The problem with WAF is discussed in https://users.ece.cmu.edu/~adrian/731-sp04/readings/Ptacek-N....
One of the authors of the paper has said "WAFs are just speed bump to a determined attacker."
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One of the authors of the paper has said "WAFs are just speed bump to a determined attacker."
Doors are a speedbump for a car.
Well yeah, sure, doesn't mean I'm going to have an open doorframe or a door without a lock.
This isn't like having a lock on your door, this is like having a cheap, easily pickable padlock on your bank vault. If the vault has a proper lock then the padlock serves no purpose, and if it doesn't then you're screwed regardless.