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[QA.ST.5] Evaluate runtime security with dynamic application security testing

PDFRSS

Category: FOUNDATIONAL

While other forms of security testing identifies potential vulnerabilities in code that hasn't been run, dynamic application security testing (DAST) detects vulnerabilities in a running application. DAST works by simulating real-world attacks to identify potential security flaws while the application is running, enabling uncovering vulnerabilities that may not be detectable through static testing. By proactively uncovering security weaknesses during runtime, DAST reduces the likelihood of vulnerabilities being exploited in production environments.

Begin by choosing a DAST tool that offers broad vulnerability coverage, including recognition of threats listed in the OWASP Top 10. When selecting a tool, verify that it can integrate seamlessly with your existing toolsets, authentication mechanisms, and protocols used by your systems. With DAST, false positive rates are generally lower than other forms of security testing since it actively exploits known vulnerabilities. Still, pay attention to false positive rates and the tool's ability to provide actionable insights. False positives can erode developer trust in security testing while detracting from genuine threats and consuming unnecessary resources.

Related information:

• Security in every stage of the CI/CD pipeline: DAST

• Building end-to-end AWS DevSecOps CI/CD pipeline with open source SCA, SAST and DAST tools