Vulnerability Description
Zope is an open-source web application server. Zope versions prior to versions 4.6.3 and 5.3 have a remote code execution security issue. In order to be affected, one must use Python 3 for one's Zope deployment, run Zope 4 below version 4.6.3 or Zope 5 below version 5.3, and have the optional `Products.PythonScripts` add-on package installed. By default, one must have the admin-level Zope "Manager" role to add or edit Script (Python) objects through the web. Only sites that allow untrusted users to add/edit these scripts through the web are at risk. Zope releases 4.6.3 and 5.3 are not vulnerable. As a workaround, a site administrator can restrict adding/editing Script (Python) objects through the web using the standard Zope user/role permission mechanisms. Untrusted users should not be assigned the Zope Manager role and adding/editing these scripts through the web should be restricted to trusted users only. This is the default configuration in Zope.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Zope | Accesscontrol | >= 4.0, < 4.3 |
| Zope | Zope | >= 4.0, < 4.6.3 |
Related Weaknesses (CWE)
References
- https://github.com/zopefoundation/AccessControl/security/advisories/GHSA-qcx9-j5Third Party Advisory
- https://github.com/zopefoundation/Zope/commit/f72a18dda8e9bf2aedb46168761668464aPatchThird Party Advisory
- https://github.com/zopefoundation/Zope/security/advisories/GHSA-g4gq-j4p2-j8frThird Party Advisory
- https://github.com/zopefoundation/AccessControl/security/advisories/GHSA-qcx9-j5Third Party Advisory
- https://github.com/zopefoundation/Zope/commit/f72a18dda8e9bf2aedb46168761668464aPatchThird Party Advisory
- https://github.com/zopefoundation/Zope/security/advisories/GHSA-g4gq-j4p2-j8frThird Party Advisory
FAQ
What is CVE-2021-32811?
CVE-2021-32811 is a vulnerability with a CVSS score of 7.5 (HIGH). Zope is an open-source web application server. Zope versions prior to versions 4.6.3 and 5.3 have a remote code execution security issue. In order to be affected, one must use Python 3 for one's Zope ...
How severe is CVE-2021-32811?
CVE-2021-32811 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-32811?
Check the references section above for vendor advisories and patch information. Affected products include: Zope Accesscontrol, Zope Zope.