CVE-2020-16630
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
20/09/2021
Last modified:
07/10/2021
Description
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.
Impact
Base Score 3.x
6.80
Severity 3.x
MEDIUM
Base Score 2.0
4.30
Severity 2.0
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:ti:15.4-stack:-:*:*:*:*:*:*:* | ||
| cpe:2.3:a:ti:ble5-stack:-:*:*:*:*:*:*:* | ||
| cpe:2.3:a:ti:dynamic_multi-protocal_manager:-:*:*:*:*:*:*:* | ||
| cpe:2.3:a:ti:easylink:-:*:*:*:*:*:*:* | ||
| cpe:2.3:a:ti:openthread:-:*:*:*:*:*:*:* | ||
| cpe:2.3:a:ti:z-stack:-:*:*:*:*:*:*:* | ||
| cpe:2.3:o:ti:real-time_operating_system:-:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page