Growatt Cloud Applications Authorization Bypass Vulnerability Allowing Access to User Charger Information

An authorization bypass vulnerability has been identified in Growatt Cloud Applications, specifically in the cloud portal versions through 3.6.0. This vulnerability allows unauthenticated attackers to access other users' charger information by exploiting an unprotected API.

Impact

Exploitation of this vulnerability could lead to unauthorized access to sensitive user information, specifically charger details, potentially allowing for further exploitation or manipulation of user accounts or devices.

Remediation

Growatt has reported that the cloud-based vulnerabilities were patched and no user action is needed. Users are advised to update all devices to the latest firmware version when available, use strong passwords, enable multi-factor authentication where applicable, and report any security concerns to Growatt's service email. CISA also recommends minimizing network exposure for control system devices, using firewalls to isolate control system networks from business networks, and employing secure remote access methods like VPNs.