To have a better understanding of fuzzing and fuzzing techniques, let's have a look at different fuzzing terminology that will help us to grasp the fuzzing concepts and techniques that are used in this chapter:
- Fuzzer: A fuzzer is a program/tool that injects malformed/semi-malformed data into the server/web application and observes the behavior of the application to detect bugs. The malformed/semi-malformed data used by the fuzzer is generated using a generator.
- Generator: A generator uses a combination of fuzzing vectors and some random data. The generated data is then fed to the fuzzer, which injects this malformed data into the application.
- Fuzz vectors: A fuzz vector is a known-to-be-dangerous value that is used by the fuzzer. By observing the behavior of the application, the fuzzer can inject different fuzz vectors.
- Input seeds: These are valid input...