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96 lines
2.8 KiB
YAML
96 lines
2.8 KiB
YAML
id: eks-iam-managed-policy-networking
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info:
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name: Use AWS-managed policy to Manage Networking Resources
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author: princechaddha
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severity: high
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description: |
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Ensure that all Amazon EKS cluster node groups use the "AmazonEKS_CNI_Policy" managed policy to manage cloud networking resources effectively. This policy provides the necessary permissions to the Amazon VPC CNI Plugin for managing network interfaces.
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impact: |
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Without the AmazonEKS_CNI_Policy, the VPC CNI plugin cannot properly manage network interfaces, which will affect pod networking and communication within the EKS cluster.
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remediation: |
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Attach the AmazonEKS_CNI_Policy to the IAM role associated with your EKS node groups using either the AWS Console or AWS CLI.
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reference:
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- https://www.trendmicro.com/cloudoneconformity/knowledge-base/aws/EKS/eks-iam-managed-policy-networking.html
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- https://docs.aws.amazon.com/eks/latest/userguide/cni-iam-role.html
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tags: cloud,devops,aws,amazon,eks,aws-cloud-config
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variables:
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region: "us-east-1"
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flow: |
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code(1)
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for(let cluster of iterate(template.clusters)){
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set("cluster", cluster)
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code(2)
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for(let nodegroup of iterate(template.nodegroups)){
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set("nodegroup", nodegroup)
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code(3)
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code(4)
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}
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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: |
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aws eks list-clusters --region $region --query 'clusters' --output json
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extractors:
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- type: json
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name: clusters
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internal: true
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json:
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- '.[]'
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- engine:
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- sh
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- bash
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source: |
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aws eks list-nodegroups --region $region --cluster-name $cluster --query 'nodegroups' --output json
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extractors:
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- type: json
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name: nodegroups
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internal: true
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json:
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- '.[]'
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- engine:
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- sh
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- bash
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source: |
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aws eks describe-nodegroup --region $region --cluster-name $cluster --nodegroup-name $nodegroup --query 'nodegroup.nodeRole' --output json
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extractors:
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- type: json
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name: rolearn
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internal: true
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json:
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- '.'
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- engine:
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- sh
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- bash
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source: |
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aws iam list-attached-role-policies --role-name $(echo $rolearn | cut -d'/' -f2) --query 'AttachedPolicies[*].PolicyArn' --output json
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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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- "arn:aws:iam::aws:policy/AmazonEKS_CNI_Policy"
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negative: true
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- type: word
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words:
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- "["
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extractors:
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- type: dsl
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dsl:
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- '"EKS node group " + nodegroup + " in cluster " + cluster + " does not have AmazonEKS_CNI_Policy attached to its IAM role"'
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# digest: 4a0a00473045022023f8808874109fe7ecbba46a483828ba13f43be27154f5616fe50dc71b12cc43022100af8c38a314e3e68589d0d8fc67814595d173bc29827cdee00c0fcf3189049701:922c64590222798bb761d5b6d8e72950 |