Container Security Scanner Skill

Purpose

Automated container image and Kubernetes security scanning to identify vulnerabilities, misconfigurations, secrets, and compliance issues in containerized environments.

Capabilities

Image Vulnerability Scanning

• Scan container images for known CVEs using Trivy, Grype, or Anchore
• Detect vulnerabilities in OS packages and application dependencies
• Generate SBOM (Software Bill of Materials) in CycloneDX or SPDX format
• Track vulnerability severity (Critical, High, Medium, Low)

Dockerfile Security Analysis

• Check Dockerfile best practices and security issues
• Identify privileged container configurations
• Detect hardcoded secrets in Dockerfiles
• Verify base image security and freshness

Kubernetes Security Scanning

• Run Kubernetes CIS benchmark checks using kube-bench
• Analyze pod security policies and standards
• Check RBAC configurations for over-permissive access
• Detect insecure network policies

Secrets Detection

• Scan images for embedded secrets and credentials
• Identify API keys, tokens, and passwords in layers
• Check environment variable configurations

Image Signature Verification

• Verify container image signatures using cosign
• Validate image provenance and attestations
• Check image registry security configurations

Compliance Reporting

• Generate compliance reports (CIS, NIST, PCI-DSS)
• Map findings to compliance controls
• Track remediation status and timelines

Integrations

• Trivy: Comprehensive vulnerability scanner for containers
• Grype: Container image vulnerability scanner
• Syft: SBOM generation tool
• kube-bench: Kubernetes CIS benchmark checker
• Falco: Runtime security monitoring
• Anchore: Enterprise container security platform
• cosign: Container image signing and verification

Target Processes

• Container Security Scanning Process
• DevSecOps Pipeline Integration
• IaC Security Scanning
• Kubernetes Security Hardening
• Container Image Build Pipeline

Input Schema

{
  "type": "object",
  "properties": {
    "imageName": {
      "type": "string",
      "description": "Container image name with tag"
    },
    "registry": {
      "type": "string",
      "description": "Container registry URL"
    },
    "dockerfilePath": {
      "type": "string",
      "description": "Path to Dockerfile for static analysis"
    },
    "kubeManifestPath": {
      "type": "string",
      "description": "Path to Kubernetes manifests"
    },
    "scanType": {
      "type": "array",
      "items": {
        "type": "string",
        "enum": ["vulnerability", "config", "secrets", "compliance", "sbom"]
      }
    },
    "severityThreshold": {
      "type": "string",
      "enum": ["CRITICAL", "HIGH", "MEDIUM", "LOW"]
    }
  },
  "required": ["imageName"]
}

Output Schema

{
  "type": "object",
  "properties": {
    "scanId": {
      "type": "string"
    },
    "imageName": {
      "type": "string"
    },
    "scanTimestamp": {
      "type": "string",
      "format": "date-time"
    },
    "vulnerabilities": {
      "type": "object",
      "properties": {
        "critical": { "type": "integer" },
        "high": { "type": "integer" },
        "medium": { "type": "integer" },
        "low": { "type": "integer" },
        "findings": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "cveId": { "type": "string" },
              "severity": { "type": "string" },
              "package": { "type": "string" },
              "fixedVersion": { "type": "string" },
              "description": { "type": "string" }
            }
          }
        }
      }
    },
    "misconfigurations": {
      "type": "array"
    },
    "secrets": {
      "type": "array"
    },
    "complianceStatus": {
      "type": "object"
    },
    "recommendations": {
      "type": "array",
      "items": { "type": "string" }
    }
  }
}

Usage Example

skill: {
  name: 'container-security-scanner',
  context: {
    imageName: 'myapp:v1.2.3',
    registry: 'registry.example.com',
    scanType: ['vulnerability', 'config', 'secrets'],
    severityThreshold: 'HIGH'
  }
}