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CVE-2020-13927

Status Candidate

Overview

The previous default setting for Airflow's Experimental API was to allow all API requests without authentication, but this poses security risks to users who miss this fact. From Airflow 1.10.11 the default has been changed to deny all requests by default and is documented at https://airflow.apache.org/docs/1.10.11/security.html#api-authentication. Note this change fixes it for new installs but existing users need to change their config to default `[api]auth_backend = airflow.api.auth.backend.deny_all` as mentioned in the Updating Guide: https://github.com/apache/airflow/blob/1.10.11/UPDATING.md#experimental-api-will-deny-all-request-by-default

Related Files

Apache Airflow 1.10.10 Remote Code Execution
Posted Sep 19, 2023
Authored by Pepe Berba, Ismail E. Dawoodjee, xuxiang | Site metasploit.com

This Metasploit module exploits an unauthenticated command injection vulnerability by combining two critical vulnerabilities in Apache Airflow version 1.10.10. The first, CVE-2020-11978, is an authenticated command injection vulnerability found in one of Airflow's example DAGs, "example_trigger_target_dag", which allows any authenticated user to run arbitrary OS commands as the user running Airflow Worker/Scheduler. The second, CVE-2020-13927, is a default setting of Airflow 1.10.10 that allows unauthenticated access to Airflow's Experimental REST API to perform malicious actions such as creating the vulnerable DAG above. The two CVEs taken together allow vulnerable DAG creation and command injection, leading to unauthenticated remote code execution.

tags | exploit, remote, arbitrary, vulnerability, code execution
advisories | CVE-2020-11978, CVE-2020-13927
SHA-256 | bb3e8db54407d69676a1eba8103ab6fd9b1a3d72a85765a5ca4067e046a3ef88
Apache Airflow 1.10.10 Remote Code Execution
Posted Jun 2, 2021
Authored by Pepe Berba

Apache Airflow versions 1.10.10 and below suffer from a remote code execution vulnerability.

tags | exploit, remote, code execution
advisories | CVE-2020-11978, CVE-2020-13927
SHA-256 | 90db73d06b832da1bd29f51da3759ba49ca9bf6dfbf04ca45ce41c9ce588afdc
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