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2023-04-24 12:24:31 +02:00
{
"id": "CVE-2020-12638",
"sourceIdentifier": "cve@mitre.org",
"published": "2020-07-23T16:15:12.490",
"lastModified": "2021-07-21T11:39:23.747",
"vulnStatus": "Analyzed",
"descriptions": [
{
"lang": "en",
"value": "An encryption-bypass issue was discovered on Espressif ESP-IDF devices through 4.2, ESP8266_NONOS_SDK devices through 3.0.3, and ESP8266_RTOS_SDK devices through 3.3. Broadcasting forged beacon frames forces a device to change its authentication mode to OPEN, effectively disabling its 802.11 encryption."
},
{
"lang": "es",
"value": "Se detect\u00f3 un problema de omisi\u00f3n de cifrado en dispositivos Espressif ESP-IDF versiones hasta 4.2, dispositivos ESP8266_NONOS_SDK versiones hasta 3.0.3 y dispositivos ESP8266_RTOS_SDK versiones hasta 3.3. La transmisi\u00f3n de tramas beacon forjadas obliga a un dispositivo a cambiar su modo de autenticaci\u00f3n a OPEN, deshabilitando efectivamente su encriptaci\u00f3n 802.11"
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"attackVector": "ADJACENT_NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "NONE",
"baseScore": 6.8,
"baseSeverity": "MEDIUM"
},
"exploitabilityScore": 1.6,
"impactScore": 5.2
}
],
"cvssMetricV2": [
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"source": "nvd@nist.gov",
"type": "Primary",
"cvssData": {
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"vectorString": "AV:A/AC:M/Au:N/C:P/I:P/A:N",
"accessVector": "ADJACENT_NETWORK",
"accessComplexity": "MEDIUM",
"authentication": "NONE",
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"availabilityImpact": "NONE",
"baseScore": 4.3
},
"baseSeverity": "MEDIUM",
"exploitabilityScore": 5.5,
"impactScore": 4.9,
"acInsufInfo": false,
"obtainAllPrivilege": false,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
]
},
"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-287"
},
{
"lang": "en",
"value": "CWE-319"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
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"vulnerable": true,
"criteria": "cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:*",
"versionEndIncluding": "4.2",
"matchCriteriaId": "1C54B320-683C-4645-86DC-65CE4FA1EAB4"
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"criteria": "cpe:2.3:a:espressif:esp8266_nonos_sdk:*:*:*:*:*:*:*:*",
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"references": [
{
"url": "https://github.com/espressif/ESP8266_NONOS_SDK",
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
]
},
{
"url": "https://github.com/espressif/ESP8266_RTOS_SDK",
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
]
},
{
"url": "https://github.com/espressif/esp-idf",
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
]
},
{
"url": "https://lbsfilm.at/blog/wpa2-authenticationmode-downgrade-in-espressif-microprocessors",
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Patch",
"Third Party Advisory"
]
}
]
}