The management web pages on the Sinapsi eSolar Light Photovoltaic System Monitor (aka Schneider Electric Ezylog photovoltaic SCADA management server), Sinapsi eSolar, and Sinapsi eSolar DUO with firmware before 2.0.2870_2.2.12 do not require authentication, which allows remote attackers to obtain administrative access via a direct request, as demonstrated by a request to ping.php.