Vulnerability-Lookup

FKIE_CVE-2021-38545

Vulnerability from fkie_nvd - Published: 2021-08-11 16:15 - Updated: 2024-11-21 06:17

Severity ?

5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

Raspberry Pi 3 B+ and 4 B 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 Raspberry Pi supplies power to some speakers. The power indicator LED of the Raspberry Pi is connected directly to the power line, as a result, the intensity of a device's power indicator LED is correlative to the power consumption. The sound played by the speakers affects the Raspberry Pi'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 Raspberry Pi, we can recover the sound played by the speakers.

References

	URL	Tags
	cve@mitre.org	https://www.nassiben.com/glowworm-attack	Exploit, Third Party Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://www.nassiben.com/glowworm-attack	Exploit, Third Party Advisory

Impacted products

Vendor	Product	Version
raspberrypi	raspberry_pi_4_model_b_firmware	*
raspberrypi	raspberry_pi_4_model_b	-
raspberrypi	raspberry_pi_3_model_b\+_firmware	*
raspberrypi	raspberry_pi_3_model_b\+	-

JSON

To clipboard

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      "value": "Raspberry Pi 3 B+ and 4 B 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 Raspberry Pi supplies power to some speakers. The power indicator LED of the Raspberry Pi is connected directly to the power line, as a result, the intensity of a device\u0027s power indicator LED is correlative to the power consumption. The sound played by the speakers affects the Raspberry Pi\u0027s 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 Raspberry Pi, we can recover the sound played by the speakers."
    },
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      "value": "Los dispositivos Raspberry Pi 3 B+ y 4 B hasta 09-08-2021, en determinados casos de uso en los que el dispositivo suministra energ\u00eda a los 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 la Raspberry Pi suministra energ\u00eda a unos altavoces. El LED indicador de potencia de la Raspberry Pi est\u00e1 conectado directamente a la l\u00ednea de alimentaci\u00f3n, por lo que la intensidad del LED indicador de potencia del dispositivo es correlativa al consumo de energ\u00eda. El sonido reproducido por los altavoces afecta al consumo de energ\u00eda de la Raspberry Pi y, en consecuencia, tambi\u00e9n es correlativo a la intensidad de la luz del LED. Al analizar las medidas obtenidas de un sensor electro-\u00f3ptico dirigido al LED indicador de potencia de la Raspberry Pi, podemos recuperar el sonido reproducido por los altavoces"
    }
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  "id": "CVE-2021-38545",
  "lastModified": "2024-11-21T06:17:24.193",
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        "obtainOtherPrivilege": false,
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CVE-2021-38545 (GCVE-0-2021-38545)

Vulnerability from cvelistv5 – Published: 2021-08-11 15:25 – Updated: 2024-08-04 01:44

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

https://www.nassiben.com/glowworm-attack

x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2021-38545

CVE-2021-38545 (GCVE-0-2021-38545)

Tags

Sightings

Nomenclature