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Date: Wed, 24 Jan 2024 11:06:28 +0000
From: Ephraim Anierobi <ephraimanierobi@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2023-51702: Apache Airflow CNCF Kubernetes provider, Apache
Airflow: Kubernetes configuration file saved without encryption in the
Metadata and logged as plain text in the Triggerer service
Severity: moderate
Affected versions:
- Apache Airflow CNCF Kubernetes provider 5.2.0 before 7.0.0
- Apache Airflow 2.3.0 before 2.6.1
Description:
Since version 5.2.0, when using deferrable mode with the path of a Kubernetes configuration file for authentication, the Airflow worker serializes this configuration file as a dictionary and sends it to the triggerer by storing it in metadata without any encryption. Additionally, if used with an Airflow version between 2.3.0 and 2.6.0, the configuration dictionary will be logged as plain text in the triggerer service without masking. This allows anyone with access to the metadata or triggerer log to obtain the configuration file and use it to access the Kubernetes cluster.
This behavior was changed in version 7.0.0, which stopped serializing the file contents and started providing the file path instead to read the contents into the trigger. Users are recommended to upgrade to version 7.0.0, which fixes this issue.
Credit:
Hussein Awala (finder)
Hussein Awala (remediation developer)
References:
https://github.com/apache/airflow/pull/29498
https://github.com/apache/airflow/pull/30110
https://github.com/apache/airflow/pull/36492
https://airflow.apache.org/
https://www.cve.org/CVERecord?id=CVE-2023-51702
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