find-my-way: DDoS with HTTP2
Remotely triggerable DoS in find-my-way when it is used with Node's HTTP/2 server.
The short version is that lookup() passes req.method into find(), and find() indexes this.trees[method]. Since this.trees is a normal object, HTTP/2 method values like constructor, toString, or __proto__ can resolve inherited object properties instead of returning undefined. The code then treats that value like a router node and crashes when it reaches currentNode.prefix.length.
Upgrade to v9.7.0.
Do not use find-my-way with HTTP/2 servers, or validate that the http method is valid beforehand.
Why this VPI (explainable, experimental)
VPI breakdown
| Impact | 75.00 |
| Exploitation signal(No additional exploitation signal) | ×1.00 |
| VPI | 75.00 |
VPI formula vpi-v1