CVE-2022-38170 : What You Need to Know

Apache Airflow prior to version 2.3.4 was found to have an overly permissive umask setting when running with the

--daemon

flag. This vulnerability could allow local users to expose arbitrary file contents via the webserver.

Understanding CVE-2022-38170

This CVE relates to an insecure umask configuration in Apache Airflow, potentially leading to a race condition and unauthorized access.

What is CVE-2022-38170?

In Apache Airflow prior to 2.3.4, an insecure umask was configured for numerous Airflow components when running with the

--daemon

flag, allowing local users to expose arbitrary file contents via the webserver.

The Impact of CVE-2022-38170

The vulnerability could result in world-writable files in the Airflow home directory, posing a risk of unauthorized data exposure.

Technical Details of CVE-2022-38170

This section outlines specific technical details of the CVE.

Vulnerability Description

The vulnerability stems from an overly permissive umask setting in Apache Airflow, potentially leading to unauthorized file access.

Affected Systems and Versions

Product: Apache Airflow
Vendor: Apache Software Foundation
Versions Affected: Apache Airflow <= 2.3.3

Exploitation Mechanism

Local users could exploit the insecure umask setting when running Airflow with the

--daemon

flag to access arbitrary file contents via the webserver.

Mitigation and Prevention

To address CVE-2022-38170, consider the following mitigation strategies.

Immediate Steps to Take

It is recommended to run Apache Airflow without the

--daemon

flag by utilizing a process supervisor like systemd or runit.

Long-Term Security Practices

Implement secure umask configurations and regularly monitor and audit file permissions to prevent unauthorized access.

Patching and Updates

Ensure that you update Apache Airflow to version 2.3.4 or newer to mitigate the vulnerability.