CVE-2018-6863
📋 TL;DR
This vulnerability allows attackers to execute arbitrary SQL commands through the login parameter in Select Your College Script 2.0.2. It affects all systems running this specific PHP script version. Attackers can bypass authentication, extract sensitive data, or take control of the database.
💻 Affected Systems
- PHP Scripts Mall Select Your College Script
📦 What is this software?
Select Your College Script by Select Your College Script Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, authentication bypass, privilege escalation, and potential remote code execution through database functions.
Likely Case
Authentication bypass allowing unauthorized access to the application, followed by data extraction and potential manipulation of college selection records.
If Mitigated
Limited impact with proper input validation and parameterized queries preventing SQL injection, though authentication mechanisms may still be bypassed.
🎯 Exploit Status
Exploit code is publicly available and requires minimal technical skill to execute. The login page is typically accessible without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Check vendor website for updated version
2. Replace vulnerable files with patched versions
3. Test application functionality after update
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement server-side validation and sanitization of login parameters
// PHP example: Use prepared statements
$stmt = $conn->prepare('SELECT * FROM users WHERE username = ? AND password = ?');
$stmt->bind_param('ss', $username, $password);
Web Application Firewall Rules
allDeploy WAF with SQL injection detection rules
# Example ModSecurity rule
SecRule ARGS "@detectSQLi" "id:1001,phase:2,deny,status:403"
🧯 If You Can't Patch
- Implement network segmentation to isolate the vulnerable system from sensitive databases
- Deploy database monitoring to detect unusual SQL queries and login attempts
🔍 How to Verify
Check if Vulnerable:
Test login page with SQL injection payloads like ' OR '1'='1 in username/password fieldsCheck Version:
Check script files for version information or consult vendor documentationVerify Fix Applied:
Attempt SQL injection after implementing parameterized queries and verify proper error handling📡 Detection & Monitoring
Log Indicators:
- Unusual SQL syntax in login attempts
- Multiple failed login attempts with SQL keywords
- Database error messages in application logs
Network Indicators:
- HTTP POST requests to login page containing SQL keywords
- Unusually long parameter values in login requests
SIEM Query:
source="web_logs" AND (url_path="/login.php" OR url_path="/admin/login.php") AND (request_body CONTAINS "' OR" OR request_body CONTAINS "UNION SELECT" OR request_body CONTAINS "--")