CVE-2018-17410
📋 TL;DR
CVE-2018-17410 is a SQL injection vulnerability in Horus CMS that allows attackers to execute arbitrary SQL commands through specially crafted requests to the /busca or /home endpoints. This affects all Horus CMS installations that haven't been patched, potentially compromising the entire database and application. Attackers can exploit this without authentication to steal, modify, or delete sensitive data.
💻 Affected Systems
- Horus CMS
📦 What is this software?
Horus Cms by Horus Cms Project
⚠️ 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 exfiltrating sensitive data including user credentials, personal information, and administrative access to the CMS.
If Mitigated
Limited impact with proper input validation, parameterized queries, and web application firewall rules blocking SQL injection patterns.
🎯 Exploit Status
SQL injection is well-understood with many automated tools available. The specific endpoints (/busca and /home) are clearly identified in the CVE description.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown specific version - check Horus CMS repository
Vendor Advisory: https://lab.insightsecurity.com.br/horus-cms/
Restart Required: No
Instructions:
1. Update Horus CMS to the latest version. 2. If source code is available, implement parameterized queries or prepared statements for all database operations. 3. Validate and sanitize all user inputs, especially in search functionality.
🔧 Temporary Workarounds
Web Application Firewall Rules
allImplement WAF rules to block SQL injection patterns targeting /busca and /home endpoints
# Example ModSecurity rule: SecRule REQUEST_URI "@rx ^/(busca|home)" "id:1001,phase:1,deny,status:403,msg:'SQLi attempt blocked'"
# Add SQL injection detection patterns to existing WAF rules
Input Validation Filter
allAdd input validation middleware to reject SQL keywords in search parameters
# PHP example: if (preg_match('/\b(SELECT|INSERT|UPDATE|DELETE|UNION|DROP|ALTER)\b/i', $_GET['search'])) { die('Invalid input'); }
🧯 If You Can't Patch
- Implement strict input validation and sanitization for all user inputs, especially in search functionality
- Deploy a web application firewall with SQL injection protection rules
- Restrict access to /busca and /home endpoints using network ACLs or authentication
- Monitor database logs for unusual query patterns and failed login attempts
- Regularly backup database and implement database activity monitoring
🔍 How to Verify
Check if Vulnerable:
Test /busca endpoint with SQL injection payloads like: ' OR '1'='1 or ' UNION SELECT NULL--Check Version:
Check Horus CMS version in admin panel or configuration filesVerify Fix Applied:
Attempt SQL injection payloads against patched endpoints and verify they are rejected or sanitized📡 Detection & Monitoring
Log Indicators:
- Unusual database query patterns from web server logs
- Multiple failed SQL queries from single IP
- Requests to /busca or /home with SQL keywords in parameters
- Database error messages containing SQL syntax in web logs
Network Indicators:
- HTTP requests to /busca or /home with SQL injection payloads
- Unusual database traffic patterns from web servers
- Multiple rapid requests to search endpoints
SIEM Query:
source="web_logs" AND (uri_path="/busca" OR uri_path="/home") AND (query_string="*SELECT*" OR query_string="*UNION*" OR query_string="*OR '1'='1*")