CVE-2023-48702

Jellyfin Possible Remote Code Execution via custom FFmpeg binary

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

jellyfin

CVSS v3.1 NVD

7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS

1.20% chance of exploitation in the next 30 days, 68th percentile

Published

2023-12-13

Updated

2024-08-02

Proof-of-concept exploits (1)

• https://securitylab.github.com/advisories/GHSL-2023-028_jellyfin/

Security advisories

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

References

• CVE Record
• NVD entry