CVE-2022-30816
📋 TL;DR
CVE-2022-30816 is a critical SQL injection vulnerability in elitecms 1.01 that allows attackers to execute arbitrary SQL commands via the /admin/edit_sidebar.php endpoint. This affects all installations of elitecms 1.01, potentially compromising the entire database and application. Attackers can steal, modify, or delete sensitive data including user credentials and configuration information.
💻 Affected Systems
- elitecms
📦 What is this software?
Elite Cms by Elitecms
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, authentication bypass, and potential remote code execution through database functions.
Likely Case
Unauthenticated attackers extracting sensitive data like admin credentials, user information, and CMS configuration, then using this access to take over the application.
If Mitigated
Limited impact if proper input validation and parameterized queries are implemented, restricting attackers to read-only operations on non-sensitive data.
🎯 Exploit Status
The exploit requires no authentication and is simple to execute. Public proof-of-concept exists in the referenced GitHub repository.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None known
Restart Required: No
Instructions:
1. Check if elitecms 1.01 is installed. 2. If yes, immediately upgrade to a newer version if available. 3. If no upgrade exists, implement workarounds or consider migrating to a different CMS.
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd proper input validation and parameterized queries to /admin/edit_sidebar.php to prevent SQL injection.
Modify edit_sidebar.php to use prepared statements with parameterized queries instead of direct string concatenation
Access Restriction
allRestrict access to /admin/edit_sidebar.php to trusted IP addresses only.
Add .htaccess rules or web server configuration to limit access to specific IPs
🧯 If You Can't Patch
- Implement a web application firewall (WAF) with SQL injection protection rules
- Disable or remove the /admin/edit_sidebar.php endpoint if not needed
🔍 How to Verify
Check if Vulnerable:
Check if elitecms version 1.01 is installed by examining the CMS configuration files or admin panel. Test the /admin/edit_sidebar.php endpoint with SQL injection payloads.Check Version:
Check elitecms configuration files or database for version information, typically in config.php or similar files.Verify Fix Applied:
After implementing fixes, test the /admin/edit_sidebar.php endpoint with SQL injection payloads to ensure they are properly blocked or sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple failed login attempts followed by successful admin access
- Suspicious requests to /admin/edit_sidebar.php with SQL keywords
Network Indicators:
- HTTP requests to /admin/edit_sidebar.php containing SQL injection patterns (UNION, SELECT, etc.)
- Unusual database query patterns from the web server
SIEM Query:
source="web_logs" AND uri="/admin/edit_sidebar.php" AND (payload CONTAINS "UNION" OR payload CONTAINS "SELECT" OR payload CONTAINS "OR 1=1")