FortiWAN - Improper cryptographic operations in Dynamic Tunnel Protocol

Summary

A use of a broken or risky cryptographic algorithm vulnerability [CWE-327] in the Dynamic Tunnel Protocol of FortiWAN may allow an unauthenticated remote attacker to decrypt and forge protocol communication messages.

Affected Products

FortiWAN 4.5.8 and earlier.

Solutions

Upgrade to FortiWAN 4.5.9.

Acknowledgement

Internally discovered and reported by Giuseppe Cocomazzi of Fortinet Product Security