Let's talk about golang's 'hijacking request” mechanism

In recent years, with the popularity of web applications, malicious attackers have gradually become more and more numerous. Dealing with these attacks has become a very important issue in the web development process. One type of attack is called "hijacked requests." Hijacking requests refers to an attack method in which an attacker obtains the target program's request without obtaining authorization and permission from the target web application, and achieves deception by forging request data. With the widespread use of the golang language, the risk of hijacking requests has gradually expanded. At this time, we need to find solutions to hijack requests.

The emergence of Golang provides an efficient and fast solution for Web applications. At the same time, because of the characteristics of golang, there is a certain security guarantee. However, in real application scenarios, hijacking requests still exist, which shows that even Golang web applications are vulnerable to hijacking requests. In this case, we need to have a deeper understanding of the mechanisms of hijacked requests and how to avoid them.

First of all, the main principle of hijacking requests is not difficult to understand. Attackers forge network request data without authorization to achieve fraud. Here's an example. Suppose there is an online education website that allows user registration through POST requests. An attacker can use a fake POST request to request registration information from the website, and the web application will think that this is a request from a legitimate user, and then store the submitted data for the purpose of deception. This attack is very dangerous and if web applications are not detected and filtered, user privacy and security will be at risk.

So, how to avoid the attack of hijacking requests? Golang provides a solution to effectively protect web applications from hijacking requests. This method is called "CSRF Token".

CSRF Token is an effective means to prevent hijacking request attacks. By generating a special token in the submitted form and comparing this token in the background, hijacking request attacks can be effectively prevented. In golang, you can use an open source middleware called "gorilla/csrf" to achieve this function.

Install gorilla/csrf middleware

First, you need to install the "gorilla/csrf" middleware in your golang application, use the following command:

$ go get github. com/gorilla/csrf

This command will install the "gorilla/csrf" middleware and its dependencies.

Generate CSRF Token

It is very simple to use gorilla/csrf to generate CSRF Token in golang. Add the "csrf.Field()" function to the form to generate the token. For example:

{{ csrf.Field }}

Verify CSRF Token

In the background, token verification is also very simple using gorilla/csrf middleware. Just add a function to verify the token in the function that handles the HTTP request. For example:

import (
"github.com/gorilla/csrf"
"net/http"
)

func HandlerFunc(w http.ResponseWriter, r * http.Request) {
if ok := csrf.Protect(

[]byte("32-byte-long-auth-key"),

)(w, r); !ok {

return

}

// Processing Request
}

In this example, the Protect() function will verify the CSRF Token received from the Token field in the POST request. If the token is invalid, HTTP processing is blocked and an HTTP error code is returned.

With these two pieces of code, the web application has the function of preventing hijacking request attacks.

In this way, we can avoid attacks that hijack requests and improve the security of web applications. Of course, this is only a means of protecting Web applications. We also need to strengthen security awareness and increase security measures during the Web development process. Only in this way can we better protect web applications, avoid intrusions by malicious attackers, and protect user privacy and security. (1809 words)

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