CVE-2024-6083

6.3 MEDIUM

📋 TL;DR

This critical vulnerability in PHPVibe allows attackers to upload arbitrary files without restrictions via the /app/uploading/upload-mp3.php endpoint. This can lead to remote code execution, data theft, or complete system compromise. All users running PHPVibe 11.0.46 are affected.

💻 Affected Systems

Products:
  • PHPVibe
Versions: 11.0.46
Operating Systems: All platforms running PHP
Default Config Vulnerable: ⚠️ Yes
Notes: The vulnerability exists in the default Media Upload Page component.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system takeover through webshell upload leading to data exfiltration, lateral movement, and persistent backdoor installation.

🟠

Likely Case

Attackers upload malicious PHP files to execute arbitrary code, deface websites, or steal sensitive data.

🟢

If Mitigated

File uploads are properly validated and restricted, preventing malicious file execution.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Exploit details are publicly available on GitHub, making this easily exploitable.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: None available

Restart Required: No

Instructions:

No official patch available. Vendor was contacted but did not respond. Consider upgrading to a newer version if available or implementing workarounds.

🔧 Temporary Workarounds

Restrict File Upload Access

all

Block access to the vulnerable upload endpoint using web server configuration.

# Apache: Add to .htaccess or virtual host config
<Files "upload-mp3.php">
    Order Deny,Allow
    Deny from all
</Files>
# Nginx: Add to server block
location ~ /app/uploading/upload-mp3\.php$ {
    deny all;
    return 403;
}

Implement File Upload Validation

all

Add server-side validation to restrict uploaded file types to allowed extensions only.

# Example PHP validation snippet
$allowed_extensions = ['mp3', 'wav', 'ogg'];
$file_extension = strtolower(pathinfo($_FILES['file']['name'], PATHINFO_EXTENSION));
if (!in_array($file_extension, $allowed_extensions)) {
    die('Invalid file type');
}

🧯 If You Can't Patch

  • Implement strict file upload validation and whitelist allowed file types.
  • Deploy a Web Application Firewall (WAF) with file upload protection rules.

🔍 How to Verify

Check if Vulnerable:

Check if PHPVibe version is 11.0.46 and if /app/uploading/upload-mp3.php exists and accepts file uploads without proper validation.

Check Version:

Check PHPVibe configuration files or admin panel for version information.

Verify Fix Applied:

Test file upload functionality with non-audio files; successful upload should be blocked. Verify workarounds are properly implemented.

📡 Detection & Monitoring

Log Indicators:

  • Unusual file uploads to /app/uploading/upload-mp3.php
  • Uploads of non-audio file types (e.g., .php, .exe)
  • Multiple failed upload attempts

Network Indicators:

  • POST requests to /app/uploading/upload-mp3.php with suspicious file contents
  • Unexpected outbound connections after file uploads

SIEM Query:

source="web_server" AND uri="/app/uploading/upload-mp3.php" AND (file_extension!="mp3" OR file_extension!="wav" OR file_extension!="ogg")

🔗 References

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