PT-2021-6459 · Unknown+2 · Jupyter Notebook+2

0Xdeva + 1 · Published 2021-08-05 · Updated 2024-08-02 · CVE-2021-32798

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions Jupyter Notebook versions prior to 5.7.11 Jupyter Notebook versions prior to 6.4.1

Description The issue is related to the incorrect filtering of special symbols in the Caja component of the Jupyter Notebook environment, allowing a remote attacker to access confidential data, compromise its integrity, and cause a denial of service. In affected versions, an untrusted notebook can execute code on load, and Jupyter Notebook uses a deprecated version of Google Caja to sanitize user inputs. A public Caja bypass can be used to trigger an XSS when a victim opens a malicious ipynb document in Jupyter Notebook, allowing an attacker to execute arbitrary code on the victim's computer using Jupyter APIs.

Recommendations For versions prior to 5.7.11, update to version 5.7.11 or later. For versions prior to 6.4.1, update to version 6.4.1 or later. As a temporary workaround, consider restricting the execution of untrusted notebooks to minimize the risk of exploitation. Avoid opening malicious ipynb documents in Jupyter Notebook until the issue is resolved.

Exploit

Fix

XSS

Weakness Enumeration

CWE-75

CWE-80

CWE-79

Related Identifiers

ALT-PU-2021-3006

BDU:2022-01679

BIT-JUPYTER-BASE-NOTEBOOK-2021-32798

BIT-JUPYTER-NOTEBOOK-2021-32798

CVE-2021-32798

GHSA-HWVQ-6GJX-J797

OPENSUSE-SU-2024:0231-1

PYSEC-2021-118

Affected Products

Alt Linux

Debian

Jupyter Notebook

References · 22

• 🔥 https://github.com/jupyter/notebook/commit/79fc76e890a8ec42f73a3d009e44ef84c14ef0d5 · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-32798 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-jupyter-notebook-2021-32798 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-01679 · Security Note
• https://ubuntu.com/security/CVE-2021-32798 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-jupyter-base-notebook-2021-32798 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-32798 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:0231-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-32798 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-32798 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-hwvq-6gjx-j797 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-32798 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-32798 · Security Note
• https://osv.dev/vulnerability/PYSEC-2021-118 · Vendor Advisory
• https://github.com/jupyter/notebook · Note