Open Redirect Affecting flask-security package, versions [0,]


0.0
medium
  • Exploit Maturity

    Proof of concept

  • Attack Complexity

    Low

  • User Interaction

    Required

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  • snyk-id

    SNYK-PYTHON-FLASKSECURITY-1293234

  • published

    18 May 2021

  • disclosed

    18 May 2021

  • credit

    Noam Moshe of Claroty

How to fix?

There is no fixed version for Flask-Security.

Overview

Flask-Security is a Simple security for Flask apps.

Affected versions of this package are vulnerable to Open Redirect. 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.