I know that by just looking at the title of this article it can be hard to take it seriously.
The word ‘fuzzing’ does not exactly make you think of hardcore network security but that is just what it is.
For years, the security industry has tried to improve fuzzing technology because it has proved to be an effective way of stopping security holes before you ship out a company’s software to the public.
Fuzzing techniques have also been used to secure networks in a most effective manner.
In this article I will show you how to use Fuzzing techniques to make sure that your software and computer network is safe.
What Exactly Is Fuzzing?
Before I go any further I should really sit down and explain what fuzzing is exactly.
So far you know that it is a security technique but you do not know how it works.
Fuzzing, to put it plainly, is when you input a lot of random data inside of a system to see if it fails or not.
The random data is supposed to represent the data that the users of the software would input inside of it if they were using it at that moment.
You can never foresee the data that the random person is going to try and input into your software so you can use fuzzing to try to duplicate this as much as possible.
The technique was first used to test out operating system security but has now moved over to protect networks and user applications as well.
What kind Of Bugs Are You Looking For?
The fuzzing testing that you would do depends on what kind of data and errors that you are looking for.
For example, a fuzzing testing technique would differ if you were looking for the results of a normal user using your software and an attacker using it.
With a normal user, you are trying to search for crashes and invalid data output.
Invalid data output means that the user would get a totally different result than they were expecting.
If you are looking for security holes, then you would be on the lookout for exploits that the random data crash could cause.
The crashes would cause holes in the software.
These holes could cause a segfault result or anything of that nature.
A lot of attackers find vulnerabilities when they run into a segfault errors.
The same thing goes with the network.
The only difference would be that most of the testing would revolve around security issues.
It is a little bit easier to filter out the data that can be returned to someone on the web so user testing is not as vital.
Fuzzing as a technique has been around for over a decade and it will most likely be around for even longer.
It is an effective technique of testing and should be adopted into the testing of your software both online and off.