CVE-2024-41802
📋 TL;DR
An SQL injection vulnerability in Xibo CMS allows authenticated users to inject malicious SQL queries through API routes for importing JSON and Layouts containing DataSet data. This enables attackers to read, modify, or delete arbitrary data from the Xibo database. All Xibo CMS installations with affected versions are vulnerable if they have authenticated users.
💻 Affected Systems
- Xibo CMS
📦 What is this software?
Xibo by Xibosignage
Xibo by Xibosignage
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data manipulation, privilege escalation, and potential remote code execution through database functions.
Likely Case
Unauthorized data access and modification of CMS content, user data, and configuration settings by authenticated malicious users.
If Mitigated
Limited impact with proper input validation, parameterized queries, and least privilege database access controls in place.
🎯 Exploit Status
SQL injection vulnerabilities are commonly weaponized. Requires authenticated access but exploitation is straightforward once authenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.3.12 or 4.0.14
Vendor Advisory: https://xibosignage.com/blog/security-advisory-2024-07
Restart Required: Yes
Instructions:
1. Backup your Xibo database and configuration. 2. Download the patched version (3.3.12 for v3, 4.0.14 for v4). 3. Follow Xibo's upgrade documentation for your version. 4. Restart the Xibo service after upgrade.
🔧 Temporary Workarounds
Temporary API Access Restriction
allRestrict access to vulnerable API endpoints until patching is complete
# Configure web server (Apache/Nginx) to block /api/dataset/import and related endpoints
# Use firewall rules to restrict API access to trusted IPs only
Database Query Logging
linuxEnable detailed database query logging to detect SQL injection attempts
# For MySQL: SET GLOBAL general_log = 'ON';
# For PostgreSQL: ALTER SYSTEM SET log_statement = 'all';
🧯 If You Can't Patch
- Implement strict input validation and parameterized queries for all API endpoints
- Apply network segmentation and restrict database access to application servers only
🔍 How to Verify
Check if Vulnerable:
Check Xibo version in admin panel or via 'php version.php' in Xibo installation directory. If version is below 3.3.12 (for v3) or 4.0.14 (for v4), you are vulnerable.Check Version:
php /path/to/xibo/version.phpVerify Fix Applied:
After upgrade, verify version shows 3.3.12 or 4.0.14 in admin panel. Test API endpoints with safe test payloads to ensure SQL injection is prevented.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed API authentication attempts followed by successful login
- API requests with unusual characters or SQL keywords in parameters
Network Indicators:
- High volume of requests to /api/dataset/import endpoints
- Requests containing SQL keywords (SELECT, UNION, INSERT, etc.) in POST data
SIEM Query:
source="web_server_logs" AND (uri_path="/api/dataset/import" OR uri_path="/api/layout/import") AND (request_body CONTAINS "SELECT" OR request_body CONTAINS "UNION" OR request_body CONTAINS "INSERT")🔗 References
- https://github.com/xibosignage/xibo-cms/commit/b7a5899338cd841a39702e3fcaff76aa0ffe4075
- https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-x4qm-vvhp-g7c2
- https://xibosignage.com/blog/security-advisory-2024-07
- https://github.com/xibosignage/xibo-cms/commit/b7a5899338cd841a39702e3fcaff76aa0ffe4075
- https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-x4qm-vvhp-g7c2
- https://xibosignage.com/blog/security-advisory-2024-07
