FortiDDoS - Use of hardcoded key for the JWT token


A use of hard-coded cryptographic key vulnerability [CWE-321] in FortiDDoS API may allow an attacker who managed to retrieve the key from one device to sign JWT tokens for any device.

Affected Products

FortiDDoS version 5.5.0 through 5.5.1
FortiDDoS version 5.4.0 through 5.4.2
FortiDDoS version 5.3.0 through 5.3.1
FortiDDoS version 5.2.0
FortiDDoS version 5.1.0


Please upgrade to upcoming FortoDDoS 5.6.0 or above.


Fortinet is pleased to thank Victor Pasman for bringing this issue to our attention under responsible disclosure.