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Allow for least privileged cluster reader role and PSS restricted pods #145

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Allow for least privileged cluster reader role and PSS restricted pods #145

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0440a10
Update service-account-cluster-reader.yaml
synack-security Jul 6, 2023
0434fb8
Update values.yaml
synack-security Jul 6, 2023
e393989
Update values.yaml
synack-security Jul 6, 2023
6dbd6fe
Merge pull request #1 from synack-security/synack-security-patch-1
synack-security Jul 6, 2023
f860bd8
Merge pull request #2 from synack-security/patch-1
synack-security Jul 6, 2023
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70 changes: 70 additions & 0 deletions wiz-kubernetes-connector/templates/service-account-cluster-reader.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -36,9 +36,79 @@ metadata:
labels:
{{- include "wiz-kubernetes-connector.labels" . | nindent 4 }}
rules:
{{- if .Values.clusterReader.installLeastPrivileged }}
## Install least privileged (no secrets access) reader permissions
- apiGroups: ["*"]
resources: [
"customresourcedefinitions",
"nodes",
"pods",
"services",
"ingresses",
"endpoints",
"roles",
"rolebindings",
"clusterroles",
"clusterrolebindings",
"ingressclasses",
"replicasets",
"daemonsets",
"statefulsets",
"deployments",
"serviceaccounts",
"namespaces",
"configmaps",
"jobs",
"cronjobs",
"networkpolicies",
"controllerrevisions",
"podsecuritypolicies",
"persistentvolumes",
"persistentvolumeclaims",
"storageclasses",
"dtabs",
"tokenreviews",
"events",
"endpointslices",
"iamusergroups",
"iamidentitymappings",
"iamidentitymappings/status",
"subjectaccessreviews",
"poddisruptionbudgets",
"validatingwebhookconfigurations",
"mutatingwebhookconfigurations",
"volumesnapshots",
"csinodes",
"csidrivers",
"volumeattachments",
"csistoragecapacities",
"volumesnapshotcontents",
"volumesnapshotclassnames",
"leases"
]
verbs: ["get","list","watch"]
- apiGroups: [
"networking.istio.io",
"authentication.istio.io",
"rbac.istio.io",
"config.istio.io",
"security.istio.io",
"linkerd.io",
"policy.linkerd.io",
"crd.projectcalico.org",
"apiregistration.k8s.io",
"cluster.k8s.io",
"k8s.nginx.org",
"cis.f5.com"
]
resources: ["*"]
verbs: ["get", "list", "watch"]
{{- else -}}
## Else install broad readonly access
- apiGroups: ["*"]
resources: ["*"]
verbs: ["get", "list", "watch"]
{{- end }}
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
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12 changes: 12 additions & 0 deletions wiz-kubernetes-connector/values.yaml
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Expand Up @@ -15,6 +15,7 @@ image:

clusterReader:
installRbac: true
installLeastPrivileged: true # No access to read secrets
serviceAccount:
create: true
# Annotations to add to the service account
Expand Down Expand Up @@ -104,14 +105,25 @@ broker:

podAnnotations: {}

# Pod - Adhere to PSS restricted
podSecurityContext:
runAsNonRoot: true
runAsUser: 1000
seccompProfile:
type: RuntimeDefault

# Container - Adhere to PSS restricted
securityContext:
runAsNonRoot: true
runAsUser: 1000
allowPrivilegeEscalation: false
privileged: false
readOnlyRootFilesystem: true
capabilities:
drop:
- all
seccompProfile:
type: RuntimeDefault

resources:
# We usually recommend not to specify default resources and to leave this as a conscious
Expand Down