What’s more, SAST can be automated and transparently integrated into a project’s workflow. it also lets them find flaws early in the development process, which helps reduce the costs and ripple effects that result from addressing problems at the end of the process. They like that it allows them to scan a project at the code level, which makes it easier for individual team members to make the changes recommended by the technology. However, to get the best results, abstract interpretation algorithms need to be tailored to codes using an application’s domain, which includes its architecture, how it uses certain numerical algorithms and the types of data structures it manipulates.ĭespite SAST’s imperfections, it remains a favorite among development teams. Some success in reducing or entirely eliminating false positives has been achieved with something called Abstract Interpretation. In addition, SAST solutions are notorious for the larger amount of false positives or, less likely, false negatives. SAST performs well when it comes to finding an error in a line of code, such as weak random number generation, but usually not very efficient in finding data flow flaws. SAST and DAST are often used in tandem because SAST isn’t going to find runtime errors and DAST isn’t going to flag coding errors, at least not down to the code line number. DAST can also cast a spotlight on runtime problems that can’t be identified by static analysis for example, authentication and server configuration issues, as well as flaws visible only when a known user logs in. It does that by employing fault injection techniques on an app, such as feeding malicious data to the software, to identify common security vulnerabilities, such as SQL injection and cross-site scripting (XSS). It also ensures conformance to coding guidelines and standards without actually executing the underlying code.ĭAST, or Dynamic Application Security Testing, can find security vulnerabilities and weaknesses in a running application, typically web apps. It allows developers to find security vulnerabilities in the application source code earlier in the software development life cycle. SAST, or Static Application Security Testing, has been around for more than a decade. To do that, a number of technologies are available to help developers catch security flaws before they’re baked into a final software release. Needless to say, squashing those bugs in the development phase of software could reduce the information security risks facing many organizations today. It’s estimated that 90 percent of security incidents result from attackers exploiting known software bugs. View the entire series SAST, DAST, IAST and RAST, What Does It Mean to Developers?
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