mirror of
https://github.com/aquasecurity/kube-bench.git
synced 2024-12-30 10:28:09 +00:00
238 lines
9.1 KiB
YAML
238 lines
9.1 KiB
YAML
---
|
|
controls:
|
|
version: "eks-1.0"
|
|
id: 4
|
|
text: "Policies"
|
|
type: "policies"
|
|
groups:
|
|
- id: 4.1
|
|
text: "RBAC and Service Accounts"
|
|
checks:
|
|
- id: 4.1.1
|
|
text: "Ensure that the cluster-admin role is only used where required (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Identify all clusterrolebindings to the cluster-admin role. Check if they are used and
|
|
if they need this role or if they could use a role with fewer privileges.
|
|
Where possible, first bind users to a lower privileged role and then remove the
|
|
clusterrolebinding to the cluster-admin role :
|
|
kubectl delete clusterrolebinding [name]
|
|
scored: false
|
|
|
|
- id: 4.1.2
|
|
text: "Minimize access to secrets (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Where possible, remove get, list and watch access to secret objects in the cluster.
|
|
scored: false
|
|
|
|
- id: 4.1.3
|
|
text: "Minimize wildcard use in Roles and ClusterRoles (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Where possible replace any use of wildcards in clusterroles and roles with specific
|
|
objects or actions.
|
|
scored: false
|
|
|
|
- id: 4.1.4
|
|
text: "Minimize access to create pods (Not Scored)"
|
|
type: "manual"
|
|
Remediation: |
|
|
Where possible, remove create access to pod objects in the cluster.
|
|
scored: false
|
|
|
|
- id: 4.1.5
|
|
text: "Ensure that default service accounts are not actively used. (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Create explicit service accounts wherever a Kubernetes workload requires specific access
|
|
to the Kubernetes API server.
|
|
Modify the configuration of each default service account to include this value
|
|
automountServiceAccountToken: false
|
|
scored: false
|
|
|
|
- id: 4.1.6
|
|
text: "Ensure that Service Account Tokens are only mounted where necessary (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Modify the definition of pods and service accounts which do not need to mount service
|
|
account tokens to disable it.
|
|
scored: false
|
|
|
|
- id: 4.2
|
|
text: "Pod Security Policies"
|
|
checks:
|
|
- id: 4.2.1
|
|
text: "Minimize the admission of privileged containers (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Create a PSP as described in the Kubernetes documentation, ensuring that
|
|
the .spec.privileged field is omitted or set to false.
|
|
scored: false
|
|
|
|
- id: 4.2.2
|
|
text: "Minimize the admission of containers wishing to share the host process ID namespace (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Create a PSP as described in the Kubernetes documentation, ensuring that the
|
|
.spec.hostPID field is omitted or set to false.
|
|
scored: false
|
|
|
|
- id: 4.2.3
|
|
text: "Minimize the admission of containers wishing to share the host IPC namespace (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Create a PSP as described in the Kubernetes documentation, ensuring that the
|
|
.spec.hostIPC field is omitted or set to false.
|
|
scored: false
|
|
|
|
- id: 4.2.4
|
|
text: "Minimize the admission of containers wishing to share the host network namespace (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Create a PSP as described in the Kubernetes documentation, ensuring that the
|
|
.spec.hostNetwork field is omitted or set to false.
|
|
scored: false
|
|
|
|
- id: 4.2.5
|
|
text: "Minimize the admission of containers with allowPrivilegeEscalation (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Create a PSP as described in the Kubernetes documentation, ensuring that the
|
|
.spec.allowPrivilegeEscalation field is omitted or set to false.
|
|
scored: false
|
|
|
|
- id: 4.2.6
|
|
text: "Minimize the admission of root containers (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Create a PSP as described in the Kubernetes documentation, ensuring that the
|
|
.spec.runAsUser.rule is set to either MustRunAsNonRoot or MustRunAs with the range of
|
|
UIDs not including 0.
|
|
scored: false
|
|
|
|
- id: 4.2.7
|
|
text: "Minimize the admission of containers with the NET_RAW capability (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Create a PSP as described in the Kubernetes documentation, ensuring that the
|
|
.spec.requiredDropCapabilities is set to include either NET_RAW or ALL.
|
|
scored: false
|
|
|
|
- id: 4.2.8
|
|
text: "Minimize the admission of containers with added capabilities (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Ensure that allowedCapabilities is not present in PSPs for the cluster unless
|
|
it is set to an empty array.
|
|
scored: false
|
|
|
|
- id: 4.2.9
|
|
text: "Minimize the admission of containers with capabilities assigned (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Review the use of capabilities in applications running on your cluster. Where a namespace
|
|
contains applications which do not require any Linux capabities to operate consider adding
|
|
a PSP which forbids the admission of containers which do not drop all capabilities.
|
|
scored: false
|
|
|
|
- id: 4.3
|
|
text: "CNI Plugin"
|
|
checks:
|
|
- id: 4.3.1
|
|
text: "Ensure that the latest CNI version is used (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Review the documentation of AWS CNI plugin, and ensure latest CNI version is used.
|
|
scored: false
|
|
|
|
- id: 4.3.2
|
|
text: "Ensure that all Namespaces have Network Policies defined (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Follow the documentation and create NetworkPolicy objects as you need them.
|
|
scored: false
|
|
|
|
- id: 4.4
|
|
text: "Secrets Management"
|
|
checks:
|
|
- id: 4.4.1
|
|
text: "Prefer using secrets as files over secrets as environment variables (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
If possible, rewrite application code to read secrets from mounted secret files, rather than
|
|
from environment variables.
|
|
scored: false
|
|
|
|
- id: 4.4.2
|
|
text: "Consider external secret storage (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Refer to the secrets management options offered by your cloud provider or a third-party
|
|
secrets management solution.
|
|
scored: false
|
|
|
|
- id: 4.5
|
|
text: "Extensible Admission Control"
|
|
checks:
|
|
- id: 4.5.1
|
|
text: "Configure Image Provenance using ImagePolicyWebhook admission controller (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Follow the Kubernetes documentation and setup image provenance.
|
|
scored: false
|
|
|
|
- id: 4.6
|
|
text: "General Policies"
|
|
checks:
|
|
- id: 4.6.1
|
|
text: "Create administrative boundaries between resources using namespaces (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Follow the documentation and create namespaces for objects in your deployment as you need
|
|
them.
|
|
scored: false
|
|
|
|
- id: 4.6.2
|
|
text: "Ensure that the seccomp profile is set to docker/default in your pod definitions (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Seccomp is an alpha feature currently. By default, all alpha features are disabled. So, you
|
|
would need to enable alpha features in the apiserver by passing "--feature-
|
|
gates=AllAlpha=true" argument.
|
|
Edit the /etc/kubernetes/apiserver file on the master node and set the KUBE_API_ARGS
|
|
parameter to "--feature-gates=AllAlpha=true"
|
|
KUBE_API_ARGS="--feature-gates=AllAlpha=true"
|
|
Based on your system, restart the kube-apiserver service. For example:
|
|
systemctl restart kube-apiserver.service
|
|
Use annotations to enable the docker/default seccomp profile in your pod definitions. An
|
|
example is as below:
|
|
apiVersion: v1
|
|
kind: Pod
|
|
metadata:
|
|
name: trustworthy-pod
|
|
annotations:
|
|
seccomp.security.alpha.kubernetes.io/pod: docker/default
|
|
spec:
|
|
containers:
|
|
- name: trustworthy-container
|
|
image: sotrustworthy:latest
|
|
scored: false
|
|
|
|
- id: 4.6.3
|
|
text: "Apply Security Context to Your Pods and Containers (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Follow the Kubernetes documentation and apply security contexts to your pods. For a
|
|
suggested list of security contexts, you may refer to the CIS Security Benchmark for Docker
|
|
Containers.
|
|
scored: false
|
|
|
|
- id: 4.6.4
|
|
text: "The default namespace should not be used (Not Scored)"
|
|
type: "manual"
|
|
remediation: |
|
|
Ensure that namespaces are created to allow for appropriate segregation of Kubernetes
|
|
resources and that all new resources are created in a specific namespace.
|
|
scored: false
|