Zero-day vulnerability in Emby Server

Missing Authorization

Vulnerability details

Advisory: SB2023052914 - Missing authorization in Emby Server

Vulnerable component: Emby Server

CVE-ID:

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-862 - Missing Authorization

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.

External links:

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

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.