I've heard of SQL injection attacks to log into websites, but this new use on firewalls is unprecedented! This man is a hacking GENIUS. We have our next Kevin Mitnick right here...
Look we're all hackers here. We know SQL Injection isn't complicated for us, but it is complicated for the majority of the world. In fact, it's probably an impossible task for 95% of the world, and very very difficult for another 4% on top of that, and even the last 1% would have to experiment a bit to figure out which string to submit to get the information.