Apache Airflow: Multiple vulnerabilities

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                         ZMCIRT Vulnerability Bulletin

                             ZMC-2021.08.16.1500
                     Apache Airflow: Multiple vulnerabilities
                               16th August 2021

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Product:           Apache Airflow
Publisher:         Apache Software Foundation
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Access Confidential Data -- Unknown/Unspecified
                   Reduced Security         -- Unknown/Unspecified
Resolution:        Mitigation
CVE Names:         CVE-2021-35936  

Original Bulletin: 
   https://mail-archives.apache.org/mod_mbox/www-announce/202108.mbox/%3Cd998842d-fdb2-8f73-ca56-aaa43d55d057%40apache.org%3E


Description:

If remote logging is not used, the worker (in the case of CeleryExecutor) =
or the scheduler (in the case of LocalExecutor) runs a Flask logging server=
 and is listening on a specific port and also binds on 0.0.0.0 by default.
This logging server had no authentication and allows reading log files of =
DAG jobs.

This issue affects Apache Airflow  2.1.2.

Mitigation:

Use remote logging with GCS, S3, Elasticsearch etc. This is recommended for=
 production environments.

And do not publicly expose any other ports apart from Webserver port, =
Flower port etc.

Credit:

Apache Airflow would like to thank Dolev Farhi for reporting this issue.



 
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in this document is accurate.  However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
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the responsibility of each user or organisation, and should be considered in
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takes no responsibility for consequences which may arise from following or
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