QID 376259

Date Published: 2022-01-24

QID 376259: Python Flask-Security-Too Plugin Open Redirect Vulnerability

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".

Affected Versions:
All versions of Flask-Security-Too prior to version 4.0.1

QID detection logic(Authenticated):
This QID checks for vulnerable versions of Flask-Security-Too plugin using the 'pip list' command.

Successful exploitation of the vulnerability may allow an attacker to redirect a user to a malicious website of attacker's choosing.

CVSS V3 rated as High - 6.1 severity.

CVSS V2 rated as Medium - 5.8 severity.

Solution

Customers are advised to update to Flask-Security-Too plugin version 4.0.1 or later. For more info please refer to Flask-Security-Too

Vendor References

Open Redirect Vulnerability - github.com/Flask-Middleware/flask-security/security/advisories/GHSA-6qmf-fj6m-686c

CVEs related to QID 376259

CVE-2021-32618 |

Software Advisories

Advisory ID	Software	Component	Link
NA			github.com/Flask-Middleware/flask-security/commit/e39bb04615050448c1b8ba4caa7dacc0edd3e405

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