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CVE-2020-26275

Open redirect vulnerability

Published: Dec 21, 2020Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-601
NVD MITRE
6.1CVSSMEDIUM
EPSS Score
1.4%
Top 32.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

The Jupyter Server provides the backend (i.e. the core services, APIs, and REST endpoints) for Jupyter web applications like Jupyter notebook, JupyterLab, and Voila. In Jupyter Server before version 1.1.1, an open redirect vulnerability could cause the jupyter server to redirect the browser to a different malicious website. All jupyter servers running without a base_url prefix are technically affected, however, these maliciously crafted links can only be reasonably made for known jupyter server hosts. A link to your jupyter server may *appear* safe, but ultimately redirect to a spoofed server on the public internet. This same vulnerability was patched in upstream notebook v5.7.8. This is fixed in jupyter_server 1.1.1. If upgrade is not available, a workaround can be to run your server on a url prefix: "jupyter server --ServerApp.base_url=/jupyter/".

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-601

Affected Products

jupyter_serverjupyter-server
On-prem
AI / ML / notebook-mlops
jupyter serverjupyter
Mixed
AI / ML / notebook-mlops
jupyter-serverPyPIOSS Libraries
jupyter-serveross-projectUSAI / MLaka jupyter_server, jupyter-scheduler
jupyteross-projectAI / MLaka notebook, jupyter server, jupyterlab
pypipackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://github.com/jupyter-server/jupyter_server/security/advisories/GHSA-9f66-54xg-pc2c
github.com
https://github.com/jupyter-server/jupyter_server/commit/85e4abccf6ea9321d29153f73b0bd72ccb3a6bca
github.com
https://pypi.org/project/jupyter-server/
pypi.org
and 6 more references View all →

Timeline

Published
Dec 21, 2020
Last Updated
Nov 21, 2024

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