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| Section | Weight | Objectives |
|---|---|---|
| Cluster Setup | 15% | - CIS benchmark compliance - Network security policies - Binary verification - Node metadata protection - Secure Ingress configuration |
| System Hardening | 10% | - Least privilege IAM - Network access control - Minimize OS attack surface - Kernel hardening (AppArmor, seccomp) |
| Minimize Microservice Vulnerabilities | 20% | - Security contexts - OPA/Gatekeeper implementation - Pod Security Standards - Isolation & multi-tenancy - Secret management |
| Supply Chain Security | 20% | - Image security & scanning - SBOM & CI/CD security - Signed artifacts & verification - Permitted registries - Static analysis tools |
| Monitoring, Logging and Runtime Security | 20% | - Behavioral analytics - Threat detection (Falco) - Incident investigation - Audit log configuration - Container immutability |
| Cluster Hardening | 15% | - Component updates & vulnerability mitigation - Service account security - API access restriction - RBAC configuration |
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NEW QUESTION # 65
SIMULATION
A container image scanner is set up on the cluster.
Given an incomplete configuration in the directory
/etc/kubernetes/confcontrol and a functional container image scanner with HTTPS endpoint https://test-server.local.8081/image_policy
1. Enable the admission plugin.
2. Validate the control configuration and change it to implicit deny.
Finally, test the configuration by deploying the pod having the image tag as latest.
Answer:
Explanation:
SeetheExplanationbelowExplanation:
ssh-add ~/.ssh/tempprivate
eval "$(ssh-agent -s)"
cd contrib/terraform/aws
vi terraform.tfvars
terraform init
terraform apply -var-file=credentials.tfvars
ansible-playbook -i ./inventory/hosts ./cluster.yml -e ansible_ssh_user=core -e bootstrap_os=coreos -b --become-user=root --flush-cache -e ansible_user=core
NEW QUESTION # 66
You have a development team that uses a private Docker registry to store container images. This registry is accessed by the team's CI/CD pipeline for building and deploying applications to Kubernetes. How would you secure the registry and ensure that only authorized users and services can access it? Explain the steps and provide example commands for each step.
Answer:
Explanation:
Solution (Step by Step) :
1. Enable TLS/SSL:
- Configure the Docker registry to use TLS/SSL encryption for all communication-
- Install a TLS certificate and configure the registry to use it.
- Update your CIICD pipeline to use HTTPS to communicate with the registry.
2. Access Control: - Implement access control mechanisms to restrict who can push and pull images to the registry. - Configure user authentication using Docker Hub, LDAP, or other supported methods. - Create user roles and grant permissions based on the users responsibilities.
3. Image Scanning: - Integrate image scanning tools to identify vulnerabilities in the container images stored in the registry. - Use tools like Clair, Anchoret or Trivy to scan images for known vulnerabilities and create alerts if any are found. - Implement policies to block the use of vulnerable images in your deployments.
4. Artifact Signatures: - Enable artifact signatures to ensure the integrity of the images stored in the registry. - Use tools like Notary or Cosign to sign images and verity their authenticity before deploying them.
5. Regular Auditing: - Implement regular audits to assess the security Of the registry and identity potential vulnerabilities. - Monitor access logs and activity logs to track user actions and identify any suspicious behavior
NEW QUESTION # 67
Your Kubernetes cluster hosts a sensitive application that uses secrets for storing critical data. You need to implement a robust security measure to ensure that these secrets are protected from unauthorized access.
Answer:
Explanation:
Solution (Step by Step):
1. Use Kubemetes Secret Manager Leverage Kubernetes' built-in secret management capabilities to store and manage sensitive data.
- Create a Secret:
2. Restrict Access to Secrets: use R8AC (Role-Based Access Control) to limit access to secrets to authorized users or applications. Create custom roles or cluster roles that allow specific access to secrets based on your security needs. - Create a YAML file for the Custom Role:
- Create a RoleBinding:
3. Mount Secret to Pods: Mount the secret to the pods that require access to the sensitive data. You can use volume mounts in your pod definitions. - Example Pod YAML:
4. Limit Access within Pods: use environment variables or other security mechanisms within your pods to limit access to the secrets to only the necessary code components.
NEW QUESTION # 68
You are running a Kubernetes cluster with a deployment named "my-app" that uses a container image from a public registry. You suspect that a recent deployment update may have introduced a vulnerability in one of the containers. Explain how you would use a container security posture management (CSPM) tool like Aqua Security to identify and address this potential security risk.
Answer:
Explanation:
Solution (Step by Step) :
1. Deploy Aqua Security:
- Install and configure Aqua Security on your Kubernetes cluster. Aqua Security is a comprehensive CSPM solution that offers a wide range of container security features, including vulnerability scanning, runtime security, and policy enforcement
2 Enable Continuous Image Scanning:
- Configure Aqua Security to continuously scan container images stored in your private registry for vulnerabilities. You can set up policies to block images With specific vulnerabilities or those that fail to meet your security requirements.
3. Implement Runtime Security:
- Enable Aqua Security's runtime security capabilities to monitor running containers for suspicious activity. This includes:
- File Integrity Monitoring (FIM): Detect unauthorized changes to files within containers.
- Network Security: Monitor network connections and identify unauthorized or suspicious traffic.
- Process Monitoring: Detect and block unexpected processes launched within containers.
4. Define Security Policies:
- Create custom security policies in Aqua Security to enforce specific security rules and controls for your Kubernetes cluster. These policies can
define:
- Vulnerability Limits: Allow only containers with specific vulnerability levels to run.
- Network Access Controls: Restrict network connections from containers.
- Resource IJsage Limits: Limit the resources (CPU, memory) that containers can consume-
5. Investigate Security Alerts:
- Aqua Security will generate alerts when it detects potential security risks- Investigate these alerts to understand the root cause of the issue and take corrective actions.
6. Remediate Security Issues:
- Use Aqua Security's remediation capabilities to address vulnerabilities and security issues. This could involve updating container images, patching vulnerabilities, or implementing additional security controls.
7. Monitor and Report:
- Regularly review the security reports and dashboards provided by Aqua Security to track your container security posture- Stay informed about any potential threats and proactively address them.
NEW QUESTION # 69
Before Making any changes build the Dockerfile with tag base:v1
Now Analyze and edit the given Dockerfile(based on ubuntu 16:04)
Fixing two instructions present in the file, Check from Security Aspect and Reduce Size point of view.
Dockerfile:
FROM ubuntu:latest
RUN apt-get update -y
RUN apt install nginx -y
COPY entrypoint.sh /
RUN useradd ubuntu
ENTRYPOINT ["/entrypoint.sh"]
USER ubuntu
entrypoint.sh
#!/bin/bash
echo "Hello from CKS"
After fixing the Dockerfile, build the docker-image with the tag base:v2
Answer: A
NEW QUESTION # 70
......
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