Vulnerability · Published Mar 8, 2021 · Assigned by GitHub_M
CVE-2021-21337URL Redirection to Untrusted Site ('Open Redirect') in Products.PluggableAuthService
Medium 5.7
In plain English
A medium-severity open redirect in Products.PluggableAuthService from zopefoundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 8.4% (higher than 95% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | products-pluggableauthservice | 2.6.1 | GHSA-p44j-xrqg-4xrr |
| PyPI | products-pluggableauthservice | 2.6.1 | PYSEC-2021-45 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| zopefoundation | Products.PluggableAuthService | < 2.6.1 |
Weakness: CWE-601 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
References
- https://pypi.org/project/Products.PluggableAuthService/ x_refsource_MISC
- https://github.com/zopefoundation/Products.PluggableAuthService/security/advisories/GHSA-p44j-xrqg-4xrr x_refsource_CONFIRM
- https://github.com/zopefoundation/Products.PluggableAuthService/commit/7eead067898852ebd3e0f143bc51295928528dfa x_refsource_MISC
- http://packetstormsecurity.com/files/162911/Products.PluggableAuthService-2.6.0-Open-Redirect.html x_refsource_MISC