CVE-2024-7943
📋 TL;DR
This critical vulnerability in itsourcecode Laravel Property Management System 1.0 allows remote attackers to upload arbitrary files without restrictions via the upload function in PropertiesController.php. This affects all installations of version 1.0 that have the vulnerable component enabled. Attackers can exploit this to upload malicious files like web shells or malware.
💻 Affected Systems
- itsourcecode Laravel Property Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise via remote code execution, data theft, defacement, or ransomware deployment through uploaded malicious files like web shells.
Likely Case
Unauthorized file upload leading to web shell installation, data manipulation, or denial of service through file system exhaustion.
If Mitigated
Limited impact with proper file upload validation, but potential for minor disruption if other controls fail.
🎯 Exploit Status
Exploit details are publicly disclosed, making attacks straightforward for attackers with basic skills.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None known
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if exists, or apply manual fixes to the upload function.
🔧 Temporary Workarounds
Implement File Upload Validation
allAdd server-side validation to restrict file types, sizes, and names in the upload function.
Edit PropertiesController.php to include validation checks before processing uploads.
Disable File Upload Feature
allTemporarily disable the vulnerable upload functionality if not essential.
Comment out or remove the upload route in web.php or similar routing file.
🧯 If You Can't Patch
- Restrict access to the upload endpoint using network firewalls or web application firewalls (WAF).
- Monitor file upload logs for suspicious activity and implement file integrity monitoring.
🔍 How to Verify
Check if Vulnerable:
Check if the system runs Laravel Property Management System version 1.0 and has an accessible upload endpoint without validation.Check Version:
Check composer.json or project files for version information, or inspect the application interface.Verify Fix Applied:
Test file upload with restricted types (e.g., .php files) to ensure they are rejected.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads, especially with .php, .exe, or other executable extensions in web server logs.
Network Indicators:
- HTTP POST requests to upload endpoints with suspicious file content.
SIEM Query:
source="web_logs" AND (uri_path="/upload" OR uri_path LIKE "%/upload%") AND (file_extension="php" OR file_extension="exe")