There are a number of different was to test the security of web applications, such as:
This article focuses on SAST.
Static application security test
The static application security test (SAST) involves analyzing the source code of the application to find vulnerabilities present in it. Since SAST scans the code before it is compiled, it is a form of white-box testing.
SAST has been in practice for more than a decade. It allows developers to find security vulnerabilities in the earlier stage of the software development life cycle (SDLC). Also, SAST ensures conformance to secure coding standards without actually running or compiling the actual code.
How SAST helps in SDLC
SAST is integrated into the very early stage of the software development life cycle (SDLC) since it does not require the code to be executed or compiled. This helps developers locate vulnerable code in the initial stages of SDLC.
Developers can then make any modification accordingly to fix the vulnerable code without breaking any builds.
Key steps for an effective SAST
The following steps should be performed