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CVE-2017-9392

Estado: ModificadaAlta (8.8)—

An issue was discovered on Vera VeraEdge 1.7.19 and Veralite 1.7.481 devices. The device provides UPnP services that are available on port 3480 and can also be accessed via port 80 using the url "/port_3480". It seems that the UPnP services provide "request_image" as one of the service actions for a normal user to retrieve an image from a camera that is controlled by the controller. It seems that the "res" (resolution) parameter passed in the query string is not sanitized and is stored on the stack which allows an attacker to overflow the buffer.

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The function "LU::Generic_IP_Camera_Manager::REQ_Image" is activated when the lu_request_image is passed as the "id" parameter in the query string. This function then calls "LU::Generic_IP_Camera_Manager::GetUrlFromArguments". This function retrieves all the parameters passed in the query string including "res" and then uses the value passed in it to fill up buffer using the sprintf function. However, the function in this case lacks a simple length check and as a result an attacker who is able to send more than 184 characters can easily overflow the values stored on the stack including the $RA value and thus execute code on the device.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

Getvera — Veraedge FirmwareGetvera — Veralite Firmware

CWE

Referencias

JSON original (NVD)

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      "value": "An issue was discovered on Vera VeraEdge 1.7.19 and Veralite 1.7.481 devices. The device provides UPnP services that are available on port 3480 and can also be accessed via port 80 using the url \"/port_3480\". It seems that the UPnP services provide \"request_image\" as one of the service actions for a normal user to retrieve an image from a camera that is controlled by the controller. It seems that the \"res\" (resolution) parameter passed in the query string is not sanitized and is stored on the stack which allows an attacker to overflow the buffer. The function \"LU::Generic_IP_Camera_Manager::REQ_Image\" is activated when the lu_request_image is passed as the \"id\" parameter in the query string. This function then calls \"LU::Generic_IP_Camera_Manager::GetUrlFromArguments\". This function retrieves all the parameters passed in the query string including \"res\" and then uses the value passed in it to fill up buffer using the sprintf function. However, the function in this case lacks a simple length check and as a result an attacker who is able to send more than 184 characters can easily overflow the values stored on the stack including the $RA value and thus execute code on the device."
    },
    {
      "lang": "es",
      "value": "Se detectó un problema en los dispositivos VeraEdge versión 1.7.19 y Veralite versión 1.7.481 de Vera . El dispositivo proporciona servicios UPnP que están disponibles en el puerto 3480 y también pueden ser accedidos por medio del puerto 80 mediante la url \"/port_3480\". Parece que los servicios UPnP proporcionan \"request_image\" como una de las acciones de servicio para que un usuario normal recupere una imagen de una cámara que es controlada por el controlador. Al parecer el parámetro \"res\" (resolución) pasado en la cadena de consulta no está saneado y se almacena en la pila, lo que permite a un atacante desbordar el búfer. La función \"LU::Generic_IP_Camera_Manager::REQ_Image\" se activa cuando lu_request_image se pasa como el parámetro \"id\" en la cadena de consulta. Esta función llama a \"LU::Generic_IP_Camera_Manager::GetUrlFromArguments\". Esta función recupera todos los parámetros pasados ??en la cadena de consulta incluyendo \"res\" y después usa el valor pasado en ella para llenar el búfer usando la función sprintf. Sin embargo, la función en este caso carece de una comprobación de longitud simple y, como resultado, un atacante que puede enviar más de 184 caracteres puede desbordar fácilmente los valores almacenados en la pila, incluyendo el valor de $RA y así ejecutar el código en el dispositivo."
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  "lastModified": "2026-06-17T01:28:01.760",
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