National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-7206 Detail

Current 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.)

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 8.8 HIGH
Vector: AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (V3.0 legend)
Impact Score: 5.9
Exploitability Score: 2.8


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 6.5 MEDIUM
Vector: (AV:N/AC:L/Au:S/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 8.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): Single
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://blog.jupyter.org/security-fix-for-jupyterhub-gitlab-oauthenticator-7b14571d1f76 Third Party Advisory
https://github.com/jupyterhub/oauthenticator/blob/8499dc2/CHANGELOG.md#073---2018-02-16 Release Notes Vendor Advisory
https://github.com/jupyterhub/oauthenticator/commit/1845c0e4b1bff3462c91c3108c85205acd3c75a2 Patch

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/a:jupyter:oauthenticator:0.6.0::~~~gitlab~~
     Show Matching CPE(s)
 cpe:/a:jupyter:oauthenticator:0.6.1::~~~gitlab~~
     Show Matching CPE(s)
 cpe:/a:jupyter:oauthenticator:0.7.0::~~~gitlab~~
     Show Matching CPE(s)
 cpe:/a:jupyter:oauthenticator:0.7.1::~~~gitlab~~
     Show Matching CPE(s)
 cpe:/a:jupyter:oauthenticator:0.7.2::~~~gitlab~~
     Show Matching CPE(s)


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-7206
NVD Published Date:
02/17/2018
NVD Last Modified:
10/02/2019