CVE-2020-16630
MEDIUM 6.8EPSS 0.7%
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.
- CVSS v3.1
- 6.8 MEDIUM
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - CVSS v2.0
- 4.3 MEDIUM
AV:A/AC:M/Au:N/C:P/I:P/A:N - EPSS
- 0.69% chance of exploitation in the next 30 days, 50th percentile
- Published
- 2021-09-20
- Updated
- 2024-08-04