Vulnerability identifier: #VU49123

Vulnerability risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-17526

CWE-ID: CWE-798

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache Airflow
Web applications / Modules and components for CMS

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to gain full access to vulnerable application.

The vulnerability exists due to Apache Airflow relies on session management based on the default [webserver] secret_key value. A remote attacker, who successfully authenticated at one website can re-use the same session to authenticate on another unrelated website, if both web servers are configured with the default [webserver] secret_key value.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Airflow: 1.0.0 - 1.10.13

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External links
http://www.openwall.com/lists/oss-security/2020/12/21/1
http://lists.apache.org/thread.html/rbeeb73a6c741f2f9200d83b9c2220610da314810c4e8c9cf881d47ef%40%3Cusers.airflow.apache.org%3E

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.