CVE-2021-38543

TP-Link UE330 USB splitter 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 USB splitter supplies power to some speakers. The power indicator LED of the USB splitter is connected directly to the power line, as a result, the intensity of the USB splitter's power indicator LED is correlative to its power consumption. The sound played by the connected speakers affects the USB splitter'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 USB splitter, we can recover the sound played by the connected speakers.
References
Link Resource
https://www.nassiben.com/glowworm-attack Exploit Third Party Advisory
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:tp-link:ue330_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:tp-link:ue330:-:*:*:*:*:*:*:*

History

23 Aug 2021, 16:56

Type Values Removed Values Added
CPE cpe:2.3:o:tp-link:ue330_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:tp-link:ue330:-:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown
v2 : 4.3
v3 : 5.9
CWE NVD-CWE-noinfo
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 : 2024-02-04 21:47


NVD link : CVE-2021-38543

Mitre link : CVE-2021-38543

CVE.ORG link : CVE-2021-38543


JSON object : View

Products Affected

tp-link

  • ue330
  • ue330_firmware