CVE-2024-24468
📋 TL;DR
A Cross-Site Request Forgery (CSRF) vulnerability in flusity-CMS v2.33 allows remote attackers to execute arbitrary code via the add_customblock.php endpoint. This affects all users running the vulnerable version of flusity-CMS, potentially enabling attackers to take full control of affected systems.
💻 Affected Systems
- flusity-CMS
📦 What is this software?
Flusity by Flusity
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with remote code execution, allowing attackers to install malware, steal data, or pivot to other systems.
Likely Case
Unauthorized code execution leading to website defacement, data theft, or backdoor installation.
If Mitigated
Limited impact with proper CSRF protections and input validation in place.
🎯 Exploit Status
Exploitation requires the victim to be authenticated and visit a malicious page while logged into flusity-CMS.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
Check the flusity-CMS GitHub repository or official website for security updates. If no patch is available, implement workarounds immediately.
🔧 Temporary Workarounds
Implement CSRF Tokens
allAdd CSRF protection tokens to all state-changing forms and endpoints.
Modify add_customblock.php to include CSRF token validation
Restrict Access to add_customblock.php
allLimit access to the vulnerable endpoint using authentication or IP restrictions.
Add .htaccess rules or web server configuration to restrict access
🧯 If You Can't Patch
- Disable or remove the add_customblock.php file if not needed.
- Implement web application firewall (WAF) rules to block CSRF attacks targeting this endpoint.
🔍 How to Verify
Check if Vulnerable:
Check if running flusity-CMS version 2.33 and if add_customblock.php exists without CSRF protection.Check Version:
Check CMS configuration files or admin panel for version information.Verify Fix Applied:
Verify that CSRF tokens are properly implemented and validated in add_customblock.php.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to add_customblock.php from unexpected referrers
- Multiple failed CSRF token validations
Network Indicators:
- HTTP requests to add_customblock.php with suspicious payloads
- Requests originating from known malicious domains
SIEM Query:
source="web_logs" AND uri="/add_customblock.php" AND (referrer NOT IN allowed_domains OR csrf_token="")