Vulnerability · Published Jun 12, 2024 · Assigned by GitHub_M
CVE-2024-37300Globus `identity_provider` restriction ignored when used with `allow_all` in JupyterHub 5.0
High 8.1
In plain English
A high-severity incorrect authorization in oauthenticator from jupyterhub. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
OAuthenticator is software that allows OAuth2 identity providers to be plugged in and used with JupyterHub. JupyterHub < 5.0, when used with `GlobusOAuthenticator`, could be configured to allow all users from a particular institution only. This worked fine prior to JupyterHub 5.0, because `allow_all` did not take precedence over `identity_provider`. Since JupyterHub 5.0, `allow_all` does take precedence over `identity_provider`. On a hub with the same config, now all users will be allowed to login, regardless of `identity_provider`. `identity_provider` will basically be ignored. This is a documented change in JupyterHub 5.0, but is likely to catch many users by surprise. OAuthenticator 16.3.1 fixes the issue with JupyterHub 5.0, and does not affect previous versions. As a workaround, do not upgrade to JupyterHub 5.0 when using `GlobusOAuthenticator` in the prior configuration.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | oauthenticator | 16.3.1 | GHSA-gprj-3p75-f996 |
| PyPI | oauthenticator | 16.3.1 | PYSEC-2026-1711 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| jupyterhub | oauthenticator | < 16.3.1 |
Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
References
- https://github.com/jupyterhub/oauthenticator/security/advisories/GHSA-gprj-3p75-f996 x_refsource_CONFIRM
- https://github.com/jupyterhub/oauthenticator/commit/d1aea05fa89f2beae15ab0fa0b0d071030f79654 x_refsource_MISC
- https://jupyterhub.readthedocs.io/en/stable/howto/upgrading-v5.html#authenticator-allow-all-and-allow-existing-users x_refsource_MISC