CVE-2021-37473
📋 TL;DR
This SQL injection vulnerability in NavigateCMS allows attackers to execute arbitrary SQL queries through the 'products-order' parameter in product.php. It affects all users running NavigateCMS version 2.9.4 and below, potentially leading to complete database compromise.
💻 Affected Systems
- NavigateCMS
📦 What is this software?
Navigatecms by Naviwebs
⚠️ Risk & Real-World Impact
Worst Case
Complete database takeover including data exfiltration, modification, deletion, and potential remote code execution via database functions.
Likely Case
Data theft, privilege escalation, and unauthorized access to sensitive information stored in the database.
If Mitigated
Limited impact with proper input validation and parameterized queries in place.
🎯 Exploit Status
Simple SQL injection via POST parameter with public proof-of-concept available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.9.5 or later
Vendor Advisory: https://github.com/NavigateCMS/Navigate-CMS/issues/26
Restart Required: No
Instructions:
1. Backup your database and files. 2. Download latest version from GitHub. 3. Replace affected files. 4. Test functionality.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation for products-order parameter to only accept expected values
Modify product.php to validate products-order parameter against whitelist
WAF Rule
allImplement web application firewall rules to block SQL injection patterns
Add WAF rule to detect and block SQL injection attempts on products-order parameter
🧯 If You Can't Patch
- Implement strict input validation for all POST parameters
- Deploy web application firewall with SQL injection protection
🔍 How to Verify
Check if Vulnerable:
Check if version is 2.9.4 or below and test products-order parameter with SQL injection payloadsCheck Version:
Check NavigateCMS version in admin panel or read version fileVerify Fix Applied:
Test products-order parameter with SQL injection payloads after update📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple POST requests to product.php with suspicious parameters
Network Indicators:
- POST requests to product.php containing SQL keywords in products-order parameter
SIEM Query:
source="web_logs" AND uri="*/product.php" AND post_param="products-order" AND (post_value CONTAINS "UNION" OR post_value CONTAINS "SELECT" OR post_value CONTAINS "OR 1=1")🔗 References
- https://gist.github.com/victomteng1997/ed429fed7de46651c89f05e7591fd4fe
- https://github.com/NavigateCMS/Navigate-CMS
- https://github.com/NavigateCMS/Navigate-CMS/issues/26
- https://gist.github.com/victomteng1997/ed429fed7de46651c89f05e7591fd4fe
- https://github.com/NavigateCMS/Navigate-CMS
- https://github.com/NavigateCMS/Navigate-CMS/issues/26
