Security is increasingly important for DevOps due to the growing complexity of applications and the accelerated pace of development. As organizations adopt DevOps practices, they face new challenges in securing applications and infrastructure:
- Increased complexity and automated processes: With automation at the core of DevOps, processes and applications are more intricate. This can introduce vulnerabilities if not carefully managed and secured, as they often involve multiple systems and components that need to be protected.
- Reliance on code repositories: DevOps teams depend heavily on code repositories for version control and collaboration. However, these repositories can be targets for attackers seeking to inject malicious code or steal sensitive information, making it crucial to secure access and maintain good security practices.
- Larger attack surface: The DevOps pipeline consists of numerous tools and components, including source code management, build systems, testing frameworks and deployment tools. Each of these elements presents potential attack surfaces and needs to be secured to protect the overall application.
- High-velocity development: The rapid pace of development in a DevOps environment can sometimes lead to security being overlooked or deprioritized. As new features are pushed out quickly, there may be less time for thorough security reviews.
- Tooling limitations: While many DevOps tools come with built-in security features, these may not be sufficient to protect against all threats. Relying solely on these features could create a false sense of security, leaving organizations exposed to potential attacks.
What is DevSecOps?
DevSecOps enables teams to shift security left and integrate it continuously across the entire SDLC rather than as an afterthought. It is a cultural shift even for DevOps teams, as it requires all members to adopt a security mindset that ensures software is not only released fast and at the highest possible quality but also includes all security measures and checks from the design phase.
It typically involves adopting secure coding practices and implementing application security testing tools that help design, test, verify, release, and update secure software in a secure manner. It requires ensuring that not only the software itself is secure, but also the development environment and the entire supply chain is secure. As a result, DevSecOps rely on a high level of automation tools to reduce manual work to a minimum.
DevOps Guide to Security Acronyms
All DevOps pros need to become familiar with key security concepts. Here are a few concepts that will help you communicate better with security teams in your organization and one day become a DevSecOps geek yourself.
1. SBOM—Software Bill of Materials
A software bill of materials (SBOM) comprises all components and software dependencies in the application’s build and delivery. It provides visibility into all the different components and licensing included in a piece of software to help discover potential vulnerabilities and licensing risks.
2. DAST – Dynamic Application Security Testing
DAST involves analyzing applications or services while they are running to identify security vulnerabilities. This technique typically simulates attacks to learn how a malicious actor might exploit the user or application interface. Teams use DAST tools to detect complex vulnerabilities caused by specific functionality that a static analysis tool cannot find when analyzing the source code.
3. SCA – Software Composition Analysis
SCA tools identify security vulnerabilities in third-party components and dependencies. Teams can integrate SCA to run across the entire development pipeline to build an open source dependency tree for the application and map these components against a database of known vulnerabilities. The tool generates reports on vulnerable open source components found in the application that require fixes or patches.
4. SAST – Static Application Security Testing
SAST tools analyze the source code of applications, services, and microservices, trying to identify potential vulnerabilities caused due to insecure coding practices. Teams can integrate SAST tools into their continuous pipeline, setting them up to automatically search the source code for coding patterns and insecure objects or functions that can result in security vulnerabilities. SAST is commonly used to identify vulnerabilities during the coding phase or when pushing code to a testing environment.
5. IAST—Interactive Application Security Testing
IAST involves analyzing the source code for vulnerabilities while the application is running. The main advantage of IAST is that this method reports vulnerabilities in real-time and does not add additional time to the CI/CD pipeline. It works from within the application, distinguishing it from both SAST and DAST techniques that work externally. IAST does not scan the entire codebase. Instead, it checks only the aspect exercised during the functional test.
6. RASP—Runtime Application Self-Protection
RASP is a defensive technique built into the tested application to detect and respond to attacks as they occur. It is typically implemented using third-party tools embedded within the application to monitor incoming requests and the application’s behavior, such as packages, plug-ins or libraries. These components inspect requests and the application’s behavior to block and protect against threats.
7. OWASP—Open Web Application Security Project
OWASP is a nonprofit devoted to helping improve software security by offering free resources and tools. This organization consists of a large community of volunteers who help propose, build and manage projects and educational materials that support the wider software development and security community.
8. XDR—Extended Detection and Response
XDR solutions collect and correlate deep activity data and detections across various security layers, including endpoints, emails, servers, networks, and cloud workloads, performing automated analysis to help detect threats faster. Teams can use this information to take quicker action during investigations. The main advantage of XDR solutions is that they help break down the security silos that allow stealthy threats to evade detection.
9. XSS—Cross-Site Scripting
XSS is a security vulnerability. It plagues so many web applications that it has yet to be removed from the OWASP Top 10 web vulnerabilities list since it was first included in the 2003 version. XSS vulnerabilities enable threat actors to execute malicious script code in one or multiple users’ browsers. Actors often use XSS to gather sensitive information, such as user session details and personal data.
10. SQLi—SQL Injection
SQLi is a code injection technique that enables threat actors to attack applications. It typically occurs when applications require user input, such as usernames, but receive a malicious SQL statement instead. To launch this attack, actors must locate vulnerable user inputs in the web application, create input content and send it. If the database executes the malicious SQL command, the attacker gains access to the database.
11. CSRF—Cross-Site Request Forgery
CSRF is a common web application attack that exploits the trust between a user and an application to conduct various malicious actions. Threat actors use CSRF to hijack an authenticated session between a user’s browser and an application. Once actors have access to the session, they can use it to execute functionality on that application.
12. SAML—Security Assertion Markup Language
SAML is a standard used to securely share information about identities, authentication, and authorization between various systems. It is typically implemented with the Extensible Markup Language (XML) standard for data sharing and often provides an open framework to implement a federated identity system like single sign-on (SSO).
Conclusion
In today’s chaotic cyber landscape, DevOps teams cannot solely prioritize the fast release of high-quality software. To ensure their software, infrastructure and development environment are protected, DevOps teams must integrate security into the entire SDLC. This endeavor requires adopting a security mindset and utilizing tools that help create an efficient and secure pipeline.
The acronyms discussed in this article include essential security aspects DevOps teams should get familiar with, such as the OWASP organization that provides important guidance on building secure software, tools that help shift security left and common web vulnerabilities. However, teams should branch beyond these practices and tools to create a comprehensive security policy that covers their unique needs and requirement.
