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.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
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ti 15.4-stack - |
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ti ble5-stack - |
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ti dynamic multi-protocal manager - |
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ti easylink - |
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ti openthread - |
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ti z-stack - |
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ti real-time operating system - |
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