CVE-2020-26558

Open Source Vulnerabilities ASB-A-174886838

In smp_process_pairing_public_key of smp_act.cc, there is a possible interception of Bluetooth pairing from an on-path attacker due to improperly used crypto. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Open Source Vulnerabilities CVE-2020-26558

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.