CVE-2018-12055
📋 TL;DR
CVE-2018-12055 is a critical SQL injection vulnerability in PHP Scripts Mall Schools Alert Management Script that allows attackers to execute arbitrary SQL commands via crafted POST data to multiple PHP files. This affects all deployments of the vulnerable script version, potentially compromising the entire database. Attackers can steal, modify, or delete sensitive school data including student records, staff information, and system credentials.
💻 Affected Systems
- PHP Scripts Mall Schools Alert Management Script
📦 What is this software?
Schools Alert Management Script by Schools Alert Management Script Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, authentication bypass, and potential remote code execution via database functions.
Likely Case
Unauthenticated attackers exfiltrating sensitive student and staff data, modifying records, or gaining administrative access to the system.
If Mitigated
Limited impact with proper input validation, parameterized queries, and database permissions restricting damage to non-sensitive data.
🎯 Exploit Status
Public exploit code available on Exploit-DB and GitHub. Simple POST requests with SQL injection payloads can trigger the vulnerability without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown specific version - check with PHP Scripts Mall vendor
Vendor Advisory: No official vendor advisory URL found in references
Restart Required: No
Instructions:
1. Contact PHP Scripts Mall for patched version. 2. Replace vulnerable PHP files with patched versions. 3. Implement parameterized queries in all database interactions. 4. Add input validation and sanitization for all user inputs.
🔧 Temporary Workarounds
Web Application Firewall (WAF)
allDeploy WAF rules to block SQL injection patterns in POST requests to vulnerable PHP files.
Input Validation Filter
linuxAdd PHP input validation filters to sanitize POST data before processing.
// Add to vulnerable PHP files:
// $input = filter_input(INPUT_POST, 'parameter', FILTER_SANITIZE_STRING);
// Use prepared statements: $stmt = $pdo->prepare('SELECT * FROM table WHERE column = ?');
// $stmt->execute([$input]);
🧯 If You Can't Patch
- Block external access to vulnerable PHP files via web server configuration or firewall rules
- Implement strict database user permissions with minimal privileges required for application functionality
🔍 How to Verify
Check if Vulnerable:
Test POST requests to contact_us.php, faq.php, about.php with SQL injection payloads like ' OR '1'='1 and monitor database responses.Check Version:
Check script version in admin panel or configuration files. No standard command available.Verify Fix Applied:
Attempt SQL injection attacks against patched files and verify they return error messages or sanitized responses instead of executing SQL.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to vulnerable PHP files with SQL keywords (SELECT, UNION, INSERT, etc.)
- Multiple failed login attempts or database errors in web server logs
- Unexpected database queries from web application user
Network Indicators:
- POST requests containing SQL injection patterns to /contact_us.php, /faq.php, etc.
- Unusual database traffic patterns from web server
SIEM Query:
source="web_server.log" AND (uri="/contact_us.php" OR uri="/faq.php" OR uri="/about.php") AND (message="*SELECT*" OR message="*UNION*" OR message="*INSERT*")