CVE-2023-25574
CVE-2023-25574 · JupyterHub's LTI13Authenticator: JWT signature not validated
This page contains facts from public vulnerability sources. Check the original advisory before updating.
`jupyterhub-ltiauthenticator` is a JupyterHub authenticator for learning tools interoperability (LTI). LTI13Authenticator that was introduced in `jupyterhub-ltiauthenticator` 1.3.0 wasn't validating JWT signatures. This is believed to allow the LTI13Authenticator to authorize a forged request. Only users that has configured a JupyterHub installation to use the authenticator class `LTI13Authenticator` are affected. `jupyterhub-ltiauthenticator` version 1.4.0 removes LTI13Authenticator to address the issue. No known workarounds are available.
CVSS 10.0 · Critical · EPSS 0.4% · Fix available
- Published
- Updated
Stack: python
Affected products and versions
ltiauthenticator
- Versions
- = 1.3.0: Affected
No fix published
jupyterhub-ltiauthenticator PyPI
- Versions
- 1.3.0
- Affected ranges
- ECOSYSTEM: ≥ 1.3.0, < 1.4.0
Update to 1.4.0
jupyterhub-ltiauthenticator PyPI
- Versions
- 0.1
- 0.2
- 0.3
- 0.4.0
- 1.0.0
- 1.1.0
- 1.2.0
- 1.3.0
- Affected ranges
- ECOSYSTEM: ≤ 1.3.0
No fix published
Original sources
- https://github.com/jupyterhub/ltiauthenticator/security/advisories/GHSA-mcgx-2gcr-p3hp
- https://github.com/jupyterhub/ltiauthenticator/blob/3feec2e81b9d3b0ad6b58ab4226af640833039f3/ltiauthenticator/lti13/validator.py#L122-L164
- https://github.com/jupyterhub/ltiauthenticator/blob/main/CHANGELOG.md#140---2023-03-01
- https://nvd.nist.gov/vuln/detail/CVE-2023-25574