validation mechanisms to prevent memory corruption vulnerabilities.
Regularly update and patch software to address known security issues.
Conduct security assessments and audits to identify and mitigate potential vulnerabilities.
Educate users on safe computing practices to prevent exploitation.
Utilize security tools and solutions to enhance system protection.
Stay informed about emerging threats and security best practices.

Patching and Updates

Ensure that Parallels Desktop is updated to the latest version to mitigate the CVE-2020-17397 vulnerability.