Learn how Application Security Testing (AST) tools in DevSecOps support secure development through static, dynamic, and runtime security testing. Bobcares provides DevSecOps Support to integrate and manage application security testing across your workflows.
Did you know that Application security testing (AST) focuses on identifying security weaknesses in application code to reduce exposure to threats?
Early AST relied on manual reviews. Modern applications depend on modular architectures and extensive third-party components, which makes automation necessary to address the scale and frequency of known vulnerabilities.
DevSecOps brings security into every stage of the software development lifecycle. AST tools support this approach by enabling continuous security checks during development, testing, and runtime. Each tool category addresses different risk areas, and meaningful coverage depends on using them together rather than in isolation.
An Overview
Core Application Security Testing Tools
Static Application Security Testing (SAST)
Static application security testing uses a white box testing approach to analyze application code without executing it. SAST tools examine source code, binaries, and bytecode to identify security weaknesses early in development.
Common findings include syntax issues, mathematical errors, input validation problems, and insecure references. Early placement in development workflows helps teams address issues before code moves further through delivery pipelines.
Dynamic Application Security Testing (DAST)
Dynamic application security testing evaluates applications while they are running. This black box approach identifies vulnerabilities by analyzing application behavior in response to simulated inputs and attacks.
DAST commonly detects issues related to request and response handling, scripts, memory leaks, cookie and session management, authentication logic, third-party component execution, data injection, and DOM injection.
Interactive Application Security Testing (IAST)
Interactive application security testing combines aspects of static and dynamic testing. IAST tools operate within the application during execution, providing visibility into both compiled code and runtime behavior.
This approach supports the identification of data flow issues, configuration problems, and affected code paths. Root cause insight simplifies remediation and makes IAST suitable for test environments and API testing.
Software Composition Analysis (SCA)
Software composition analysis identifies third-party commercial and open-source components used in applications. Modern software often relies on thousands of external dependencies, each of which can introduce potential security exposure.
SCA tools create an inventory of components and versions, often represented as a software bill of materials. This visibility helps teams identify vulnerable dependencies and determine appropriate remediation actions.
Mobile Application Security Testing (MAST)
Mobile application security testing combines static analysis, dynamic analysis, and forensic data inspection generated by mobile applications. MAST tools detect vulnerabilities addressed by other AST approaches while also focusing on mobile-specific risks.
Testing covers issues such as jailbreaking, unsafe wireless networks, and data leakage from mobile devices.
Secure DevSecOps with Bobcares
Runtime Application Self-Protection (RASP)
Runtime application self-protection tools monitor application traffic and user behavior during execution. RASP maintains insight into application code and known weaknesses while identifying active exploitation attempts.
Integration within applications enables real-time responses such as issuing alerts or terminating sessions. Runtime protection extends security coverage beyond pre-deployment testing.
Applying AST Tools in DevSecOps
Shifting Security Testing Left
DevSecOps emphasizes early security testing during development. AST tools help developers identify security concerns while writing code and allow testers to detect issues before applications reach production. Automation supports consistent testing across delivery pipelines.
Third-Party Code Security
Third-party components require the same level of scrutiny as internally developed code. External software should not be assumed secure. Regular scanning, patch application, vendor coordination, custom fixes, or component replacement may be required when serious issues are identified.
AST Automation in DevSecOps Pipelines
Manual security testing does not scale well across modern delivery pipelines. Automated AST tools support continuous assessment of source code, dependencies, and runtime behavior.
Integration into CI and CD workflows enables consistent security checks without slowing development. Automation reduces reliance on manual review while ensuring security testing remains part of everyday development activities.
Conclusion
Application security testing tools are essential to DevSecOps, as no single approach covers all security risks. Combining multiple AST techniques helps teams address vulnerabilities across development and runtime.
Bobcares supports this process by helping integrate AST tools into DevSecOps pipelines, manage automated security testing, and monitor applications in production. This enables consistent application security without disrupting delivery workflows.
