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
Advisories
    | Source | ID | Title | 
|---|---|---|
|  EUVD | EUVD-2020-8591 | 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. | 
Fixes
    Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
        History
                    No history.
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-04T13:45:33.225Z
Reserved: 2020-08-04T00:00:00
Link: CVE-2020-16630
 Vulnrichment
                        Vulnrichment
                    No data.
 NVD
                        NVD
                    Status : Modified
Published: 2021-09-20T20:15:11.337
Modified: 2024-11-21T05:07:11.853
Link: CVE-2020-16630
 Redhat
                        Redhat
                    No data.
 OpenCVE Enrichment
                        OpenCVE Enrichment
                    No data.