42 lines
1.6 KiB
YAML
42 lines
1.6 KiB
YAML
id: k8s-svc-acct-key
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info:
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name: Ensure service-account-key-file set
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author: princechaddha
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severity: medium
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description: Checks if the service-account-key-file argument is properly set in the API server configuration, which is critical for validating service account tokens.
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impact: |
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The absence of the service-account-key-file argument means that the API server might not perform robust authentication checks for service accounts, potentially allowing unauthorized access.
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remediation: |
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Configure the API server to use a service-account-key-file that points to a valid private key used to sign service account tokens. This setting should be part of the API server startup arguments or in its configuration file.
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reference:
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- https://kubernetes.io/docs/admin/kube-apiserver/
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tags: cloud,devops,kubernetes,security,devsecops,api-server,k8s,k8s-cluster-security
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variables:
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argument: "service-account-key-file"
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self-contained: true
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code:
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- engine:
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- sh
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- bash
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source: |
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kubectl get pods -n kube-system -l component=kube-apiserver -o jsonpath="{.items[*].spec.containers[*].command}"
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matchers-condition: and
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matchers:
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- type: word
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words:
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- 'kube-apiserver'
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- type: word
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words:
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- "service-account-key-file"
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negative: true
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extractors:
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- type: dsl
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dsl:
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- '"API server configuration is missing the " + argument + " argument."'
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# digest: 4b0a00483046022100d96b56a4ea64b5f2509a01b7093dca52fda894c1c0dce59b521436066e4c6822022100ebcfe47ebfa855f1b27e56810abb150c1476c49be4e6e2cf1c8323a4413d9947:922c64590222798bb761d5b6d8e72950 |