CVE-2021-38547

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.
References
Link Resource
https://www.nassiben.com/glowworm-attack Exploit Third Party Advisory
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:logitech:z120_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:logitech:z120:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:logitech:s120_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:logitech:s120:-:*:*:*:*:*:*:*

History

23 Aug 2021, 17:41

Type Values Removed Values Added
CPE cpe:2.3:o:logitech:s120_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:logitech:s120:-:*:*:*:*:*:*:*
cpe:2.3:h:logitech:z120:-:*:*:*:*:*:*:*
cpe:2.3:o:logitech:z120_firmware:*:*:*:*:*:*:*:*
CWE NVD-CWE-noinfo
CVSS v2 : unknown
v3 : unknown
v2 : 4.3
v3 : 5.9
References (MISC) https://www.nassiben.com/glowworm-attackĀ - (MISC) https://www.nassiben.com/glowworm-attackĀ - Exploit, Third Party Advisory

11 Aug 2021, 16:18

Type Values Removed Values Added
New CVE

Information

Published : 2021-08-11 16:15

Updated : 2023-12-10 13:55


NVD link : CVE-2021-38547

Mitre link : CVE-2021-38547

CVE.ORG link : CVE-2021-38547


JSON object : View

Products Affected

logitech

  • s120
  • z120
  • z120_firmware
  • s120_firmware