Which type of attack modifies the fields that contain the different characteristics of the data that is being transmitted?

An HTTP Header attack

Explanation:

In web applications an HTTP refers to Hypertext Transfer Protocol and an HTTP Header is the value that is displayed in  a request or response message, the header has a name and a value separated by a colon.

An HTTP header attack called an header injection is a vulnerability that is present when users' inputs are required for the dynamic generation of HTTP headers. This vulneraility allows several security threats to be carried out, some examples are:

professionals can use many types of technology that can them. some examples are, computers (they research and can use for programs for data, they are also used for job applications, school work, and even to make new ideas), speedometers (can get data for unknown data), sometimes something as small as a pen (used for rough drafts, to insert data, and again job applications).