CVE-2020-5740 : What You Need to Know

Plex Media Server (Windows) versions prior to 1.19.2.2673-776106bc6 are affected by an Improper Input Validation vulnerability that allows a local, unauthenticated attacker to execute arbitrary Python code with SYSTEM privileges.

Understanding CVE-2020-5740

What is CVE-2020-5740?

This CVE identifies an issue in Plex Media Server on Windows that enables attackers to run Python code with elevated privileges.

The Impact of CVE-2020-5740

The vulnerability permits unauthorized local users to execute malicious Python scripts with SYSTEM-level permissions.

Technical Details of CVE-2020-5740

Vulnerability Description

The flaw arises from inadequate input validation in Plex Media Server, leading to the execution of unauthorized Python code.

Affected Systems and Versions

Product: Plex Media Server (Windows)
Versions Affected: Prior to 1.19.2.2673-776106bc6

Exploitation Mechanism

Attackers can exploit this vulnerability locally without authentication, enabling the execution of arbitrary Python code with elevated privileges.

Mitigation and Prevention

Immediate Steps to Take

Update Plex Media Server to version 1.19.2.2673-776106bc6 or later to mitigate the vulnerability.
Restrict network access to the server to minimize exposure to potential attackers.

Long-Term Security Practices

Regularly monitor for security advisories and updates from Plex Media Server.
Implement the principle of least privilege to limit the impact of potential security breaches.

Patching and Updates

Ensure timely installation of security patches and updates provided by Plex Media Server to address known vulnerabilities.