CVE-2021-38547
Description
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.
CVSS Details
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Threat Intelligence
No active exploitation signals — not in CISA KEV and no EPSS score yet.
Affected Products 4
References 1
- nassiben.com https://www.nassiben.com/glowworm-attack
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.