15 DevOps Security Best Practices Guide

Dear reader,

In today‘s world of digital innovation, you and your team are under immense pressure to deliver software faster than ever before. The competitive need for speed has led organizations like yours to adopt modern DevOps practices that optimize and accelerate your software release lifecycle.

However, in this rush to release new features and updates, security is often treated as an afterthought. This leaves your applications and infrastructure exposed to cyber threats. According to the 2022 Verizon Data Breach Investigations Report, around 82% of breaches involved the application layer, highlighting the need to embed security within your DevOps workflows.

The key is to integrate security across your entire DevOps pipeline. This guide covers 15 proven security practices and principles you can implement in your DevOps environment. Let‘s get started!

The Rising Threat of Breaches

First, it‘s important to recognize the scale of the cyber threat facing your organization today. A few alarming statistics that underscore why security deserves more attention:

• 58% of companies globally suffered a data breach last year as per research from IBM and the Ponemon Institute.

• The average cost of a data breach now exceeds $4.24 million according to IBM‘s report.

• Over 247 billion records have been exposed via breaches since 2013 based on Privacy Rights Clearinghouse data.

• By 2025, cybercrime is projected to cost the world $10.5 trillion annually, up from $3 trillion in 2015 according to Cybersecurity Ventures.

You simply cannot afford to ignore security in the race to release new code. These statistics stress why integrating security into your DevOps practice is mission-critical.

The DevSecOps Approach

DevSecOps bakes security into your DevOps practice by bringing security expertise and testing directly into the end-to-end workflow. The goal is to shift security "left" by addressing it early in the software lifecycle versus just at final stages.

Integrating security across the DevOps toolchain – Image source: XebiaLabs

Here are the key principles to implement DevSecOps within your teams:

• Integrate security roles, tools, tests, and checks into your cross-functional DevOps teams. Make security a shared responsibility.

• Automate security workflows via code – such as testing, compliance checks, and remediation – to embed it within your CI/CD pipelines.

• Ensure collaboration across developers, ops, and security teams to quickly find and resolve issues.

• Eliminate silos between teams by fostering a security-focused culture. Break down barriers between builders and defenders.

• Make security a natural part of your process via cultural norms, not an afterthought. Reinforce behavioral expectations.

Top DevSecOps Tools

Specialized tools help automate security within your software delivery pipelines. Here are some of the top DevSecOps tools to evaluate:

SAST Tools

• SonarQube: Leading open-source SAST tool that integrates into IDEs to check code on commit. Broad language support. Free and paid versions available.

• Checkmarx: Commercial SAST tool for detecting code vulnerabilities early in SDLC. Integrates API, IDE, and CI/CD scanning.

• Veracode: Long-standing SAST tool with deep analysis capabilities and integration with Jenkins, IDEs, and defect trackers.

DAST Tools

• OWASP ZAP: Popular open-source DAST tool for finding vulnerabilities in running apps via automated scans and penetration testing.

• Burp Suite: Robust commercial DAST tool from PortSwigger with advanced manual testing capabilities via its web interface.

• Netsparker: User-friendly commercial DAST tool with automatic verification of vulnerabilities found and CI/CD integration.

Infrastructure Security

• Chef InSpec: Audits infrastructure compliance to security standards like PCI and HIPAA. Integrates with Chef, Puppet, and SaltStack configurations.

• CloudCustodian: Open-source tool to enforce security policies and best practices within AWS through rules-based engine.

• Ansible: Agentless configuration management and automation tool used to secure servers and deployments. Integrates well with CI/CD pipelines.

Secrets Management

• Hashicorp Vault: Popular tool for managing access to secrets like keys, passwords, certs via short-lived leases, revocation, and audit trails.

• AWS Secrets Manager: Service to securely store, rotate, and retrieve secrets needed by apps and services on AWS. Integrates with other AWS tools.

• CyberArk Conjur: Enterprise secrets management solution with machine identity management and least privilege features.

Secure Development Practices

Integrating security into your development lifecycle is the most impactful way to reduce risk. Here are 8 key best practices for your developers and teams:

1. Perform Threat Modeling

Before writing any application code, conduct threat modeling workshops to identity risks like unauthorized access, data exposure, injection attacks, and other threats specific to your architecture and workflows. Define security requirements upfront as part of design – don‘t bolt them on at the end!

2. Integrate SAST Testing

SAST (Static Application Security Testing) tools scan application source code to catch security defects like SQL injection, XSS, insecure configs, hardcoded secrets, etc. Integrate SAST scans into your CI/CD pipeline to fail builds when new vulnerabilities are introduced. Remediate issues before merging pull requests.

3. Perform DAST Scans

DAST (Dynamic Application Security Testing) simulates attacks on your running application to detect vulnerabilities missed by static analysis – such as authentication weaknesses, insecure workflows, or access control issues. Execute DAST scans at various stages of your pipeline like against pre-production environments.

4. Adopt Small and Frequent Code Reviews

Do not review hundreds of lines of code changes in one go. Break code reviews into small, manageable sets of changes that can be properly analyzed and discussed by the team. Reviewers should specifically check for security issues introduced.

5. Establish Secure Coding Standards

Develop standardized libraries, frameworks, and guidelines for your developers to adhere to secure coding practices for input validation, output encoding, authentication, access controls, logging, encryption, and more.

6. Manage Secrets Securely

Use a secrets management solution like HashiCorp Vault to securely store and control access to passwords, API keys, certificates, and other secrets needed by your apps and scripts. Never hardcode credentials!

7. Follow the Principle of Least Privilege

Always grant the minimum permissions needed to get the job done – no more. For example, developers should not have admin access to production resources. Build privilege controls into your provisioning workflows.

8. Get Trained on Secure Coding

Educate all your team members continuously on writing secure code through formal training as well as informal mentoring. Keep developers updated on the OWASP Top 10 risks, new attack methods, tools, and modern security best practices.

Securing Infrastructure

The underlying infrastructure – like servers, networks, cloud environments – that hosts your applications also requires rigorous security:

9. Manage Infrastructure as Code

Define and provision infrastructure via code using version controlled definition files. This allows you to review changes to configurations, replicate environments, and validate security standards are met before deployment. Terraform and Ansible are great tools here.

10. Scan Configurations

Actively scan infrastructure definition files as well as live environments using SAST-like tools to catch misconfigurations and compliance gaps – like open ports, insecure ciphers, poor encryption standards etc. Chef InSpec and CloudCustodian are examples.

11. Segregate and Limit Environments

Maintain segregated networks, access controls, and resources for production versus lower environments like dev, QA, staging. Limit cross-environment access to prevent risks like production data in non-prod. Implement network segmentation via VLANs and zero trust models.

12. Continuously Monitor for Vulnerabilities

Scan virtual machines, containers, serverless functions and other environments continuously for vulnerabilities using both static and dynamic analysis tools. Identify and remediate/isolate affected resources swiftly.

13. Maintain Secure Configurations

Have a streamlined process for rapidly testing and rolling out configuration changes and security patches for operating systems, libraries, containers, etc. Critical patches can be applied on an emergency basis. Automate patch rollouts via Ansible, Jenkins, etc.

Access and Identity Management

With perimeter defenses weakened, identity and access management serves as your last line of defense:

14. Enforce Least Privilege Access

Map access permissions to roles and groups instead of individual users. Integrate role lifecycle management into onboarding/offboarding workflows. Grant temporary access just-in-time only when needed instead of standing privileges.

15. Implement Multifactor Authentication (MFA)

Require a second form of identity verification for all account logins via biometrics, security keys, or one-time codes. MFA prevents takeover of compromised credentials. Enforce MFA across all endpoints, apps, VPNs, and cloud services.

Other critical controls include single sign-on (SSO) for centralized access, session management, password management via a password vault, and identity governance to certify users.

Closing Recommendations

Here are my top 3 recommendations as you work to integrate security within your DevOps practice:

Start small. Don‘t overhaul your entire pipeline overnight. Introduce one new security tool or practice at a time. Focus on high risk areas first.

Engage developers. Get buy-in from dev teams by framing security as an enabler – finding bugs early speeds release velocity! Provide training and support.

Measure results. Define security metrics like time-to-remediation, vulnerability trends, compliance posture to gauge DevSecOps impact.

Feel free to reach out if you need any help in your security transformation! Wishing you safe and speedy deployments.

Regards,
[Your Name]