// For flags

CVE-2024-41942

JupyterHub has a privilege escalation vulnerability with the `admin:users` scope

Severity Score

7.2
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-07-24 CVE Reserved
  • 2024-08-08 CVE Published
  • 2024-08-08 CVE Updated
  • 2024-08-13 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-274: Improper Handling of Insufficient Privileges
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Jupyterhub
Search vendor "Jupyterhub"
Jupyterhub
Search vendor "Jupyterhub" for product "Jupyterhub"
< 4.1.6
Search vendor "Jupyterhub" for product "Jupyterhub" and version " < 4.1.6"
en
Affected
Jupyterhub
Search vendor "Jupyterhub"
Jupyterhub
Search vendor "Jupyterhub" for product "Jupyterhub"
>= 5.0.0 < 5.1.0
Search vendor "Jupyterhub" for product "Jupyterhub" and version " >= 5.0.0 < 5.1.0"
en
Affected