This vulnerability occurs when the system permits multiple simultaneous connections to the backend using the same charging station ID. This can result in unauthorized access, data inconsistency, or potential manipulation of charging sessions. The lack of proper session management and expiration control allows attackers to exploit this weakness by reusing valid charging station IDs to establish multiple sessions concurrently.
Weakness
According to WASC, “Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization.”