Let's say that I'm connected to some random Wi-Fi network and from that point I want to check the version of currently installed firmware, but let's exclude possibility of logging in with default credentials.
This made me think if I can determine router firmware version, that means that I can check if specific firmware is either vulnerable or not to the latest discovered KRACK vulnerability.
WAC720/WAC730 Firmware Version 126.96.36.199, and changelog says:
Fixed security vulnerabilities in WPA2 handshake mechanism.
If it is possible, then how can be done that?