GHSA-rpcg-f9q6-2mq6

Suggest an improvement
Source
https://github.com/advisories/GHSA-rpcg-f9q6-2mq6
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/06/GHSA-rpcg-f9q6-2mq6/GHSA-rpcg-f9q6-2mq6.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-rpcg-f9q6-2mq6
Aliases
Published
2021-06-08T18:45:52Z
Modified
2024-11-30T05:34:57.796634Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 8.7 (High) CVSS_V4 - 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 CVSS Calculator
Summary
Remote Code Execution via traversal in TAL expressions
Details

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

For more information

If you have any questions or comments about this advisory: * Open an issue in the Zope issue tracker * Email us at security@plone.org

Database specific 
{
    "nvd_published_at": null,
    "cwe_ids": [
        "CWE-22"
    ],
    "severity": "HIGH",
    "github_reviewed": true,
    "github_reviewed_at": "2021-06-08T17:17:21Z"
}
References

Affected packages

PyPI / zope

Package

Name
zope
View open source insights on deps.dev
Purl
pkg:pypi/zope

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.0
Fixed
5.2.1

Affected versions

5.*

5.0
5.1
5.1.1
5.1.2
5.2

PyPI / zope

Package

Name
zope
View open source insights on deps.dev
Purl
pkg:pypi/zope

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.6.1

Affected versions

4.*

4.0b1
4.0b2
4.0b3
4.0b4
4.0b5
4.0b6
4.0b7
4.0b8
4.0b9
4.0b10
4.0
4.1
4.1.1
4.1.2
4.1.3
4.2
4.2.1
4.3
4.4
4.4.1
4.4.2
4.4.3
4.4.4
4.5
4.5.1
4.5.2
4.5.3
4.5.4
4.5.5
4.6