Building a crawler is actually a lot more complicated than it sounds, given the dynamic and volatile nature of many modern web apps. Armed with this knowledge, it can then create a map. Burp Suite's scanner simulates this by "crawling" the web application you're looking at.Ī crawler is a type of bot that can automatically visit and log each page of a web application. And like a bank robber, the first thing a real cyber attacker will do is case the premises. How does dynamic security testing work? Automated DASTĪs we know, the concept behind DAST is that it mimics a real attack. It only requires that you don't have insider knowledge of the systems you're testing.
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So DAST is broad enough to include both automated and manual techniques. Large parts of it simply can't be automated. But manual penetration testing is also (generally) DAST - and requires the kind of lateral thinking only a human is capable of. The automated scanner at the heart of Burp Suite, for instance, is rooted in DAST. Is DAST an automated or manual methodology? Nowadays it can augment and improve its scans with other testing methods, but it's still a black box tool at heart. Its aim is to simulate a real attack.īurp Suite was born out of the DAST mindset.
This is called a "black box" testing method - because the tester can't see inside the metaphorical "box". DAST necessitates that the security tester has no knowledge of an application's internals.
A good analogy would be testing the security of a bank vault by attacking it. Dynamic application security testing (DAST) What is DAST security testing?ĭynamic application security testing (DAST) tests security from the outside of a web app.
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