CVE-2021-32674 – zope

Package

Manager: pip
Name: zope
Vulnerable Version: >=5.0 <5.2.1 || >=0 <4.6.1

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS: 0.00801 pctl0.73194

Details

Remote Code Execution via traversal in TAL expressions This advisory extends the previous advisory at https://github.com/zopefoundation/Zope/security/advisories/GHSA-5pr9-v234-jw36 with additional cases of TAL expression traversal vulnerabilities. ### Impact Most Python modules are not available for using in TAL expressions that you can add through-the-web, for example in Zope Page Templates. This restriction avoids file system access, for example via the 'os' module. But some of the untrusted modules are available indirectly through Python modules that are available for direct use. By default, you need to have the Manager role to add or edit Zope Page Templates through the web. Only sites that allow untrusted users to add/edit Zope Page Templates through the web are at risk. ### Patches The problem has been fixed in Zope 5.21 and 4.6.1. ### Workarounds The workaround is the same as for https://github.com/zopefoundation/Zope/security/advisories/GHSA-5pr9-v234-jw36: 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. ### References * [The previous advisory (GHSA-5pr9-v234-jw36)](https://github.com/zopefoundation/Zope/security/advisories/GHSA-5pr9-v234-jw36) ### For more information If you have any questions or comments about this advisory: * Open an issue in the [Zope issue tracker](https://github.com/zopefoundation/Zope/issues) * Email us at [security@plone.org](mailto:security@plone.org)

Metadata

Created: 2021-06-08T18:45:52Z
Modified: 2024-11-19T18:30:42Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/06/GHSA-rpcg-f9q6-2mq6/GHSA-rpcg-f9q6-2mq6.json
CWE IDs: ["CWE-22"]
Alternative ID: GHSA-rpcg-f9q6-2mq6
Finding: F063
Auto approve: 1