CVE-2024-39028
📋 TL;DR
This vulnerability in SeaCMS allows remote attackers to execute arbitrary code via the admin_ping.php file. It affects SeaCMS versions up to and including 12.9, enabling complete system compromise of vulnerable installations.
💻 Affected Systems
- SeaCMS
📦 What is this software?
Seacms by Seacms
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining complete control over the server, allowing data theft, malware deployment, and use as a foothold for lateral movement.
Likely Case
Remote code execution leading to web shell installation, data exfiltration, and potential ransomware deployment on vulnerable systems.
If Mitigated
Limited impact with proper network segmentation, WAF rules, and restricted file permissions preventing successful exploitation.
🎯 Exploit Status
Public proof-of-concept exists showing unauthenticated remote code execution via admin_ping.php.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 12.10 or later
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Backup your SeaCMS installation and database. 2. Download the latest version from the official SeaCMS repository. 3. Replace all files with the patched version. 4. Verify the admin_ping.php file has been updated.
🔧 Temporary Workarounds
Delete vulnerable file
allRemove or rename the admin_ping.php file to prevent exploitation
mv admin_ping.php admin_ping.php.bak
rm admin_ping.php
Restrict file access
linuxSet strict file permissions on admin_ping.php
chmod 000 admin_ping.php
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block requests to admin_ping.php
- Restrict network access to SeaCMS administration interface using IP whitelisting
🔍 How to Verify
Check if Vulnerable:
Check if admin_ping.php exists in your SeaCMS installation directory and verify SeaCMS version is <= 12.9Check Version:
Check SeaCMS configuration files or admin panel for version informationVerify Fix Applied:
Verify SeaCMS version is >= 12.10 or admin_ping.php has been removed/restricted📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to admin_ping.php
- Suspicious PHP code execution in web logs
- Unexpected file creation in web directories
Network Indicators:
- HTTP requests to /admin_ping.php with suspicious parameters
- Outbound connections from web server to unknown IPs
SIEM Query:
source="web_logs" AND uri="/admin_ping.php" AND (method="POST" OR params CONTAINS "system" OR params CONTAINS "exec")