Rapid7 Vulnerability & Exploit Database

FreeBSD: VID-06492BD5-085A-4CC0-9743-E30164BDCB1C (CVE-2021-23385): py-flask-security -- user redirect to arbitrary URL vulnerability

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

FreeBSD: VID-06492BD5-085A-4CC0-9743-E30164BDCB1C (CVE-2021-23385): py-flask-security -- user redirect to arbitrary URL vulnerability

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
08/02/2022
Created
09/05/2023
Added
09/01/2023
Modified
09/01/2023

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)

  • freebsd-upgrade-package-py310-flask-security
  • freebsd-upgrade-package-py311-flask-security
  • freebsd-upgrade-package-py37-flask-security
  • freebsd-upgrade-package-py38-flask-security
  • freebsd-upgrade-package-py39-flask-security

References

  • CVE-2021-23385

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;