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CVE-2018-1000858

Estado: ModificadaAlta (8.8)—

GnuPG, de la versión 2.1.12 a la 2.2.11, contiene una vulnerabilidad Cross-Site Request Forgery (CSRF) en dirmngr que puede resultar en CSRF controlado por el atacante, una divulgación de información o una denegación de servicio (DoS). El ataque parece ser explotable mediante una víctima que realice una petición WKD, por ejemplo, la introducción de una dirección de correo electrónico en la ventana "composer" de Thunderbird/Enigmail. La vulnerabilidad parece haber sido solucionada tras el commit con ID 4a4bb874f63741026bd26264c43bb32b1099f060.

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 (2)

Canonical — Ubuntu LinuxGnupg — Gnupg

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2018-1000858",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
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      ]
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  ],
  "published": "2018-12-20T17:29:00.457",
  "references": [
    {
      "url": "https://sektioneins.de/en/advisories/advisory-012018-gnupg-wkd.html",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://sektioneins.de/en/blog/18-11-23-gnupg-wkd.html",
      "tags": [
        "Third Party Advisory"
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      "source": "cve@mitre.org"
    },
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      "url": "https://usn.ubuntu.com/3853-1/",
      "tags": [
        "Third Party Advisory"
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      "source": "cve@mitre.org"
    },
    {
      "url": "https://sektioneins.de/en/advisories/advisory-012018-gnupg-wkd.html",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://sektioneins.de/en/blog/18-11-23-gnupg-wkd.html",
      "tags": [
        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-352"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "GnuPG version 2.1.12 - 2.2.11 contains a Cross ite Request Forgery (CSRF) vulnerability in dirmngr that can result in Attacker controlled CSRF, Information Disclosure, DoS. This attack appear to be exploitable via Victim must perform a WKD request, e.g. enter an email address in the composer window of Thunderbird/Enigmail. This vulnerability appears to have been fixed in after commit 4a4bb874f63741026bd26264c43bb32b1099f060."
    },
    {
      "lang": "es",
      "value": "GnuPG, de la versión 2.1.12 a la 2.2.11, contiene una vulnerabilidad Cross-Site Request Forgery (CSRF) en dirmngr que puede resultar en CSRF controlado por el atacante, una divulgación de información o una denegación de servicio (DoS). El ataque parece ser explotable mediante una víctima que realice una petición WKD, por ejemplo, la introducción de una dirección de correo electrónico en la ventana \"composer\" de Thunderbird/Enigmail. La vulnerabilidad parece haber sido solucionada tras el commit con ID 4a4bb874f63741026bd26264c43bb32b1099f060."
    }
  ],
  "lastModified": "2026-06-17T01:33:11.507",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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  "sourceIdentifier": "cve@mitre.org"
}