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CVE-2018-21031

6.5 · MEDIUM

Tautulli versions 2.1.38 and below allows remote attackers to bypass intended access control in Plex Media Server because the X-Plex-Token is mishandled and can be retrieved from Tautulli.

Published Nov 18, 2019CWE-522EPSS 2.06%

Overview

CVE-2018-21031 is a medium-severity vulnerability. It was published on November 18, 2019 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Tautulli versions 2.1.38 and below allows remote attackers to bypass intended access control in Plex Media Server because the X-Plex-Token is mishandled and can be retrieved from Tautulli. NOTE: Initially, this id was associated with Plex Media Server 1.18.2.2029-36236cc4c as the affected product and version. Further research indicated that Tautulli is the correct affected product.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refforums.plex.tv/t/security-regarding-cve-2018-21031/493286Reftwitter.com/GerardFuguet/status/1009937529573912576Refwww.elladodelmal.com/2018/08/shodan-es-de-cine-hacking-tautulli-un.htmlRefwww.exploit-db.com/docs/47790Refforums.plex.tv/t/security-regarding-cve-2018-21031/493286Reftwitter.com/GerardFuguet/status/1009937529573912576Refwww.elladodelmal.com/2018/08/shodan-es-de-cine-hacking-tautulli-un.htmlRefwww.exploit-db.com/docs/47790

How CyberStrike helps

Frequently asked questions

What is CVE-2018-21031?

CVE-2018-21031 is a medium-severity vulnerability. It was published on November 18, 2019 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2018-21031?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2018-21031?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-21031?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-21031 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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