Plex Media Server < 1.19.3 Authenticated RCE

medium Nessus Plugin ID 137326
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VPR Score: 7.4

Synopsis

A client-server media player running on the remote host is affected by a remote code execution vulnerability.

Description

According to its self-reported version number, the version of Plex Media Server installed on the remote Windows host is prior to 1.19.3. It is, therefore, affected by an authenticated remote code execution vulnerability in the camera upload feature. An authenticated, remote attacker can exploit this, by uploading a malicious file via the camera upload feature, to cause arbitrary python code to be executed in the context of the current OS user..

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Plex Media Server version 1.19.3 or later.

See Also

https://forums.plex.tv/t/security-regarding-cve-2020-5741/586819

https://www.tenable.com/security/research/tra-2020-32

Plugin Details

Severity: Medium

ID: 137326

File Name: plex_1_19_3.nasl

Version: 1.5

Type: combined

Agent: windows

Family: Windows

Published: 6/11/2020

Updated: 8/14/2020

Dependencies: os_fingerprint.nasl, plex_detect.nbin, plex_win_installed.nbin

Risk Information

Risk Factor: Medium

VPR Score: 7.4

CVSS Score Source: CVE-2020-5741

CVSS v2.0

Base Score: 6.5

Temporal Score: 5.4

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

CVSS v3.0

Base Score: 7.2

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:a:plex:plex_media_server:*:*:*:*:*:*:*:*

Required KB Items: Host/OS, installed_sw/Plex Media Server

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/7/2020

Vulnerability Publication Date: 5/7/2020

Exploitable With

Metasploit (Plex Unpickle Dict Windows RCE)

Reference Information

CVE: CVE-2020-5741