Ecosyste.ms: Advisories
An open API service providing security vulnerability metadata for many open source software ecosystems.
Security Advisories: GSA_kwCzR0hTQS1mN3F3LTVmZ2otMjQ3eM0n7A
Cross-site Scripting and Open Redirect in plone.app.contenttypes
Impact
Plone is vulnerable to reflected cross site scripting and open redirect when an attacker can get a compromised version of the image_view_fullscreen page in a cache, for example in Varnish.
The technique is known as cache poisoning.
Any later visitor can get redirected when clicking on a link on this page.
Usually only anonymous users are affected, but this depends on your cache settings.
Patches
New versions of plone.app.contenttypes have been released.
Version 2.2.3 works on Plone 5.2 and will be included in Plone 5.2.7.
Version 3.0.0a9 works on Plone 6 and will be included in Plone 6.0.0a3.
Note that the Products.CMFPlone package has the same problem in the 4.3 series.
In Plone 5.0-5.2, the default Products.ATContentTypes version has the same problem. See advisory.
For all unpatched versions of the three packages, you can use the following workaround.
Workaround
Make sure the image_view_fullscreen page is not stored in the cache.
In Plone:
- Login as Manager and go to Site Setup.
- Go to the 'Caching' control panel. If this does not exist, or 'Enable caching' is not checked, you should normally not be vulnerable.
- Click on the tab 'Caching operations'.
- Under 'Legacy template mappings' locate the ruleset 'Content item view'.
- From the last column ('Templates') remove 'image_view_fullscreen'.
- Click on Save.
Reporter
This vulnerability was responsibly disclosed to the Plone Security Team by Gustav Hansen, F-Secure Consulting. Thank you!
For more information
If you have any questions or comments about this advisory, email us at [email protected]
This is also the correct address to use when you want to report a possible vulnerability.
See our security report policy.
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1mN3F3LTVmZ2otMjQ3eM0n7A
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: over 2 years ago
Updated: over 1 year ago
CVSS Score: 4.3
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Identifiers: GHSA-f7qw-5fgj-247x
References:
- https://github.com/plone/Products.ATContentTypes/security/advisories/GHSA-g4c2-ghfg-g5rh
- https://github.com/plone/plone.app.contenttypes/security/advisories/GHSA-f7qw-5fgj-247x
- https://github.com/advisories/GHSA-f7qw-5fgj-247x
Blast Radius: 8.3
Affected Packages
pypi:plone.app.contenttypes
Dependent packages: 75Dependent repositories: 83
Downloads: 8,756 last month
Affected Version Ranges: < 2.2.3
Fixed in: 2.2.3
All affected versions: 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5, 1.1.6, 1.1.7, 1.1.8, 1.1.9, 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.2.6, 1.2.7, 1.2.8, 1.2.9, 1.2.10, 1.2.11, 1.2.12, 1.2.13, 1.2.14, 1.2.15, 1.2.16, 1.2.17, 1.2.18, 1.2.19, 1.2.20, 1.2.21, 1.2.22, 1.2.23, 1.2.24, 1.2.25, 1.2.26, 1.2.27, 1.3.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.4.8, 1.4.9, 1.4.10, 1.4.11, 1.4.12, 1.4.13, 1.4.14, 1.4.15, 1.4.16, 1.4.17, 1.4.18, 2.0.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5, 2.0.6, 2.1.0, 2.1.1, 2.1.2, 2.1.3, 2.1.4, 2.1.5, 2.1.6, 2.1.7, 2.1.8, 2.1.9, 2.1.10, 2.2.0, 2.2.1, 2.2.2
All unaffected versions: 2.2.3, 3.0.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6, 3.0.7