QID 730207

Date Published: 2021-09-23

QID 730207: Apache Zeppelin Unauthenticated Websocket Vulnerability

Apache Zeppelin is a web-based notebook that enables data-driven, interactive data analytics and collaborative documents with SQL, Scala, Python, R and more.

The configuration settings on Zeppelin API are not updated when I change the zeppelin-site.xml or shiro.ini file and Zeppelin restarted when one open "configuration" on the Zeppelin Server, they still find zeppelin.anonymous.allowed set to true instead of false as set in the zeppelin-site.xml. There's also no login window, it opens as anonymous.
Removing/disabling `zeppelin.anonymous.allowed` when Shiro is configured is the solution. So, when Shiro is configured then Zeppelin server runs with all the auth configured, and if the user wants anonymous access then they should not configure Shiro.ini.
zeppelin.anonymous.allowed removed in 0.9.0.This issue affects Apache Zeppelin Apache Zeppelin any version prior to 0.9.0

Affected Versions:
Apache Zeppelin version prior to 0.9.0

QID Detection Logic (Unauthenticated):
This QID checks for vulnerable version of Apache Zeppelin by sending a GET request to /api/version endpoint .

Successful exploitation of the vulnerability may lead to complete system compromise

CVSS V3 rated as Critical - 9.4 severity.

CVSS V2 rated as Critical - 9.7 severity.

Solution

Customers are advised to upgrade to version 0.9.0 or later, for more information refer here.

Vendor References

Apache Zeppelin Security Advisory - github.com/apache/zeppelin/pull/3554

CVEs related to QID 730207

Software Advisories

Advisory ID	Software	Component	Link
NA			zeppelin.apache.org/download.html

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