CVE-2021-32811
Zope versions prior to versions 4.6.3 and 5.3 have a remote code execution security issue.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.30%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.30% probability · 82th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-915, CWE-1321
- Affected
- zope/accesscontrol · zope/zope
- Source
- security-advisories@github.com
References
- https://github.com/zopefoundation/AccessControl/security/advisories/GHSA-qcx9-j53g-ccgfThird Party Advisory
- https://github.com/zopefoundation/Zope/commit/f72a18dda8e9bf2aedb46168761668464a4be988Patch, Third Party Advisory
- https://github.com/zopefoundation/Zope/security/advisories/GHSA-g4gq-j4p2-j8frThird Party Advisory
- https://github.com/zopefoundation/AccessControl/security/advisories/GHSA-qcx9-j53g-ccgfThird Party Advisory
- https://github.com/zopefoundation/Zope/commit/f72a18dda8e9bf2aedb46168761668464a4be988Patch, Third Party Advisory
- https://github.com/zopefoundation/Zope/security/advisories/GHSA-g4gq-j4p2-j8frThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.