CVE-2021-21336

Description

Products.PluggableAuthService is a pluggable Zope authentication and authorization framework. In Products.PluggableAuthService before version 2.6.0 there is an information disclosure vulnerability - everyone can list the names of roles defined in the ZODB Role Manager plugin if the site uses this plugin. The problem has been fixed in version 2.6.0. Depending on how you have installed Products.PluggableAuthService, you should change the buildout version pin to 2.6.0 and re-run the buildout, or if you used pip simply do `pip install "Products.PluggableAuthService>=2.6.0"`.

How to fix CVE-2021-21336

To remediate CVE-2021-21336, upgrade the affected package to a fixed version below.

• —upgrade to 2.6.0 or later
• —upgrade to 2dad81128250cb2e5d950cddc9d3c0314a80b4bb or later

Is CVE-2021-21336 being exploited?

Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• from 0, < 2.6.0
• from 0, < 2dad81128250cb2e5d950cddc9d3c0314a80b4bb | from 0, < 2.6.0

CVSS scores

References (9)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-21336
• PATCHgithub.com/zopefoundation/Products.PluggableAuthService
• PATCHpypi.org/project/Products.PluggableAuthService/
• WEBgithub.com/pypa/advisory-database/tree/main/vulns/products-pluggableauthservice/PYSEC-2021-44.yaml