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These are the user uploaded subtitles that are being translated: 1 00:00:01,960 --> 00:00:04,330 Let's start digging a little bit deeper. 2 00:00:04,510 --> 00:00:05,410 We've run Unmap. 3 00:00:05,410 --> 00:00:08,800 We've seen what ports are open what services are running behind the sports. 4 00:00:08,800 --> 00:00:12,600 We've even seen what versions these services have. 5 00:00:12,720 --> 00:00:14,090 But I want more information. 6 00:00:14,100 --> 00:00:19,980 I want to start finding what vulnerabilities that I can exploit and to do that as we've seen before 7 00:00:20,040 --> 00:00:24,000 we use an ability scanner and the hacking for beginner scores. 8 00:00:24,000 --> 00:00:28,120 We went over Nessus on Windows and they call it Linux tutorial. 9 00:00:28,140 --> 00:00:31,530 I showed you how to install Nessus on Kalli. 10 00:00:31,570 --> 00:00:36,840 So what I'm going to do now is I'm going to start the NSA service and I do that using these slashy ATC 11 00:00:36,970 --> 00:00:42,030 slash and ADOT the slash Nessus d start commands. 12 00:00:42,370 --> 00:00:47,870 Now that it's up and running I actually don't remember what port exactly the NSA service runs on. 13 00:00:48,370 --> 00:00:53,560 So I'm going to use one of the commands that we've learnt before which is then stack command to see 14 00:00:53,560 --> 00:00:55,930 what services are running on my machine. 15 00:00:56,840 --> 00:00:57,760 And here we go. 16 00:00:57,800 --> 00:00:58,340 There it is. 17 00:00:58,340 --> 00:01:05,500 This is the SSD running on board eight eighty four. 18 00:01:05,670 --> 00:01:11,070 So I've opened the page and you might notice that this looks a little bit different than the previous 19 00:01:11,070 --> 00:01:12,770 Nessus and the previous videos. 20 00:01:12,900 --> 00:01:17,070 And this is because this is an updated video with the latest Nessus version. 21 00:01:17,070 --> 00:01:18,960 So it does look a little bit different. 22 00:01:18,990 --> 00:01:23,600 However the core of it and how we do the scans is pretty much still exactly the same. 23 00:01:24,030 --> 00:01:29,400 I'm going to log in using my username and password that I created during the installation process. 24 00:01:30,450 --> 00:01:32,310 And I'm going to start and you scan 25 00:01:36,200 --> 00:01:40,620 you see here a lot of different options that we talk about in more advanced courses. 26 00:01:40,700 --> 00:01:46,700 For now all I'm going to do is I'm going to go with the basic network scan so I'm going to click on 27 00:01:46,700 --> 00:01:47,160 that. 28 00:01:47,180 --> 00:01:50,230 I'm going to name my scan at this floatable too. 29 00:01:50,240 --> 00:01:56,440 I'll leave that description empty and my target is the IP address of the disposable machine. 30 00:01:56,840 --> 00:01:57,980 I'll save it. 31 00:01:57,980 --> 00:02:01,180 And remember after you save it you need to launch the scan. 32 00:02:01,190 --> 00:02:03,220 It will not start automatically. 33 00:02:03,290 --> 00:02:08,780 So I'm going to launch it and you see now the green arrows spinning around telling me that the scan 34 00:02:08,780 --> 00:02:11,600 is running to see where my scan progresses. 35 00:02:11,600 --> 00:02:19,760 I can double click on it and if I want to go back I can go back to my scans so it's still running here. 36 00:02:19,760 --> 00:02:23,030 Notice the difference between the running and the completed scans. 37 00:02:23,220 --> 00:02:25,160 Let me double click on it again. 38 00:02:25,260 --> 00:02:26,760 And now you might see a slight difference. 39 00:02:26,760 --> 00:02:32,280 The Nessus graphical interface now so I can actually go and look at the vulnerabilities that the see 40 00:02:32,280 --> 00:02:35,400 what vulnerabilities have been discovered so far. 41 00:02:35,430 --> 00:02:37,480 Keep in mind that the scan is still running. 42 00:02:37,500 --> 00:02:40,910 So if I go back to my scans it's still going on. 43 00:02:40,920 --> 00:02:43,670 There will be more vulnerabilities to be discovered. 44 00:02:44,010 --> 00:02:49,410 I'm going to speed the video up a little bit and now that the scan is complete I can go to the vulnerabilities 45 00:02:49,440 --> 00:02:51,590 and start looking at them one by one. 46 00:02:53,030 --> 00:02:58,340 On the right hand side there's some scan details it tells me the name of the scan what the status is 47 00:02:58,730 --> 00:03:02,950 what their policy I use so I use the basic network scan here. 48 00:03:03,390 --> 00:03:04,090 The scanner. 49 00:03:04,130 --> 00:03:06,750 So this is if I'm using multiple scanners. 50 00:03:06,800 --> 00:03:07,630 When did it start. 51 00:03:07,640 --> 00:03:09,320 When did it end and how long it took. 52 00:03:09,320 --> 00:03:11,960 So in my case it took about seven minutes. 53 00:03:11,960 --> 00:03:16,970 Obviously I'm going to keep the video running for seven minutes so I just fast forward to the end of 54 00:03:16,970 --> 00:03:17,580 the scan. 55 00:03:17,630 --> 00:03:22,890 So don't be surprised if you see the scan taking a lot longer than the length of this video. 56 00:03:22,970 --> 00:03:28,310 You'll also notice that the vulnerabilities are grouped by criticality from the highest to the lowest 57 00:03:28,730 --> 00:03:31,910 critical risk is the highest and the ratings of criticality. 58 00:03:31,970 --> 00:03:36,670 Then you have under that the high medium low and info. 59 00:03:36,710 --> 00:03:43,040 Keep in mind though just because a vulnerability is medium or low that does not mean we get to ignore 60 00:03:43,040 --> 00:03:45,620 it and the hacking for beginners scores. 61 00:03:45,620 --> 00:03:52,160 We saw how we managed to break into our target using a low severity vulnerability for the purpose of 62 00:03:52,170 --> 00:03:52,650 the. 63 00:03:52,640 --> 00:03:57,810 However we're going to be focusing on some of the most critical ones because going through one hundred 64 00:03:57,810 --> 00:04:01,800 and eight vulnerabilities will end up dragging this video on for days. 65 00:04:01,820 --> 00:04:07,280 So let's focus on the more critical ones and to see the details of any vulnerability I can just click 66 00:04:07,280 --> 00:04:13,160 on it and read the description of what an attacker can do and what the results can be. 67 00:04:13,280 --> 00:04:19,760 Just to go back on the point of the criticality of vulnerabilities if I do a quick search for FTB you'll 68 00:04:19,760 --> 00:04:27,050 notice that Nessus returned only one finding which is the FTB server detection meaning that Messis managed 69 00:04:27,050 --> 00:04:29,630 to detect that that is NFD service running. 70 00:04:29,630 --> 00:04:36,830 However Mazur's did not tell me that this FTB the server that we just exploited is actually vulnerable. 71 00:04:36,950 --> 00:04:43,880 So for some reason whatever that reason might be Nessa's failed to detect that that particular FTB server 72 00:04:44,210 --> 00:04:46,810 is actually vulnerable and is exploitable. 73 00:04:46,820 --> 00:04:54,220 So for some particular reason mezzos failed to detect that this particular FTB server is vulnerable. 74 00:04:54,320 --> 00:04:58,310 Now again I do not want to concern you or myself with reason of why this happened. 75 00:04:58,310 --> 00:05:04,790 It could be that the scan got interrupted that the service crashed that the network is unreliable whatever 76 00:05:04,790 --> 00:05:10,560 it is and this is why we never ever rely on just one tool output. 77 00:05:10,850 --> 00:05:13,250 This is why we investigate using a map. 78 00:05:13,250 --> 00:05:14,980 We investigate using Nessus. 79 00:05:15,020 --> 00:05:20,630 We investigate manually by connecting to each service and we investigate using a lot of other tools 80 00:05:20,630 --> 00:05:21,450 as well. 81 00:05:21,680 --> 00:05:25,430 So do keep that in mind just because the vulnerability scanner does not say it's vulnerable. 82 00:05:25,490 --> 00:05:27,410 That does not mean it's not vulnerable. 8674