cve/2021/CVE-2021-38540.md

### [CVE-2021-38540](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38540)
![](https://img.shields.io/static/v1?label=Product&message=Apache%20Airflow&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=Apache%20Airflow%20%3C%202.1.3%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-269%20Improper%20Privilege%20Management&color=brighgreen)

### 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.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/ARPSyndicate/kenzer-templates
- https://github.com/Captain-v-hook/PoC-for-CVE-2021-38540-
- https://github.com/NaInSec/CVE-PoC-in-GitHub
- https://github.com/SYRTI/POC_to_review
- https://github.com/WhooAmii/POC_to_review
- https://github.com/nomi-sec/PoC-in-GitHub
- https://github.com/trhacknon/Pocingit
- https://github.com/zecool/cve