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{
"id": "CVE-2021-32066",
"sourceIdentifier": "cve@mitre.org",
"published": "2021-08-01T19:15:07.697",
"lastModified": "2023-04-30T23:15:45.157",
"vulnStatus": "Modified",
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"descriptions": [
{
"lang": "en",
"value": "An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. Net::IMAP does not raise an exception when StartTLS fails with an an unknown response, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a \"StartTLS stripping attack.\""
},
{
"lang": "es",
"value": "Se ha detectado un problema en Ruby versiones hasta 2.6.7, versiones 2.7.x hasta 2.7.3, y versiones 3.x hasta 3.0.1. Net::IMAP no lanza una excepci\u00f3n cuando StartTLS falla con una respuesta desconocida, lo que podr\u00eda permitir a atacantes tipo man-in-the-middle omitir las protecciones TLS, al aprovechar una posici\u00f3n de red entre el cliente y el registro para bloquear el comando StartTLS, tambi\u00e9n se conoce como \"StartTLS stripping attack\""
}
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "NONE",
"baseScore": 7.4,
"baseSeverity": "HIGH"
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"impactScore": 5.2
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"baseScore": 5.8
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"exploitabilityScore": 8.6,
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"acInsufInfo": false,
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}
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{
"url": "https://security.netapp.com/advisory/ntap-20210902-0004/",
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"url": "https://www.ruby-lang.org/en/news/2021/07/07/starttls-stripping-in-net-imap/",
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