CVE-2021-26697 : Vulnerability Insights and Analysis
Discover the impact and mitigation strategies for CVE-2021-26697, a vulnerability in Apache Airflow 2.0.0 allowing unauthenticated access to lineage metadata.
Apache Airflow experienced a security issue where the lineage endpoint of the Experimental API in version 2.0.0 was not protected by authentication. This allowed unauthenticated users to access the endpoint, posing a low-severity risk that could expose DAG and Task metadata.
Understanding CVE-2021-26697
In this section, you will understand the details, impact, technical aspects, and mitigation steps related to CVE-2021-26697.
What is CVE-2021-26697?
The vulnerability in Apache Airflow exposed the lineage endpoint of the Experimental API without requiring authentication, enabling unauthorized access to certain metadata.
The Impact of CVE-2021-26697
This issue is categorized as low severity as it only allows attackers with specific knowledge to access limited information about DAGs and Tasks within Apache Airflow.
Technical Details of CVE-2021-26697
Let's delve into the technical specifics of the vulnerability in Apache Airflow version 2.0.0.
Vulnerability Description
The vulnerability arises from the lack of authentication controls on the lineage endpoint within the Experimental API of Apache Airflow 2.0.0.
Affected Systems and Versions
Apache Airflow version 2.0.0 is specifically impacted by this vulnerability due to the unprotected lineage endpoint in the Experimental API.
Exploitation Mechanism
Attackers need to possess knowledge of specific parameters to exploit this vulnerability, allowing them to extract metadata about DAGs and Tasks within Apache Airflow.
Mitigation and Prevention
To safeguard your Apache Airflow environment, it is crucial to implement immediate and long-term security measures.
Immediate Steps to Take
Administrators should restrict access to the Experimental API, review and monitor access logs, and apply necessary patches and updates.
Long-Term Security Practices
In the long run, it is essential to enforce a robust authentication mechanism, conduct regular security audits, and educate users on secure API usage.
Patching and Updates
Stay proactive in applying security patches released by Apache to address this vulnerability in Apache Airflow version 2.0.0.