CVE-2018-1317: Improper Authentication in Apache Zeppelin
Summary
CVE-2018-1317: Improper Authentication in Apache Zeppelin. Affects org.apache.zeppelin:zeppelin versions < 0.8.0. Fixed in 0.8.0. How to fix ↓
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Background
Apache Zeppelin is an open-source web-based notebook that enables interactive data analytics and collaborative data science. It allows users to create and share documents that contain live code, equations, visualizations, and narrative text. The cron scheduler in Apache Zeppelin prior to version 0.8.0 was enabled by default, which could potentially allow users to run paragraphs as other users without authentication.
Vulnerability Detail
The vulnerability (CVE-2018-1317) in Apache Zeppelin arises from the default enabled cron scheduler, which allows unauthorized users to execute paragraphs as different users without proper authentication. This can lead to privilege escalation and unauthorized access to sensitive information. The vulnerability has a CVSS score of 8.8, indicating a high severity level.
How To Fix
Latest published version: 0.12.1 as of 22 Oct 2026
Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
0.8.0
This is the first release that contains the fix.
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Workaround
As a temporary workaround, users can manually disable the cron scheduler in Apache Zeppelin prior to version 0.8.0. This can be done by modifying the configuration file to set the 'zeppelin.cron.enable' property to 'false'. However, it is strongly advised to upgrade to the latest version to ensure complete mitigation of the vulnerability.
Conclusion
In conclusion, the vulnerability (CVE-2018-1317) in Apache Zeppelin allows unauthorized users to execute paragraphs as different users without proper authentication. To mitigate this vulnerability, it is crucial to upgrade to Apache Zeppelin version 0.8.0 or later, which disables the cron scheduler by default. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
Apache Zeppelin is an open-source web-based notebook that enables interactive data analytics and collaborative data science.
The vulnerability allows unauthorized users to execute paragraphs as different users without proper authentication, potentially leading to privilege escalation and unauthorized access to sensitive information.
The CVSS score of this vulnerability is 8.8, indicating a high severity level.
To fix this vulnerability, it is recommended to upgrade to Apache Zeppelin version 0.8.0 or later, which disables the cron scheduler by default.
As a temporary workaround, users can manually disable the cron scheduler by modifying the configuration file. However, upgrading to the latest version is strongly advised.
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