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.
Metrics
Affected Vendors & Products
References
Link | Providers |
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https://www.nassiben.com/glowworm-attack |
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2021-08-11T15:25:33
Updated: 2024-08-04T01:44:23.398Z
Reserved: 2021-08-11T00:00:00
Link: CVE-2021-38545
Vulnrichment
No data.
NVD
Status : Modified
Published: 2021-08-11T16:15:07.280
Modified: 2024-11-21T06:17:24.193
Link: CVE-2021-38545
Redhat
No data.