CVE-2021-38547
First published: Wed Aug 11 2021(Updated: )
Logitech Z120 and S120 speakers through 2021-08-09 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. The power indicator LED of the speakers 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 their power consumption and as a result is also correlative to the light intensity of the LEDs. By analyzing measurements obtained from an electro-optical sensor directed at the power indicator LEDs of the speakers, we can recover the sound played by them.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Logitech Z120 Firmware | <=2021-08-09 | |
| Logitech Z120 | ||
| Logitech S120 Firmware | <=2021-08-09 | |
| Logitech S120 |
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Reference Links
- collector/nvd-index
- agent/author
- agent/severity
- agent/references
- agent/type
- agent/event
- agent/description
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/logitech
- canonical/logitech z120 firmware
- version/logitech z120 firmware/2021-08-09
- canonical/logitech z120
- canonical/logitech s120 firmware
- version/logitech s120 firmware/2021-08-09
- canonical/logitech s120