CVE-2023-42663 : Security Advisory and Response

Apache Airflow, versions before 2.7.2, has a vulnerability that allows an authorized user to read information about task instances in other DAGs without the required permissions. Users are advised to upgrade to version 2.7.2 or newer to mitigate this risk.

Understanding CVE-2023-42663

This CVE affects Apache Airflow, specifically versions prior to 2.7.2, and poses a security risk by allowing unauthorized access to task instance information.

What is CVE-2023-42663?

CVE-2023-42663 is a vulnerability in Apache Airflow that enables an authorized user to view task instances of other DAGs without the necessary permissions, compromising data confidentiality.

The Impact of CVE-2023-42663

The impact of this vulnerability is significant as it allows privileged information exposure, potentially leading to unauthorized access to sensitive data and compromising data integrity.

Technical Details of CVE-2023-42663

Apache Airflow version 2.7.2 and newer address the vulnerability that enables unauthorized users to bypass permission verification and access task instances across different DAGs.

Vulnerability Description

The vulnerability in Apache Airflow allows an authorized user to read information about task instances in DAGs they do not have proper access to, potentially leading to data leakage.

Affected Systems and Versions

This vulnerability affects Apache Airflow versions prior to 2.7.2, leaving systems running on these versions susceptible to unauthorized data access.

Exploitation Mechanism

Exploiting this vulnerability requires an authorized user with access to read specific DAGs only, who can then leverage this access to view information about task instances in other DAGs.

Mitigation and Prevention

Users of Apache Airflow are strongly advised to take immediate action to mitigate the risks associated with CVE-2023-42663.

Immediate Steps to Take

Upgrade Apache Airflow to version 2.7.2 or a newer release as soon as possible to prevent unauthorized access to task instance information across different DAGs.

Long-Term Security Practices

Implement strict access control measures, regularly update software, and monitor for any unusual activity to enhance the overall security posture of Apache Airflow installations.

Patching and Updates

Stay informed about security patches and updates released by Apache Software Foundation to address vulnerabilities like CVE-2023-42663 and ensure timely application of these patches.