I have added a few lines of experimental code to Firmwalker for use with the Shodan CLI.
In this scenario, Firmwalker will identify a *.crt file, identify the serial number of that certificate and run that serial number through the Shodan CLI.
This will identify the number of devices in the Shodan database that are running the same certificate serial number.
Number of devices found in Shodan = 80699
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Contact: @craigz28 on twitter or via email at [email protected]