- Origin Domains - Content Delivery Networks (CDNs) are used to deliver website content/traffic more efficiently and reduce server load. - CDNs are *not* proxies for the real webserver--the real webserver is the origin. - Oftentimes, CDNs will block security testing payloads. Find the origin server and bypass the filtering/CDN. - Examples (for Akamai): - `origin-sub.domain.com` - `origin.sub.domain.com` - Try sending `Pragma: akamai-x-get-true-cache-key` - key often has origin in it - Things to look for: - Logins - Defaultcontent - Bypass domains (dev, qa, ww1,ww2,) - 302’s - Basic Auth - Old looking frameworks - Outdated Priv Pol / Trademark - Favicon analysis - Useful when you have a *ton* of webservers to analyze - fingerprint by the favicon - [FavFreak](https://github.com/devanshbatham/FavFreak) - Reporting guidelines: - Detailed enough to reproduce - Record your proof in case the issue gets fixed before your submission is triaged - Some orgs are more mature than others, it may take time – ask your triager - Autogenerated / autosubmitted reports are obvious especially if they lack any good information - Prove impact. Take it further if you can. Example: An XSS with a simple “alert(1)” could get you $50-100, but can you prove it’s more impactful? We love to see it!