A cloud-native application is specifically created to operate seamlessly within a cloud environment, taking advantage of cloud infrastructure and services to achieve top-notch performance, adaptability, and reliability. They use microservices instead of monolithic structures, allowing independent development and deployment. Microservices are hosted in containers, providing a lightweight and portable runtime environment. Serverless computing, which enables code execution in response to events without managing underlying infrastructure, is another key element of cloud-native architecture. While this approach is embraced by 94% of all enterprises, it also opens a world of potential security risks which must be addressed. In this article, we will cover the current threat landscape and then investigate six most effective strategies for safeguarding cloud-native applications along with some real examples demonstrating their successful implementation by leading organizations.
Threat Landscape
The threat landscape for cloud-native applications is constantly evolving, with new types of attacks and vulnerabilities emerging all the time. Some common types of attacks on cloud-native applications include:
- Container breakout: This occurs when a malicious actor gains access to a container and can access other containers or the underlying host.
- API attacks: APIs are a common attack surface for cloud-native applications, as they are often publicly exposed and can be targeted by attackers.
- Serverless function attacks: Serverless functions can be vulnerable to injection attacks, where an attacker introduces malicious code into the function.
- Data breaches: Data breaches are a major concern for cloud-native applications, as they can result in the exposure of sensitive data.
Understanding cloud-native security, and implementing the best practices mentioned below for secure cloud-native applications is crucial to address these challenges.
Six Best Practices for Securing Cloud-Native Applications
- Embrace the Principle of Least Privilege: Limit user and application permissions to the minimum necessary for their tasks, reducing potential damage from security breaches or compromised accounts. This concept is especially augmented if you need to allow any access to your systems from a third party.
- Implement Role-Based Access Control (RBAC): Grant permissions based on roles within an organization, ensuring access only to required resources. All major banks, for instance, implement RBAC to improve their security posture. By assigning users specific roles and granting access based on those roles, the banks reduce unauthorized access attempts and better control access to sensitive data.
- Use Encryption and Key Management Best Practices: Protect sensitive information with data encryption at rest and in transit and manage encryption keys properly to prevent unauthorized access. By encrypting data at rest and in transit and implementing proper key management, organizations can significantly reduce the risk of data exposure in the event of a breach.
- Adopt a Zero Trust Architecture: Assume no user, device, or network is inherently trustworthy. Continuously validate and verify the identity and permissions of users and devices requesting access to resources. By enforcing strong identity and access management controls, and using network segmentation, organizations can minimize their attack surface and protected critical assets.
- Monitor and Update Your Infrastructure Continuously: Proactively detect vulnerabilities and apply patches to maintain a strong security posture. Many compromises could have been prevented by continuously monitoring for vulnerabilities and applying patches in a timely manner.
- Practice Security by Design: Integrate security considerations throughout the Software Development Lifecycle (SDLC), including threat modeling, security controls implementation, and regular security testing. Security by design can reveal vulnerabilities at all stages of development and implementation. Another way to monitor your software implementations is with configuration management, which can reduce security gaps that can be unwittingly, or maliciously introduced into the system.
Conclusion
The path to safeguarding cloud-native apps rests in taking a proactive stance on security, incorporating it into the development cycle, and cultivating an environment of ongoing learning with collaborative efforts. This will enable organizations to stay ahead of emerging threats and safeguard their valuable data and resources.
Securing cloud-native applications demands a different set of security practices compared to traditional applications, and keeping on top of protection is an ongoing duty that demands continual alertness. The guidelines in this article can help to enhance the security of your cloud-native applications.
About the Author:
As a security engineering leader at Coinbase and a former senior manager, Dilip Ravindran has developed extensive experience and expertise in the technology industry, including cloud security, hyperscale cloud computing, engineering leadership, and blockchain technologies.
Dilip has a Masters degree in Software Engineering from Carnegie Mellon University and about 15 years of Software engineering experience. In his current role as the head of the cloud security efforts at Coinbase, he is responsible for developing and implementing the infrastructure security strategy, policies, and procedures to make it the most secure crypto platform in the world. He also manages a team of security engineers, conducts regular security audits to identify vulnerabilities and potential threats, and oversee the implementation of security technologies such as firewalls, intrusion detection and prevention systems, and SIEM.
Dilip is passionate about staying current with the latest advancements in cloud technology and enjoy sharing my knowledge with others.
Editor’s Note: The opinions expressed in this guest author article are solely those of the contributor, and do not necessarily reflect those of Tripwire.
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