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CVE-2015-8626

Estado: ModificadaCrítica (9.8)—

La función User::randomPassword en MediaWiki en versiones anteriores a 1.23.12, 1.24.x en versiones anteriores a 1.24.5, 1.25.x en versiones anteriores a 1.25.4 y 1.26.x en versiones anteriores a 1.26.1 genera contraseñas más pequeñas que $wgMinimalPasswordLength, lo que hace más fácil a atacantes remotos eludir restricciones destinadas al acceso a través de un ataque de fuerza bruta.

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 (1)

Mediawiki — Mediawiki

CWE

Referencias

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{
  "id": "CVE-2015-8626",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-03-23T20:59:00.610",
  "references": [
    {
      "url": "http://www.openwall.com/lists/oss-security/2015/12/21/8",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2015/12/23/7",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-December/000186.html",
      "tags": [
        "Patch",
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://phabricator.wikimedia.org/T115522",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2015/12/21/8",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2015/12/23/7",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-December/000186.html",
      "tags": [
        "Patch",
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://phabricator.wikimedia.org/T115522",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-255"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The User::randomPassword function in MediaWiki before 1.23.12, 1.24.x before 1.24.5, 1.25.x before 1.25.4, and 1.26.x before 1.26.1 generates passwords smaller than $wgMinimalPasswordLength, which makes it easier for remote attackers to obtain access via a brute-force attack."
    },
    {
      "lang": "es",
      "value": "La función User::randomPassword en MediaWiki en versiones anteriores a 1.23.12, 1.24.x en versiones anteriores a 1.24.5, 1.25.x en versiones anteriores a 1.25.4 y 1.26.x en versiones anteriores a 1.26.1 genera contraseñas más pequeñas que $wgMinimalPasswordLength, lo que hace más fácil a atacantes remotos eludir restricciones destinadas al acceso a través de un ataque de fuerza bruta."
    }
  ],
  "lastModified": "2026-06-17T00:34:52.733",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3971880B-BD50-4E3D-96F0-D07F60D59923",
              "versionEndIncluding": "1.23.11"
            },
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:1.24.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0B21EB21-AE87-48BF-B4A1-5E63A2E116B4"
            },
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:1.24.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A6C00423-B3FE-485A-9014-22F409DBD377"
            },
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:1.24.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E90C95FB-71CA-4CA1-935D-58A08244A81F"
            },
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:1.24.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5DDBD41F-C2D5-4D7C-B069-FBC2C8EBB81C"
            },
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:1.24.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D92AA40C-3E9A-44E6-9833-06853B5BF453"
            },
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:1.25.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9129F374-93CB-43CE-A3B2-DB6483514F32"
            },
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:1.25.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CE125142-10A2-4ACF-9BA4-44E63C1E5DB6"
            },
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:1.25.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DF21D6EE-CEAC-42A7-99B6-D9D033E1FEC6"
            },
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:1.25.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6CCAC6ED-C3F5-4D8E-922B-FAA481210C6A"
            },
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:1.26.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7B418525-DAC2-461A-B931-BED05CC3AFBF"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}