CVE-2024-7450
📋 TL;DR
This vulnerability allows remote attackers to upload arbitrary files to the Placement Management System 1.0 via the /resume_upload.php endpoint. Attackers can potentially upload malicious files like web shells to gain unauthorized access or execute code. Organizations using itsourcecode Placement Management System 1.0 are affected.
💻 Affected Systems
- itsourcecode Placement Management System
📦 What is this software?
Placement Management System by Angeljudesuarez
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, and lateral movement within the network.
Likely Case
Attackers upload web shells to gain persistent access, deface websites, or steal sensitive placement data.
If Mitigated
File uploads are blocked or properly validated, preventing exploitation with minimal impact.
🎯 Exploit Status
Exploit code is publicly available on GitHub, making attacks easy to execute.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None found
Restart Required: No
Instructions:
No official patch available. Consider workarounds or replacing the software.
🔧 Temporary Workarounds
Block access to vulnerable endpoint
allRestrict access to /resume_upload.php via web server configuration or firewall rules.
# Apache: Add to .htaccess
<Files "resume_upload.php">
Order Deny,Allow
Deny from all
</Files>
# Nginx: Add to server block
location = /resume_upload.php {
deny all;
return 403;
}
Implement file upload validation
allAdd server-side validation to restrict file types, extensions, and content.
# Example PHP validation snippet
$allowed_types = ['image/jpeg', 'image/png'];
$allowed_ext = ['jpg', 'jpeg', 'png'];
if(!in_array($_FILES['fileToUpload']['type'], $allowed_types) || !in_array(pathinfo($_FILES['fileToUpload']['name'], PATHINFO_EXTENSION), $allowed_ext)) {
die('Invalid file type');
}
🧯 If You Can't Patch
- Disable the Image Handler component entirely if not needed.
- Implement web application firewall (WAF) rules to block malicious file upload patterns.
🔍 How to Verify
Check if Vulnerable:
Check if /resume_upload.php exists and accepts file uploads without proper validation. Test by attempting to upload a non-image file.Check Version:
Check application version in source code or documentation; look for 'Placement Management System 1.0'.Verify Fix Applied:
Attempt to upload a malicious file (e.g., .php file) to /resume_upload.php; it should be rejected with proper error messages.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to /resume_upload.php, especially non-image files or large uploads.
- HTTP 200 responses after uploading suspicious files to the endpoint.
Network Indicators:
- POST requests to /resume_upload.php with file uploads, particularly with unusual file extensions or content types.
SIEM Query:
source="web_server_logs" AND uri_path="/resume_upload.php" AND http_method="POST" AND (file_extension!="jpg" OR file_extension!="png" OR file_extension!="jpeg")