CVE-2024-31465
📋 TL;DR
This vulnerability allows any user with edit rights on any XWiki page to execute arbitrary code on the server by adding a malicious XWiki.SearchSuggestSourceClass object to their profile or other pages. This results in complete server compromise affecting confidentiality, integrity, and availability. All XWiki installations from version 5.0-rc-1 up to (but not including) 14.10.20, 15.5.4, and 15.9-rc-1 are affected.
💻 Affected Systems
- XWiki Platform
📦 What is this software?
Xwiki by Xwiki
Xwiki by Xwiki
Xwiki by Xwiki
Xwiki by Xwiki
Xwiki by Xwiki
Xwiki by Xwiki
⚠️ Risk & Real-World Impact
Worst Case
Complete server takeover with administrative access, data exfiltration, installation of persistent backdoors, and potential lateral movement to other systems.
Likely Case
Attackers gain full control of the XWiki instance, modify or delete content, steal sensitive information, and use the server for further attacks.
If Mitigated
Limited impact if proper network segmentation, least privilege access controls, and monitoring are in place, though server compromise still occurs.
🎯 Exploit Status
Exploitation requires only edit rights on any page, which is common for regular users. The vulnerability is straightforward to exploit once the technique is understood.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 14.10.20, 15.5.4, 15.10-rc-1 or later
Vendor Advisory: https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-34fj-r5gq-7395
Restart Required: Yes
Instructions:
1. Backup your XWiki installation and database. 2. Upgrade to XWiki 14.10.20, 15.5.4, or 15.10-rc-1 or later. 3. Restart the XWiki application server. 4. Verify the patch is applied by checking the XWiki.SearchSuggestSourceSheet document.
🔧 Temporary Workarounds
Manual patch application
allApply the security patch directly to the vulnerable XWiki.SearchSuggestSourceSheet document as shown in the GitHub commits.
🧯 If You Can't Patch
- Immediately restrict edit rights to trusted administrators only. Remove edit rights from all regular users.
- Implement network segmentation to isolate the XWiki server and monitor for suspicious activity.
🔍 How to Verify
Check if Vulnerable:
Check your XWiki version. If it's between 5.0-rc-1 and 14.10.19, or between 15.0 and 15.5.3, or between 15.6 and 15.8, you are vulnerable.Check Version:
Check the XWiki administration interface or view the xwiki.properties file for version information.Verify Fix Applied:
After patching, verify the XWiki.SearchSuggestSourceSheet document has been updated with the security fixes from the GitHub commits.📡 Detection & Monitoring
Log Indicators:
- Unusual modifications to XWiki.SearchSuggestSourceClass objects
- Suspicious code execution patterns in application logs
- Unexpected creation of objects with XWiki.SearchSuggestSourceClass type
Network Indicators:
- Unusual outbound connections from the XWiki server
- Suspicious incoming requests attempting to exploit the vulnerability
SIEM Query:
Search for events where XWiki.SearchSuggestSourceClass objects are created or modified by non-administrative users.🔗 References
- https://github.com/xwiki/xwiki-platform/commit/0317a3aa78065e66c86fc725976b06bf7f9b446e
- https://github.com/xwiki/xwiki-platform/commit/2740974c32dbb7cc565546d0f04e2374b32b36f7
- https://github.com/xwiki/xwiki-platform/commit/6a7f19f6424036fce3d703413137adde950ae809
- https://github.com/xwiki/xwiki-platform/commit/6a7f19f6424036fce3d703413137adde950ae809#diff-67b473d2b6397d65b7726c6a13555850b11b10128321adf9e627e656e1d130a5
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-34fj-r5gq-7395
- https://jira.xwiki.org/browse/XWIKI-21474
- https://github.com/xwiki/xwiki-platform/commit/0317a3aa78065e66c86fc725976b06bf7f9b446e
- https://github.com/xwiki/xwiki-platform/commit/2740974c32dbb7cc565546d0f04e2374b32b36f7
- https://github.com/xwiki/xwiki-platform/commit/6a7f19f6424036fce3d703413137adde950ae809
- https://github.com/xwiki/xwiki-platform/commit/6a7f19f6424036fce3d703413137adde950ae809#diff-67b473d2b6397d65b7726c6a13555850b11b10128321adf9e627e656e1d130a5
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-34fj-r5gq-7395
- https://jira.xwiki.org/browse/XWIKI-21474
