CVE-2020-29147
📋 TL;DR
This SQL injection vulnerability in Wayang-CMS v1.0 allows attackers to execute arbitrary SQL commands through the wy_controlls/wy_side_visitor.php endpoint. Attackers can extract sensitive database information including user credentials, configuration data, and other stored content. All Wayang-CMS v1.0 installations using the vulnerable component are affected.
💻 Affected Systems
- Wayang-CMS
📦 What is this software?
Wayang Cms by Wayang Cms Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data exfiltration, authentication bypass, privilege escalation, and potential remote code execution if database functions allow file operations.
Likely Case
Extraction of sensitive database information including user credentials, configuration secrets, and content data, potentially leading to site defacement or further attacks.
If Mitigated
Limited information disclosure if database permissions are properly restricted and input validation is implemented elsewhere in the application.
🎯 Exploit Status
SQL injection vulnerabilities are commonly weaponized and public proof-of-concept exists.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
No official patch available. Consider migrating to alternative CMS or implementing custom fixes.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement parameterized queries and input validation for all user inputs in wy_controlls/wy_side_visitor.php
Access Restriction
linuxRestrict access to wy_controlls/wy_side_visitor.php using web server configuration or application-level authentication
# Apache: <Location /wy_controlls/wy_side_visitor.php> Require all denied </Location>
# Nginx: location ~ /wy_controlls/wy_side_visitor.php { deny all; }
🧯 If You Can't Patch
- Implement Web Application Firewall (WAF) with SQL injection protection rules
- Restrict database user permissions to minimum required operations
🔍 How to Verify
Check if Vulnerable:
Test the wy_controlls/wy_side_visitor.php endpoint with SQL injection payloads like ' OR '1'='1Check Version:
Check Wayang-CMS version in configuration files or admin panelVerify Fix Applied:
Verify that SQL injection payloads no longer return database errors or unexpected data📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple requests to wy_controlls/wy_side_visitor.php with SQL keywords
Network Indicators:
- HTTP requests containing SQL injection patterns targeting the vulnerable endpoint
SIEM Query:
source="web_logs" AND (uri="/wy_controlls/wy_side_visitor.php" AND (query CONTAINS "UNION" OR query CONTAINS "SELECT" OR query CONTAINS "OR '1'='1"))