CVE-2021-38540 Information

Description

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.

CVSS Vector

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

Reference

https://lists.apache.org/thread.html/rb34c3dd1a815456355217eef34060789f771b6f77c3a3dec77de2064%40%3Cusers.airflow.apache.org%3E https://lists.apache.org/thread.html/rac2ed9118f64733e47b4f1e82ddc8c8020774698f13328ca742b03a2@%3Cannounce.apache.org%3E

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8