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CVE-2020-16630
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
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..
CVSSv2.0 Score
- Severity
- Medium
- Base Score
- 4.3/10
- Exploit Score
- 5.5/10
- Access Vector
- Adjacent_network
- Access Complexity
- Medium
- Authentication Required
- None
- Impact Score
- 4.9/10
- Confidentiality Impact
- Partial
- Availability Impact
- None
- Integrity Impact
- Partial
CVSSv3.1 Score
- Severity
- Medium
- Base Score
- 6.8/10
- Exploit Score
- 1.6/10
- Access Vector
- Adjacent_network
- Access Complexity
- High
- Privileges Required
- None
- Impact Score
- 5.2/10
- Confidentiality Impact
- High
- Availability Impact
- None
- Integrity Impact
- High
- Scope
- Unchanged
- User Interaction
- None
Products Affected
| CPE | Affected | Vulnerable | Excluding | Edit |
|---|---|---|---|---|
| cpe:2.3:o:ti:real-time_operating_system:-:*:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ti:z-stack:-:*:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ti:15.4-stack:-:*:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ti:openthread:-:*:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ti:easylink:-:*:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ti:ble5-stack:-:*:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ti:dynamic_multi-protocal_manager:-:*:*:*:*:*:*:* |
Yes
|
- | - |