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Squash Threats and Master the Tenets of Kubernetes Deployment Security

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Squash Threats and Master the Tenets of Kubernetes Deployment Security

Squash security threats and master the tenets of Kubernetes deployment.

· Security Zone ·
Free Resource

Kubernetes is an open-source container orchestration that impacts the functions of runtime security. A successful Kubernetes deployment lies in choosing a suitable environment based on application requirements, investments, and infrastructure. Users face technical challenges subjected to Kubernetes deployment on cloud (single, multi, or hybrid) or on-premises that require different tools. These factors affect the approach to security with Kubernetes. Let’s see the threat model and how to overcome them.

The threats attacking the Kubernetes environment — regardless of the deployment methods — are as follows:

  • Attack on Kubernetes control: The external attackers gain access to all the connected systems that are externally accessible, which compromise controls and affects security. You can overcome this by enforcing proper and legitimate authentication and configuring the apt network policies for external services.                               
  • Threat on containers: A hostile container or node present within the Kubernetes environment acts as a threat, creating a terrible impact on the rest of the clusters or nodes. If you compromise on containers, the ultimate concern is about the escalation of the privilege or clusters. If the privileged container is misused, it will create more difficulty than any normal container.
  • Credential threat: The credentials of the administrator are compromised, creating a way for hackers to easily attack the systems. When you compromise on the credentials of legitimate users, it leads to accommodating malicious users in the system. To eradicate this challenge, you need to regulate and restrict access to the cluster resource. You can implement least privilege access and control based on role and monitor all user actions.
  • Misusing legitimate privileges: When a system is misconfigured, it could lead to the misuse of privileges. An error in the network policy leads to providing access to unauthorized users. Hardening of system components like pods, containers, etc. acts as a defense mechanism against this misuse of privileges and reduces them significantly. Yet, another defense mechanism is the authorization control where Kubernetes — with a plugin architecture — includes designing of authorization logic and implementing it.

All of these threats may result in a multitude of undesirable scenarios and can be dwindled and eliminated by a few efficient tenets in Kubernetes security. The security is looked from the perspective of containers, deployments, and networks, and the following principles ensure secured deployment and threat prevention:

  • Authorization and authentication: This is one of the core principles of Kubernetes security. The Kubernetes API is the interface hub of users, administrators, and operations teams in its environment. Since more than one team accesses the Kubernetes API for operations, it is most likely to be prone to threats, which are controlled by the built-in authentication and authorization regulation in the Kubernetes platform.
  • Isolated resource: The policy of isolation is another security lever, which not only avoids service denial attacks but also ensures data privacy and protection. This isolation mechanism is used in various resources like pods and namespaces inclusive of memory and storage.
  • Network security and hardening: Network security manages segmentation including transport layer security access and service network access.
  • Logging and auditing: Audit logging records all API actions including archived and records used for future analysis purposes. An administrator is assigned to log events through audit-policy.
  • As technology grows, security standard has to be upgraded simultaneously for consistent security assurance. With the tenets discussed in this blog, you shall be able to overcome the threats in Kubernetes deployment security and enhance the protection of data and privacy. Besides these, there are several ways in which Kubernetes security is established in its platform by following the right method.

    Topics:
    kubernetes cluster ,kubernetes monitoring ,kubernetes security ,devops ,devops security ,kubernets ,kubernetes networking ,security ,deployment

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