I would like some tips on what I can study to be a better penetration tester. That is what I would like to work towards being, although I have trouble knowing where to start.
I have a decent knowledge of varying security technologies, exploits webapps and operating systems. I reviewed the CBT Nuggets instruction videos and materials for the Certified Ethical Hacker course and found it to be far too basic/elementary.
At the same time I have been trying to practice on WebGoat, yet it seems to advanced for me. When it comes to the injection or ajax attacks especially I am unable to solve the problems successfully, without resorting to checking the solution.
What courses can I take or books can I read to fill this gap, where I can understand and solve something like WebGoat with ease?