CVE-2024-57784
📋 TL;DR
This vulnerability allows attackers to perform directory traversal attacks through the /php/script_uploads.php component in Zenitel AlphaWeb XE. Attackers can potentially access files outside the intended directory. Organizations using Zenitel AlphaWeb XE v11.2.3.10 are affected.
💻 Affected Systems
- Zenitel AlphaWeb XE
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could read sensitive system files, configuration files, or source code, potentially leading to further system compromise.
Likely Case
Unauthorized file access leading to information disclosure of web-accessible files.
If Mitigated
Limited impact if proper file permissions and web server configurations restrict access to sensitive directories.
🎯 Exploit Status
Public proof-of-concept available in GitHub gist. Simple HTTP requests with directory traversal sequences can exploit this vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
Check Zenitel vendor website for security updates. No official patch information available at this time.
🔧 Temporary Workarounds
Restrict access to vulnerable endpoint
allBlock or restrict access to /php/script_uploads.php using web server configuration or firewall rules
# Apache: Add to .htaccess or virtual host config
<Files "script_uploads.php">
Order Deny,Allow
Deny from all
</Files>
# Nginx: Add to server block
location ~ /php/script_uploads\.php$ {
deny all;
return 403;
}
Implement input validation
allAdd input validation to sanitize file path parameters and prevent directory traversal sequences
# PHP example: Validate and sanitize input
$filename = basename($_GET['file']);
$path = '/allowed/directory/' . $filename;
if (strpos($filename, '..') !== false || strpos($filename, '/') !== false) {
die('Invalid file request');
}
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Zenitel AlphaWeb XE systems
- Deploy web application firewall (WAF) with directory traversal protection rules
🔍 How to Verify
Check if Vulnerable:
Test by sending HTTP request to /php/script_uploads.php with directory traversal payload (e.g., ?file=../../etc/passwd) and check responseCheck Version:
Check Zenitel AlphaWeb XE version in web interface or configuration filesVerify Fix Applied:
Attempt exploitation after applying workarounds to confirm vulnerability is mitigated📡 Detection & Monitoring
Log Indicators:
- HTTP requests to /php/script_uploads.php with '..' sequences in parameters
- Unusual file access patterns from web server process
Network Indicators:
- HTTP requests containing directory traversal sequences (../, ..\, %2e%2e%2f)
SIEM Query:
source="web_server_logs" AND uri_path="/php/script_uploads.php" AND (query_string="*..*" OR user_agent="*..*")