CVE-2018-7206

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.)

How to fix CVE-2018-7206

To remediate CVE-2018-7206, upgrade the affected package to a fixed version below.

• —upgrade to 0.6.2 or later
• —upgrade to 1845c0e4b1bff3462c91c3108c85205acd3c75a2 or later

Is CVE-2018-7206 being exploited?

Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• >= 0.6, < 0.6.2
• from 0, < 1845c0e4b1bff3462c91c3108c85205acd3c75a2 | >= 0.6, < 0.6.2, >= 0.7, < 0.7.3

CVSS scores

References (8)

• ADVISORYgithub.com/advisories/GHSA-8x3m-m3x9-54fj
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2018-7206
• PATCHgithub.com/jupyterhub/oauthenticator
• WEBblog.jupyter.org/security-fix-for-jupyterhub-gitlab-oauthenticator-7b14571d1f76