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CVE-2020-17526

7.7 · HIGH

Incorrect Session Validation in Apache Airflow Webserver versions prior to 1.10.14 with default config allows a malicious airflow user on site A where they log in normally, to access unauthorized A…

Published Dec 21, 2020EPSS 23.86%

Overview

CVE-2020-17526 is a high-severity vulnerability. It was published on December 21, 2020 and has a CVSS 3.1 base score of 7.7 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Incorrect Session Validation in Apache Airflow Webserver versions prior to 1.10.14 with default config allows a malicious airflow user on site A where they log in normally, to access unauthorized Airflow Webserver on Site B through the session from Site A. This does not affect users who have changed the default value for `[webserver] secret_key` config.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.openwall.com/lists/oss-security/2020/12/21/1Reflists.apache.org/thread.html/r466759f377651f0a690475d5a52564d0e786e82c08d5a5730a4f8352%40%3Cannounce.apache.org%3EReflists.apache.org/thread.html/rbeeb73a6c741f2f9200d83b9c2220610da314810c4e8c9cf881d47ef%40%3Cusers.airflow.apache.org%3ERefwww.openwall.com/lists/oss-security/2020/12/21/1Reflists.apache.org/thread.html/r466759f377651f0a690475d5a52564d0e786e82c08d5a5730a4f8352%40%3Cannounce.apache.org%3EReflists.apache.org/thread.html/rbeeb73a6c741f2f9200d83b9c2220610da314810c4e8c9cf881d47ef%40%3Cusers.airflow.apache.org%3E

How CyberStrike helps

Frequently asked questions

What is CVE-2020-17526?

CVE-2020-17526 is a high-severity vulnerability. It was published on December 21, 2020 and has a CVSS 3.1 base score of 7.7 (HIGH).

How severe is CVE-2020-17526?

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2020-17526?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-17526?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-17526 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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