#VU76599 Missing Authorization in Emby Server

Vulnerability identifier: #VU76599

Vulnerability risk: Critical

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: N/A

CWE-ID: CWE-862

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Emby Server
Server applications / File servers (FTP/HTTP)

Vendor: MediaBrowser

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insecure default configuration. A remote non-authenticated attacker can send a specially crafted request to the server and execute arbitrary code on the target system.

Note, the vulnerability is being actively exploited in the wild.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Emby Server: 4.7.0.0 - 4.7.11.0, 4.8.0.0 - 4.8.0.30

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External links
https://emby.media/support/articles/advisory-23-05.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.