CVE-2021-44866
📋 TL;DR
This CVE describes a SQL injection vulnerability in Online-Movie-Ticket-Booking-System 1.0 where the about.php file fails to validate the 'id' parameter. Attackers can inject malicious SQL queries to extract sensitive database information. Anyone running this specific PHP application version is affected.
💻 Affected Systems
- Online-Movie-Ticket-Booking-System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including user credentials, payment information, and administrative access leading to data theft and system takeover.
Likely Case
Extraction of sensitive user data like usernames, emails, and potentially hashed passwords from the database.
If Mitigated
Limited information disclosure if database permissions are properly restricted and sensitive data is encrypted.
🎯 Exploit Status
SQL injection is a well-known attack vector with many automated tools available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: https://github.com/projectworldsofficial/Online-Movie-Ticket-Booking-System-in-php/issues/6
Restart Required: No
Instructions:
1. Review the GitHub issue for community fixes
2. Manually implement input validation and parameterized queries in about.php
3. Sanitize all user inputs before database interaction
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd server-side validation to sanitize the 'id' parameter before processing
Modify about.php to include: $id = filter_var($_GET['id'], FILTER_SANITIZE_NUMBER_INT);
Web Application Firewall (WAF)
allDeploy WAF rules to block SQL injection patterns
Configure WAF to block requests containing SQL keywords like UNION, SELECT, INSERT, DELETE when in about.php parameters
🧯 If You Can't Patch
- Implement network segmentation to isolate the vulnerable system
- Deploy database monitoring to detect unusual query patterns
🔍 How to Verify
Check if Vulnerable:
Test about.php with SQL injection payloads like: about.php?id=1' OR '1'='1Check Version:
Check application version in source code or configuration filesVerify Fix Applied:
Test with same payloads and verify they are rejected or sanitized📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in PHP logs
- Multiple failed login attempts following SQL injection patterns
Network Indicators:
- HTTP requests to about.php with SQL keywords in parameters
- Unusual database query patterns from web server
SIEM Query:
source="web_logs" AND uri="*about.php*" AND (param="*UNION*" OR param="*SELECT*" OR param="*INSERT*")