CVE-2021-46200
📋 TL;DR
This SQL injection vulnerability in Simple Music Cloud Community System 1.0 allows attackers to execute arbitrary SQL commands via the email parameter in /music/ajax.php. Attackers can potentially access, modify, or delete database content. All users running the vulnerable version are affected.
💻 Affected Systems
- Sourcecodester Simple Music Cloud Community System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data destruction, authentication bypass, and potential remote code execution if database functions allow it.
Likely Case
Unauthorized data access, user information theft, and potential privilege escalation within the application.
If Mitigated
SQL injection attempts are blocked by input validation and parameterized queries, preventing database access.
🎯 Exploit Status
Public exploit code available on GitHub. Simple SQL injection with no authentication required.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None found
Restart Required: No
Instructions:
No official patch available. Consider migrating to alternative software or implementing workarounds.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and parameterized queries for the email parameter in ajax.php
Modify /music/ajax.php to use prepared statements: $stmt = $conn->prepare('SELECT * FROM users WHERE email = ?'); $stmt->bind_param('s', $email);
Web Application Firewall (WAF)
allDeploy WAF rules to block SQL injection patterns targeting the /music/ajax.php endpoint
Add WAF rule: Block requests to /music/ajax.php containing SQL keywords in email parameter
🧯 If You Can't Patch
- Isolate the system behind a reverse proxy with strict input filtering
- Implement network segmentation to limit database access from the application server
🔍 How to Verify
Check if Vulnerable:
Test the /music/ajax.php endpoint with SQL injection payloads in the email parameter (e.g., email=test' OR '1'='1)Check Version:
Check application files for version information or review source code commentsVerify Fix Applied:
Attempt SQL injection after implementing parameterized queries and verify no database errors or unexpected results📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple failed login attempts with SQL patterns
- Unexpected database queries from application user
Network Indicators:
- HTTP POST requests to /music/ajax.php containing SQL keywords
- Unusual database traffic patterns
SIEM Query:
source=web_logs AND uri_path="/music/ajax.php" AND (email="*'*" OR email="*OR*" OR email="*UNION*" OR email="*SELECT*")