48 lines
1.7 KiB
YAML
48 lines
1.7 KiB
YAML
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id: k8s-netpol-namespace
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info:
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name: Network Policies specify namespace
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author: princechaddha
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severity: medium
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description: Checks for Kubernetes Network Policies that do not specify a namespace, which can lead to potential misconfigurations and security issues.
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impact: |
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Omitting the namespace in Network Policies can cause the policies to apply incorrectly, potentially exposing Kubernetes resources to unauthorized access. This poses a security risk by not isolating network traffic properly within the cluster.
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remediation: |
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Ensure that all Network Policies explicitly define a namespace to maintain proper network isolation and security boundaries.
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reference:
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- https://kubernetes.io/docs/concepts/services-networking/network-policies/
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tags: cloud,devops,kubernetes,security,devsecops,networking
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flow: |
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code(1);
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for (let policy of template.items) {
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set("policy", policy)
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javascript(1);
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}
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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: kubectl get netpol --all-namespaces --output=json
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extractors:
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- type: json
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name: items
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internal: true
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json:
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- '.items[] | {policy: .metadata.name, namespace: .metadata.namespace}'
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javascript:
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- code: |
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let policyData = JSON.parse(template.policy);
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if (!policyData.namespace) {
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let result = (`Network Policy '${policyData.policy}' does not specify a namespace.`);
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Export(result);
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}
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extractors:
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- type: dsl
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dsl:
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- response
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# digest: 490a00463044022005edb8b78c4db40572f8297946636ce446d578c62f1ec7bf7f1621ed021f27c9022078555811953b55f080c0dc21ec6138fbd712b5069ca571e2492c5e7cc3172759:366f2a24c8eb519f6968bd8801c08ebe
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