RCE in Jellyfin
CVE-2023-48702
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (66.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 66.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Jellyfin — versions < 10.8.13
Weakness classification (CWE)
References
- securitylab.github.com/advisories/GHSL-2023-028_jellyfin/ (Exploit, Third Party Advisory)
- github.com/jellyfin/jellyfin/security/advisories/GHSA-rr9h-w522-cvmr (Exploit, Vendor Advisory)
- github.com/jellyfin/jellyfin/commit/83d2c69516471e2db72d9273c6a04247d0f37c86 (Patch)
Frequently asked questions
- What is CVE-2023-48702?
- CVE-2023-48702 is a high-severity vulnerability in Jellyfin, classified under Command Injection. CVSS score: 7.2/10. Published 2023-12-13.
- How severe is CVE-2023-48702?
- High severity. CVSS v3 base score is 7.2 out of 10.