Remote Code Execution via Script (Python) objects under Python 3 (zopefoundation Zope)
At a glance
- Source
- NVD
- EPSS
- EPSS 2.30 % · percentile 83 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-915 — Improperly Controlled Modification of Dynamically-Determined Object Attributes
- CWE-1321 — Improperly Controlled Modification of Object Prototype Attributes
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | GitHub_M |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | HIGH 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P | NVD · nvd@nist.gov (Primary) |
Advisories
- GHSA-g4gq-j4p2-j8fr — Remote Code Execution via Script (Python) objects under Python 3
- PYSEC-2021-368 — 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 affecte
- PYSEC-2021-370 — 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 affecte
European references
- ENISA EUVD · EUVD-2021-34766
- GCVE · GCVE-0-2021-32811
Affected configurations (NVD CPE)
cpe:2.3:a:zope:accesscontrol:*:*:*:*:*:*:*:*≥ 4.0 < 4.3cpe:2.3:a:zope:accesscontrol:*:*:*:*:*:*:*:*≥ 5.0 < 5.2cpe:2.3:a:zope:zope:*:*:*:*:*:*:*:*≥ 4.0 < 4.6.3cpe:2.3:a:zope:zope:*:*:*:*:*:*:*:*≥ 5.0 < 5.3
Affected products
| Product | Versions |
|---|---|
| zopefoundation · Zope | affected >= 4.0, < 4.6.3 ; affected >= 5.0, < 5.3 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |