CVE-2020-3997 : Vulnerability Insights and Analysis

VMware Horizon Server (7.x prior to 7.10.3 or 7.13.0) contains a Cross Site Scripting (XSS) vulnerability that could allow an attacker to inject and execute malicious scripts.

Understanding CVE-2020-3997

This CVE identifies a Cross Site Scripting (XSS) vulnerability in VMware Horizon Server.

What is CVE-2020-3997?

CVE-2020-3997 refers to a security flaw in VMware Horizon Server versions 7.x prior to 7.10.3 or 7.13.0. It enables attackers to inject harmful scripts for execution.

The Impact of CVE-2020-3997

Exploiting this vulnerability can lead to the execution of malicious scripts within the context of the user's session, potentially compromising sensitive data and system integrity.

Technical Details of CVE-2020-3997

VMware Horizon Server's XSS vulnerability is detailed below.

Vulnerability Description

VMware Horizon Server (7.x prior to 7.10.3 or 7.13.0) is susceptible to Cross Site Scripting (XSS) attacks.

Affected Systems and Versions

Product: VMware Horizon Server
Versions Affected: VMware Horizon Server (7.x prior to 7.10.3 or 7.13.0)

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts, which are then executed within the application's context.

Mitigation and Prevention

Protect your systems from CVE-2020-3997 with the following measures.

Immediate Steps to Take

Update VMware Horizon Server to version 7.10.3 or 7.13.0 to mitigate the XSS vulnerability.
Implement web application firewalls to filter and block malicious scripts.

Long-Term Security Practices

Regularly monitor and audit web applications for vulnerabilities.
Educate users on safe browsing practices to prevent XSS attacks.

Patching and Updates

Stay informed about security advisories and promptly apply patches to address known vulnerabilities.