CVE-2024-4591
📋 TL;DR
This CSRF vulnerability in DedeCMS 5.7 allows attackers to trick authenticated administrators into performing unauthorized actions via the /src/dede/sys_group_add.php endpoint. Attackers can remotely exploit this to modify system settings or user permissions. All DedeCMS 5.7 installations with the vulnerable file are affected.
💻 Affected Systems
- DedeCMS
📦 What is this software?
Dedecms by Dedecms
⚠️ Risk & Real-World Impact
Worst Case
Attackers could create administrative accounts, modify user permissions, or change system configurations leading to complete compromise.
Likely Case
Attackers create backdoor accounts or modify existing user privileges to gain unauthorized access.
If Mitigated
With proper CSRF protections and user awareness, impact is limited to failed exploitation attempts.
🎯 Exploit Status
Exploit requires social engineering to trick authenticated users. Public exploit code is available in GitHub repositories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Vendor did not respond to disclosure. Consider workarounds or alternative CMS solutions.
🔧 Temporary Workarounds
Implement CSRF Tokens
allAdd CSRF protection tokens to all form submissions and validate them server-side.
Modify /src/dede/sys_group_add.php to include and validate CSRF tokens
Restrict Access to Admin Interface
allLimit access to the DedeCMS admin interface to trusted IP addresses only.
Add IP-based restrictions in .htaccess or web server configuration
🧯 If You Can't Patch
- Implement strict SameSite cookie policies and require re-authentication for sensitive actions.
- Monitor admin logs for unauthorized group creation or permission changes.
🔍 How to Verify
Check if Vulnerable:
Check if /src/dede/sys_group_add.php exists and lacks CSRF token validation in form submissions.Check Version:
Check DedeCMS version in admin panel or readme files.Verify Fix Applied:
Verify that CSRF tokens are properly implemented and validated in the affected file.📡 Detection & Monitoring
Log Indicators:
- Unexpected group creation or permission changes in admin logs
- Multiple failed CSRF token validations
Network Indicators:
- POST requests to /src/dede/sys_group_add.php without referrer headers or CSRF tokens
SIEM Query:
source="dedecms_logs" AND (event="group_add" OR event="permission_change") AND user_agent CONTAINS suspicious_pattern