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CVE-2023-40170

Good to know:

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Date: August 28, 2023

jupyter-server is the backend for Jupyter web applications. Improper cross-site credential checks on `/files/` URLs could allow exposure of certain file contents, or accessing files when opening untrusted files via "Open image in new tab". This issue has been addressed in commit `87a49272728` which has been included in release `2.7.2`. Users are advised to upgrade. Users unable to upgrade may use the lower performance `--ContentsManager.files_handler_class=jupyter_server.files.handlers.FilesHandler`, which implements the correct checks.

Language: Python

Severity Score

Related Resources (7)

https://github.com/jupyter-server/jupyter_server/commit/87a4927272819f0b1cae1afa4c8c86ee2da002fd
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XDKQAWQN6SQTOVACZNXYKEHWQXGG4DOF/
https://security-tracker.debian.org/tracker/CVE-2023-40170
https://nvd.nist.gov/vuln/detail/CVE-2023-40170
https://github.com/jupyter-server/jupyter_server/security/advisories/GHSA-64x5-55rw-9974
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NRP7DNZYVOIA4ZB3U3ZWKTFZEPYWNGCQ/
https://www.mend.io/vulnerability-database/CVE-2023-40170

Severity Score

Weakness Type (CWE)

Cross-Site Scripting (XSS)

CWE-79

Improper Access Control

CWE-284

Missing Authentication for Critical Function

CWE-306

Top Fix

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Upgrade Version

Upgrade to version jupyter-server - 2.7.2

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

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