CVE-2024-50824
📋 TL;DR
This SQL injection vulnerability in kashipara E-learning Management System allows attackers to execute arbitrary SQL commands through the class_name parameter in the admin/class.php endpoint. Attackers could potentially access, modify, or delete database content. Organizations using version 1.0 of this software are affected.
💻 Affected Systems
- kashipara E-learning Management System Project
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data exfiltration, privilege escalation to admin, and potential remote code execution if database functions allow it.
Likely Case
Unauthorized access to sensitive student/teacher data, grade manipulation, and potential authentication bypass.
If Mitigated
Limited impact with proper input validation and parameterized queries preventing SQL injection.
🎯 Exploit Status
The GitHub reference contains detailed exploitation steps. SQL injection via class_name parameter is straightforward with common tools like sqlmap.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
1. Check vendor website for security updates. 2. If patch available, download and apply. 3. Replace vulnerable class.php file. 4. Test functionality after update.
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd input validation to sanitize class_name parameter before processing
// PHP code to sanitize input:
$class_name = mysqli_real_escape_string($connection, $_POST['class_name']);
// OR use prepared statements:
$stmt = $connection->prepare('SELECT * FROM classes WHERE class_name = ?');
$stmt->bind_param('s', $class_name);
Web Application Firewall (WAF) Rules
linuxImplement WAF rules to block SQL injection patterns in class_name parameter
# Example ModSecurity rule:
SecRule ARGS:class_name "@detectSQLi" "id:1001,phase:2,deny,status:403,msg:'SQL Injection Attempt'"
# Example nginx rule:
location ~* \.php$ {
set $block_sqli 0;
if ($args ~* "(union|select|insert|update|delete|drop|create|alter).*(class_name)") {
set $block_sqli 1;
}
if ($block_sqli = 1) {
return 403;
}
}
🧯 If You Can't Patch
- Implement network segmentation to isolate the E-learning system from critical databases
- Deploy a web application firewall (WAF) with SQL injection detection rules
🔍 How to Verify
Check if Vulnerable:
Test the /admin/class.php endpoint with SQL injection payloads in class_name parameter (e.g., ' OR '1'='1). Monitor for database errors or unexpected responses.Check Version:
Check the software version in admin panel or readme files. For PHP systems: <?php echo 'Version: ' . $version; ?> in configuration files.Verify Fix Applied:
Attempt SQL injection tests after applying fixes. Verify no database errors appear and input is properly sanitized. Check that prepared statements are implemented.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts from single IP
- Requests to /admin/class.php with SQL keywords in parameters
- Database error messages in web server logs
Network Indicators:
- Unusual outbound database connections
- Large data transfers from database server
- HTTP requests containing SQL injection patterns
SIEM Query:
source="web_logs" AND (url="/admin/class.php" AND (param="*union*" OR param="*select*" OR param="*insert*" OR param="*' OR '*"))