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Scenario #227
Security
K8s v1.19, DigitalOcean
Lack of Security Updates in Container Images
The cluster was running outdated container images without the latest security patches, exposing it to known vulnerabilities.
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What Happened
The container images used in the cluster had not been updated with the latest security patches, making them vulnerable to known exploits.
Diagnosis Steps
- 1Analyzed the container images and found that they had not been updated in months.
- 2Checked for known vulnerabilities in the base image and discovered unpatched CVEs.
Root Cause
Container images were not regularly updated with the latest security patches.
Fix/Workaround
• Rebuilt the container images with updated base images and security patches.
• Implemented a policy for regularly updating container images to include the latest security fixes.Lessons Learned
Regular updates to container images are essential for maintaining security and reducing the risk of vulnerabilities.
How to Avoid
- 1Implement automated image scanning and patching as part of the CI/CD pipeline.
- 2Regularly review and update container images to ensure they include the latest security patches.