Showing posts from August, 2016

Blind OOB XXE At UBER 26+ Domains Hacked.

XXE (XML External Entity) :
An XML External Entity attack is a type of attack against an application that parses XML input. This attack occurs when XML input containing a reference to an external entity is processed by a weakly configured XML parser. This attack may lead to the disclosure of confidential data, denial of service, server side request forgery, port scanning from the perspective of the machine where the parser is located, and other system impacts.

This is the story of how I was able to find XXE in one of the UBER'S Website that was in Bug Bounty Program Scope.

On July 26th 2016 Evening I was working on domain ubermovement Web Application.
As it was a small webapp there were no too much parameter to run injections tests. I started the old school tests and the first parameter I came across was the Search Box.

Now, I Attached my Burp Suite then gave a keyword to search and started monitoring the requests...

In Directory "search" I got two requests.
1.The Keyword …