CVE-2022-21659: Observable Response Discrepancy in Flask-AppBuilder

CVE-2022-21659 · Severity: low · CVSS 3.1 · Published 2022-01-31

Flask-AppBuilder is an application development framework, built on top of the Flask web framework. In affected versions there exists a user enumeration vulnerability. This vulnerability allows for a non authenticated user to enumerate existing accounts by timing the response time from the server when you are logging in. Users are advised to upgrade to version 3.4.4 as soon as possible. There are no known workarounds for this issue.

Technologies: flask-appbuilder (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2022-21659 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2022-21659 being exploited in the wild.
How severe is CVE-2022-21659?
Low severity, with a CVSS score of 3.1, published 31 January 2022.
Which products and versions are affected?
flask-appbuilder (PyPI) ECOSYSTEM:introduced=0,fixed=3.4.2, ECOSYSTEM:introduced=0,fixed=3.4.4.
Is there a fix for CVE-2022-21659?
Yes. flask-appbuilder (PyPI): upgrade to 3.4.2, 3.4.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2022-21659?
Check whether you run flask-appbuilder (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • flask-appbuilder (PyPI): upgrade to 3.4.2, 3.4.4 or later
    pip install "flask-appbuilder>=3.4.4"

Affected products

  • flask-appbuilder (PyPI) ECOSYSTEM:introduced=0,fixed=3.4.2, ECOSYSTEM:introduced=0,fixed=3.4.4

Identifiers

  • CVE-2022-21659
  • GHSA-wfjw-w6pv-8p7f
  • PYSEC-2022-24

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