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Failure to Sanitize Special Elements into a Different Plane (Special Element Injection) in notebook

Critical
Carreau published GHSA-hwvq-6gjx-j797 Aug 9, 2021

Package

pip notebook (pip)

Affected versions

<6.4.1, <5.7.11

Patched versions

5.7.11, 6.4.1

Description

Impact

Untrusted notebook can execute code on load. This is a remote code execution, but requires user action to open a notebook.

Patches

5.7.11, 6.4.1

References

OWASP Page on Injection Prevention

For more information

If you have any questions or comments about this advisory, or vulnerabilities to report, please email our security list [email protected].

Credit: Guillaume Jeanne from Google

Example:

A notebook with the following content in a cell and it would display an alert when opened for the first time in Notebook (in an untrusted state):

{ "cell_type": "code", "execution_count": 0, "metadata": {}, "outputs": [ { "data": { "text/html": [ "<select><iframe></select><img src=x: onerror=alert('xss')>\n"], "text/plain": [] }, "metadata": {}, "output_type": "display_data" } ], "source": [ "" ] }

Severity

Critical

CVE ID

CVE-2021-32798

Credits