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    <title>Most recent sightings.</title>
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      <title>9461730b-62a5-4aef-92b5-46dc3e040be3</title>
      <link>https://vulnerability.circl.lu/sighting/9461730b-62a5-4aef-92b5-46dc3e040be3/export</link>
      <description>{"uuid": "9461730b-62a5-4aef-92b5-46dc3e040be3", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-38549", "type": "seen", "source": "https://t.me/cibsecurity/27167", "content": "\u203c CVE-2021-38549 \u203c\n\nMIRACASE MHUB500 USB splitters 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.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-08-11T20:50:42.000000Z"}</description>
      <content:encoded>{"uuid": "9461730b-62a5-4aef-92b5-46dc3e040be3", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-38549", "type": "seen", "source": "https://t.me/cibsecurity/27167", "content": "\u203c CVE-2021-38549 \u203c\n\nMIRACASE MHUB500 USB splitters 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.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-08-11T20:50:42.000000Z"}</content:encoded>
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      <pubDate>Wed, 11 Aug 2021 20:50:42 +0000</pubDate>
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