{
  "id": "CVE-2021-21640",
  "sourceIdentifier": "jenkinsci-cert@googlegroups.com",
  "published": "2021-04-07T14:15:17.017",
  "lastModified": "2021-04-13T18:00:15.817",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "Jenkins 2.286 and earlier, LTS 2.277.1 and earlier does not properly check that a newly created view has an allowed name, allowing attackers with View/Create permission to create views with invalid or already-used names."
    },
    {
      "lang": "es",
      "value": "Jenkins 2.286 y versiones anteriores, LTS versiones 2.277.1 y anteriores, no comprueban apropiadamente a una visualizaci\u00f3n reci\u00e9n dise\u00f1ada tener un nombre permitido, permitiendo a atacantes con permiso de View/Create crear visualizaciones con nombres no v\u00e1lidos o ya usados"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "SINGLE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "NONE",
          "baseScore": 4.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "jenkinsci-cert@googlegroups.com",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-240"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*",
              "versionEndIncluding": "2.277.1",
              "matchCriteriaId": "A6C9D710-02B7-4F94-BACA-70D67286F99B"
            },
            {
              "vulnerable": true,
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  ],
  "references": [
    {
      "url": "http://www.openwall.com/lists/oss-security/2021/04/07/2",
      "source": "jenkinsci-cert@googlegroups.com",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.jenkins.io/security/advisory/2021-04-07/#SECURITY-1871",
      "source": "jenkinsci-cert@googlegroups.com",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}