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CVE-2016-0800

Estado: ModificadaMedia (5.9)—

The SSLv2 protocol, as used in OpenSSL before 1.0.1s and 1.0.2 before 1.0.2g and other products, requires a server to send a ServerVerify message before establishing that a client possesses certain plaintext RSA data, which makes it easier for remote attackers to decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle, aka a "DROWN" attack.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (3)

Openssl — OpensslPulsesecure — ClientPulsesecure — Steel Belted Radius

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2016-0800",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 5.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2016-03-01T20:59:00.253",
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      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160302-openssl",
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      "url": "http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160330-01-openssl-en",
      "source": "secalert@redhat.com"
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    {
      "url": "http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html",
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    {
      "url": "http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html",
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      "url": "http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html",
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      "url": "https://www.openssl.org/news/secadv/20160301.txt",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "url": "https://www.openssl.org/news/secadv/20160301.txt",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-200"
        },
        {
          "lang": "en",
          "value": "CWE-310"
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      "lang": "en",
      "value": "The SSLv2 protocol, as used in OpenSSL before 1.0.1s and 1.0.2 before 1.0.2g and other products, requires a server to send a ServerVerify message before establishing that a client possesses certain plaintext RSA data, which makes it easier for remote attackers to decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle, aka a \"DROWN\" attack."
    },
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      "value": "El protocolo SSLv2, como se utiliza en OpenSSL en versiones anteriores a 1.0.1s y 1.0.2 en versiones anteriores a 1.0.2g y otros productos requiere un servidor para enviar un mensaje ServerVerify antes de establecer que un cliente posee ciertos datos RSA en texto plano, lo que facilita a atacantes remotos descifrar datos de texto cifrados con TLS aprovechándose de un Bleichenbacher RSA padding oracle, también conocida como ataque \"DROWN\"."
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  "lastModified": "2026-06-17T00:38:15.603",
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