github - ghsa-6q4g-84f3-mw74

GHSA-6Q4G-84F3-MW74

Vulnerability from github – Published: 2022-05-24 19:16 – Updated: 2022-12-15 17:39

Summary

Improper handling of equivalent directory names on Windows in Jenkins

Details

Jenkins stores jobs and other entities on disk using their name shown on the UI as file and folder names.

On Windows, when specifying a file or folder with a trailing dot character (example.), the file or folder will be treated as if that character was not present (example). As both are legal names for jobs and other entities in Jenkins 2.314 and earlier, LTS 2.303.1 and earlier, this could allow users with the appropriate permissions to change or replace configurations of jobs and other entities.

Jenkins 2.315, LTS 2.303.2 does not allow names of jobs and other entities to end with a dot character.

Severity ?

6.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.314"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.jenkins-ci.main:jenkins-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.304"
            },
            {
              "fixed": "2.315"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.303.1"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.jenkins-ci.main:jenkins-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.303.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-21682"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-42"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-12-15T17:39:41Z",
    "nvd_published_at": "2021-10-06T23:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Jenkins stores jobs and other entities on disk using their name shown on the UI as file and folder names.\n\nOn Windows, when specifying a file or folder with a trailing dot character (`example.`), the file or folder will be treated as if that character was not present (`example`). As both are legal names for jobs and other entities in Jenkins 2.314 and earlier, LTS 2.303.1 and earlier, this could allow users with the appropriate permissions to change or replace configurations of jobs and other entities.\n\nJenkins 2.315, LTS 2.303.2 does not allow names of jobs and other entities to end with a dot character.",
  "id": "GHSA-6q4g-84f3-mw74",
  "modified": "2022-12-15T17:39:41Z",
  "published": "2022-05-24T19:16:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21682"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jenkinsci/jenkins/commit/c2c2b59071265aea07f88d5e95297c0a433921c3"
    },
    {
      "type": "WEB",
      "url": "https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2424"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2021/10/06/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Improper handling of equivalent directory names on Windows in Jenkins"
}

CVE-2021-21682 (GCVE-0-2021-21682)

Vulnerability from cvelistv5 – Published: 2021-10-06 22:10 – Updated: 2024-08-03 18:23

Summary

Jenkins 2.314 and earlier, LTS 2.303.1 and earlier accepts names of jobs and other entities with a trailing dot character, potentially replacing the configuration and data of other entities on Windows.

Severity ?

No CVSS data available.

Assigner

jenkins

References

URL

Tags

	https://www.jenkins.io/security/advisory/2021-10-…	x_refsource_CONFIRM
	http://www.openwall.com/lists/oss-security/2021/10/06/1	mailing-listx_refsource_MLIST

Impacted products

	Vendor	Product	Version
	Jenkins project	Jenkins	Affected: unspecified , ≤ 2.314 (custom) Affected: unspecified , ≤ LTS 2.303.1 (custom)

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:23:28.256Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2424"
          },
          {
            "name": "[oss-security] 20211006 Multiple vulnerabilities in Jenkins and Jenkins plugins",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/10/06/1"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Jenkins",
          "vendor": "Jenkins project",
          "versions": [
            {
              "lessThanOrEqual": "2.314",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "LTS 2.303.1",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Jenkins 2.314 and earlier, LTS 2.303.1 and earlier accepts names of jobs and other entities with a trailing dot character, potentially replacing the configuration and data of other entities on Windows."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-10-24T15:51:52.559Z",
        "orgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b",
        "shortName": "jenkins"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2424"
        },
        {
          "name": "[oss-security] 20211006 Multiple vulnerabilities in Jenkins and Jenkins plugins",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/10/06/1"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "jenkinsci-cert@googlegroups.com",
          "ID": "CVE-2021-21682",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Jenkins",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c=",
                            "version_value": "2.314"
                          },
                          {
                            "version_affected": "\u003c=",
                            "version_value": "LTS 2.303.1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Jenkins project"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Jenkins 2.314 and earlier, LTS 2.303.1 and earlier accepts names of jobs and other entities with a trailing dot character, potentially replacing the configuration and data of other entities on Windows."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-42: Path Equivalence: \u0027filename.\u0027 (Trailing Dot)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2424",
              "refsource": "CONFIRM",
              "url": "https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2424"
            },
            {
              "name": "[oss-security] 20211006 Multiple vulnerabilities in Jenkins and Jenkins plugins",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2021/10/06/1"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b",
    "assignerShortName": "jenkins",
    "cveId": "CVE-2021-21682",
    "datePublished": "2021-10-06T22:10:11",
    "dateReserved": "2021-01-04T00:00:00",
    "dateUpdated": "2024-08-03T18:23:28.256Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-6Q4G-84F3-MW74

CVE-2021-21682 (GCVE-0-2021-21682)

Tags

Sightings

Nomenclature