Process Targeting Kubernetes Service Endpoint

No violationsstackroxhighruntime

Detects misuse of the Kubernetes Service API endpoint

Rationale: A pod communicating to a Kubernetes API from via command line is highly irregular
Remediation: Look for open ports that may allow remote execution. Remove network utilities like curl and wget that allow these connections. Consider a firewall deny ingress firewall rule to the node serving the API

CategoriesKubernetes

Generated artifacts

1 of 5 targets supported

process-targeting-kubernetes-service-endpoint.yaml

- rule: process-targeting-kubernetes-service-endpoint
  desc: Detects misuse of the Kubernetes Service API endpoint
  condition: proc.cmdline contains "https://(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}|\$.?KUBERNETES_(PORT_443_TCP_ADDR|SERVICE_HOST).?)(:443)?/apis?/(v1(beta.)?/)?(.*\.k8s\.io|clusterrole.*|role.*|networkpolicies|cronjobs|certificate.*|podsecurity.*|secrets.*)"
  output: Process %proc.name executed by user %user.name (uid=%user.uid) in container %container.id image=%container.image.repository (policy=Process Targeting Kubernetes Service Endpoint)
  priority: ERROR
  source: syscall
  tags:
    - stackrox-import
    - policy

IR (canonical)

{
  "id": "251136ca-c92c-4474-a2c7-4949c71b745f",
  "name": "Process Targeting Kubernetes Service Endpoint",
  "description": "Detects misuse of the Kubernetes Service API endpoint",
  "rationale": "A pod communicating to a Kubernetes API from via command line is highly irregular",
  "remediation": "Look for open ports that may allow remote execution. Remove network utilities like curl and wget that allow these connections. Consider a firewall deny ingress firewall rule to the node serving the API",
  "severity": "high",
  "categories": [
    "Kubernetes"
  ],
  "lifecycle": [
    "runtime"
  ],
  "eventSource": "deployment",
  "scope": [],
  "exclusions": [],
  "enforcement": {
    "failBuild": false
  },
  "expression": {
    "op": "criterion",
    "field": "process-arguments",
    "values": [
      "https://(\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}|\\$.?KUBERNETES_(PORT_443_TCP_ADDR|SERVICE_HOST).?)(:443)?/apis?/(v1(beta.)?/)?(.*\\.k8s\\.io|clusterrole.*|role.*|networkpolicies|cronjobs|certificate.*|podsecurity.*|secrets.*)"
    ],
    "valuesOp": "or",
    "negate": false
  },
  "disabled": false
}

Original StackRox JSON

{
  "id": "251136ca-c92c-4474-a2c7-4949c71b745f",
  "name": "Process Targeting Kubernetes Service Endpoint",
  "description": "Detects misuse of the Kubernetes Service API endpoint",
  "rationale": "A pod communicating to a Kubernetes API from via command line is highly irregular",
  "remediation": "Look for open ports that may allow remote execution. Remove network utilities like curl and wget that allow these connections. Consider a firewall deny ingress firewall rule to the node serving the API",
  "disabled": false,
  "categories": [
    "Kubernetes"
  ],
  "lifecycleStages": [
    "RUNTIME"
  ],
  "eventSource": "DEPLOYMENT_EVENT",
  "exclusions": [],
  "scope": [],
  "severity": "HIGH_SEVERITY",
  "enforcementActions": [],
  "policySections": [
    {
      "sectionName": "",
      "policyGroups": [
        {
          "fieldName": "Process Arguments",
          "booleanOperator": "OR",
          "negate": false,
          "values": [
            {
              "value": "https://(\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}|\\$.?KUBERNETES_(PORT_443_TCP_ADDR|SERVICE_HOST).?)(:443)?/apis?/(v1(beta.)?/)?(.*\\.k8s\\.io|clusterrole.*|role.*|networkpolicies|cronjobs|certificate.*|podsecurity.*|secrets.*)"
            }
          ]
        }
      ]
    }
  ],
  "notifiers": [],
  "lastUpdated": null,
  "SORTName": "",
  "SORTLifecycleStage": "",
  "SORTEnforcement": false,
  "policyVersion": "1.1",
  "mitreAttackVectors": [
    {
      "tactic": "TA0007",
      "techniques": [
        "T1613"
      ]
    }
  ],
  "criteriaLocked": true,
  "mitreVectorsLocked": true,
  "isDefault": true,
  "source": "IMPERATIVE"
}