CVE-2024-40334
📋 TL;DR
CVE-2024-40334 is a Cross-Site Request Forgery (CSRF) vulnerability in idccms v1.35 that allows attackers to trick authenticated administrators into performing unauthorized file deletion operations. This affects all idccms v1.35 installations with administrative interfaces accessible to users. Attackers can exploit this by luring administrators to malicious websites while they're logged into the CMS.
💻 Affected Systems
- idccms
📦 What is this software?
Idccms by Idccms
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through file deletion leading to data loss, service disruption, and potential privilege escalation if critical system files are deleted.
Likely Case
Unauthorized deletion of uploaded files, configuration files, or CMS content leading to data loss and website functionality disruption.
If Mitigated
No impact if proper CSRF protections are implemented or if administrators don't visit malicious sites while authenticated.
🎯 Exploit Status
Exploitation requires social engineering to trick authenticated administrators into visiting malicious pages. The vulnerability is well-documented with proof-of-concept available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: unknown
Vendor Advisory: none
Restart Required: No
Instructions:
No official patch available. Implement CSRF tokens in /admin/serverFile_deal.php and validate all POST requests. Update to newer version if available.
🔧 Temporary Workarounds
Implement CSRF Protection
allAdd CSRF tokens to all administrative forms and validate them server-side
Modify /admin/serverFile_deal.php to include CSRF token validation
Restrict Admin Access
allLimit administrative interface access to specific IP addresses or VPN
Add IP restrictions to .htaccess or web server configuration for /admin/ directory
🧯 If You Can't Patch
- Implement strict SameSite cookie policies and require re-authentication for sensitive operations
- Monitor admin access logs for suspicious file deletion patterns and implement file integrity monitoring
🔍 How to Verify
Check if Vulnerable:
Test if /admin/serverFile_deal.php?mudi=upFileDel&dataID=3 accepts requests without CSRF tokens when admin is authenticatedCheck Version:
Check CMS version in admin panel or read version file if availableVerify Fix Applied:
Verify that all administrative endpoints require and validate CSRF tokens📡 Detection & Monitoring
Log Indicators:
- Multiple file deletion requests from same admin session in short time
- File deletion requests without corresponding form submissions
Network Indicators:
- HTTP POST requests to /admin/serverFile_deal.php with deletion parameters from unexpected referrers
SIEM Query:
source="web_logs" AND uri="/admin/serverFile_deal.php" AND (params="upFileDel" OR params="dataID=3") AND NOT referrer CONTAINS "yourdomain.com"