CVE-2024-33752
📋 TL;DR
This vulnerability allows remote attackers to upload arbitrary files to emlog Pro installations, potentially leading to remote code execution. Attackers can exploit this by submitting specially crafted requests to the admin/views/plugin.php endpoint. All users running affected versions of emlog Pro are vulnerable.
💻 Affected Systems
- emlog Pro
📦 What is this software?
Emlog by Emlog
Emlog by Emlog
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise through remote code execution, allowing attackers to install backdoors, steal data, or pivot to other systems.
Likely Case
Webshell deployment leading to website defacement, data theft, or use as part of a botnet.
If Mitigated
File upload blocked or contained, preventing code execution but potentially allowing denial of service through disk space consumption.
🎯 Exploit Status
Public proof-of-concept demonstrates file upload leading to remote code execution. Exploitation requires knowledge of the vulnerable endpoint.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if available or implementing workarounds.
🔧 Temporary Workarounds
Restrict access to admin interface
allLimit access to the admin/views/plugin.php endpoint using web server configuration or firewall rules.
# Apache: <Location /admin/views/plugin.php> Require all denied </Location>
# Nginx: location /admin/views/plugin.php { deny all; }
Implement file upload validation
allAdd server-side validation to restrict uploaded file types to safe extensions only.
🧯 If You Can't Patch
- Disable the plugin upload functionality entirely if not needed.
- Implement a Web Application Firewall (WAF) with file upload protection rules.
🔍 How to Verify
Check if Vulnerable:
Check if running emlog Pro version 2.3.0 or 2.3.2 and if the admin/views/plugin.php endpoint is accessible.Check Version:
Check emlog Pro version in admin panel or look for version information in source files.Verify Fix Applied:
Attempt to upload a test file with dangerous extension to the vulnerable endpoint; successful upload indicates vulnerability.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to admin/views/plugin.php
- POST requests with file uploads containing executable extensions (.php, .jsp, .asp)
Network Indicators:
- HTTP POST requests to /admin/views/plugin.php with file upload content
- Subsequent requests to uploaded malicious files
SIEM Query:
source="web_logs" AND (uri="/admin/views/plugin.php" AND method="POST" AND content_type="multipart/form-data")