Vulnerability Details CVE-2018-7206
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.)
Exploit prediction scoring system (EPSS) score
EPSS Score 0.007
EPSS Ranking 70.8%
CVSS Severity
CVSS v3 Score 8.8
CVSS v2 Score 6.5
References
- https://blog.jupyter.org/security-fix-for-jupyterhub-gitlab-oauthenticator-7b14571d1f76
- https://github.com/jupyterhub/oauthenticator/blob/8499dc2/CHANGELOG.md#073---2018-02-16
- https://github.com/jupyterhub/oauthenticator/commit/1845c0e4b1bff3462c91c3108c85205acd3c75a2
- https://blog.jupyter.org/security-fix-for-jupyterhub-gitlab-oauthenticator-7b14571d1f76
- https://github.com/jupyterhub/oauthenticator/blob/8499dc2/CHANGELOG.md#073---2018-02-16
- https://github.com/jupyterhub/oauthenticator/commit/1845c0e4b1bff3462c91c3108c85205acd3c75a2
Products affected by CVE-2018-7206
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cpe:2.3:a:jupyter:oauthenticator:0.6.0
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cpe:2.3:a:jupyter:oauthenticator:0.6.1
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cpe:2.3:a:jupyter:oauthenticator:0.7.0
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cpe:2.3:a:jupyter:oauthenticator:0.7.1
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cpe:2.3:a:jupyter:oauthenticator:0.7.2