CVE-2017-11418
📋 TL;DR
CVE-2017-11418 is a critical SQL injection vulnerability in Fiyo CMS that allows attackers to execute arbitrary SQL commands through multiple GET parameters. This affects all users running Fiyo CMS 2.0.7, potentially leading to complete database compromise.
💻 Affected Systems
- Fiyo CMS
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full database compromise including data theft, data manipulation, privilege escalation to admin, and potential remote code execution via database functions.
Likely Case
Database information disclosure, authentication bypass, and data manipulation leading to website defacement or content theft.
If Mitigated
Limited impact with proper input validation and WAF rules blocking SQL injection patterns.
🎯 Exploit Status
Exploitation requires access to admin panel but SQL injection is straightforward via URL parameters. Public PoC available in GitHub issues.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.0.8 or later
Vendor Advisory: https://github.com/FiyoCMS/FiyoCMS/issues/5
Restart Required: No
Instructions:
1. Backup your database and files. 2. Download Fiyo CMS 2.0.8 or later from official repository. 3. Replace affected files, particularly dapur/apps/app_article/controller/article_list.php. 4. Verify parameter sanitization is implemented.
🔧 Temporary Workarounds
Input Validation Filter
allAdd parameter validation to filter SQL injection attempts
Modify article_list.php to add: $cat = intval($_GET['cat']); $user = intval($_GET['user']); $level = intval($_GET['level']);
WAF Rule Implementation
linuxDeploy web application firewall rules to block SQL injection patterns
Add mod_security rules: SecRule ARGS_GET "@detectSQLi" "id:1001,phase:2,deny"
🧯 If You Can't Patch
- Restrict access to admin panel using IP whitelisting and strong authentication
- Implement database user with minimal privileges (read-only where possible)
🔍 How to Verify
Check if Vulnerable:
Check if running Fiyo CMS 2.0.7 by examining version files or admin panel. Test with SQL injection payloads in cat, user, level parameters.Check Version:
grep -r "version.*2.0.7" /path/to/fiyocms/ or check admin panel dashboardVerify Fix Applied:
Verify version is 2.0.8+. Test SQL injection attempts should return proper error messages or be blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in web logs
- Multiple requests with SQL keywords in GET parameters
- Requests to article_list.php with suspicious parameters
Network Indicators:
- HTTP requests containing SQL injection patterns in URL parameters
- Unusual database query patterns from web server
SIEM Query:
source="web_logs" AND (url="*article_list.php*" AND (param="*UNION*" OR param="*SELECT*" OR param="*INSERT*" OR param="*DELETE*"))