CVE-2023-29514
📋 TL;DR
CVE-2023-29514 is a critical remote code execution vulnerability in XWiki Platform where any user with document edit rights can execute arbitrary code with programming rights. This affects all XWiki installations with users who have edit permissions. The vulnerability allows complete system compromise.
💻 Affected Systems
- XWiki Platform
📦 What is this software?
Xwiki by Xwiki
Xwiki by Xwiki
Xwiki by Xwiki
⚠️ Risk & Real-World Impact
Worst Case
Complete system takeover: attacker gains full control of the server, can steal data, install malware, pivot to other systems, and maintain persistent access.
Likely Case
Data theft and system compromise: attackers will likely exfiltrate sensitive data, install backdoors, and potentially use the system for further attacks.
If Mitigated
Limited impact if only trusted users have edit rights, but still significant risk from insider threats or compromised accounts.
🎯 Exploit Status
Exploitation requires authenticated user with edit rights, but the vulnerability is straightforward to exploit once authenticated. The advisory provides technical details that could be used to create exploits.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 13.10.11, 14.4.8, 14.10.1, or 15.0 RC1
Vendor Advisory: https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-9j36-3cp4-rh4j
Restart Required: Yes
Instructions:
1. Backup your XWiki installation and database. 2. Download the patched version from xwiki.org. 3. Stop the XWiki service. 4. Replace the installation with the patched version. 5. Restart the XWiki service. 6. Verify the version is updated.
🧯 If You Can't Patch
- Immediately revoke all edit rights from non-administrative users
- Disable XWiki instance entirely until patching is possible
🔍 How to Verify
Check if Vulnerable:
Check XWiki version via Admin interface or by examining the installation directory. If version is below 13.10.11, 14.4.8, 14.10.1, or not 15.0 RC1 or higher, it's vulnerable.Check Version:
Check XWiki Admin dashboard or examine the WEB-INF/xwiki.properties file for version information.Verify Fix Applied:
After patching, verify the version shows 13.10.11, 14.4.8, 14.10.1, or 15.0 RC1 or higher in the Admin interface.📡 Detection & Monitoring
Log Indicators:
- Unusual document edits by non-admin users
- Execution of scripting commands in document saves
- Unexpected system commands being executed
Network Indicators:
- Unusual outbound connections from XWiki server
- Data exfiltration patterns
SIEM Query:
source="xwiki.log" AND ("script execution" OR "programming rights" OR "groovy" OR "velocity") AND user!="admin"🔗 References
- https://github.com/xwiki/xwiki-platform/commit/7bf7094f8ffac095f5d66809af7554c9cc44de09
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-9j36-3cp4-rh4j
- https://jira.xwiki.org/browse/XWIKI-20268
- https://github.com/xwiki/xwiki-platform/commit/7bf7094f8ffac095f5d66809af7554c9cc44de09
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-9j36-3cp4-rh4j
- https://jira.xwiki.org/browse/XWIKI-20268
