CVE-2018-21031 Explained : Impact and Mitigation

Tautulli versions 2.1.38 and older have a vulnerability that allows remote attackers to bypass access control in Plex Media Server by mishandling the X-Plex-Token.

Understanding CVE-2018-21031

This CVE involves a security issue in Tautulli that impacts the access control of Plex Media Server.

What is CVE-2018-21031?

The vulnerability in Tautulli versions 2.1.38 and below enables attackers to circumvent the intended access control mechanisms in Plex Media Server by exploiting the mishandling of the X-Plex-Token.

The Impact of CVE-2018-21031

The vulnerability allows remote attackers to bypass access control in Plex Media Server, potentially leading to unauthorized access to sensitive information and functionalities.

Technical Details of CVE-2018-21031

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

Vulnerability Description

Tautulli versions 2.1.38 and older mishandle the X-Plex-Token, allowing attackers to bypass access control in Plex Media Server.

Affected Systems and Versions

Tautulli versions 2.1.38 and below

Exploitation Mechanism

Attackers can obtain the X-Plex-Token from Tautulli to bypass access control in Plex Media Server.

Mitigation and Prevention

Protecting systems from CVE-2018-21031 is crucial to maintaining security.

Immediate Steps to Take

Update Tautulli to the latest version to patch the vulnerability.
Monitor and restrict access to sensitive information within Plex Media Server.

Long-Term Security Practices

Regularly update all software components to prevent vulnerabilities.
Implement strong access control measures to limit unauthorized access.

Patching and Updates

Apply security patches promptly to address known vulnerabilities and enhance system security.