p PatchFirst

CVE-2024-35225

CVE-2024-35225 · Jupyter Server Proxy has a reflected XSS issue in host parameter

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Jupyter Server Proxy allows users to run arbitrary external processes alongside their notebook server and provide authenticated web access to them. Versions of 3.x prior to 3.2.4 and 4.x prior to 4.2.0 have a reflected cross-site scripting (XSS) issue. The `/proxy` endpoint accepts a `host` path segment in the format `/proxy/<host>`. When this endpoint is called with an invalid `host` value, `jupyter-server-proxy` replies with a response that includes the value of `host`, without sanitization [2]. A third-party actor can leverage this by sending a phishing link with an invalid `host` value containing custom JavaScript to a user. When the user clicks this phishing link, the browser renders the response of `GET /proxy/<host>`, which runs the custom JavaScript contained in `host` set by the actor. As any arbitrary JavaScript can be run after the user clicks on a phishing link, this issue permits extensive access to the user's JupyterLab instance for an actor. Patches are included in versions 4.2.0 and 3.2.4. As a workaround, server operators who are unable to upgrade can disable the `jupyter-server-proxy` extension.

CVSS 9.7 · Critical · EPSS 0.4% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • jupyter-server-proxy

    Versions
    • >= 3.0.0, < 3.2.4: Affected
    • >= 4.0.0, < 4.2.0: Affected

    No fix published

  • jupyter-server-proxy PyPI

    Versions
    • 3.0.0
    • 3.0.1
    • 3.0.2
    • 3.1.0
    • 3.2.0
    • 3.2.1
    • 3.2.2
    • 3.2.3
    Affected ranges
    • ECOSYSTEM: ≥ 3.0.0, < 3.2.4

    Update to 3.2.4

  • jupyter-server-proxy PyPI

    Versions
    • 4.0.0
    • 4.1.0
    • 4.1.1
    • 4.1.2
    Affected ranges
    • ECOSYSTEM: ≥ 4.0.0, < 4.2.0

    Update to 4.2.0

  • jupyter-server-proxy PyPI

    Versions
    • 3.0.0
    • 3.0.1
    • 3.0.2
    • 3.1.0
    • 3.2.0
    • 3.2.1
    • 3.2.2
    • 3.2.3
    • 4.1.2
    • v3.2.3
    • v4.1.2
    • v4.1.1
    • v3.2.2
    • v4.1.0
    • v4.0.0
    • v3.2.1
    • v3.2.0
    • v3.0.2
    • v3.0.1
    • v3.0.0
    • v3.0.0-rc.1
    • v1.6.0
    • v1.5.3
    • v1.5.2
    • v1.5.0
    • v1.4.0
    • v1.3.2
    • v1.3.1
    • v1.3.0
    • v1.1.0
    • v1.0.1
    • v0.8.8
    • v0.8.7
    • v0.8.6
    • v0.8.5
    • v0.8.4
    • v0.8.3
    • v0.8.2
    • v0.8.1
    • v0.8.0
    • v0.7.0
    • v0.5.0
    • v0.3.2
    • v0.3.1
    • v0.3.0
    • v0.2.0
    Affected ranges
    • {"events": [{"introduced": "0"}, {"fixed": "7abc9dc5bbb0b4b440548a5375261b8b8192fc22"}, {"fixed": "ff78128087e73fb9d0909e1366f8bf051e8ea878"}], "repo": "https://github.com/jupyterhub/jupyter-server-proxy", "type": "GIT"}
    • ECOSYSTEM: ≥ 3.0.0, < 3.2.4 ∪ ≥ 4.1.2, < 4.2.0

    Update to 3.2.4; Update to 4.2.0

Original sources

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