CVE-2025-68956：华为卡框架模块多线程竞态条件漏洞

# CVE-2025-68956 PoC - Race Condition in Card Framework Module # This PoC demonstrates a race condition in multi-threaded card framework access import threading import time import os def trigger_card_operation(thread_id): """Simulate card framework operation that triggers race condition""" print(f"Thread {thread_id}: Initiating card operation") # Simulate race condition window # In real scenario, this would interact with vulnerable card framework shared_resource = None # Thread 1: Read operation if thread_id == 1: shared_resource = read_card_state() time.sleep(0.001) # Small delay creates race window # Thread 2: Write operation during the race window if thread_id == 2: time.sleep(0.0005) # Timing to hit the race window write_card_state() # Both threads accessing shared state access_shared_card_state(thread_id) print(f"Thread {thread_id}: Operation completed") def read_card_state(): """Simulate reading card framework state""" return "CARD_STATE_READ" def write_card_state(): """Simulate writing to card framework - triggers race condition""" print("Race condition triggered: Concurrent write during read operation") def access_shared_card_state(thread_id): """Access shared resource without proper synchronization""" # Missing mutex/lock protection creates vulnerability shared_buffer = [] shared_buffer.append(f"Thread_{thread_id}_data") return shared_buffer def main(): print("CVE-2025-68956 PoC - Multi-thread Race Condition") print("Target: Huawei Card Framework Module") print("-" * 50) # Create multiple threads to trigger race condition threads = [] for i in range(5): t = threading.Thread(target=trigger_card_operation, args=(i,)) threads.append(t) t.start() # Wait for all threads to complete for t in threads: t.join() print("-" * 50) print("Race condition test completed") print("Note: Real exploitation requires device access and specific timing") if __name__ == "__main__": main()