gsd-2021-21687
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not check agent-to-controller access to create symbolic links when unarchiving a symbolic link in FilePath#untar.
Aliases
Aliases
CVE-2021-21687


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-21687",
    "description": "Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not check agent-to-controller access to create symbolic links when unarchiving a symbolic link in FilePath#untar.",
    "id": "GSD-2021-21687",
    "references": [
      "https://access.redhat.com/errata/RHSA-2021:4833",
      "https://access.redhat.com/errata/RHSA-2021:4829",
      "https://access.redhat.com/errata/RHSA-2021:4827",
      "https://access.redhat.com/errata/RHSA-2021:4801",
      "https://access.redhat.com/errata/RHSA-2021:4799",
      "https://security.archlinux.org/CVE-2021-21687"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-21687"
      ],
      "details": "Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not check agent-to-controller access to create symbolic links when unarchiving a symbolic link in FilePath#untar.",
      "id": "GSD-2021-21687",
      "modified": "2023-12-13T01:23:10.753510Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "jenkinsci-cert@googlegroups.com",
        "ID": "CVE-2021-21687",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Jenkins",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c=",
                          "version_name": "unspecified",
                          "version_value": "2.318"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Jenkins project"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not check agent-to-controller access to create symbolic links when unarchiving a symbolic link in FilePath#untar."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455",
            "refsource": "MISC",
            "url": "https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455"
          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "(,2.319)",
          "affected_versions": "All versions before 2.319",
          "cvss_v2": "AV:N/AC:L/Au:N/C:P/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-862",
            "CWE-937"
          ],
          "date": "2021-11-08",
          "description": "Jenkins does not check agent-to-controller access to create symbolic links when unarchiving a symbolic link in FilePath#untar.",
          "fixed_versions": [],
          "identifier": "CVE-2021-21687",
          "identifiers": [
            "CVE-2021-21687"
          ],
          "not_impacted": "",
          "package_slug": "maven/org.jenkins-ci.main/jenkins-core",
          "pubdate": "2021-11-04",
          "solution": "Unfortunately, there is no solution available yet.",
          "title": "Missing Authorization",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-21687",
            "https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455"
          ],
          "uuid": "42dd9ca7-681d-4ee0-aa64-86207fefc020"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.303.3",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.319",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "jenkinsci-cert@googlegroups.com",
          "ID": "CVE-2021-21687"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not check agent-to-controller access to create symbolic links when unarchiving a symbolic link in FilePath#untar."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-862"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 6.4,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 4.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.2
        }
      },
      "lastModifiedDate": "2023-11-22T21:17Z",
      "publishedDate": "2021-11-04T17:15Z"
    }
  }
}


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