CVE-2025-4557 identifies a critical security vulnerability in the ZONG YU Parking Management System, specifically a Missing Authentication issue (CWE-306) affecting certain APIs. This vulnerability allows unauthenticated remote attackers to access and invoke critical system functions without any form of authentication or authorization. The exposed functions include the ability to open parking gates and restart the entire system. The absence of authentication means that any attacker with network access to the system's API endpoints can perform these actions, potentially disrupting parking operations or causing physical security breaches. The vulnerability has a CVSS 3.1 base score of 9.1, indicating a critical severity level. The attack vector is network-based (AV:N), requires no privileges (PR:N), no user interaction (UI:N), and impacts system integrity and availability (I:H/A:H) but not confidentiality (C:N). The scope is unchanged (S:U), meaning the impact is confined to the vulnerable component. No patches are currently available, and no known exploits have been reported in the wild yet. The vulnerability was published on May 12, 2025, and assigned by TW-CERT. Given the nature of the affected system, exploitation could lead to unauthorized physical access to parking facilities, disruption of parking services, and potential safety risks due to system restarts or gate manipulations.

For European organizations, this vulnerability poses significant risks especially to entities managing parking facilities in critical infrastructure, commercial centers, hospitals, airports, and government buildings. Unauthorized gate operations could allow physical intrusion, theft, or sabotage. Restarting the system remotely could cause denial of service, disrupting parking availability and potentially impacting emergency services or logistics operations. The lack of authentication means attackers do not need credentials or insider access, increasing the likelihood of exploitation if the system is exposed to public or poorly segmented networks. The impact extends beyond operational disruption to physical security and safety concerns. Organizations relying on ZONG YU Parking Management Systems must consider the risk of reputational damage, financial losses from service downtime, and potential regulatory penalties under GDPR if the disruption affects personal data processing or emergency response capabilities.

1. Immediate network segmentation: Isolate the Parking Management System APIs from public and untrusted networks using firewalls and VLANs to restrict access only to authorized internal systems. 2. Implement access control: Deploy reverse proxies or API gateways that enforce authentication and authorization for all API calls until the vendor releases an official patch. 3. Monitor and log API access: Enable detailed logging and real-time monitoring of API usage to detect unauthorized access attempts or anomalous behavior. 4. Physical security controls: Enhance physical security measures at parking facilities to mitigate risks from unauthorized gate operations. 5. Vendor engagement: Urgently engage with ZONG YU for patch availability and apply updates as soon as they are released. 6. Incident response preparedness: Develop and test incident response plans specific to parking system compromise scenarios. 7. Network-level protections: Use intrusion detection/prevention systems (IDS/IPS) to identify and block suspicious traffic targeting the vulnerable APIs. 8. Temporary disabling: Where feasible, disable or restrict the vulnerable API endpoints until a secure fix is implemented.