CVE-2023-25574
February 25, 2025
"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.
Affected Packages
jupyterhub-ltiauthenticator (PYTHON):
Affected version(s) =1.3.0 <1.4.0Fix Suggestion:
Update to version 1.4.0Additional Notes
The description of this vulnerability differs from MITRE.
Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
10
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
10
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Verification of Cryptographic Signature
EPSS
Base Score:
0.23
