CVE-2022-29662
📋 TL;DR
CVE-2022-29662 is a SQL injection vulnerability in CSCMS Music Portal System v4.2 that allows attackers to execute arbitrary SQL commands via the id parameter in the admin news save function. This affects all installations of CSCMS v4.2 with the vulnerable admin endpoint accessible. Attackers could potentially access, modify, or delete database content.
💻 Affected Systems
- CSCMS Music Portal System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, or full system takeover via SQL injection to RCE chain.
Likely Case
Unauthorized access to sensitive data in the database, including user credentials, personal information, and administrative data.
If Mitigated
Limited impact with proper input validation and parameterized queries preventing SQL injection execution.
🎯 Exploit Status
Exploitation requires access to the admin interface. SQL injection via id parameter is straightforward for attackers with access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v4.3 or later
Vendor Advisory: https://github.com/chshcms/cscms/issues/17
Restart Required: No
Instructions:
1. Backup your database and application files. 2. Download the latest version from the official repository. 3. Replace vulnerable files with patched versions. 4. Verify the fix by testing the vulnerable endpoint.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to sanitize the id parameter before processing
Modify /admin.php/news/admin/news/save to validate id parameter as integer
Access Restriction
allRestrict access to admin.php endpoint to trusted IP addresses only
Add IP whitelisting in .htaccess or web server configuration for /admin.php
🧯 If You Can't Patch
- Implement web application firewall (WAF) with SQL injection protection rules
- Disable or restrict access to the /admin.php/news/admin/news/save endpoint
🔍 How to Verify
Check if Vulnerable:
Test the /admin.php/news/admin/news/save endpoint with SQL injection payloads in the id parameterCheck Version:
Check version in application configuration files or admin panelVerify Fix Applied:
Verify that SQL injection attempts no longer succeed and parameterized queries are used📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts to admin interface
- Suspicious parameter values in web server logs
Network Indicators:
- SQL injection patterns in HTTP requests to /admin.php
- Unusual database connection patterns from web server
SIEM Query:
source="web_server" AND uri="/admin.php/news/admin/news/save" AND (param="id" AND value MATCH "[';]|UNION|SELECT")