GSD-2021-39935

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.5 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. Unauthorized external users could perform Server Side Requests via the CI Lint API
Aliases
Aliases
CVE-2021-39935
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{
  "GSD": {
    "alias": "CVE-2021-39935",
    "description": "An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.5 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. Unauthorized external users could perform Server Side Requests via the CI Lint API",
    "id": "GSD-2021-39935",
    "references": [
      "https://security.archlinux.org/CVE-2021-39935"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-39935"
      ],
      "details": "An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.5 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. Unauthorized external users could perform Server Side Requests via the CI Lint API",
      "id": "GSD-2021-39935",
      "modified": "2023-12-13T01:23:15.201571Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@gitlab.com",
        "ID": "CVE-2021-39935",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "GitLab",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003e=10.5, \u003c14.3.6"
                        },
                        {
                          "version_value": "\u003e=14.4, \u003c14.4.4"
                        },
                        {
                          "version_value": "\u003e=14.5, \u003c14.5.2"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "GitLab"
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "Thanks @minhli for reporting this vulnerability through our HackerOne bug bounty program"
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
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            "value": "An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.5 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. Unauthorized external users could perform Server Side Requests via the CI Lint API"
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Server-side request forgery (ssrf) in GitLab"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://gitlab.com/gitlab-org/gitlab/-/issues/346187",
            "refsource": "MISC",
            "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/346187"
          },
          {
            "name": "https://hackerone.com/reports/1236965",
            "refsource": "MISC",
            "url": "https://hackerone.com/reports/1236965"
          },
          {
            "name": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39935.json",
            "refsource": "CONFIRM",
            "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39935.json"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "14.3.6",
                "versionStartIncluding": "10.5.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "14.3.6",
                "versionStartIncluding": "10.5.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "14.4.4",
                "versionStartIncluding": "14.4.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "14.4.4",
                "versionStartIncluding": "14.4.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "14.5.2",
                "versionStartIncluding": "14.5.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "14.5.2",
                "versionStartIncluding": "14.5.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@gitlab.com",
          "ID": "CVE-2021-39935"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.5 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. Unauthorized external users could perform Server Side Requests via the CI Lint API"
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-918"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://hackerone.com/reports/1236965",
              "refsource": "MISC",
              "tags": [
                "Permissions Required",
                "Third Party Advisory"
              ],
              "url": "https://hackerone.com/reports/1236965"
            },
            {
              "name": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39935.json",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39935.json"
            },
            {
              "name": "https://gitlab.com/gitlab-org/gitlab/-/issues/346187",
              "refsource": "MISC",
              "tags": [
                "Broken Link"
              ],
              "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/346187"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2021-12-15T17:14Z",
      "publishedDate": "2021-12-13T16:15Z"
    }
  }
}


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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.