On November 21, NSFOCUS CERT discovered on Internet a PoC of a remote code execution vulnerability (CVE-2022-40127) in Apache Airflow. Due to the flaw in Example Dags in Apache Airflow, an attacker with UI access rights can use this vulnerability to trigger Dags, and then by manually providing the run_id parameter, attacker can execute arbitrary commands on the target system. The CVSS score is 8.8, relevant users are requested to take protective measures as soon as possible.
Apache Airflow is a distributed task scheduling platform with visualization that provides workflow orchestration based on DAG (Directed Acyclic Graph).
Scope of Impact
Apache Airflow < 2.4.0
Apache Airflow >= 2.4.0
At present, the official security version has been released to fix this vulnerability. It is recommended that affected users upgrade their protection in time: https://github.com/apache/airflow/releases
Note: In order to prevent accidents, it is recommended to do a data backup before upgrading.
Access to the Airflow platform can be restricted without affecting business.
This advisory is only used to describe a potential risk. NSFOCUS does not provide any commitment or promise on this advisory. NSFOCUS and the author will not bear any liability for any direct and/or indirect consequences and losses caused by transmitting and/or using this advisory. NSFOCUS reserves all the rights to modify and interpret this advisory. Please include this statement paragraph when reproducing or transferring this advisory. Do not modify this advisory, add/delete any information to/from it, or use this advisory for commercial purposes without permission from NSFOCUS.
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