CVE-2026-29044 EVerest授权撤回绕过漏洞

import time import asyncio # This is a conceptual PoC to demonstrate the race condition. # It simulates sending WithdrawAuthorization before TransactionStarted. async def exploit_everest(): print("[*] EVerest CVE-2026-29044 PoC Simulation") print("[*] Target: EVerest < 2026.02.0") # 1. Normal Start Transaction Request print("[+] Step 1: Sending StartTransaction request...") # Assume this triggers the internal process but the event is delayed # 2. Malicious Timing: Send WithdrawAuthorization immediately # This is the core of the exploit: race the internal event processing print("[+] Step 2: Sending WithdrawAuthorization (Race Condition Triggered)...") # Simulate system logic vulnerability transaction_active = False # Because TransactionStarted event hasn't been processed yet if not transaction_active: print("[!] System Logic Flaw: AuthHandler sees transaction_active=False") print("[!] System calls: withdraw_authorization_callback -> Charger::deauthorize()") print("[-] System FAILS to send: StopTransaction") else: print("[-] Patched behavior: StopTransaction would be sent.") print("[+] Step 3: TransactionStarted event finally processed.") print("[*] Result: Charging continues without authorization (Bypass Successful).") if __name__ == "__main__": asyncio.run(exploit_everest())