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Check out the most popular posts on Dreamhack!Questions Everyone Wants to Learn From
These are questions that many users have checked. Do you have similar questions in mind?
I even printed out the address of stdout through the Write () function and copied it to libc. After that, put's got was covered with the address of the main function so that the input could be repeated. (If the main function jumps to a different offset, the stack alignment is broken and the binary ends, so it unconditionally jumps to the starting address of the main function.)
Second payload
I understand that when (int), the first digit is not a number, it changes to 0.
However, if all of the randomly generated $charaters are numbers
How can I find out $id?
! [] (https://dreamhack-media.s3.amazonaws.com/attachments/deb1d7cd3fe37d1513340738698ff22654a3d64d7d961e07633bd4aac6343236.png)
###1. Exploit code
1-1. local
from pwn import*
libc_start_main_
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The Hackers' Playground Dreamhack is a hackers' playground for
students who want to learn about hacking and cybersecurity,
developers aiming to write secure code,
and security professionals looking to upgrade their knowledge and skills.
Here, you can study, practice, share knowledge,
and improve your expertise together.
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