Static Application Security Testing (SAST) is a white-box security testing methodology that analyzes application source code, bytecode, or binary code without executing the program. It examines the code structure, data flow, and control flow to identify potential security vulnerabilities.
Key differences from other testing methods:
SAST vs DAST (Dynamic): SAST analyzes code at rest, while DAST tests running applications
SAST vs IAST (Interactive): SAST is performed during development, IAST during runtime with real-time monitoring
SAST vs Manual Code Review: SAST is automated and can scan large codebases quickly, while manual reviews are thorough but time-consuming
Example: SAST can detect SQL injection vulnerabilities by analyzing code patterns like:
String query = "SELECT * FROM users WHERE id = " + userId; // Vulnerable
Rewriting in plainer words…
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