CVE-2018-20219

An issue was discovered on Teracue ENC-400 devices with firmware 2.56 and below. After successful authentication, the device sends an authentication cookie to the end user such that they can access the devices web administration panel. This token is hard-coded to a string in the source code (/usr/share/www/check.lp file). By setting this cookie in a browser, an attacker is able to maintain access to every ENC-400 device without knowing the password, which results in authentication bypass. Even if a user changes the password on the device, this token is static and unchanged.

An issue was discovered on Teracue ENC-400 devices with firmware 2.56 and below. After successful authentication, the device sends an authentication cookie to the end user such that they can access the devices web administration panel. This token is hard-coded to a string in the source code (/usr/share/www/check.lp file). By setting this cookie in a browser, an attacker is able to maintain access to every ENC-400 device without knowing the password, which results in authentication bypass. Even if a user changes the password on the device, this token is static and unchanged.

Se ha descubierto un problema en dispositivos Teracue ENC-400 con firmware en versiones 2.56 y anteriores. Tras una autenticación exitosa, el dispositivo envía una cookie de autenticación al usuario final para que pueda acceder al panel de administración web del dispositivo. Este token está embebido en una cadena en el código fuente (archivo /usr/share/www/check.lp). Al configurar esta cookie en un navegador, un atacante puede mantener el acceso a todos los dispositivos ENC-400 sin conocer la contraseña, lo que resulta en una omisión de autenticación. Incluso aunque un usuario cambie la contraseña en el dispositivo, este token se mantiene estático e invariable.