ACM CTF-Walkthrough

Recently I have participated in a FUN cyber challenge competition “ACM Cyber challenge”. All the challenges(beginner friendly with graded difficulty)there were very interesting and it invokes your brain to look for solutions. Since competition was up till 24th November 2022,so I could not post my writeup before its get closed. So here is first series of writeup from that cyber challenge. I have tried to group solution in order of requirements, Like following two challenges requires scripting knowledge to solve

Challenge: 1(scripting)

On download the file ,we received a folder having two files “Script1.txt” and “script2.txt”.

Opening the script hints towards the challenge statement “memory”.so there has to be somethings missing /change inn both these script, now as the script is over 1500+ lines. Doing it manually is out of question.

so best solution left for me solve the challenge using my favorite “PYTHON”. Just the run the script there you can see the flag for the challenge.

you can look at the script below here:

Fun right!!! Lets move on second challenge

Challenge 2: TAR Pit

The challenge is bit baffling as its a recursive tar ball file and again python this time came to me as savior. On downloading the file we recived this file

On extracting the same,we again received a tar zip ball file

coded a python script for the challenge:

Running the script will easily get out flag!!! :)

That's all for this reading will bring another challenge writeup on this ctf soon.

hope you have some takeaway from this .

See Ya!!!