HackTM Quals20 - Prison Break

Posted on mer. 05 février 2020 in CTF • Tagged with hack, learn, ctf, hacktm, quals, 2020, rsa, cryptography, looking

solves : 92

Prison Break
119 Points

Author: FeDEX

Your friend has been captured by some country's secret services and is being held in a prison. Having reached the prison, you realise there is a code there that you need to break.
The enemies have been kind enough to leave …

Continue reading

HackTM Quals20 - Romanian Gibberish

Posted on mer. 05 février 2020 in CTF • Tagged with hack, learn, ctf, hacktm, quals, 2020, misc

solves : 711

Romanian Gibberish
25 Points

https://en.wikipedia.org/wiki/Gibberish_(language_game)

HapackTM{Wepelcopomepe_Topo_HAPACKTMCTF_2020!}
Gibberish (sometimes Jibberish) is a language game that is played in the United States and Canada. Similar games are played in many other countries. The name Gibberish refers to the nonsensical sound of words spoken …

Continue reading

HackTM Quals20 - RSA is easy #1

Posted on mer. 05 février 2020 in CTF • Tagged with hack, learn, ctf, hacktm, quals, 2020, rsa, cryptography

solves : 279

RSA is easy #1
50 Points

Author: stackola

challenge_files.zip a6ba5325c1a34910db0f4e8cce82f5bd

We got two files in the zip:

$ zipinfo challenge_files.zip 
Archive:  challenge_files.zip
Zip file size: 5533 bytes, number of entries: 3
drwxr-xr-x  3.0 unx        0 bx stor 20-Jan-15 17:07 challenge_files/
-rw-r--r--  3.0 …

Continue reading

HackTM Quals20 - RSA is easy #2

Posted on mer. 05 février 2020 in CTF • Tagged with hack, learn, ctf, hacktm, quals, 2020, rsa, cryptography

solves : 157

RSA is easy #2
50 Points

Provide the flag in this format:

HackTM{words_you_found}

Example:
If you find "i am a flag"
submit:
HackTM{i_am_a_flag}

Author: stackola

challenge_files_2.zip bebe0b93b184fd375c3462488c9fde01

Same as RSA is easy #1, we have exactly the same python script but with a new c …


Continue reading

HackTM Quals20 - The dragon sleeps at night

Posted on mer. 05 février 2020 in CTF • Tagged with hack, learn, ctf, hacktm, quals, 2020, misc, rpg, game

solves : 332

The dragon sleeps at night
50 Points

I made this console based dragon RPG.
Go kill the beast!

nc 138.68.67.161 60004

Author: stackola

We have a role play and need to slay the dragon to discover the flag.

$ nc 138.68.67.161 60004
Welcome …

Continue reading

RTCP2020

Posted on dim. 26 janvier 2020 in CTF • Tagged with hack, learn, ctf, rtcp, rice, tea, cat, panda, rex

🍚🍵🐈🐼 - CTFTime

Rice Tea Cat Panda CTF was a CTF during 5 days and first edition. I really enjoyed it. Challenges, peoples, ambiance, everything was amazing.

I want to thanks a lot all the admins (Jess Fan, Tida Ngov, Vihan Bhargava, Jess (the other one)/J) and I'm waiting for the …


Continue reading

RTCP - 15

Posted on sam. 25 janvier 2020 in CTF • Tagged with hack, learn, ctf, rtcp, rice, tea, cat, panda, cryptography

solves : 552

Point : 100

Lhzdwt eceowwl: Dhtnwt Pcln Eaao Qwoohvw

Okw qsyo okcln bah'i fslo cl baht Dhtnwt Pcln dhtnwt cy yazwalw'y eaao ehlnhy. Dho sy co ohtly aho, okso zcnko dw fkso bah nwo. S 4vksllwt hmqasiwi s mkaoa slalbzahyqb oa okw ycow ykafvsycln kcy ewwo cl …

Continue reading

RTCP - BASmati ricE 64

Posted on sam. 25 janvier 2020 in CTF • Tagged with hack, learn, ctf, rtcp, rice, tea, cat, panda, forensics, image, jpg, file

solves : 38

Point : 150

There's a flag in that bowl somewhere...

Replace all zs with _ in your flag and wrap in rtcp{...}.

We have a nice bowl of rice as the file :

rice-bowl.jpg

Ok, let's try steghide to get some information about the file:

$  steghide info  rice-bowl.jpg
"rice-bowl …

Continue reading

RTCP - Chugalug's Footpads

Posted on sam. 25 janvier 2020 in CTF • Tagged with hack, learn, ctf, rtcp, rice, tea, cat, panda, forensics, image, jpg, file, hex

solves : 174

Point : 150

Chugalug makes footpads that he can chug and lug. However, his left one is different from his right... I wonder why?

We have two images and need to find the flag from this two files without any other hint.

right.jpg

left.jpg

Let's begging with some checks:

$ file right …

Continue reading

RTCP - Code On

Posted on sam. 25 janvier 2020 in CTF • Tagged with hack, learn, ctf, rtcp, rice, tea, cat, panda, cryptography, adn, mrna, biology

solves : 154

Point : 500

My houseplant and I were working on a biology assignment together. Yes, my houseplant. Don't question it. Anyways, she ended up giving me a new cipher to use in my next project! So I'm giving it to my biology friends to see if they …

Continue reading