Tags: injection cmd 

Rating:

# HACKME - 453 pts

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### Description

##### can you please just hack me, I will execute all your commands but only 4 chars in length

##### author: pop_eax
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From the challenge discription we can say this is related to [COMMAND INJECTION](https://portswigger.net/web-security/os-command-injection) vulnerability.

```Command injection is an attack in which the goal is execution of arbitrary commands on the host operating system via a vulnerable application.```


Visiting the given URL we land at this page...

![HOME PAGE](images/1.png)

So we can pass our commands using `?cmd` argument and to reset the session use
`?reset`

At first i checked which dir im currently in and what are the files are available

![CORE](images/2.png)

and there was an EXECUTABLE (core) then i just executed `cat *` and got the flag...

![FLAG](images/3.png)

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`flag{ju57_g0tt@_5pllt_Em3012}`

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But this wasnt the intended way, it was patched afterwards. Stil the admins counted this XD.

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Original writeup (https://github.com/terawhiz/CTF-Writeups/blob/main/0x41414141-CTF/web/hackme/README.md#hackme---453-pts).