Name: CVE-2021-42835: Time-of-check Time-of-use (TOCTOU) Race Condition
Creator: Rapid7
Published: 2021-12-08T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-42835, CWE-367, CVSS 7, EPSS 0.142

An issue was discovered in Plex Media Server through 1.24.4.5081-e362dc1ee. An attacker (with a foothold in a endpoint via a low-privileged user account) can access the exposed RPC service of the update service component. This RPC functionality allows the attacker to interact with the RPC functionality and execute code from a path of his choice (local, or remote via SMB) because of a TOCTOU race condition. This code execution is in the context of the Plex update service (which runs as SYSTEM).

CVSS Details

CVSS 3.1 Base Score: 7
CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Freebsd	—	Upgrade plexmediaserver-plexpassUpgrade plexmediaserver	Jan 31, 2023	Jan 30, 2023

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CVSS Details

Covered by Rapid7

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