Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2024-03-06 10:58

Modified

2025-05-20 10:02

Summary

Apache Airflow: Variable Import endpoint missed authentication check

Details

The variable import endpoint was not protected by authentication in Airflow >=2.0.0, <2.1.3. This allowed unauthenticated users to hit that endpoint to add/modify Airflow variables used in DAGs, potentially resulting in a denial of service, information disclosure or remote code execution. This issue affects Apache Airflow >=2.0.0, <2.1.3.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "airflow",
        "purl": "pkg:bitnami/airflow"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.1.3"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-38540"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*"
    ],
    "severity": "Critical"
  },
  "details": "The variable import endpoint was not protected by authentication in Airflow \u003e=2.0.0, \u003c2.1.3. This allowed unauthenticated users to hit that endpoint to add/modify Airflow variables used in DAGs, potentially resulting in a denial of service, information disclosure or remote code execution. This issue affects Apache Airflow \u003e=2.0.0, \u003c2.1.3.",
  "id": "BIT-airflow-2021-38540",
  "modified": "2025-05-20T10:02:07.006Z",
  "published": "2024-03-06T10:58:56.460Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rac2ed9118f64733e47b4f1e82ddc8c8020774698f13328ca742b03a2%40%3Cannounce.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rb34c3dd1a815456355217eef34060789f771b6f77c3a3dec77de2064%40%3Cusers.airflow.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-38540"
    }
  ],
  "schema_version": "1.5.0",
  "summary": "Apache Airflow: Variable Import endpoint missed authentication check"
}

CVE-2021-38540 (GCVE-0-2021-38540)

Vulnerability from cvelistv5 – Published: 2021-09-09 15:05 – Updated: 2024-08-04 01:44

Title

Apache Airflow: Variable Import endpoint missed authentication check

Summary

Severity ?

No CVSS data available.

CWE

CWE-269 - Improper Privilege Management

Assigner

apache

References

URL

Tags

	https://lists.apache.org/thread.html/rb34c3dd1a81…	x_refsource_MISC
	https://lists.apache.org/thread.html/rac2ed9118f6…	mailing-listx_refsource_MLIST

Impacted products

	Vendor	Product	Version
	Apache Software Foundation	Apache Airflow	Affected: Apache Airflow , < 2.1.3 (custom)

Credits

Apache Airflow would like to thank Nathan Jones, National Australia Bank’s Offensive Security Team

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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        "providerMetadata": {
          "dateUpdated": "2024-08-04T01:44:23.448Z",
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          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://lists.apache.org/thread.html/rb34c3dd1a815456355217eef34060789f771b6f77c3a3dec77de2064%40%3Cusers.airflow.apache.org%3E"
          },
          {
            "name": "[announce] 20210909 CVE-2021-38540: Apache Airflow: Variable Import endpoint missed authentication check",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
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          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Apache Airflow",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "2.1.3",
              "status": "affected",
              "version": "Apache Airflow ",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Apache Airflow would like to thank Nathan Jones, National Australia Bank\u2019s Offensive Security Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The variable import endpoint was not protected by authentication in Airflow \u003e=2.0.0, \u003c2.1.3. This allowed unauthenticated users to hit that endpoint to add/modify Airflow variables used in DAGs, potentially resulting in a denial of service, information disclosure or remote code execution. This issue affects Apache Airflow \u003e=2.0.0, \u003c2.1.3."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-269",
              "description": "CWE-269 Improper Privilege Management",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-09-09T19:06:12",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
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      "references": [
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        },
        {
          "name": "[announce] 20210909 CVE-2021-38540: Apache Airflow: Variable Import endpoint missed authentication check",
          "tags": [
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            "x_refsource_MLIST"
          ],
          "url": "https://lists.apache.org/thread.html/rac2ed9118f64733e47b4f1e82ddc8c8020774698f13328ca742b03a2%40%3Cannounce.apache.org%3E"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Apache Airflow: Variable Import endpoint missed authentication check",
      "workarounds": [
        {
          "lang": "en",
          "value": "Upgrade to Apache Airflow \u003e=2.1.3"
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
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          "ASSIGNER": "security@apache.org",
          "ID": "CVE-2021-38540",
          "STATE": "PUBLIC",
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        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
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                      "product_name": "Apache Airflow",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_name": "Apache Airflow ",
                            "version_value": "2.1.3"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Apache Software Foundation"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Apache Airflow would like to thank Nathan Jones, National Australia Bank\u2019s Offensive Security Team"
          }
        ],
        "data_format": "MITRE",
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        "description": {
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            },
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  },
  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2021-38540",
    "datePublished": "2021-09-09T15:05:09",
    "dateReserved": "2021-08-11T00:00:00",
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  },
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}

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

Vulnerability from bitnami_vulndb

CVE-2021-38540 (GCVE-0-2021-38540)

Tags

Sightings

Nomenclature