CVEs-PoC/2021/CVE-2021-29490.md

### [CVE-2021-29490](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29490)
![](https://img.shields.io/static/v1?label=Product&message=jellyfin&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-918%20Server-Side%20Request%20Forgery%20(SSRF)&color=brighgreen)

### Description

Jellyfin is a free software media system that provides media from a dedicated server to end-user devices via multiple apps. Verions prior to 10.7.3 vulnerable to unauthenticated Server-Side Request Forgery (SSRF) attacks via the imageUrl parameter. This issue potentially exposes both internal and external HTTP servers or other resources available via HTTP `GET` that are visible from the Jellyfin server. The vulnerability is patched in version 10.7.3. As a workaround, disable external access to the API endpoints `/Items/*/RemoteImages/Download`, `/Items/RemoteSearch/Image` and `/Images/Remote` via reverse proxy, or limit to known-friendly IPs.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/0day404/vulnerability-poc
- https://github.com/20142995/Goby
- https://github.com/ARPSyndicate/cvemon
- https://github.com/ARPSyndicate/kenzer-templates
- https://github.com/ArrestX/--POC
- https://github.com/HimmelAward/Goby_POC
- https://github.com/KayCHENvip/vulnerability-poc
- https://github.com/Miraitowa70/POC-Notes
- https://github.com/Threekiii/Awesome-POC
- https://github.com/Z0fhack/Goby_POC
- https://github.com/bigblackhat/oFx
- https://github.com/d4n-sec/d4n-sec.github.io
- https://github.com/openx-org/BLEN