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Cross-site Request Forgery (CSRF) Affecting flask-security-too package, versions [3.2.0, 3.4.5)

0.0
low

Snyk CVSS

    Attack Complexity High
    User Interaction Required

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  • Snyk ID SNYK-PYTHON-FLASKSECURITYTOO-1244523
  • published 9 Apr 2021
  • disclosed 8 Apr 2021
  • credit Unknown
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Introduced: 8 Apr 2021

CVE NOT AVAILABLE CWE-352 Open this link in a new tab

How to fix?

Upgrade Flask-Security-Too to version 3.4.5 or higher.

Overview

Affected versions of this package are vulnerable to Cross-site Request Forgery (CSRF). When a user is setting up two-factor authentication using an authenticator app, a QRcode is generated and made available via a GET request to /tf-qrcode. Since GETs do not have any CSRF protection, it is possible a malicious 3rd party could access the QRcode and therefore gain access to two-factor authentication codes. Note that the /tf-qrcode endpoint is ONLY accessible while the user is initially setting up their device. Once setup is complete, there is no vulnerability.