CVE-2025-65656
📋 TL;DR
CVE-2025-65656 is a file inclusion vulnerability in dcat-admin v2.2.3-beta and earlier that allows attackers to include arbitrary files from the server. This affects all systems running vulnerable versions of dcat-admin, potentially leading to remote code execution.
💻 Affected Systems
- dcat-admin
📦 What is this software?
Dcat Admin by Dcatadmin
Dcat Admin by Dcatadmin
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data exfiltration, and lateral movement within the network.
Likely Case
Arbitrary file read leading to sensitive information disclosure, configuration file access, and potential privilege escalation.
If Mitigated
Limited impact with proper file permissions and web server hardening, potentially only file disclosure without execution.
🎯 Exploit Status
Exploitation requires admin panel access but is straightforward once authenticated
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v2.2.4 or later
Vendor Advisory: https://github.com/jqhph/dcat-admin
Restart Required: No
Instructions:
1. Update dcat-admin to version 2.2.4 or later
2. Run composer update
3. Clear any cached files
4. Verify the fix by checking the VersionManager.php file
🔧 Temporary Workarounds
Restrict admin panel access
allLimit access to the admin panel to trusted IP addresses only
# In web server config (Apache example):
<Location /admin>
Require ip 192.168.1.0/24
</Location>
# In web server config (Nginx example):
location /admin {
allow 192.168.1.0/24;
deny all;
}
Disable vulnerable endpoint
allTemporarily disable or restrict access to the VersionManager endpoint
# Add to .htaccess or web server config:
RewriteRule ^admin/src/Extend/VersionManager\.php$ - [F,L]
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the dcat-admin instance
- Enable detailed logging and monitoring for all admin panel access attempts
🔍 How to Verify
Check if Vulnerable:
Check if dcat-admin version is 2.2.3-beta or earlier by examining composer.json or running 'composer show jqhph/dcat-admin'Check Version:
composer show jqhph/dcat-admin | grep versionVerify Fix Applied:
Verify the VersionManager.php file has been updated and check that the vulnerable code pattern is no longer present📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns in admin logs
- Multiple failed attempts to access VersionManager.php
- Requests with suspicious file paths in parameters
Network Indicators:
- Unusual outbound connections from the web server
- Traffic patterns indicating file enumeration attempts
SIEM Query:
source="web_logs" AND (uri="/admin/src/Extend/VersionManager.php" OR uri CONTAINS "VersionManager") AND (status=200 OR status=500)