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Added a method type.

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Infected Drake 2019-02-28 09:45:18 +05:30 committed by GitHub
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@ -48,7 +48,7 @@ Feel free to [contribute](CONTRIBUTING.md).
## Testing Methodology: ## Testing Methodology:
### Where To Look: ### Where To Look:
- Always look out for common ports that expose that a WAF `80`, `443`, `8000`, `8008`, `8080`, `8088`. - Always look out for common ports that expose that a WAF, namely `80`, `443`, `8000`, `8008`, `8080`, `8088` ports.
> __Tip:__ You can use automate this easily by commandline using a screenshot taker like [WebScreenShot](https://github.com/maaaaz/webscreenshot). > __Tip:__ You can use automate this easily by commandline using a screenshot taker like [WebScreenShot](https://github.com/maaaaz/webscreenshot).
- Some WAFs set their own cookies in requests (eg. Citrix Netscaler, Yunsuo WAF). - Some WAFs set their own cookies in requests (eg. Citrix Netscaler, Yunsuo WAF).
- Some associate themselves with separate headers (eg. Anquanbao WAF, Amazon AWS WAF). - Some associate themselves with separate headers (eg. Anquanbao WAF, Amazon AWS WAF).
@ -61,15 +61,16 @@ Feel free to [contribute](CONTRIBUTING.md).
To identify WAFs, we need to (dummy) provoke it. To identify WAFs, we need to (dummy) provoke it.
1. Make a normal GET request from a browser, intercept and test response headers (specifically cookies). 1. Make a normal GET request from a browser, intercept and test response headers (specifically cookies).
2. Make a request from command line (eg. cURL), and test response content and headers (no user-agent included). 2. Make a request from command line (eg. cURL), and test response content and headers (no user-agent included).
3. If there is a login page somewhere, try some common (easily detectable) payloads like `" or 1 = 1 --`. 3. Make GET requests to random open ports and grab banners which might expose the WAFs identity.
4. If there is some input field somewhere, try with noisy payloads like `<script>alert()</script>`. 4. If there is a login page somewhere, try some common (easily detectable) payloads like `" or 1 = 1 --`.
5. Attach a dummy `../../../etc/passwd` to a random parameter at end of URL. 5. If there is some input field somewhere, try with noisy payloads like `<script>alert()</script>`.
6. Append some catchy keywords like `' OR SLEEP(5) OR '` at end of URLs to any random parameter. 6. Attach a dummy `../../../etc/passwd` to a random parameter at end of URL.
6. Make GET requests with outdated protocols like `HTTP/0.9` (`HTTP/0.9` does not support POST type queries). 7. Append some catchy keywords like `' OR SLEEP(5) OR '` at end of URLs to any random parameter.
7. Many a times, the WAF varies the `Server` header upon different types of interactions. 8. Make GET requests with outdated protocols like `HTTP/0.9` (`HTTP/0.9` does not support POST type queries).
8. Drop Action Technique - Send a raw crafted FIN/RST packet to server and identify response. 9. Many a times, the WAF varies the `Server` header upon different types of interactions.
10. Drop Action Technique - Send a raw crafted FIN/RST packet to server and identify response.
> __Tip:__ This method could be easily achieved with tools like [HPing3](http://www.hping.org) or [Scapy](https://scapy.net). > __Tip:__ This method could be easily achieved with tools like [HPing3](http://www.hping.org) or [Scapy](https://scapy.net).
9. Side Channel Attacks - Examine the timing behaviour of the request and response content. 11. Side Channel Attacks - Examine the timing behaviour of the request and response content.
## WAF Fingerprints ## WAF Fingerprints
Wanna detect WAFs? Lets see how. Wanna detect WAFs? Lets see how.