CVE-2022-27333
📋 TL;DR
CVE-2022-27333 allows attackers to delete the install.lock file in idcCMS v1.10, which resets the CMS configuration and data. This affects all users running the vulnerable version of idcCMS, potentially allowing unauthorized system reconfiguration.
💻 Affected Systems
- idcCMS
📦 What is this software?
Idccms by Idccms
⚠️ Risk & Real-World Impact
Worst Case
Complete CMS reset leading to data loss, unauthorized administrative access, and potential website defacement or takeover.
Likely Case
CMS settings reset requiring reinstallation and configuration, causing service disruption and potential data corruption.
If Mitigated
Minimal impact if proper file permissions prevent unauthorized file deletion and regular backups exist.
🎯 Exploit Status
The GitHub issue demonstrates the vulnerability and exploitation appears straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://github.com/Cutegod/idcCMS/issues/1
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if available or implementing workarounds.
🔧 Temporary Workarounds
Secure install.lock file permissions
linuxSet restrictive permissions on the install.lock file to prevent unauthorized deletion
chmod 444 install.lock
chown root:root install.lock
Remove installation directory
linuxDelete or rename the installation directory after setup to prevent reset functionality
rm -rf /path/to/idcCMS/install/
mv /path/to/idcCMS/install/ /path/to/idcCMS/install_backup/
🧯 If You Can't Patch
- Implement strict file system permissions on the install.lock file
- Monitor file system changes for unauthorized modifications to critical CMS files
🔍 How to Verify
Check if Vulnerable:
Check if running idcCMS v1.10 and verify if install.lock file exists and is writable by web server user
Check Version:
Check CMS admin panel or readme files for version information
Verify Fix Applied:
Verify install.lock file has restrictive permissions (e.g., 444) and cannot be deleted via web interface
📡 Detection & Monitoring
Log Indicators:
- Unauthorized file deletion attempts
- CMS reset or reinstallation events
- Access to installation scripts
Network Indicators:
- HTTP requests to installation-related endpoints
- Unusual POST requests to admin functions
SIEM Query:
source="web_server" AND (uri="*install*" OR uri="*lock*" OR method="DELETE")