1 00:00:00,570 --> 00:00:01,010 Hi. 2 00:00:01,620 --> 00:00:08,400 Currently, we are in Banda 21, and if you're on that list, as you can see, there is nothing here. 3 00:00:08,400 --> 00:00:13,520 So we want to go to 22 and I'm going to open the tips for that. 4 00:00:14,190 --> 00:00:15,500 So here you go. 5 00:00:15,540 --> 00:00:23,490 It says that the program is running automatically at regular intervals from Chrom, the time based job 6 00:00:23,490 --> 00:00:24,280 scheduler. 7 00:00:24,630 --> 00:00:33,390 So if you have never heard about Chrom before Tinkham as like a background service that is running over 8 00:00:33,390 --> 00:00:35,820 there in a given period of time. 9 00:00:36,360 --> 00:00:43,860 So we have to look into it, see Kirundi in order to see the configuration for that Chron and see what 10 00:00:43,860 --> 00:00:44,550 it does. 11 00:00:45,180 --> 00:00:53,760 So basically, if you want callisthenics or any other Linux versions to run a background jump that does 12 00:00:53,760 --> 00:00:59,700 something in a given period of time, then you should actually have a current job. 13 00:01:00,090 --> 00:01:03,110 This is exactly what this so let me show you. 14 00:01:03,120 --> 00:01:08,700 I'm going to go into KDDI at Sea Kirundi, as it's instructed over here. 15 00:01:08,850 --> 00:01:13,500 If you're on Al-Saleh, you can see that we have some crohn jobs. 16 00:01:13,500 --> 00:01:18,050 So these are all jobs that run in a certain period of time. 17 00:01:18,060 --> 00:01:23,970 We don't know whether it's running like every day or every hour, every minute. 18 00:01:24,130 --> 00:01:25,460 We don't know that yet. 19 00:01:25,800 --> 00:01:32,200 We're going to see what they do and we will try to get a password for the next level from them. 20 00:01:32,880 --> 00:01:38,940 So over here, it says that you look at the configuration and see what it does show. 21 00:01:38,940 --> 00:01:41,000 I'm going to try and get this distance. 22 00:01:41,430 --> 00:01:45,470 So I'm going to catch the first one, which has been the 15 route. 23 00:01:45,720 --> 00:01:55,020 And as you can see, it's owned by the route and it's actually running this as H and it's saving the 24 00:01:55,020 --> 00:01:57,780 output into there now, which is nothing. 25 00:01:57,960 --> 00:02:06,030 OK, so it's actually erasing getting rid of the output, but it's actually running this S.H. file. 26 00:02:06,420 --> 00:02:12,870 So maybe if we can find DSH file this Besch script, we can get a lead over there. 27 00:02:13,230 --> 00:02:19,290 However, we're trying to go into Bendit 22, so I'm going to get that one as well. 28 00:02:19,470 --> 00:02:22,390 And as you can see, that that is the same thing, actually. 29 00:02:22,410 --> 00:02:25,320 So this is owned by Bendit 22. 30 00:02:25,740 --> 00:02:29,650 And over here we see Bendat 22, that S.H. as well. 31 00:02:30,030 --> 00:02:31,500 So there's been the twenty two. 32 00:02:31,500 --> 00:02:35,260 S.H. might actually give us the lead that we are looking for. 33 00:02:35,850 --> 00:02:37,270 So Bendit 15. 34 00:02:37,290 --> 00:02:42,780 Maybe it has something to do with the level 15, but we passed that right. 35 00:02:42,790 --> 00:02:45,020 So we don't need that anymore. 36 00:02:45,390 --> 00:02:51,590 So I'm going to focus on this band, the 22 S.H. and see if we can get something out of it. 37 00:02:52,410 --> 00:02:54,330 So Bendit 17. 38 00:02:54,330 --> 00:02:57,620 I believe there was something in the band 17 as well. 39 00:02:58,020 --> 00:03:05,320 But again, we we can just go along and just deal with the other ones from now on. 40 00:03:06,270 --> 00:03:18,990 So let's go and chat this Bendit 20 to MSH user bin Cronje up and then the 22 that H and no such file 41 00:03:18,990 --> 00:03:20,120 or directory. 42 00:03:20,610 --> 00:03:21,510 Yeah, here you go. 43 00:03:21,510 --> 00:03:25,050 I believe I misspelled the Cronje up rather than Cronje up. 44 00:03:25,410 --> 00:03:31,380 I actually have written Bruinooge up, so make sure you get that right. 45 00:03:31,380 --> 00:03:35,070 Right that again and try to just get this out. 46 00:03:36,030 --> 00:03:37,680 So here you go. 47 00:03:37,680 --> 00:03:43,560 Let me just copy it from here or just, just change the beat to see like that. 48 00:03:44,160 --> 00:03:45,080 And here you go. 49 00:03:45,270 --> 00:03:47,280 So this is a bad script. 50 00:03:47,280 --> 00:03:51,780 So this is the Shabangu and it changes something. 51 00:03:51,780 --> 00:03:55,320 It changes a permission of a temporary file. 52 00:03:55,740 --> 00:03:58,560 So as you can see, this is a temporary file. 53 00:03:58,830 --> 00:04:01,500 At least it's in the copy directory. 54 00:04:01,740 --> 00:04:04,500 It changes the permission to six four four. 55 00:04:04,830 --> 00:04:09,150 OK, so we have done that before, as you might remember. 56 00:04:09,540 --> 00:04:16,620 And later on it Katsuta at Seben the password for Bendit twenty two, which is what we are looking for 57 00:04:16,890 --> 00:04:24,510 and also saves the output to that particular file that has been created before. 58 00:04:24,990 --> 00:04:26,730 So it's pretty easy. 59 00:04:26,730 --> 00:04:30,480 I believe it gets the Bendit Pass. 60 00:04:30,780 --> 00:04:35,580 So if we get this temp file over there, just copy and paste it. 61 00:04:35,590 --> 00:04:36,750 You cannot write this. 62 00:04:36,750 --> 00:04:37,620 It's too long. 63 00:04:38,010 --> 00:04:40,590 Let me come over here and paste this election. 64 00:04:40,770 --> 00:04:48,150 We can get the password because it has been read by the band, the twenty two user, and also it has 65 00:04:48,150 --> 00:04:52,890 been saved in the temp directory that that particular file. 66 00:04:52,890 --> 00:04:53,280 Right. 67 00:04:53,700 --> 00:04:59,680 So I'm going to copy this and come over here and then I know my password, the. 68 00:05:00,320 --> 00:05:08,870 And just save it over there, so I'm going to pace this and just ride level 22 like that, so far so 69 00:05:08,870 --> 00:05:09,240 good. 70 00:05:09,260 --> 00:05:18,740 So it actually, as you can see, this was related to grown jobs, but we haven't done so much with 71 00:05:18,740 --> 00:05:19,760 the grown ups yet. 72 00:05:19,910 --> 00:05:26,480 I believe the upcoming lectures will be on Crohn jobs as well, since we have seen Kronur Bandit 23, 73 00:05:26,480 --> 00:05:29,040 24 and 25 over there as well. 74 00:05:29,600 --> 00:05:33,050 So let's see if this is really the case over there. 75 00:05:33,050 --> 00:05:36,440 So I'm going to open the 22 to 23. 76 00:05:37,100 --> 00:05:37,830 Here you go. 77 00:05:38,540 --> 00:05:41,270 So a program is running automatically. 78 00:05:41,300 --> 00:05:42,940 Again, we have a current job. 79 00:05:43,250 --> 00:05:46,750 OK, so it says I look at in at secondees. 80 00:05:47,000 --> 00:05:48,050 So the same thing. 81 00:05:48,050 --> 00:05:51,590 I'm going to go directly into it secondees, OK? 82 00:05:51,860 --> 00:05:53,510 And I'm going to run Al-Saleh. 83 00:05:53,660 --> 00:05:56,120 So we're going to see same things one more time. 84 00:05:56,120 --> 00:06:00,560 But this time I believe we have to focus on Kronur Bandit 23. 85 00:06:01,100 --> 00:06:03,170 So I'm going to catch this thing. 86 00:06:03,170 --> 00:06:04,820 Cronje Up Bandit 23. 87 00:06:05,330 --> 00:06:06,620 And here you go. 88 00:06:06,620 --> 00:06:12,510 We have the best script one more time, so I'm going to get this one and see what it does. 89 00:06:12,560 --> 00:06:16,720 OK, so I'm going to cut and paste selection over here. 90 00:06:17,090 --> 00:06:18,680 So here you go. 91 00:06:18,720 --> 00:06:20,320 An interesting one. 92 00:06:20,660 --> 00:06:22,790 So this is the best script one more time. 93 00:06:22,790 --> 00:06:26,830 It starts with Shabangu and it does something different. 94 00:06:26,870 --> 00:06:30,800 So this particularly stands for the Shabangu. 95 00:06:30,800 --> 00:06:33,110 So it says that this is a bad script. 96 00:06:33,290 --> 00:06:36,800 OK, so even without it, it will be fine. 97 00:06:36,920 --> 00:06:42,700 But we generally place that in order to say that this is a bad script to the users. 98 00:06:42,830 --> 00:06:44,530 So apparently it runs. 99 00:06:44,540 --> 00:06:45,250 Who am I? 100 00:06:45,380 --> 00:06:51,250 And as you can see, if we were on the way, my it gives the current user, which has been the 22, 101 00:06:51,890 --> 00:06:57,820 so it makes my equal to a variable called my name. 102 00:06:58,340 --> 00:07:04,670 So if you know any programming languages, I hope you do at least Python or something like that. 103 00:07:05,270 --> 00:07:07,100 You know what a variable is. 104 00:07:07,130 --> 00:07:11,660 So my name is a variable that holds the value of who am I at this point? 105 00:07:11,900 --> 00:07:15,860 And then my target is Disvalue Echo. 106 00:07:15,890 --> 00:07:17,560 I am user my name. 107 00:07:18,200 --> 00:07:22,270 So Echo means print it out and I am user. 108 00:07:22,280 --> 00:07:32,000 My name is the Wanita at this point and it pipes it to the fivesome later on it cuts said it's formatted 109 00:07:32,030 --> 00:07:36,650 a little bit so maybe you don't know how to work with these commands. 110 00:07:36,650 --> 00:07:38,510 Maybe you haven't worked it before. 111 00:07:39,020 --> 00:07:45,380 But let me just continue for right now and then it echoes the password thingee. 112 00:07:45,380 --> 00:07:51,530 It says that password file Etsi Bendit pass my name to Tempy, my target. 113 00:07:52,130 --> 00:08:02,420 So as you might have understand by now, it actually copies the current user's password to attempt folder 114 00:08:02,420 --> 00:08:06,290 into a file that we don't know yet. 115 00:08:06,710 --> 00:08:12,250 And that file can be inferred from the my target variable. 116 00:08:12,650 --> 00:08:18,410 So if we can calculate the value of the my target's variable, then we can just cut it out, right? 117 00:08:18,830 --> 00:08:28,790 So all we have to do is just understand how to actually calculate is my target and we can do that in 118 00:08:28,790 --> 00:08:29,500 the terminal. 119 00:08:29,510 --> 00:08:37,460 You don't have to know everything about it because we know the my name, my name variable will be equal 120 00:08:37,460 --> 00:08:38,090 to Bendit. 121 00:08:38,090 --> 00:08:38,870 Twenty three. 122 00:08:39,140 --> 00:08:46,070 Remember this will be called by the Bendit twenty three and it couldn't find the command. 123 00:08:46,080 --> 00:08:48,050 So let me just try it like this. 124 00:08:48,500 --> 00:08:50,030 Yeah, it hasn't been defined. 125 00:08:50,090 --> 00:08:52,490 I believe we have to lose the spaces. 126 00:08:52,760 --> 00:08:55,700 You're going to have to write my name Eco's to Bendit. 127 00:08:55,700 --> 00:09:00,770 Twenty three without any spaces like this banded twenty three. 128 00:09:01,640 --> 00:09:02,750 Yep it worked. 129 00:09:02,960 --> 00:09:09,290 So right now if I write another sign my name as you can see dollar sign my name gives me the banded 130 00:09:09,290 --> 00:09:15,050 twenty three right now of course it says that command not font because there is no comment such as bandha 131 00:09:15,060 --> 00:09:15,770 twenty three. 132 00:09:15,920 --> 00:09:20,390 But we managed to assign this to the banded twenty three. 133 00:09:20,750 --> 00:09:29,060 Now if I copied this ok and if I pasted over here then my name is already defined by us. 134 00:09:29,360 --> 00:09:35,870 Now it's going to actually echo this, it's going to actually print this out so that we can see the 135 00:09:35,870 --> 00:09:37,340 value of my target. 136 00:09:37,670 --> 00:09:38,750 And here you go. 137 00:09:38,990 --> 00:09:42,590 This is the value of my target variable. 138 00:09:43,310 --> 00:09:52,370 So I know what is going to be my target and it will copy the current password to the Tempy folder in 139 00:09:52,610 --> 00:09:54,340 that file. 140 00:09:54,380 --> 00:09:55,220 Here you go. 141 00:09:55,220 --> 00:09:59,480 Now we know the file name, so it's kind of a puzzle as you can. 142 00:09:59,490 --> 00:10:06,090 You see, and it's very interesting, so I'm going to cut that out and if I hit enter, here you go. 143 00:10:06,120 --> 00:10:09,270 This is the password for the next level. 144 00:10:09,900 --> 00:10:11,190 So I'm going to copy this. 145 00:10:11,540 --> 00:10:21,210 OK, I'm going to exit out of that one and I'm going to say Gene to 23 and then I'm just going to come 146 00:10:21,210 --> 00:10:25,230 over here, enter and just tried that. 147 00:10:25,680 --> 00:10:28,740 Let me come over here and paste the selection and hit enter. 148 00:10:28,740 --> 00:10:29,600 And here you go. 149 00:10:30,000 --> 00:10:32,150 We are inside of Bendit 23. 150 00:10:32,370 --> 00:10:34,940 I'm going to take a note of that as well. 151 00:10:35,040 --> 00:10:37,860 I'm going to paste over here as a level two and three. 152 00:10:38,820 --> 00:10:39,630 Great. 153 00:10:39,630 --> 00:10:42,780 We managed to make it into the level 23. 154 00:10:43,290 --> 00:10:45,690 We have, I believe, 10 to go. 155 00:10:45,960 --> 00:10:51,330 So I'm going to stop here and continue within the next one with level 24.