Podatność CVE-2021-41194


Publikacja: 2021-10-28

Opis:
FirstUseAuthenticator is a JupyterHub authenticator that helps new users set their password on their first login to JupyterHub. When JupyterHub is used with FirstUseAuthenticator, a vulnerability in versions prior to 1.0.0 allows unauthorized access to any user's account if `create_users=True` and the username is known or guessed. One may upgrade to version 1.0.0 or apply a patch manually to mitigate the vulnerability. For those who cannot upgrade, there is no complete workaround, but a partial mitigation exists. One can disable user creation with `c.FirstUseAuthenticator.create_users = False`, which will only allow login with fully normalized usernames for already existing users prior to jupyterhub-firstuserauthenticator 1.0.0. If any users have never logged in with their normalized username (i.e. lowercase), they will still be vulnerable until a patch or upgrade occurs.

Typ:

NVD-CWE-noinfo

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

Ogólna skala CVSS
Znaczenie
Łatwość wykorzystania
6.8/10
6.4/10
8.6/10
Wymagany dostęp
Złożoność ataku
Autoryzacja
Zdalny
Średnia
Nie wymagana
Wpływ na poufność
Wpływ na integralność
Wpływ na dostępność
Częściowy
Częściowy
Częściowy
Affected software
Jupyterhub -> First use authenticator 

 Referencje:
https://github.com/jupyterhub/firstuseauthenticator/pull/38.patch
https://github.com/jupyterhub/firstuseauthenticator/security/advisories/GHSA-5xvc-vgmp-jgc3
https://github.com/jupyterhub/firstuseauthenticator/pull/38

Copyright 2024, cxsecurity.com

 

Back to Top