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CVE-2021-21620

Estado: ModificadaMedia (4.3)—

A cross-site request forgery (CSRF) vulnerability in Jenkins Claim Plugin 2.18.1 and earlier allows attackers to change claims.

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)

Jenkins — Claim

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-21620",
  "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:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "jenkinsci-cert@googlegroups.com",
      "affectedData": [
        {
          "vendor": "Jenkins project",
          "product": "Jenkins Claim Plugin",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom",
              "lessThanOrEqual": "2.18.1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-02-24T16:15:15.053",
  "references": [
    {
      "url": "https://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2188%20%282%29",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "jenkinsci-cert@googlegroups.com"
    },
    {
      "url": "https://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2188%20%282%29",
      "tags": [
        "Vendor Advisory"
      ],
      "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": "A cross-site request forgery (CSRF) vulnerability in Jenkins Claim Plugin 2.18.1 and earlier allows attackers to change claims."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de tipo cross-site request forgery (CSRF) en Jenkins Claim Plugin versiones 2.18.1 y anteriores, permite a atacantes cambiar las reclamaciones"
    }
  ],
  "lastModified": "2026-06-17T03:35:53.127",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:jenkins:claim:*:*:*:*:*:jenkins:*:*",
              "vulnerable": true,
              "matchCriteriaId": "105987B5-7F1D-4619-B2B8-94ECCDD68D9F",
              "versionEndIncluding": "2.18.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "jenkinsci-cert@googlegroups.com"
}