2024-12-08 03:06:42 +00:00

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{
"id": "CVE-2020-16630",
"sourceIdentifier": "cve@mitre.org",
"published": "2021-09-20T20:15:11.337",
"lastModified": "2024-11-21T05:07:11.853",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "TI\u2019s BLE stack caches and reuses the LTK\u2019s 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\u2019s 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."
},
{
"lang": "es",
"value": "La pila BLE de TI almacena en cach\u00e9 y reusa la propiedad del LTK para un m\u00f3vil vinculado. Una LTK puede ser una clave no autenticada y sin protecci\u00f3n MITM creada por Just Works o una clave autenticada y con protecci\u00f3n MITM creada por Passkey Entry, Numeric Comparison u OOB. Supongamos que un m\u00f3vil v\u00edctima usa el emparejamiento seguro para emparejarse con un dispositivo BLE v\u00edctima basado en chips TI y genera una LTK autenticada y de protecci\u00f3n MITM. Si un m\u00f3vil falso con la direcci\u00f3n MAC del m\u00f3vil v\u00edctima usa Just Works y se empareja con el dispositivo v\u00edctima, el LTK generado sigue teniendo la propiedad de autenticaci\u00f3n y protecci\u00f3n MITM. Por lo tanto, el m\u00f3vil falso puede acceder a los atributos con el permiso de lectura/escritura autenticado"
}
],
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"source": "nvd@nist.gov",
"type": "Primary",
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"vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"attackVector": "ADJACENT_NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "NONE"
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}
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"accessComplexity": "MEDIUM",
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"availabilityImpact": "NONE"
},
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"exploitabilityScore": 5.5,
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"acInsufInfo": false,
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}
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}
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