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Ubuntu: (Multiple Advisories) (CVE-2021-23385): Flask-Security vulnerability

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Ubuntu: (Multiple Advisories) (CVE-2021-23385): Flask-Security vulnerability

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
08/02/2022
Created
06/07/2024
Added
06/07/2024
Modified
06/07/2024

Description

This affects all versions of package Flask-Security. When using the get_post_logout_redirect and get_post_login_redirect functions, it is possible to bypass URL validation and redirect a user to an arbitrary URL by providing multiple back slashes such as \\\evil.com/path. This vulnerability is only exploitable if an alternative WSGI server other than Werkzeug is used, or the default behaviour of Werkzeug is modified using 'autocorrect_location_header=False. **Note:** Flask-Security is not maintained anymore.

Solution(s)

  • ubuntu-upgrade-python3-flask-security

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