CVE-2021-21337
URL Redirection to Untrusted Site ('Open Redirect') in Products.PluggableAuthService
Public exploit code
Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.
- Products.PluggableAuthService 2.6.0 - Open Redirect2021-06-02 · webapps · python
Impact
### 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](https://github.com/zopefoundation/Products.PluggableAuthService/security/advisories/GHSA-p44j-xrqg-4xrr) - [Products.PluggableAuthService on PyPI](https://pypi.org/project/Products.PluggableAuthService/) - [OWASP page on open redirects](https://cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.html) ### For more information If you have any questions or comments about this advisory: * Open an issue in the [Products.PluggableAuthService issue tracker](https://github.com/zopefoundation/Products.PluggableAuthService/issues) * Email us at [security@plone.org](mailto:security@plone.org)
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | Products.PluggableAuthService | < 2.6.1 | 2.6.1 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Zope | Products.Pluggableauthservice | before 2.6.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- http://packetstormsecurity.com/files/162911/Products.PluggableAuthService-2.6.0-Open-Redirect.html
- https://github.com/zopefoundation/Products.PluggableAuthService/commit/7eead067898852ebd3e0f143bc51295928528dfa
- https://github.com/zopefoundation/Products.PluggableAuthService/security/advisories/GHSA-p44j-xrqg-4xrr
- https://pypi.org/project/Products.PluggableAuthService/
- https://github.com/advisories/GHSA-p44j-xrqg-4xrr
- https://nvd.nist.gov/vuln/detail/CVE-2021-21337
- https://github.com/pypa/advisory-database/tree/main/vulns/products-pluggableauthservice/PYSEC-2021-45.yaml
- https://pypi.org/project/Products.PluggableAuthService