#VU103634 Improper privilege management in jupyterhub - CVE-2024-41942

Vulnerability identifier: #VU103634

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2024-41942

CWE-ID: CWE-269

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
jupyterhub
Other software / Other software solutions

Vendor: jupyterhub

Description

The vulnerability allows a remote privileged user to escalate privileges.

The vulnerability exists due to `admin:users` is equivalent to `admin=True`, which is not intended. A remote privileged user can escalate their own privileges by making themselves a full admin user

Mitigation
Install updates from vendor's website.

Vulnerable software versions

jupyterhub: before 4.1.6

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External links
https://github.com/jupyterhub/jupyterhub/security/advisories/GHSA-9x4q-3gxw-849f
https://github.com/jupyterhub/jupyterhub/commit/99e2720b0fc626cbeeca3c6337f917fdacfaa428
https://github.com/jupyterhub/jupyterhub/commit/ff2db557a85b6980f90c3158634bf924063ab8ba

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.