NoSQL Injection - MongoDB Scanner
Detects MongoDB-specific injection vulnerabilities in query operators.
What is NoSQL Injection - MongoDB?
MongoDB NoSQL Injection occurs when untrusted user input is directly incorporated into MongoDB queries without proper sanitization. Attackers exploit MongoDB's query operators like $gt, $ne, $where, and $regex to manipulate query logic, bypass authentication, or extract sensitive data. Unlike SQL injection, NoSQL injection targets JSON-based query syntax and JavaScript execution within the database.
Why is This Important?
MongoDB is one of the most popular NoSQL databases, powering millions of applications. NoSQL injection can bypass login forms, extract entire database contents, modify or delete data, and in some cases achieve remote code execution through the $where operator. Many developers assume NoSQL databases are immune to injection—this false assumption leads to widespread vulnerabilities.
How It Works
1. Input Discovery
Maps all user input points including forms, headers, cookies, and API parameters for injection testing.
2. Injection Testing
Executes sophisticated injection payloads designed to bypass filters and WAFs while detecting vulnerabilities.
3. Exploitation Validation
Confirms vulnerabilities through safe exploitation, providing proof-of-concept and impact assessment.
Key Capabilities
Advanced injection detection engine combining signature-based and AI-powered analysis for comprehensive coverage.
- Multi-vector injection testing across all input types
- WAF and filter bypass techniques built-in
- Database-specific payload optimization
- Out-of-band detection for blind vulnerabilities
- Automated proof-of-concept generation
Frequently Asked Questions
How is MongoDB injection different from SQL injection?
MongoDB injection exploits JSON query operators rather than SQL syntax. Instead of adding quotes and SQL keywords, attackers inject objects like {$ne: ''} or {$gt: ''} to manipulate query logic. The $where operator can also execute JavaScript code, creating additional attack vectors.
What are the most dangerous MongoDB operators?
The $where operator is most dangerous as it executes JavaScript. $regex allows ReDoS attacks. $gt, $ne, $in, and $or are commonly used for authentication bypass. The $lookup operator in aggregation pipelines can access other collections.
Can MongoDB injection lead to remote code execution?
Yes, in older MongoDB versions or specific configurations. The $where operator executes JavaScript, and if combined with database functions that interact with the OS, it can lead to RCE. Server-side JavaScript execution has been deprecated but may still be enabled.
How do I prevent MongoDB NoSQL injection?
Use parameterized queries with official MongoDB drivers, validate and sanitize all input, disable server-side JavaScript ($where) if not needed, use schema validation to enforce data types, implement proper access controls, and keep MongoDB updated.
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