CVE-2021-38546 Information disclosure in n/a
Remote attackers can recover audio signals from CREATIVE Pebble speakers by analyzing power indicator LED fluctuations using optical sensors.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-38546?
CVE-2021-38546 is a medium-severity vulnerability in n/a, published on 11 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
CREATIVE Pebble devices 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.
Which versions are affected by CVE-2021-38546?
It affects 4 products.
Products include Creative Pebble Firmware, Creative Pebble Plus Firmware, Creative Pebble V2 Firmware, Creative Pebble V3 Firmware.
How do I fix CVE-2021-38546?
No fix has been published for CVE-2021-38546 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-38546 being exploited?
There is no known exploitation of CVE-2021-38546 in the wild and no public exploit code.
Sources
Also known as GHSA-mh67-cqc8-64mm.