Guessable static JSON web token secret

Summary

PRODUCT OUT OF SUPPORT

An improper authentication vulnerability [CWE-287] in FortWAN may allow an authenticated attacker to escalate his privileges via HTTP or HTTPs requests with crafted JWT token values.

Affected Products

FortiWAN version 5.2.0 through 5.2.1
FortiWAN version 5.1.1 through 5.1.2

Solutions

This product is end of life and no longer supported. Please consider replacing with an equivalent FortiGate appliance as approriate.

Acknowledgement

Fortinet is pleased to thanks Idan Cohen from Cyberillium for bringing this issue to our attention under responsible disclosure.

Timeline

2023-11-13: Initial publication