CVE-2024-46612
📋 TL;DR
IceCMS v3.4.7 and earlier contain a hardcoded JWT secret key, allowing attackers to forge authentication tokens and gain unauthorized access. This affects all deployments using vulnerable versions of IceCMS, potentially compromising administrative functions and user data.
💻 Affected Systems
- IceCMS
📦 What is this software?
Icecms by Thecosy
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain administrative privileges, access sensitive data, modify content, install backdoors, or take full control of the CMS instance.
Likely Case
Unauthorized users bypass authentication to access restricted areas, modify content, or escalate privileges to perform administrative actions.
If Mitigated
With proper network segmentation and monitoring, impact is limited to the IceCMS instance itself without lateral movement to other systems.
🎯 Exploit Status
Exploitation requires only the hardcoded JWT key and basic JWT manipulation tools.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v3.4.8 or later
Vendor Advisory: https://github.com/Thecosy/iceCMS
Restart Required: Yes
Instructions:
1. Backup current installation. 2. Download latest version from official repository. 3. Replace all files except configuration and upload directories. 4. Restart web server. 5. Verify JWT keys are now unique.
🔧 Temporary Workarounds
Regenerate JWT Secret
allManually replace hardcoded JWT secret with a strong random key
php artisan jwt:secret --force
Disable JWT Authentication
allTemporarily disable JWT-based authentication if alternative methods exist
Edit configuration to use session-based auth instead of JWT
🧯 If You Can't Patch
- Implement network-level controls to restrict access to IceCMS administration interfaces
- Enable detailed logging of authentication attempts and monitor for JWT manipulation
🔍 How to Verify
Check if Vulnerable:
Check if JWT secret in configuration files matches known hardcoded value from vulnerable versionsCheck Version:
Check IceCMS version in admin panel or via composer show thecosy/icecmsVerify Fix Applied:
Verify JWT secret has been changed to a unique value and test authentication with invalid tokens📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts followed by successful login with unusual JWT
- Administrative actions from unexpected IP addresses or user agents
Network Indicators:
- Unusual JWT token patterns in authentication requests
- Administrative API calls from unauthorized sources
SIEM Query:
source="icecms" AND (event="authentication" AND result="success") | stats count by src_ip, user