CVE-2021-21337: URL Redirection to Untrusted Site ('Open Redirect') in Products.PluggableAuthService
Impact What kind of vulnerability is it? Who is impacted?
Open redirect vulnerability - a maliciously crafted link to the login form and login functionality could redirect the browser to a different website.
Patches Has the problem been patched? What versions should users upgrade to?
The problem has been fixed in version 2.6.1. Depending on how you have installed Products.PluggableAuthService, you should change the buildout version pin to 2.6.1 and re-run the buildout, or if you used pip simply do pip install "Products.PluggableAuthService>=2.6.1"
Workarounds Is there a way for users to fix or remediate the vulnerability without upgrading?
There is no workaround. Users are encouraged to upgrade.
References Are there any links users can visit to find out more?
- GHSA-p44j-xrqg-4xrr - Products.PluggableAuthService on PyPI - OWASP page on open redirects
For more information If you have any questions or comments about this advisory: Open an issue in the Products.PluggableAuthService issue tracker Email us at security@plone.org
Other sources
Products.PluggableAuthService is a pluggable Zope authentication and authorization framework. In Products.PluggableAuthService before version 2.6.0 there is an open redirect vulnerability. A maliciously crafted link to the login form and login functionality could redirect the browser to a different website. The problem has been fixed in version 2.6.1. Depending on how you have installed Products.PluggableAuthService, you should change the buildout version pin to 2.6.1 and re-run the buildout, or if you used pip simply do pip install "Products.PluggableAuthService>=2.6.1".
Affected Software
Remediation
Event History
Frequently Asked Questions
What is CVE-2021-21337?
CVE-2021-21337 is an open redirect vulnerability in Products.PluggableAuthService before version 2.6.0.
How does CVE-2021-21337 affect Zope Products.pluggableauthservice?
CVE-2021-21337 affects Zope Products.pluggableauthservice versions up to 2.6.1.
What is the severity level of CVE-2021-21337?
CVE-2021-21337 has a severity level of medium (6.1).
How can I fix the open redirect vulnerability in Products.PluggableAuthService?
To fix the open redirect vulnerability, update Products.PluggableAuthService to version 2.6.1 or higher.
Where can I find more information about CVE-2021-21337?
You can find more information about CVE-2021-21337 at the following references: [1] [2] [3].