The vulnerabilities within the software supply chain have become a major concern, reverberating throughout the tech industry in recent years. This is largely following high-stakes incidents like the SolarWinds cyberattack, which affected over 18,000 customers and catalyzed a reevaluation of accountability within software development. Such events expose not just the operational risk involved in software delivery but the systemic flaws in how we build and maintain code.
In the wake of SolarWinds, a notable shift occurred, exemplified by former President Biden's Executive Order on Improving the Nation’s Cybersecurity. This directive underscored the importance of securing supply chains and laid the onus on developers to ensure the delivery of secure software. While this order specifically targets U.S. government entities and applicable partners, it serves as a clarion call for all organizations to scrutinize their software suppliers — regardless of whether they develop applications for in-house use or are part of someone else’s supply chain.
Historically, software developers have been evaluated primarily on their coding speed and output efficiency, often relegating security considerations to an afterthought or a secondary responsibility. Although many are now seeking cybersecurity training, there remains a significant need for tools that help developers identify and rectify vulnerabilities effectively within their code. Dynamic Application Security Testing (DAST) and Static Application Security Testing (SAST) represent critical resources in this regard, providing essential support for developers aiming to enhance code security.
Understanding DAST and SAST Tools
Given the renewed focus on securing software supply chains, DAST and SAST tools are emerging as pivotal components of modern security practices. These tools equip developers to preemptively identify vulnerabilities, ideally before an application gets deployed. However, they each tackle the problem from distinct angles.
- SAST Tools: These tools analyze source code during development, allowing developers to integrate security checks early in the software development lifecycle. Typically incorporated into CI/CD pipelines, SAST tools can be configured to activate upon a developer's pull request. This proactive engagement helps ensure that new code changes do not inadvertently introduce vulnerabilities. Some SAST tools can even function within Integrated Development Environments (IDEs), warning developers as they code — akin to a spell check function in word processing software.
- DAST Tools: In contrast, DAST tools come into play after an application has been compiled. Their primary function isn’t to uncover coding vulnerabilities — ideally, that would have been addressed by SAST tools — but to simulate external attacks, probing for security gaps through accessible interfaces. Some DAST tools are specifically tailored to detect vulnerabilities relevant to particular industries, such as finance or retail, further enhancing their utility.
As organizations grapple with which security tools to use, opting for a combination of both SAST and DAST, or a tool that incorporates both methodologies, offers the best chance at fortifying their applications against potential threats. Indeed, companies that deploy this dual approach significantly strengthen the overall security posture of their software supply chains.
Leading DAST Tools
Today's marketplace hosts a variety of effective DAST and SAST tools. Here’s a look at some prominent players:
1. Acunetix DAST: An active DAST solution that employs Insightful Application Security Testing (IAST), Acunetix can detect over 7,000 vulnerabilities. Notably, its architecture allows scans to be initiated while programs run, thereby revealing deeper security issues compared to static inspections.
2. Opentext Fortify WebInspect: Now rebranded post-acquisition by Opentext, this tool offers robust scanning capabilities, compliance checks, and is suitable for CI/CD pipeline integration, allowing for ongoing vulnerability assessments.
3. Black Duck (Formerly Synopsis): This managed service option simplifies the process while providing expert assistance for complex security issues, covering common vulnerabilities and accommodating bespoke scenarios by offering a manual scan mode.
4. Tenable.io Web App Scanning: Known for its vulnerability management platform, Tenable's DAST tool focuses solely on web applications, executing thorough scans that include HTML5 and AJAX support, all while maintaining a user-friendly interface.
Top SAST Tools
Equally critical are SAST tools, which delve into source code for vulnerabilities before deployment:
1. Checkmarx SAST: This tool excels in user interface design and provides insights into vulnerabilities while offering developer-friendly guidance on risk mitigation.
2. Opentext Fortify Static Code Analyzer: Combining SAST and DAST elements, it categorizes vulnerabilities and guides users through educational resources tailored to improve security knowledge.
3. Perforce Klocwork SAST: Aimed at larger development environments, Klocwork emphasizes rapid scanning of extensive codebases, ensuring security checks happen without bogging down the development cycle.
4. Spectral SpectralOps-Plattform: Focused on identifying hardcoded credentials in development, SpectralOps continuously monitors the software lifecycle, leveraging AI to limit false positives.
5. Veracode Static Analysis SAST: A cloud-based service that detects vulnerabilities in real-time, Veracode prioritizes speed and integration with IDEs, ensuring developers remain security-conscious throughout the coding process.
Why It Matters
In an age where security breaches can have devastating consequences, understanding and integrating the right application security testing tools is imperative. The move towards SAST and DAST is not merely procedural; it's a necessary evolution toward securing the vulnerable links in the software supply chain. Developers equipped with effective tools are in a much stronger position to deliver secure, reliable software — an imperative for both business integrity and customer trust.
For organizations operating in the tech ecosystem, the pressing question isn’t “can we afford to integrate these tools?” but rather, “can we afford not to?” The costs associated with ignoring security in the software lifecycle have never been higher. Investing properly in these methodologies could spell the difference between resilience and risk in this crucial domain.
