// For flags

CVE-2021-29490

Unauthenticated GET requests through Remote Image endpoints

Severity Score

5.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Jellyfin es un sistema multimedia de software libre que proporciona multimedia desde un servidor dedicado a los dispositivos del usuario final por medio de múltiples aplicaciones. Las versiones anteriores a 10.7.3 son vulnerables a ataques de tipo Server-Side Request Forgery (SSRF) no autenticado por medio del parámetro imageUrl. Este problema expone potencialmente a los servidores HTTP internos y externos u otros recursos disponibles por medio de HTTP "GET" que son visibles desde el servidor Jellyfin. La vulnerabilidad está parcheada en la versión 10.7.3. Como solución alternativa, deshabilite el acceso externo a los endpoints de la API "/Items/*/RemoteImages/Download", "/Items/RemoteSearch/Image" y "/Images/Remote" por medio de un proxy inverso, o limite de las direcciones IP amigables conocidas

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-03-30 CVE Reserved
  • 2021-05-05 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-12-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-918: Server-Side Request Forgery (SSRF)
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Jellyfin
Search vendor "Jellyfin"
Jellyfin
Search vendor "Jellyfin" for product "Jellyfin"
< 10.7.3
Search vendor "Jellyfin" for product "Jellyfin" and version " < 10.7.3"
-
Affected