Products.pluggableauthservice 2.6.0 open redirect Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2021-06-02 | Type : webapps | Platform : python

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# Exploit Title: Products.PluggableAuthService 2.6.0 - Open Redirect
# Exploit Author: Piyush Patil
# Affected Component: Pluggable Zope authentication/authorization framework
# Component Link: https://pypi.org/project/Products.PluggableAuthService/
# Version: < 2.6.1
# CVE: CVE-2021-21337
# Reference: https://github.com/zopefoundation/Products.PluggableAuthService/security/advisories/GHSA-p44j-xrqg-4xrr


--------------------------Proof of Concept-----------------------

1- Goto https://localhost/login
2- Turn on intercept and click on the login
3- Change "came_from" parameter value to https://attacker.com
4- User will be redirected to an attacker-controlled website.

Fix: pip install "Products.PluggableAuthService>=2.6.1"