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‫So let's start at burb and open a proxy tab.

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‫New tabs are opened under proxy.

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‫And the proxy tool is pretty much the heart of the sweet.

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‫And by using this tool, we can manually analyze HTTP messages.

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‫So to accomplish this, we need to configure burb as well as the Web browser to work together.

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‫All right, so let's go to the options tab.

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‫So here's the basic setting for intercepting.

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‫By proxy works as a man in the middle proxy right between the Web browser and the remote server.

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‫So that means a proxy is going to listen to a report on the local machine and we are going to redirect

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‫all browser traffic to that port.

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‫So that means that we need to arrange a port for burb to listen.

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‫But it has a default configuration on Port 80, 80, as you can see here, it listens on Port 80, 80

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‫on the local machine.

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‫And here, one two seven zero zero to one points to your local machine called Linux.

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‫Of course, you can change this configuration using the buttons on the left hand side.

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‫You can easily add, modify or remove listening port or you can always restore to the default configuration.

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‫So after arranging the listening port, the next thing is to define the interception rules.

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‫So Burb provides a rule-based mechanism to intercept traffic directed by the Web browser.

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‫So this way you can focus only on the request that you want to capture.

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‫And you can add, delete or modify any rule by using the buttons on the left.

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‫But for now, we don't need to add any rule.

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‫But when you're doing real tests, I believe you will need it and burb also has the same mechanism for

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‫intercepting server responses.

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‫So you can define or modify rules for your pen test.

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‫But you do need to check this box to enable intercepting responses first.

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‫See, now you can define more granular rules.

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‫OK, so now let's go to the intercept tap.

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‫So this is the main tab that you will display and intercepted HTP message you.

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‫And this button globally enables or disables intercepting HDB messages to analyze manually.

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‫So thanks to these default configurations, we really don't have to do much more.

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‫I did want to give you a little tour, so Berp is ready to work.

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‫So let's open your browser.

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‫And I will assume that you are using callisthenics.

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‫And Kelly has Firefox and Chromium for browsing the web.

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‫As I said before, I'm going to use Firefox as my main browser.

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‫Of course, you can follow these same steps for any other browser.

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‫It's up to you.

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‫It is going to look a little different.

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‫OK, so now I'm opening Firefox preferences from the menu.

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‫And scrolling down below, click the settings button under the network proxy section.

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‫So this window, Firefox enables us to use proxies.

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‫And you can configure their use, so this is the first time that you're opening up here, you probably

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‫will get these settings.

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‫OK, so we need to enable Firefox to redirect all the traffic to port AT&T.

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‫And don't forget the burleson's listens on this port, so check the manual proxy configuration.

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‫Typed the IP address of your local machine, which is one two seven zero zero one.

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‫And the port is 88 and then check this box to send, so it also sends https traffic to berp now before

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‫saving the setting, delete this entry here.

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‫Because it will prevent the redirect local traffic to proxy.

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‫And nothing to add then save.

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‫So now open a new browser tab.

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‫OK, is Barbizon intercept mode?

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‫The browser redirects the traffic to berp, now go to the vulnerable applications login page.

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‫And I'll click this bookmark.

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‫And see, as soon as you have the address, Burke gets a request.

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‫So this is just an HTTP request, as you remember from the previous videos.

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‫So now, after capturing the request, you can do several things.

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‫By using this action button, you can send this request to other tools for further analysis.

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‫Or you can say the request and do many other things with you, and if you are finished with a request,

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‫then you can either drop or forward their request.

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‫So I'm going to forward it.

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‫And then see how immediately catches the associated response message.

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‫So this is a raw response message matters first and then the body of the message comes.

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‫Now clicking on the headers tab, you can display just the headers of this message.

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‫And you can also perform some of the same actions here.

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‫And then when you're done with a response, you can forward or drop it.

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‫So, again, I'm going to forward it.

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‫Now, because berp is in this interception mode, it's also going to intercept some other requests as

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‫well.

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‫So I'm going to forward all of them.

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‫And then finally, the login page is displayed in the browser.

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‫So burb also holds the history information for us.

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‫So let's go to the history tab and click on any request.

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‫And so you'll find the details about that request.

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‫So this is how we intercept HTP messages with the proxy tool.

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‫For better interception experience, we can install a Firefox add on so we can easily redirect the traffic

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‫to burb.

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‫Now, while Penn testing, it's not necessarily efficient to change the proxy settings from Firefox

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‫each time, right.

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‫So what do I do?

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‫I advise you to use a proxy ext.

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‫I'm going to use Foxe proxy and I'll show you how to install it.

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‫But first, let's disable berp interception.

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‫And disable Firefox internal proxy settings.

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‫OK, so now let's go to the Firefox add ONS website.

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‫Let me just zoom in on the page for you.

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‫And type Foxe proxy and the search field.

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‫Click the first result.

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‫Then click add to Firefox.

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‫And click, add.

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‫OK, so it gets installed very quickly.

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‫So after installation, you see this icon in the toolbar.

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‫Click options.

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‫Now, from this page, we can add proxy's to Foxe proxy.

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‫And then later on, we can switch between them very quickly.

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‫So click and I'll put it in the title Berp.

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‫IP addresses are a local machine, 127000 one and port is AT&T.

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‫Like that, you can also assign a color.

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‫So save it.

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‫OK, so we added the configuration.

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‫Then you can close this tab.

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‫And quickly, icon.

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‫And what do you see the configurations listed here?

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‫Now click to activate this configuration, so I think it's really a timesaver.

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‫And go to be Web login page.

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‫And yeah, Berp intercepts a request again.

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‫Forward the messages.

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‫Now I'm going to disable proxy to send traffic to berp.

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‫And there it is, it's just that easy.

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‫So click another page and you can see.

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‫The traffic is not redirected to berp anymore.

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‫Oh, and one last thing to say here, with default browser usage, you will see many unrelated messages

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‫in Inbar, for example, browsers, safe browsing requests, captive portal requests, crashes and reports.

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‫So don't be disturbed by all these messages caused by these features, but you can disable them.

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‫In fact, I recommend it go to about config.

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‫And confirm the message that pops up.

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‫And change the settings that I'll show you here over on the right side.