DAST (Dynamic Application Security Testing) is a black-box security testing method that scans running web applications and APIs by simulating real-world attacks to identify vulnerabilities like SQL injection, XSS, and authentication flaws. Unlike static analysis, DAST tests applications from the outside without source code access, catching runtime issues that emerge only during execution.
Runtime vulnerabilities often evade static scans and only surface under live conditions with real data flows. DAST shifts security left into CI/CD pipelines, reducing breach risk in web apps and APIs while meeting compliance needs. It’s essential for DevSecOps as organizations deploy frequently to cloud-native and microservices architectures.
DAST scanners interact with running apps via HTTP/HTTPS, authenticate where needed, and systematically test inputs against known attack patterns. They validate responses for leaks, redirects, or errors, then report findings with proof-of-concept exploits. Integration into pipelines enables automated scans during staging before production promotion.
BuildPiper integrates DAST scanning into secure CI/CD pipelines alongside SAST, SCA, and container checks, ensuring comprehensive AppSec coverage. Teams can automate DAST during staging gates, block vulnerable deployments, and maintain audit trails for compliance while shipping microservices and Kubernetes workloads faster.
DAST tests running applications “outside-in” like an attacker, finding runtime issues without code access. SAST analyzes source code “inside-out” statically, catching coding errors early but missing dynamic behaviors. Together they provide full coverage—SAST for development, DAST for staging/production.
DAST fits best in staging or pre-production CI/CD stages after functional tests, validating runtime security before promotion. It catches issues from integrations, configs, or data flows that static scans miss, enabling shift-left security without slowing early development.
BuildPiper embeds DAST tools into gated pipelines, running automated scans on deployed staging environments. Failed scans block promotion while passing results feed audit logs and dashboards, ensuring secure microservices reach production with full OWASP coverage and compliance evidence.