TJCTF2020 - Ling Ling

Posted on mar. 02 juin 2020 in CTF • Tagged with hack, learn, ctf, tjctf, 2020, forensics

solves : 529

Points: 10

Written by KyleForkBomb

Who made this meme? I made this meme! unless.....

meme.png

We have an image. Like always now, just use exiftool to print all the metainfo that the file contains:

╰─ exiftool d25fe79e6276ed73a0f7009294e28c035437d7c7ffe2f46285e9eb5ac94b6bec_meme.png 
ExifTool Version Number         : 11.85
File Name                       : d25fe79e6276ed73a0f7009294e28c035437d7c7ffe2f46285e9eb5ac94b6bec_meme.png
[...]
Artist                          : tjctf{ch0p1n_fl4gs …

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TJCTF2020 - Login

Posted on mar. 02 juin 2020 in CTF • Tagged with hack, learn, ctf, tjctf, 2020, web, js, crackstation, md5

solves : 674

Points: 30

Written by saisree

Could you login into this very secure site? Best of luck!

We have a standard login page with some JS code inside to perform the login:

login1.png

We have a hash inside: c2a094f7d35f2299b414b6a1b3bd595a. Let's try it with crackstation. It detects it as MD5 and …


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TJCTF2020 - Moar Horse 4

Posted on mar. 02 juin 2020 in CTF • Tagged with hack, learn, ctf, tjctf, 2020, web, jwt, rs256, hs256, key

solves : 78

Points: 80

Written by nthistle

It seems like the TJCTF organizers are secretly running an underground virtual horse racing platform! They call it 'Moar Horse 4'... See if you can get a flag from it!

Source

server.zip

Since we have the source, let's take a loot into …


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TJCTF2020 - Rap God

Posted on mar. 02 juin 2020 in CTF • Tagged with hack, learn, ctf, tjctf, 2020, forensics

solves : 172

Points: 40

Written by rj9

My rapper friend Big Y sent me his latest track but something sounded a little off about it. Help me find out if he was trying to tell me something with it. Submit your answer as tjctf{message}

Audio file

We start to …


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TJCTF2020 - RSABC

Posted on mar. 02 juin 2020 in CTF • Tagged with hack, learn, ctf, tjctf, 2020, cryptography, rsa, rsactftool, python

solves : 415

Written by boomo

I was just listening to some relaxing ASMR when a notification popped up with this.

???

Hint: It's easy as R-S-A! Wait.. 

We have this informations:

n=57772961349879658023983283615621490728299498090674385733830087914838280699121
e=65537
c=36913885366666102438288732953977798352561146298725524881805840497762448828130

Ok, it's RSA. The challenge name and the informations confirm it. We can …


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TJCTF2020 - Sarah Palin Fanpage

Posted on mar. 02 juin 2020 in CTF • Tagged with hack, learn, ctf, tjctf, 2020, web, js, crackstation, md5

solves : 505

Points: 35 

Written by jpes707

Are you a true fan of Alaska's most famous governor? Visit the Sarah Palin fanpage.

sarahpalinfanpage_homepage.png

sarahpalinfanpage_blocked.png

So, we need to have the all likes but can't get more that 4 on the website. We can detect as spam. The source code doesn't help …


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TJCTF2020 - Tap Dancing

Posted on mar. 02 juin 2020 in CTF • Tagged with hack, learn, ctf, tjctf, 2020, crypto, cryptography, dance, morse

solves : 215

Points: 25

Written by agcdragon

My friend is trying to teach me to dance, but I am not rhythmically coordinated! They sent me a list of dance moves but they're all numbers! Can you help me figure out what they mean so I can learn the dance …

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TJCTF2020 - Titanic

Posted on mar. 02 juin 2020 in CTF • Tagged with hack, learn, ctf, tjctf, 2020, cryptography, movie, md5, titanic

solves : 256

Points: 35 

Written by jpes707

I wrapped tjctf{} around the lowercase version of a word said in the 1997 film "Titanic" and created an MD5 hash of it: 9326ea0931baf5786cde7f280f965ebb.

We have all the informations to find the clear text:

  • A word from the Titanic movie script: (here)[https …

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TJCTF2020 - Typewriter

Posted on mar. 02 juin 2020 in CTF • Tagged with hack, learn, ctf, tjctf, 2020, crypto, cryptography, keymap

solves : 395

Points: 30

Written by jpes707

Oh no! I thought I typed down the correct flag for this problem on my typewriter, but it came out all jumbled on the paper. Someone must have switched the inner hammers around! According to the paper, the flag is zpezy{ktr_gkqfut_hxkhst_tyukokkgotyt_hoftqhhst_ykxoz_qxilrtxiyf}.

Hint …

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TJCTF2020 - Weak Password

Posted on mar. 02 juin 2020 in CTF • Tagged with hack, learn, ctf, tjctf, 2020, web, sqli, blind, sqlmap

solves : 204

Points: 20 

Written by saisree

It seems your login bypass skills are now famous! One of my friends has given you a challenge: figure out his password on this site. He's told me that his username is admin, and that his password is made of up only …

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