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Showing posts from December, 2017

Stealing $10,000 Yahoo Cookies!

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Hi, This is my second blog post. I recently started to script python, So I decided to write some recon script to filter out domains to attack first out of tens of thousands of Yahoo subdomains which promises some content since it doesn't seem feasible to visit each one of them. And it outputted https://premium.advertising.yahoo.com . Upon visiting and taking a look at intercepted requests, the page was interacting with api endpoints at https://api.advertising.yahoo.com using XmlHttpRequests and Cross origin resource sharing (CROS) technology . If you don't know much about CORS I would recommend you visit Burp Blog  . So in a Requests to https://api.advertising.yahoo.com/services/network/whoami , I saw alot of headers I see all day while looking into yahoo in response which kind of freaked me out. It was reflecting all my request header such as  `user agent`, `Accept`, and  `Cookie` like in following screenshot. Also any Parameters in GET requests were also gett