Overview
- Description
- JupyterHub is software that allows one to create a multi-user server for Jupyter notebooks. Prior to versions 4.1.6 and 5.1.0, if a user is granted the `admin:users` scope, they may escalate their own privileges by making themselves a full admin user. The impact is relatively small in that `admin:users` is already an extremely privileged scope only granted to trusted users. In effect, `admin:users` is equivalent to `admin=True`, which is not intended. Note that the change here only prevents escalation to the built-in JupyterHub admin role that has unrestricted permissions. It does not prevent users with e.g. `groups` permissions from granting themselves or other users permissions via group membership, which is intentional. Versions 4.1.6 and 5.1.0 fix this issue.
- Source
- security-advisories@github.com
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.2
- Impact score
- 5.9
- Exploitability score
- 1.2
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
Weaknesses
- nvd@nist.gov
- NVD-CWE-noinfo
- security-advisories@github.com
- CWE-274
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:jupyter:jupyterhub:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "002EDC18-1058-456D-B6B2-4AD1D26C6B99",
"versionEndExcluding": "4.1.6"
},
{
"criteria": "cpe:2.3:a:jupyter:jupyterhub:5.0.0:-:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EFC74618-2D13-47F3-91EF-11F37A529FC2"
},
{
"criteria": "cpe:2.3:a:jupyter:jupyterhub:5.0.0:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "33EB4391-3E1B-45A3-8372-FAA589C2E9FD"
},
{
"criteria": "cpe:2.3:a:jupyter:jupyterhub:5.0.0:beta2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DCF7B9A9-7309-403F-97B7-C195AADA0822"
}
],
"operator": "OR"
}
]
}
]