{
  "id": "CVE-2021-38543",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2021-08-11T16:15:07.210",
  "lastModified": "2024-11-21T06:17:23.650",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "TP-Link UE330 USB splitter devices through 2021-08-09, in certain specific use cases in which the device supplies power to audio-output equipment, allow remote attackers to recover speech signals from an LED on the device, via a telescope and an electro-optical sensor, aka a \"Glowworm\" attack. We assume that the USB splitter supplies power to some speakers. The power indicator LED of the USB splitter is connected directly to the power line, as a result, the intensity of the USB splitter's power indicator LED is correlative to its power consumption. The sound played by the connected speakers affects the USB splitter's power consumption and as a result is also correlative to the light intensity of the LED. By analyzing measurements obtained from an electro-optical sensor directed at the power indicator LED of the USB splitter, we can recover the sound played by the connected speakers."
    },
    {
      "lang": "es",
      "value": "Los dispositivos splitter USB TP-Link UE330 hasta 09-08-2021, en determinados casos de uso en los que el dispositivo suministra energ\u00eda a equipos de salida de audio, permiten a atacantes remotos recuperar las se\u00f1ales de voz de un LED del dispositivo, por medio de un telescopio y un sensor electro-\u00f3ptico, tambi\u00e9n se conoce como un ataque \"Glowworm\". Suponemos que el divisor USB suministra energ\u00eda a unos altavoces. El LED indicador de potencia del divisor USB est\u00e1 conectado directamente a la l\u00ednea de alimentaci\u00f3n, por lo que la intensidad del LED indicador de potencia del divisor USB es correlativa a su consumo de energ\u00eda. El sonido reproducido por los altavoces conectados afecta al consumo de energ\u00eda del divisor USB y, en consecuencia, tambi\u00e9n es correlativo a la intensidad luminosa del LED. Al analizar las medidas obtenidas por un sensor electro-\u00f3ptico dirigido al LED indicador de potencia del splitter USB, podemos recuperar el sonido reproducido por los altavoces conectados"
    }
  ],
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          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
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