Xygeni Security Glossary

Software Development & Delivery Security Glossary

What is Dast?

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Curious about What is DAST, or Dynamic Application Security Testing, is a type of security testing that inspects applications as they run, pinpointing vulnerabilities that only appear when an app is live. By simulating attacks in real-time, DAST reveals risks like SQL injection, cross-site scripting (XSS), and broken authentication. Unlike other security testing methods, Dynamic Application Security Testing zeroes in on runtime issues, catching threats that static analysis might miss. This makes DAST essential for any well-rounded application security strategy.

Definition:

What is DAST? #

DAST, or Dynamic Application Security Testing, is a security testing method that analyzes applications in real time to identify vulnerabilities that appear during actual runtime. By simulating real-world attacks, DAST uncovers security issues such as SQL injection, cross-site scripting (XSS), and authentication flaws. Unlike Static Application Security Testing (SAST), which reviews source code, DAST examines an application’s behavior while it’s running, making it essential for detecting runtime risks that can only be observed in a live environment.

Why Knowing What DAST Stands For Matters

Understanding what is DAST highlights its unique value in security testing. DAST tools evaluate how applications respond to real-time threats, catching vulnerabilities that stay hidden until runtime. It’s a powerful tool for finding runtime risks, but it’s designed to work with other testing methods like Static Application Security Testing (SAST) and Software Composition Analysis (SCA). Together, these methods cover all aspects of application security—from code and libraries to behaviors under attack.

DAST vs. SAST vs SCA: Finding the Right Mix for Security

  • SAST: Static Application Security Testing inspects source code or binaries before runtime, catching potential issues early in the development cycle.
  • SCA: SCA tools review open-source libraries for known vulnerabilities, ensuring software dependencies remain secure and compliant.
  • DAST: Dynamic Application Security Testing tests for runtime vulnerabilities. For teams without DAST, using SAST and SCA in CI/CD pipelines still offers strong, proactive security, safeguarding applications from development through deployment.

For a closer look at SCA versus SAST, check out our SCA vs. SAST: Key Differences in Application Security.

The Real-World Challenges of Dynamic Application Security Testing

Dynamic Application Security Testing brings unique benefits but has challenges. Setting up DAST for applications with complex authentication or dynamic content requires close attention. Teams may need to review some findings to confirm they’re real risks. Additionally, DAST tests in runtime, requiring dedicated resources. Most teams address these challenges by combining DAST with SAST and SCA, creating a complete security approach.

How Xygeni Brings SAST and SCA to Your Security Strategy

Xygeni’s Application Security Posture Management (ASPM) platform makes security easier by combining SAST and SCA, putting all vulnerability data into one clear view. While we focus on SAST and SCA, we recognize the value of DAST in the security landscape. Our platform brings findings together, ranks vulnerabilities, and provides actionable insights, helping your team catch risks early. For organizations without Dynamic Application Security Testing, Xygeni’s ASPM enables proactive security by embedding SAST and SCA in CI/CD workflows, securing applications from code to cloud.

With Xygeni, your team can tackle vulnerabilities with a targeted, proactive approach. From securing source code to managing dependencies, our platform helps you catch vulnerabilities before they reach production.

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Frequently Asked Questions (FAQs) #

What is DAST scanning?
DAST scanning, or Dynamic Application Security Testing scanning, is the process of analyzing a live application to detect security vulnerabilities. It simulates attacks on the application during runtime, observing how the application responds and identifying flaws that could be exploited, like cross-site scripting (XSS), SQL injection, and improper authentication handling.

What is Dynamic Application Security Testing?
Dynamic Application Security Testing (DAST) is a black-box testing approach that assesses application security by simulating attacks in real-time. Unlike static testing, which examines source code, DAST observes how an application behaves during runtime. It focuses on identifying vulnerabilities that only appear when the application is live, making it an essential part of a comprehensive security strategy.

How to perform Dynamic Application Security Testing?
Performing Dynamic Application Security Testing involves setting up a DAST tool to run tests on the application in its live environment. Typically, this means configuring the tool to interact with the application’s public interfaces, such as HTTP or API endpoints. The DAST tool then sends various inputs to test for potential vulnerabilities, analyzing the application’s responses to pinpoint security gaps.

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