The following code is for security research and authorized testing only.
python
# Proof of Concept for Race Condition (Conceptual)
# Note: This is a simulation of the race condition logic.
import threading
import time
class EventNotificationModule:
def __init__(self):
self.locked = False
def critical_section(self):
if not self.locked:
self.locked = True
print("[+] Resource locked, processing event...")
time.sleep(0.1) # Simulate processing delay
# Vulnerability point: expected state change might be interrupted
self.locked = False
print("[-] Resource unlocked.")
else:
print("[!] Race condition detected! Resource already locked.")
module = EventNotificationModule()
def attacker_thread():
print("[*] Attacker thread started.")
while True:
module.critical_section()
time.sleep(0.05)
def user_interaction():
print("[*] Simulating user interaction.")
time.sleep(0.02)
module.critical_section()
# Create threads to simulate the race condition
threads = []
for i in range(2):
t = threading.Thread(target=attacker_thread)
threads.append(t)
t.start()
# Trigger user interaction as required by UI:R
user_thread = threading.Thread(target=user_interaction)
user_thread.start()
for t in threads:
t.join()
user_thread.join()