ghsa-w2hv-rcqr-2h7r
Vulnerability from github
Published
2022-05-24 17:46
Modified
2022-12-13 16:47
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Summary
View name validation bypass in Jenkins
Details

Jenkins 2.286 and earlier, LTS 2.277.1 and earlier does not properly check that a newly created view has an allowed name. When a form to create a view is submitted, the name is included twice in the submission. One instance is validated, but the other instance is used to create the value.

This allows attackers with View/Create permission to create views with invalid or already-used names.

Jenkins 2.287, LTS 2.277.2 uses the same submitted value for validation and view creation.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.jenkins-ci.main:jenkins-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.277.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.286"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.jenkins-ci.main:jenkins-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.278"
            },
            {
              "fixed": "2.287"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-21640"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-240"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-06-23T06:49:47Z",
    "nvd_published_at": "2021-04-07T14:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Jenkins 2.286 and earlier, LTS 2.277.1 and earlier does not properly check that a newly created view has an allowed name. When a form to create a view is submitted, the name is included twice in the submission. One instance is validated, but the other instance is used to create the value.\n\nThis allows attackers with View/Create permission to create views with invalid or already-used names.\n\nJenkins 2.287, LTS 2.277.2 uses the same submitted value for validation and view creation.",
  "id": "GHSA-w2hv-rcqr-2h7r",
  "modified": "2022-12-13T16:47:01Z",
  "published": "2022-05-24T17:46:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21640"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jenkinsci/jenkins/commit/42e2c74049ddf5e0aca1fe6aadc7b24fdabb5494"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jenkinsci/jenkins"
    },
    {
      "type": "WEB",
      "url": "https://www.jenkins.io/security/advisory/2021-04-07/#SECURITY-1871"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2021/04/07/2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "View name validation bypass in Jenkins"
}


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