Hey people, in this blog we will see what is XXE attack infusion and show some basic model assaults, and lastly sum up this post with techniques to prevent XML External Entity Vulnerability.
XML External Entity XXE technically is a vulnerability that permits the hacker to find or view the data from the internal file systems of the application server and can use this glitch or security gap to assess internal ports of the server of the aimed application that is Server-Side Request Forgery (SSRF) assaults.
In day-by-day commitment with a large number of the financial customers utilizing the XML formatters to communicate the information between the server and the browser. A large portion of the developers does not know about the issues on the off chance that they permit XML external entities XXE in the application.
XML formatter uses and how is it different from HTML?
XML is an extensible markup language that is utilized to store and ship the data while HTML is utilized for formatting and displaying the data.
The Basic Syntax of the XML
Default XML Syntax
XXE ATTACK SCENARIO
Imagine there is a search box in the application to look for flight booking. At whatever point the client enters the keywords in the field, it will send the XML formatted data to the application server. In the event that we catch the request in Burp Suite that request looks like the following as appearing in the picture:
BASIC XML FORMAT
Detecting the XXE Attack
With the below request, let us have a look if the ..
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