CVE-2025-34256
Gravedad CVSS v4.0:
CRÍTICA
Tipo:
CWE-321
Uso de claves de cifrado embebidas en el software
Fecha de publicación:
05/12/2025
Última modificación:
05/12/2025
Descripción
*** Pendiente de traducción *** Advantech WISE-DeviceOn Server versions prior to 5.4 contain a hard-coded cryptographic key vulnerability. The product uses a static HS512 HMAC secret for signing EIRMMToken JWTs across all installations. The server accepts forged JWTs that need only contain a valid email claim, allowing a remote unauthenticated attacker to generate arbitrary tokens and impersonate any DeviceOn account, including the root super admin. Successful exploitation permits full administrative control of the DeviceOn instance and can be leveraged to execute code on managed agents through DeviceOn’s remote management features.
Impacto
Puntuación base 4.0
10.00
Gravedad 4.0
CRÍTICA
Referencias a soluciones, herramientas e información
- https://advcloudfiles.advantech.com/cms/2ca1b071-fd78-4d7f-8a2a-7b4537a95d19/Security%20Advisory%20PDF%20File/SECURITY-ADVISORY----DeviceOn.pdf
- https://docs.deviceon.advantech.com/docs/resource/
- https://www.vulncheck.com/advisories/advantech-wise-deviceon-server-hardcoded-jwt-key-authentication-bypass



