CVE-2026-32088 Windows生物识别服务竞态条件漏洞

import threading import time # Simulated target function representing the vulnerable biometric check shared_resource = {"status": "locked"} def malicious_thread(): """Simulates an attacker attempting to bypass the check during the race window.""" print("[Attacker] Waiting for race window...") while True: if shared_resource["status"] == "checking": # Exploit the race condition: modify status before lock is re-acquired shared_resource["status"] = "bypassed" print("[Attacker] Race condition triggered! Status bypassed.") break def service_thread(): """Simulates the Windows Biometric Service operation.""" print("[Service] Starting biometric verification...") shared_resource["status"] = "checking" # Simulate processing time without proper locking time.sleep(0.001) if shared_resource["status"] == "checking": shared_resource["status"] = "verified" print("[Service] Verification successful.") else: print(f"[Service] Anomalous state detected: {shared_resource['status']}") if __name__ == "__main__": # Create threads to simulate concurrent execution t1 = threading.Thread(target=service_thread) t2 = threading.Thread(target=malicious_thread) # Start threads to trigger the race condition t2.start() t1.start() t1.join() t2.join() print(f"Final Resource Status: {shared_resource['status']}")