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Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure) by reflection of the public key and the authentication evidence of the initiating device potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. The attack methodology determines the Passkey value one bit at a time.

🗓️ 23 Apr 2022 07:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 1 Views

Bluetooth pairing can leak passkey bits via key reflection in Core Specification 2.1–5.2.

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23 Apr 2022 07:00Current
6.9Medium risk
Vulners AI Score6.9
CVSS 3.14.2
CVSS 24.3
EPSS0.00034
1