AI Threat Alert
### Impact Only users that has configured a JupyterHub installation to use the authenticator class `LTI13Authenticator` are influenced. LTI13Authenticator that was introduced in...
Full analysis pending. Showing NVD description excerpt.
Affected Systems
| Package | Ecosystem | Vulnerable Range | Patched |
|---|---|---|---|
| jupyterhub-ltiauthenticator | pip | = 1.3.0 | 1.4.0 |
Do you use jupyterhub-ltiauthenticator? You're affected.
Severity & Risk
Recommended Action
Patch available
Update jupyterhub-ltiauthenticator to version 1.4.0
Compliance Impact
Compliance analysis pending. Sign in for full compliance mapping when available.
Technical Details
NVD Description
### Impact Only users that has configured a JupyterHub installation to use the authenticator class `LTI13Authenticator` are influenced. 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 granting access to existing and new user identities. ### Patches None. ### Workarounds None. ### References - [This code segment](https://github.com/jupyterhub/ltiauthenticator/blob/3feec2e81b9d3b0ad6b58ab4226af640833039f3/ltiauthenticator/lti13/validator.py#L122-L164) didn't validate a JWT signature.
Weaknesses (CWE)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H References
- github.com/advisories/GHSA-mcgx-2gcr-p3hp
- github.com/jupyterhub/ltiauthenticator/blob/3feec2e81b9d3b0ad6b58ab4226af640833039f3/ltiauthenticator/lti13/validator.py
- github.com/jupyterhub/ltiauthenticator/blob/main/CHANGELOG.md
- github.com/jupyterhub/ltiauthenticator/security/advisories/GHSA-mcgx-2gcr-p3hp
- nvd.nist.gov/vuln/detail/CVE-2023-25574