CVE-2021-32633
Description
Zope is an open-source web application server. In Zope versions prior to 4.6 and 5.2, users can access untrusted modules indirectly through Python modules that are available for direct use. By default, only users with the Manager role can add or edit Zope Page Templates through the web, but sites that allow untrusted users to add/edit Zope Page Templates through the web are at risk from this vulnerability. The problem has been fixed in Zope 5.2 and 4.6. As a workaround, a site administrator can restrict adding/editing Zope Page Templates through the web using the standard Zope user/role permission mechanisms. Untrusted users should not be assigned the Zope Manager role and adding/editing Zope Page Templates through the web should be restricted to trusted users only.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | zope | <4.6 | 4.6 |
| PyPI | zope | >=5.0,<5.2 | 5.2 |
| PyPI | zope | <4.6.1 | 4.6.1 |
| PyPI | zope | >=5.0,<5.2.1 | 5.2.1 |
| PyPI | zope | <1d897910139e2c0b11984fc9b78c1da1365bec21||>=4.0,<4.6.1 | 1d897910139e2c0b11984fc9b78c1da1365bec21 |
| PyPI | zope | <1f8456bf1f908ea46012537d52bd7e752a532c91||>=5.0,<5.2 | 1f8456bf1f908ea46012537d52bd7e752a532c91 |
References
- https://github.com/zopefoundation/Zope/security/advisories/GHSA-5pr9-v234-jw36
- https://nvd.nist.gov/vuln/detail/CVE-2021-32633
- https://github.com/zopefoundation/Zope/commit/1f8456bf1f908ea46012537d52bd7e752a532c91
- https://cyllective.com/blog/post/plone-authenticated-rce-cve-2021-32633
- https://github.com/pypa/advisory-database/tree/main/vulns/zope/PYSEC-2021-88.yaml
- https://github.com/zopefoundation/Zope
- http://www.openwall.com/lists/oss-security/2021/05/21/1
- http://www.openwall.com/lists/oss-security/2021/05/22/1
- https://github.com/zopefoundation/Zope/security/advisories/GHSA-rpcg-f9q6-2mq6
- https://nvd.nist.gov/vuln/detail/CVE-2021-32674
- https://github.com/zopefoundation/Zope/commit/1d897910139e2c0b11984fc9b78c1da1365bec21
- https://pypi.org/project/Zope
- https://github.com/pypa/advisory-database/tree/main/vulns/zope/PYSEC-2021-104.yaml
- https://pypi.org/project/Zope/
- https://github.com/advisories/GHSA-5vq5-pg3r-9ph3
- https://github.com/advisories/GHSA-962m-m8jw-8wrr
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.