CVE-2024-40071
📋 TL;DR
This vulnerability allows attackers to upload arbitrary PHP files to Sourcecodester Online ID Generator System 1.0, leading to remote code execution. Attackers can take full control of affected systems by uploading malicious PHP files. All installations of version 1.0 are vulnerable.
💻 Affected Systems
- Sourcecodester Online ID Generator System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full administrative access, data theft, ransomware deployment, and use as pivot point for network attacks.
Likely Case
Webshell installation leading to data exfiltration, credential harvesting, and lateral movement within the network.
If Mitigated
File upload attempts blocked at web application firewall level with no successful exploitation.
🎯 Exploit Status
Public proof-of-concept available on GitHub. Simple HTTP POST request with crafted PHP file payload.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Consider removing the system or implementing workarounds.
🔧 Temporary Workarounds
File Upload Restriction
allImplement strict file upload validation in id_generator/classes/SystemSettings.php
Add file extension validation and MIME type checking before accepting uploads
Web Application Firewall Rules
allBlock requests to the vulnerable endpoint or filter PHP file uploads
Configure WAF to block: POST requests to */classes/SystemSettings.php?f=update_settings with file uploads
🧯 If You Can't Patch
- Remove or disable the vulnerable endpoint id_generator/classes/SystemSettings.php
- Implement network segmentation to isolate the system from critical assets
🔍 How to Verify
Check if Vulnerable:
Attempt to upload a PHP file via POST to /id_generator/classes/SystemSettings.php?f=update_settingsCheck Version:
Check system version in admin panel or readme filesVerify Fix Applied:
Verify file upload validation rejects PHP files and only accepts allowed image formats📡 Detection & Monitoring
Log Indicators:
- POST requests to SystemSettings.php with file uploads
- Unusual file creation in upload directories
- .php files in image upload directories
Network Indicators:
- HTTP POST to vulnerable endpoint with multipart/form-data
- Unexpected outbound connections from web server
SIEM Query:
web.url:*SystemSettings.php* AND http.method:POST AND http.content_type:multipart/form-data