NoSQL Injection - CouchDB Scanner
Identifies CouchDB query injection and design document attacks.
What is NoSQL Injection - CouchDB?
CouchDB Injection vulnerabilities arise when untrusted input is incorporated into CouchDB queries, views, or design documents. CouchDB uses JavaScript for map/reduce functions and Mango queries for JSON-based querying. Attackers can exploit these to bypass security, extract data, or execute malicious JavaScript in the database context.
Why is This Important?
CouchDB's design documents contain JavaScript code that runs on the server. If attackers can modify design documents or inject into queries, they can execute arbitrary code, access all database documents, or create persistent backdoors. CouchDB's replication feature can also be abused to exfiltrate data.
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
What makes CouchDB injection unique?
CouchDB stores JavaScript code in design documents for views and validation. Injection can target Mango query selectors (similar to MongoDB) or, more dangerously, design document manipulation. CouchDB's replication feature adds another attack vector for data exfiltration.
How do attackers exploit CouchDB design documents?
If attackers can create or modify design documents, they can inject malicious JavaScript into map/reduce functions, validate_doc_update functions, or show/list functions. This code runs on the server with database privileges whenever the view is queried.
What is Mango query injection in CouchDB?
Mango is CouchDB's query language that uses JSON selectors similar to MongoDB. Attackers inject operators like $gt, $ne, $regex, or $or to manipulate query logic, bypass filters, or extract unauthorized data through crafted query selectors.
How do I prevent CouchDB injection?
Restrict design document creation to admins only, validate all input before using in queries, use CouchDB's built-in input validation, avoid constructing queries from string concatenation, keep CouchDB updated, and implement proper authentication and authorization.
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