1 00:00:12,240 --> 00:00:14,910 Hey, guys, welcome back to another episode on How to Hack. 2 00:00:15,440 --> 00:00:20,460 So here we are back to Webcke as part of a Web application penetration testing series. 3 00:00:20,790 --> 00:00:26,430 And on the right side, we have client side attacks and you can go ahead and click on to HTML tampering. 4 00:00:27,090 --> 00:00:28,470 So here we are on the lesson. 5 00:00:28,500 --> 00:00:35,140 And a concept is that browsers generally allow us to edit change information as we submit them right 6 00:00:35,220 --> 00:00:40,530 into the Web application system for processing, either inputting into a database, updating the database, 7 00:00:40,530 --> 00:00:45,750 or even removing from the database, just like your shopping cart, just like all this different data 8 00:00:45,750 --> 00:00:50,700 that you may be inputting into an e-commerce site, a social media platform, your bank account. 9 00:00:51,570 --> 00:00:57,030 So moving on to lesson number two, Orizaba accuracy's, try herself in an online store. 10 00:00:57,030 --> 00:01:02,550 You ordered a new TV trying to buy one or more TVs for a lower price. 11 00:01:02,950 --> 00:01:06,390 OK, so over here we have the quantity and we have to price. 12 00:01:06,690 --> 00:01:08,370 And of course, we have a remove button. 13 00:01:08,820 --> 00:01:11,820 And of course, it help us add into subtotal. 14 00:01:11,820 --> 00:01:15,980 And over here we can see all this different information so you can go in and click on checkout. 15 00:01:16,770 --> 00:01:18,620 And of course, you get the fulling response. 16 00:01:18,990 --> 00:01:20,730 This is too expensive. 17 00:01:20,740 --> 00:01:23,460 You need to buy at a cheaper cost. 18 00:01:23,760 --> 00:01:29,640 So what we need to do is we need to be able to amend information that is being submitted from the browser 19 00:01:29,880 --> 00:01:31,530 into the Web application system. 20 00:01:31,710 --> 00:01:32,020 All right. 21 00:01:32,050 --> 00:01:37,170 So what we can do is to make use of web developer to help us launch the attack. 22 00:01:37,950 --> 00:01:42,780 So going to the right site, OK, we can go ahead and click on our menu and you can click on the web 23 00:01:42,780 --> 00:01:49,530 developer and you can click onto network or you can use the shortcut control siff e. 24 00:01:49,770 --> 00:01:50,760 So go in and click on it. 25 00:01:51,570 --> 00:01:52,320 And over here. 26 00:01:53,080 --> 00:01:53,400 All right. 27 00:01:53,400 --> 00:01:57,960 We can see the lesson manual, don't NBC and so on, so we can easily clear all of them. 28 00:01:58,020 --> 00:01:58,430 All right. 29 00:01:58,860 --> 00:02:00,590 And you can go in and click on Chacko. 30 00:02:00,810 --> 00:02:06,930 So once you do so we will have a following task, which is a post smattered and a status two hundred 31 00:02:07,350 --> 00:02:10,350 so you can go in and click on it and we have the parameters. 32 00:02:10,350 --> 00:02:13,500 So here we can see the quantity, the total number. 33 00:02:13,860 --> 00:02:16,920 And of course we have the response and the response is feedback. 34 00:02:17,460 --> 00:02:18,720 This is too expensive. 35 00:02:18,850 --> 00:02:21,000 You need to buy at a cheaper cost. 36 00:02:21,630 --> 00:02:22,890 So what we can do is do it right. 37 00:02:22,890 --> 00:02:26,610 Click OK on the left site and click under edit. 38 00:02:26,760 --> 00:02:28,890 And we said go ahead and click on it. 39 00:02:29,640 --> 00:02:34,430 And what we can do here is we can look at the request hater's and all this different information and 40 00:02:34,530 --> 00:02:36,360 we have to request body. 41 00:02:36,390 --> 00:02:40,610 So in this case we have cut WHI, which stands for quantity and total. 42 00:02:40,920 --> 00:02:45,360 So all you going to do is change in a man, any of the values under total. 43 00:02:45,420 --> 00:02:49,210 So in this case we're going to use two nine nine nine. 44 00:02:49,350 --> 00:02:49,550 All right. 45 00:02:49,590 --> 00:02:51,330 So once you're done with this you can go ahead. 46 00:02:51,450 --> 00:02:51,650 All right. 47 00:02:51,750 --> 00:02:53,110 And click send. 48 00:02:53,550 --> 00:02:53,800 All right. 49 00:02:53,850 --> 00:02:58,350 So once you're done with it, you can click onto the new task or you can double click on it. 50 00:02:58,710 --> 00:03:00,120 And it says over here, feedback. 51 00:03:00,120 --> 00:03:00,750 Well done. 52 00:03:01,230 --> 00:03:03,480 You just bought TV at a discount. 53 00:03:03,650 --> 00:03:03,760 Right? 54 00:03:03,780 --> 00:03:10,530 So immediately we'll be able to alter the way that we're sending data to and fro between the browser 55 00:03:10,530 --> 00:03:13,170 as well as the Web application system. 56 00:03:13,530 --> 00:03:16,350 So once again, I hope you've learned something valuable in today's tutorial. 57 00:03:16,650 --> 00:03:20,190 And if you've have any questions, feel free to leave a comment below and I'll try my best to answer 58 00:03:20,190 --> 00:03:21,240 any of your queries. 59 00:03:21,450 --> 00:03:26,460 And we'll like, share and subscribe to the channel so that you can be kept abreast of the latest cybersecurity 60 00:03:26,460 --> 00:03:26,790 tutorial. 61 00:03:26,970 --> 00:03:28,560 Thank you so much once again for watching.