What is fuzz testing (fuzzing)?

by | Feb 16, 2021 | CompTIA, Exclusive Articles, Featured, Information Security, Most Common Vulnerabilities, Threats and Vulnerabilities Management

Fuzz Testing

What is fuzz testing (fuzzing)?

Fuzz testing or fuzzing is an automated software testing technique using which a tester provides malformed or semi-malformed inputs to a program automatically. The outputs of the program are then monitored for unexpected behaviors. Fuzz testing is very useful as it can reveal many unexpected behaviors of a program, like memory leaks, crashes, failure in assertions, etc.


In this article, we will discuss:

  • What is fuzz testing (fuzzing)?

  • An Example of Fuzz Testing

  • How is a fuzzer implemented?

  • Why do we perform fuzz testing?

  • Why do attackers perform fuzz testing?

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Amrita Mitra

Author

Ms. Amrita Mitra is an author, who has authored the books “Cryptography And Public Key Infrastructure“, “Web Application Vulnerabilities And Prevention“, “A Guide To Cyber Security” and “Phishing: Detection, Analysis And Prevention“. She is also the founder of Asigosec Technologies, the company that owns The Security Buddy.

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