Vulnerability · Published Dec 13, 2023 · Assigned by GitHub_M

CVE-2023-48702Jellyfin Possible Remote Code Execution via custom FFmpeg binary

High 7.2

In plain English

A high-severity command injection in jellyfin from jellyfin. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities).

Severity (CVSS 3.1)7.2High

Exploit odds (30 days)1.2%top 31.8% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Jellyfin is a system for managing and streaming media. Prior to version 10.8.13, the `/System/MediaEncoder/Path` endpoint executes an arbitrary file using `ProcessStartInfo` via the `ValidateVersion` function. A malicious administrator can setup a network share and supply a UNC path to `/System/MediaEncoder/Path` which points to an executable on the network share, causing Jellyfin server to run the executable in the local context. The endpoint was removed in version 10.8.13.

Affected products (as reported)

Vendor	Product	Versions
jellyfin	jellyfin	< 10.8.13

Weakness: CWE-77 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References

https://securitylab.github.com/advisories/GHSL-2023-028_jellyfin/ x_refsource_CONFIRM
https://github.com/jellyfin/jellyfin/security/advisories/GHSA-rr9h-w522-cvmr x_refsource_MISC
https://github.com/jellyfin/jellyfin/commit/83d2c69516471e2db72d9273c6a04247d0f37c86 x_refsource_MISC