CVE-2017-11631
📋 TL;DR
CVE-2017-11631 is a critical SQL injection vulnerability in Fiyo CMS that allows attackers to execute arbitrary SQL commands via the 'id' parameter in the status.php controller. This affects all users running Fiyo CMS 2.0.7 with the vulnerable component enabled. Attackers can potentially read, modify, or delete database content.
💻 Affected Systems
- Fiyo CMS
📦 What is this software?
⚠️ 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
Database information disclosure, privilege escalation, and unauthorized data manipulation.
If Mitigated
Limited impact with proper input validation and database permissions restricting damage to non-critical data.
🎯 Exploit Status
Simple parameter manipulation required. Public exploit code exists in GitHub issues.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.0.8 or later
Vendor Advisory: https://github.com/FiyoCMS/FiyoCMS/issues/7
Restart Required: No
Instructions:
1. Backup your database and files. 2. Download Fiyo CMS 2.0.8 or later from the official repository. 3. Replace the vulnerable file: dapur/app/app_user/controller/status.php with the patched version. 4. Verify the fix by testing the affected functionality.
🔧 Temporary Workarounds
Input Validation Filter
allAdd parameter validation to sanitize the 'id' parameter before processing.
Edit dapur/app/app_user/controller/status.php and add input validation using PHP's filter_var() or prepared statements.
Web Application Firewall Rule
allBlock SQL injection patterns in requests to status.php.
Add WAF rule to detect and block SQL injection patterns in the 'id' parameter.
🧯 If You Can't Patch
- Implement strict input validation and parameterized queries in the affected code.
- Restrict access to the vulnerable endpoint using network controls or authentication.
🔍 How to Verify
Check if Vulnerable:
Test the status.php endpoint with SQL injection payloads in the 'id' parameter (e.g., id=1' OR '1'='1).Check Version:
Check the CMS version in the admin panel or review the version file if available.Verify Fix Applied:
Test the same SQL injection payloads after patching; they should be rejected or sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- HTTP requests to status.php with suspicious 'id' parameter values containing SQL keywords
Network Indicators:
- HTTP requests with SQL injection patterns in parameters
SIEM Query:
source="web_logs" AND uri="*status.php*" AND (param="*id=*'*" OR param="*id=*%27*" OR param="*id=*SELECT*" OR param="*id=*UNION*")