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Anthropic-Cybersecurity-Skills/skills/exploiting-websocket-vulnerabilities/references/api-reference.md
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mukul975 27c6414ca5 Add folder anatomy (scripts/agent.py + references/api-reference.md) for 648 cybersecurity skills
Complete skill folder anatomy across all cybersecurity skills:
- scripts/agent.py: 80-150 line Python agents using real libraries (impacket,
  boto3, azure-mgmt-*, kubernetes, pefile, yara, scapy, shodan, stix2, etc.)
- references/api-reference.md: real API documentation with method signatures
- LICENSE: MIT license for all skill folders
2026-03-10 21:02:12 +01:00

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# API Reference: WebSocket Vulnerability Assessment Agent
## Dependencies
| Library | Version | Purpose |
|---------|---------|---------|
| websockets | >=11.0 | Async WebSocket client for connection and message testing |
| requests | >=2.28 | HTTP-level WebSocket handshake inspection |
## CLI Usage
```bash
python scripts/agent.py \
--url wss://target.example.com/ws \
--cookie "session=abc123" \
--output ws_report.json
```
## Functions
### `discover_ws_endpoints(base_url) -> list`
Probes 9 common WebSocket paths with upgrade headers to find endpoints.
### `test_origin_validation(ws_url, cookie) -> dict`
Sends WebSocket upgrade requests with evil Origin headers. Acceptance indicates CSWSH risk.
### `test_no_auth_connect(ws_url) -> dict` (async)
Attempts WebSocket connection without any authentication tokens.
### `test_message_injection(ws_url, cookie) -> list` (async)
Sends 6 injection payloads (SQLi, XSS, SSTI, path traversal, command injection) and checks responses.
### `test_idor_channels(ws_url, cookie, channel_ids) -> list` (async)
Subscribes to channels 1-5 to test for IDOR in channel access.
### `test_rate_limiting(ws_url, cookie, count) -> dict` (async)
Sends 100 rapid messages and checks if the connection is throttled or closed.
### `run_assessment(ws_url, cookie) -> dict`
Orchestrates all tests and compiles findings.
## websockets Library Usage
| Method | Purpose |
|--------|---------|
| `websockets.connect(url, extra_headers)` | Async context manager for WS connection |
| `ws.send(data)` | Send a text frame |
| `ws.recv()` | Receive next frame |
| `asyncio.wait_for(ws.recv(), timeout)` | Receive with timeout |
## Output Schema
```json
{
"target": "wss://target.example.com/ws",
"origin_validation": {"cswsh_vulnerable": true},
"unauthenticated_access": {"connected": false},
"injection_tests": [{"payload": {"query": "' OR 1=1--"}, "suspicious": true}],
"rate_limiting": {"rate_limited": false},
"findings": ["HIGH: Cross-Site WebSocket Hijacking possible"]
}
```