CVE-2021-23385 - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Flask-security Project	Flask-security

Configuration 1 [-]

cpe:2.3:a:flask-security_project:flask-security:*:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://github.com/mattupstate/flask-security
https://lists.debian.org/debian-lts-announce/2023/08/msg00034.html
https://security.snyk.io/vuln/SNYK-PYTHON-FLASKSECURITY-1293234
https://snyk.io/blog/url-confusion-vulnerabilities/

History

No history.

MITRE

Status: PUBLISHED

Assigner: snyk

Published: 2022-08-02T13:25:14.717803Z

Updated: 2024-09-16T22:08:36.808Z

Reserved: 2021-01-08T00:00:00

Link: CVE-2021-23385

Vulnrichment

No data.

NVD

Status : Modified

Published: 2022-08-02T14:15:10.017

Modified: 2023-08-28T19:15:07.507

Link: CVE-2021-23385

Redhat

No data.

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