CVE-2025-9772
📋 TL;DR
CVE-2025-9772 is an unrestricted file upload vulnerability in RemoteClinic's /staff/edit.php endpoint that allows attackers to upload malicious files remotely. This affects RemoteClinic versions up to 2.0, which are no longer supported by the maintainer. Attackers can exploit this to upload webshells or other malicious content to compromise the system.
💻 Affected Systems
- RemoteClinic
📦 What is this software?
Remote Clinic by Remoteclinic
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through webshell upload leading to remote code execution, data theft, and lateral movement within the network.
Likely Case
Attackers upload malicious files to gain unauthorized access, deface websites, or establish persistence for further attacks.
If Mitigated
File uploads are properly validated and restricted, preventing malicious file execution while maintaining legitimate functionality.
🎯 Exploit Status
Exploit details are publicly available and the vulnerability requires minimal technical skill to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: None available
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch exists since the software is no longer supported. Consider migrating to supported alternatives.
🔧 Temporary Workarounds
Restrict file uploads via web server configuration
allBlock access to the vulnerable endpoint or restrict file upload functionality at the web server level
# Apache: Add to .htaccess
<Files "edit.php">
Deny from all
</Files>
# Nginx: Add to server block
location ~ /staff/edit\.php$ {
deny all;
}
Implement file upload validation
allAdd server-side validation to restrict allowed file types and extensions
# Example PHP validation snippet
$allowed_extensions = ['jpg', 'png', 'gif'];
$file_extension = strtolower(pathinfo($_FILES['image']['name'], PATHINFO_EXTENSION));
if (!in_array($file_extension, $allowed_extensions)) {
die('Invalid file type');
}
🧯 If You Can't Patch
- Isolate the affected system in a restricted network segment with minimal access
- Implement web application firewall (WAF) rules to block malicious file upload patterns
🔍 How to Verify
Check if Vulnerable:
Check if RemoteClinic version is 2.0 or earlier and if /staff/edit.php endpoint accepts file uploads without proper validationCheck Version:
# Check RemoteClinic version
cat /path/to/remoteclinic/version.txt 2>/dev/null || grep -r "version.*2\.0" /path/to/remoteclinic/Verify Fix Applied:
Test file upload functionality with various file types; only allowed extensions should be accepted📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to /staff/edit.php
- Uploads of non-image file types with image parameter
- Large number of upload requests from single IP
Network Indicators:
- POST requests to /staff/edit.php with file uploads
- Unusual file extensions in upload requests
SIEM Query:
source="web_logs" AND uri="/staff/edit.php" AND method="POST" AND (file_extension!="jpg" OR file_extension!="png" OR file_extension!="gif")