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CKS · Question #58

PART B -- FIX ONE prominent security/best-practice issue in the Deployment manifest. 4) Open the manifest vi /home/candidate/subtle-bee/deployment.yaml 5) Change ONLY ONE existing field that is a clea

To fix a prominent security/best-practice issue in the Deployment manifest located at /home/candidate/subtle-bee/deployment.yaml, identify and change one of the following existing fields to a more secure value: Option 1: runAsUser Search for /runAsUser. If you find runAsUser: 0,

Submitted by certguy· May 5, 2026Minimize Microservice Vulnerabilities

Question

PART B -- FIX ONE prominent security/best-practice issue in the Deployment manifest. 4) Open the manifest vi /home/candidate/subtle-bee/deployment.yaml 5) Change ONLY ONE existing field that is a clear security issue.

Explanation

To fix a prominent security/best-practice issue in the Deployment manifest located at /home/candidate/subtle-bee/deployment.yaml, identify and change one of the following existing fields to a more secure value:

  • Option 1: runAsUser
    • Search for /runAsUser.
    • If you find runAsUser: 0, change it to runAsUser: 65535.
  • Option 2: privileged container
    • Search for /privileged.
    • If you find privileged: true, change it to privileged: false.
  • Option 3: allow privilege escalation
    • Search for /allowPrivilegeEscalation.
    • If you find allowPrivilegeEscalation: true, change it to allowPrivilegeEscalation: false.
  • Option 4: writable root filesystem
    • Search for /readOnlyRootFileSystem.
    • If you find readOnlyRootFileSystem: false, change it to readOnlyRootFileSystem: true.
  • Option 5: image uses :latest
    • Search for /image.
    • If you find image: something:latest, change it to a pinned tag, e.g., image: something:1.2.3.

After changing: Save and exit the manifest using :wq. These are single-field changes that address common security concerns.

Topics

#Pod Security Context#Least Privilege#Deployment Manifest#Container Hardening

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