Process with UID 0

No violationsstackroxhighruntime

Alert on deployments that contain processes running with UID 0

Rationale: Processes that are running with UID 0 run as the root user. This can allow for unintended privilege escalation if a container mounts host directories that are owned by the host's root user
Remediation: Specify the USER instruction in the Docker image or the runAsUser field within the Pod Security Context

CategoriesDevOps Best PracticesSecurity Best Practices

Compliance mappingsView coverage →

DORA EU 2022/2554: Art. 9.2
ISO/IEC 27001 2022: A.8.25A.8.9
NIST SP 800-53 rev. 5: CM-2
PCI DSS 4.0: 2.2.1
SOC 2 2017 TSC: CC8.1

Generated artifacts

1 of 5 targets supported

process-with-uid-0.yaml

- rule: process-with-uid-0
  desc: Alert on deployments that contain processes running with UID 0
  condition: user.uid in ("0")
  output: Process %proc.name executed by user %user.name (uid=%user.uid) in container %container.id image=%container.image.repository (policy=Process with UID 0)
  priority: ERROR
  source: syscall
  tags:
    - stackrox-import
    - policy
    - s

IR (canonical)

{
  "id": "7760a5f3-bca4-4ca8-94a7-ad89edbc0e2c",
  "name": "Process with UID 0",
  "description": "Alert on deployments that contain processes running with UID 0",
  "rationale": "Processes that are running with UID 0 run as the root user. This can allow for unintended privilege escalation if a container mounts host directories that are owned by the host's root user",
  "remediation": "Specify the USER instruction in the Docker image or the runAsUser field within the Pod Security Context",
  "severity": "high",
  "categories": [
    "DevOps Best Practices",
    "Security Best Practices"
  ],
  "lifecycle": [
    "runtime"
  ],
  "eventSource": "deployment",
  "scope": [],
  "exclusions": [
    {
      "name": "Don't alert on kube-system namespace",
      "namespace": "kube-system"
    },
    {
      "name": "Don't alert on istio-system namespace",
      "namespace": "istio-system"
    },
    {
      "name": "Don't alert on StackRox Namespace",
      "namespace": "stackrox"
    },
    {
      "name": "Don't alert on istio-system namespace",
      "namespace": "istio-system"
    },
    {
      "name": "aide-worker-fileintegrity",
      "namespace": "openshift-file-integrity"
    }
  ],
  "enforcement": {
    "failBuild": false
  },
  "expression": {
    "op": "criterion",
    "field": "process-uid",
    "values": [
      "0"
    ],
    "valuesOp": "or",
    "negate": false
  },
  "disabled": true
}

Original StackRox JSON

{
  "id": "7760a5f3-bca4-4ca8-94a7-ad89edbc0e2c",
  "name": "Process with UID 0",
  "description": "Alert on deployments that contain processes running with UID 0",
  "rationale": "Processes that are running with UID 0 run as the root user. This can allow for unintended privilege escalation if a container mounts host directories that are owned by the host's root user",
  "remediation": "Specify the USER instruction in the Docker image or the runAsUser field within the Pod Security Context",
  "disabled": true,
  "categories": [
    "DevOps Best Practices",
    "Security Best Practices"
  ],
  "lifecycleStages": [
    "RUNTIME"
  ],
  "eventSource": "DEPLOYMENT_EVENT",
  "exclusions": [
    {
      "name": "Don't alert on kube-system namespace",
      "deployment": {
        "name": "",
        "scope": {
          "cluster": "",
          "namespace": "kube-system",
          "label": null
        }
      },
      "image": null
    },
    {
      "name": "Don't alert on istio-system namespace",
      "deployment": {
        "name": "",
        "scope": {
          "cluster": "",
          "namespace": "istio-system",
          "label": null
        }
      },
      "image": null
    },
    {
      "name": "Don't alert on StackRox Namespace",
      "deployment": {
        "name": "",
        "scope": {
          "cluster": "",
          "namespace": "stackrox",
          "label": null
        }
      },
      "image": null
    },
    {
      "name": "Don't alert on istio-system namespace",
      "deployment": {
        "name": "",
        "scope": {
          "cluster": "",
          "namespace": "istio-system",
          "label": null
        }
      },
      "image": null
    },
    {
      "name": "Don't alert on deployment aide-worker-fileintegrity in namespace openshift-file-integrity",
      "deployment": {
        "name": "aide-worker-fileintegrity",
        "scope": {
          "cluster": "",
          "namespace": "openshift-file-integrity",
          "label": null
        }
      },
      "image": null
    }
  ],
  "scope": [],
  "severity": "HIGH_SEVERITY",
  "enforcementActions": [],
  "policySections": [
    {
      "sectionName": "",
      "policyGroups": [
        {
          "fieldName": "Process UID",
          "booleanOperator": "OR",
          "negate": false,
          "values": [
            {
              "value": "0"
            }
          ]
        }
      ]
    }
  ],
  "notifiers": [],
  "lastUpdated": null,
  "SORTName": "",
  "SORTLifecycleStage": "",
  "SORTEnforcement": false,
  "policyVersion": "1.1",
  "mitreAttackVectors": [],
  "criteriaLocked": true,
  "mitreVectorsLocked": true,
  "isDefault": true,
  "source": "IMPERATIVE"
}