CVE-2024-44820
📋 TL;DR
This vulnerability allows unauthenticated attackers to access sensitive PHP environment information by visiting a specific URL with a query parameter. It affects ZZCMS v.2023 and earlier versions. The exposed information can help attackers plan further attacks against the system.
💻 Affected Systems
- ZZCMS
📦 What is this software?
Zzcms by Zzcms
⚠️ Risk & Real-World Impact
Worst Case
Attackers obtain detailed server configuration, environment variables, and system information that enables targeted attacks like privilege escalation, SQL injection, or remote code execution.
Likely Case
Attackers gather reconnaissance data about the PHP environment, server configuration, and installed modules to identify other vulnerabilities for exploitation.
If Mitigated
With proper access controls and file permissions, the exposure is limited to information disclosure without enabling immediate system compromise.
🎯 Exploit Status
Exploitation requires only web browser access to the vulnerable URL with the phome=ShowPHPInfo parameter.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Check vendor website for security updates. 2. If patch available, download and apply according to vendor instructions. 3. Remove or secure the vulnerable eginfo.php file.
🔧 Temporary Workarounds
Remove vulnerable file
linuxDelete or rename the vulnerable eginfo.php file to prevent access
rm /path/to/3/E_bak5.1/upload/eginfo.php
mv /path/to/3/E_bak5.1/upload/eginfo.php /path/to/3/E_bak5.1/upload/eginfo.php.bak
Restrict file access
allConfigure web server to deny access to the vulnerable file
Add to .htaccess: <Files "eginfo.php">
Order Allow,Deny
Deny from all
</Files>
🧯 If You Can't Patch
- Implement strict access controls to block external access to the /3/E_bak5.1/upload/ directory
- Deploy web application firewall rules to block requests containing 'phome=ShowPHPInfo' parameter
🔍 How to Verify
Check if Vulnerable:
Access http://[target]/3/E_bak5.1/upload/eginfo.php?phome=ShowPHPInfo and check if PHP information page loadsCheck Version:
Check ZZCMS version in admin panel or configuration filesVerify Fix Applied:
Attempt to access the vulnerable URL and verify it returns 404 error or access denied📡 Detection & Monitoring
Log Indicators:
- HTTP GET requests to /3/E_bak5.1/upload/eginfo.php with phome=ShowPHPInfo parameter
- Unusual access to backup directories
Network Indicators:
- HTTP requests to unusual paths containing 'E_bak5.1' and 'eginfo.php'
SIEM Query:
source="web_logs" AND uri="/3/E_bak5.1/upload/eginfo.php" AND query="*phome=ShowPHPInfo*"