TI’s BLE stack caches and reuses the LTK’s property for a bonded mobile. A LTK can be an unauthenticated-and-no-MITM-protection key created by Just Works or an authenticated-and-MITM-protection key created by Passkey Entry, Numeric Comparison or OOB. Assume that a victim mobile uses secure pairing to pair with a victim BLE device based on TI chips and generate an authenticated-and-MITM-protection LTK. If a fake mobile with the victim mobile’s MAC address uses Just Works and pairs with the victim device, the generated LTK still has the property of authenticated-and-MITM-protection. Therefore, the fake mobile can access attributes with the authenticated read/write permission.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-09-20T19:20:50

Updated: 2024-08-04T13:45:33.225Z

Reserved: 2020-08-04T00:00:00

Link: CVE-2020-16630

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-09-20T20:15:11.337

Modified: 2024-11-21T05:07:11.853

Link: CVE-2020-16630

cve-icon Redhat

No data.