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.
Metrics
Affected Vendors & Products
References
History
No history.
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
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2021-09-20T20:15:11.337
Modified: 2021-10-07T13:13:16.507
Link: CVE-2020-16630
Redhat
No data.