CVE-2024-29275
📋 TL;DR
This critical SQL injection vulnerability in SeaCMS version 12.9 allows unauthenticated attackers to execute arbitrary SQL commands via the id parameter. Attackers can potentially read, modify, or delete database content, execute system commands, and compromise the entire web application. All SeaCMS 12.9 installations with default configurations are affected.
💻 Affected Systems
- SeaCMS
📦 What is this software?
Seacms by Seacms
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise including database destruction, remote code execution leading to full server takeover, and sensitive data exfiltration.
Likely Case
Database manipulation, sensitive information disclosure (user credentials, personal data), and potential privilege escalation.
If Mitigated
Limited impact with proper input validation, parameterized queries, and web application firewall rules blocking SQL injection patterns.
🎯 Exploit Status
SQL injection via GET parameter makes exploitation straightforward. Public GitHub issues demonstrate the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 12.9 (check latest release)
Vendor Advisory: https://github.com/seacms-net/CMS/issues/15
Restart Required: No
Instructions:
1. Backup your database and application files. 2. Download the latest SeaCMS version from the official repository. 3. Replace the vulnerable class.php file with the patched version. 4. Verify the fix by testing the vulnerable endpoint.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to sanitize the id parameter before processing
Modify class.php to add: if(!is_numeric($_GET['id'])) { die('Invalid input'); }
WAF Rule Implementation
allDeploy web application firewall rules to block SQL injection patterns
Add WAF rule: SecRule ARGS:id "@detectSQLi" "id:1001,phase:2,deny"
🧯 If You Can't Patch
- Implement strict input validation and parameterized queries in the vulnerable code
- Deploy a web application firewall with SQL injection detection rules
🔍 How to Verify
Check if Vulnerable:
Test the vulnerable endpoint with SQL injection payloads: http://target/class.php?id=1' OR '1'='1Check Version:
Check SeaCMS version in admin panel or readme filesVerify Fix Applied:
Attempt SQL injection payloads against the patched endpoint; should return error or no database manipulation📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in web logs
- Multiple requests with SQL keywords in id parameter
- Database error logs showing malformed queries
Network Indicators:
- HTTP requests containing SQL injection patterns in GET parameters
- Unusual database connection patterns from web server
SIEM Query:
source="web_logs" AND (uri="*class.php*" AND query="*id=*'*" OR query="*id=*%27*")