KCSA Kubernetes Cluster Component Security Practice Question

You are auditing a multi-tenant Kubernetes cluster and notice that users can read ServiceAccount tokens belonging to other namespaces through improper RBAC configuration. Which ClusterRole permission should be strictly avoided or audited to prevent token theft via secret inspection?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Verbs like 'get', 'list', or 'watch' on resource 'secrets' across all namespaces.

Granting read access to Secrets across namespaces allows malicious actors to harvest ServiceAccount tokens.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
Verbs like 'get' on resource 'pods/status'.
Why it's wrong here
Reading pod status is generally safe and necessary for monitoring tools.
✗
Verbs like 'list' on resource 'namespaces'.
Why it's wrong here
Listing namespaces is a standard non-sensitive read operation.
✗
Verbs like 'create' on resource 'deployments'.
Why it's wrong here
Creating deployments relates to workload management, not secret harvesting.
✓
Verbs like 'get', 'list', or 'watch' on resource 'secrets' across all namespaces.
Why this is correct
Since Kubernetes ServiceAccount tokens are stored as Secrets, granting broad read permissions on secrets enables token theft.

Quick reference

Access Control Model Comparison

Model	Acronym	Who Controls Access?	Best For
Discretionary Access Control	DAC	Resource owner	Small teams, file shares
Mandatory Access Control	MAC	System / security labels	Classified govt / military
Role-Based Access Control	RBAC	Administrator (via roles)	Enterprise environments
Attribute-Based Access Control	ABAC	Policy engine (user + resource attributes)	Fine-grained, dynamic policies
Rule-Based Access Control	RuBAC	System rules / ACLs	Firewall rules, network ACLs

About these practice questions

This KCSA question is part of Courseiva's 320-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →

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Written and reviewed by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

Last reviewed August 2026 · checked against the official CNCF / Linux Foundation exam blueprint

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This KCSA practice question is part of Courseiva's free CNCF / Linux Foundation certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the KCSA exam.