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CVE-2018-7206

8.8 · HIGH

An issue was discovered in Project Jupyter JupyterHub OAuthenticator 0.6.x before 0.6.2 and 0.7.x before 0.7.3.

Published Feb 18, 2018EPSS 1.77%

Overview

CVE-2018-7206 is a high-severity vulnerability. It was published on February 18, 2018 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

An issue was discovered in Project Jupyter JupyterHub OAuthenticator 0.6.x before 0.6.2 and 0.7.x before 0.7.3. When using JupyterHub with GitLab group whitelisting for access control, group membership was not checked correctly, allowing members not in the whitelisted groups to create accounts on the Hub. (Users were not allowed to access other users' accounts, but could create their own accounts on the Hub linked to their GitLab account. GitLab authentication not using gitlab_group_whitelist is unaffected. No other Authenticators are affected.)

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

Refblog.jupyter.org/security-fix-for-jupyterhub-gitlab-oauthenticator-7b14571d1f76GitHubgithub.com/jupyterhub/oauthenticator/blob/8499dc2/CHANGELOG.md#073---2018-02-16GitHubgithub.com/jupyterhub/oauthenticator/commit/1845c0e4b1bff3462c91c3108c85205acd3c75a2Refblog.jupyter.org/security-fix-for-jupyterhub-gitlab-oauthenticator-7b14571d1f76GitHubgithub.com/jupyterhub/oauthenticator/blob/8499dc2/CHANGELOG.md#073---2018-02-16GitHubgithub.com/jupyterhub/oauthenticator/commit/1845c0e4b1bff3462c91c3108c85205acd3c75a2

How CyberStrike helps

Frequently asked questions

What is CVE-2018-7206?

CVE-2018-7206 is a high-severity vulnerability. It was published on February 18, 2018 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2018-7206?

This vulnerability has a CVSS 3.1 base score of 8.8, 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-2018-7206?

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-2018-7206?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-7206 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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