In this tutorial, we are going to utilize Wireshark to sniff information packets as they are transmitted over the HTTP convention. For this example, we will sniff the traffic of the web application called “Mutillidae,” which does not utilize secure correspondence.
First, we need to use the “HTTP” filter to view all HTTP traffic on the screen. Then under the “Info” column, search for the HTTP verb POST entries and click on them. Below the log entries, there is an information panel with a summary of captured data. Look for the review that says “HTML Form URL Encoded:” and expand it. You should be able to see the plaintext values of all the POST parameters submitted to the server through the HTTP convention.
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