Improper authorization control for web services In org.xwiki.platform:xwiki-platform-rest-server
Description
XWiki missing authorization when accessing the wiki level attachments list and metadata via REST API
Impact
Anyone can access the metadata of any attachment in the wiki using the wiki attachment REST endpoint. It's not filtering the result depending on current user rights, a not authenticated user could exploit this even in a totally private wiki.
To reproduce:
remove view from guest on the whole wiki
logout
access http://127.0.0.1:8080/xwiki/rest/wikis/xwiki/spaces/Sandbox/pages/WebHome/attachments
You get a list of attachments, while the expected result should be an empty list.
Patches
This vulnerability has been fixed in XWiki 14.10.22, 15.10.12, 16.7.0-rc-1 and 16.4.3.
Workarounds
We're not aware of any workaround except upgrading.
References
https://jira.xwiki.org/browse/XWIKI-22424
https://jira.xwiki.org/browse/XWIKI-22427
https://github.com/xwiki/xwiki-platform/commit/a43e933ddeda17dad1772396e1757998260e9342#diff-0
For more information
If you have any questions or comments about this advisory:
Open an issue in Jira XWiki.org
Email us at Security Mailing List
Attribution
Issue reported by Lukas Monert.
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Package | Affected version | Patched versions |
|---|---|---|---|
 maven | 14.10.22, 15.10.12, 16.4.3, 16.7.0 |
Aliases
References