CVE-2022-25401
📋 TL;DR
This vulnerability in Cuppa CMS v1.0 allows attackers to copy arbitrary files to the current directory via the file manager's copy function, enabling unauthorized read access to sensitive files. Any system running the vulnerable version is affected, potentially exposing configuration files, credentials, or other sensitive data.
💻 Affected Systems
- Cuppa CMS
📦 What is this software?
Cuppacms by Cuppacms
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain full read access to the server filesystem, potentially obtaining database credentials, configuration files, source code, and other sensitive data that could lead to complete system compromise.
Likely Case
Attackers exfiltrate configuration files containing database credentials or other sensitive information, leading to data breaches or further system compromise.
If Mitigated
With proper file permissions and web server configuration, impact is limited to files readable by the web server user.
🎯 Exploit Status
The exploit is straightforward - attackers can use the file manager's copy function to copy sensitive files to accessible locations. Public proof-of-concept details are available in the provided GitHub references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
No official patch is available. Consider upgrading to a newer version if available, or implement workarounds and monitoring.
🔧 Temporary Workarounds
Disable or restrict file manager access
allRemove or restrict access to the vulnerable file manager component
# Remove or rename the file manager directory
mv /path/to/cuppacms/file_manager /path/to/cuppacms/file_manager.disabled
Implement strict file permissions
linuxSet restrictive permissions on sensitive directories and files
# Make sensitive directories non-writable by web server
chmod 755 /path/to/sensitive/directories
# Make configuration files readable only by owner
chmod 600 /path/to/config/files
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block file copy requests to sensitive paths
- Monitor file system access logs for unusual copy operations and implement intrusion detection
🔍 How to Verify
Check if Vulnerable:
Check if Cuppa CMS v1.0 is installed and if the file manager copy function is accessible without proper authorization.Check Version:
# Check Cuppa CMS version in configuration files or admin panel
# Typically found in configuration files or version.phpVerify Fix Applied:
Test if the file manager copy function no longer allows copying arbitrary files to accessible locations.📡 Detection & Monitoring
Log Indicators:
- Unusual file copy operations in web server logs
- Multiple requests to file manager copy endpoint
- Access to sensitive files from unexpected locations
Network Indicators:
- HTTP POST requests to file manager copy endpoints with file paths as parameters
SIEM Query:
web.url="*file_manager*copy*" AND (web.uri="*/etc/*" OR web.uri="*/config/*" OR web.uri="*passwd*" OR web.uri="*shadow*")