CVE-2023-29524: Code injection from account through XWiki.SchedulerJobSheet in xwiki-platform
Impact
It's possible to execute anything with the right of the Scheduler Application sheet page.
To reproduce: 1. As a user without script or programming rights, edit your user profile with the object editor and add a new object of type XWiki.SchedulerJobClass (search for "Scheduler") 1. In "Job Script", add the following {{/code}} {{async async="true" cached="false" context="doc.reference"}}{{groovy}}println("Hello " + "from groovy!"){{/groovy} {{/async}} 1. Click "Save & View" 1. If the job information isn't already displayed (you should see "Job Name", "Job Description", etc.), append ?sheet=XWiki.SchedulerJobSheet to the URL.
Patches
This has been patched in XWiki 14.10.3 and 15.0 RC1.
Workarounds
While the fix in the scheduler itself is easy, it relies on the code macro source parameter, which was introduced in 14.10.2 so you have to upgrade to benefit from it.
References
https://jira.xwiki.org/browse/XWIKI-20295 https://jira.xwiki.org/browse/XWIKI-20462
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
Other sources
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. It's possible to execute anything with the right of the Scheduler Application sheet page. A user without script or programming rights, edit your user profile with the object editor and add a new object of type XWiki.SchedulerJobClass, In "Job Script", groovy code can be added and will be executed in the server context on viewing. This has been patched in XWiki 14.10.3 and 15.0 RC1. Users are advised to upgrade. There are no known workarounds for this issue.
Affected Software
Remediation
Patch Available
Patch Available
Event History
Frequently Asked Questions
What is CVE-2023-29524?
CVE-2023-29524 is a vulnerability in XWiki Platform that allows an attacker to execute arbitrary code with the permissions of the Scheduler Application sheet page.
How severe is CVE-2023-29524?
CVE-2023-29524 has a severity rating of 8.8 out of 10, which is considered critical.
How does CVE-2023-29524 affect XWiki Platform?
CVE-2023-29524 affects XWiki Platform versions up to and excluding 14.10.3.
How can CVE-2023-29524 be exploited?
CVE-2023-29524 can be exploited by a user without script or programming rights by editing their user profile with the object editor and adding a new malicious code.
Is there a fix available for CVE-2023-29524?
Yes, a fix is available for CVE-2023-29524. It is recommended to update XWiki Platform to version 14.10.3 or later.