CVE-2023-48702
Prior to version 10.8.13, the `/System/MediaEncoder/Path` endpoint executes an arbitrary file using `ProcessStartInfo` via the `ValidateVersion` function.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.20%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.20% probability · 66th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-77
- Affected
- jellyfin/jellyfin
- Source
- security-advisories@github.com
References
- https://github.com/jellyfin/jellyfin/commit/83d2c69516471e2db72d9273c6a04247d0f37c86Patch
- https://github.com/jellyfin/jellyfin/security/advisories/GHSA-rr9h-w522-cvmrExploit, Vendor Advisory
- https://securitylab.github.com/advisories/GHSL-2023-028_jellyfin/Exploit, Third Party Advisory
- https://github.com/jellyfin/jellyfin/commit/83d2c69516471e2db72d9273c6a04247d0f37c86Patch
- https://github.com/jellyfin/jellyfin/security/advisories/GHSA-rr9h-w522-cvmrExploit, Vendor Advisory
- https://securitylab.github.com/advisories/GHSL-2023-028_jellyfin/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.