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Open Redirect Affecting flask-security-too Open this link in a new tab package, versions [0,4.1.0)

0.0
medium

  • Exploit Maturity

    Proof of concept

  • Attack Complexity

    Low

  • User Interaction

    Required

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  • snyk-id

    SNYK-PYTHON-FLASKSECURITYTOO-1293190

  • published

    18 May 2021

  • disclosed

    18 May 2021

  • credit

    Noam Moshe of Claroty

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Introduced: 18 May 2021

CVE-2021-32618 Open this link in a new tab
CWE-601 Open this link in a new tab
First added by Snyk

How to fix?

Upgrade Flask-Security-Too to version 4.1.0 or higher.

Overview

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`.