Posted on mar. 02 juin 2020 in CTF • Tagged with hack, learn, ctf, tjctf, 2020, forensics
solves : 206
Points: 25 points
Written by jpes707
I recently designed a new flag for my imaginary nation, Hexistan. Do you like it?
The name gives us a hint: Hex. We have 7 differents colors in the pictures. Let's get the hexa code for each one: 746a6374667b70594a7266514b306462615450477d.
We have a …
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.....
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 …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}
We start to …
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 :
Ok, let's try steghide to get some information about the file:
$ steghide info rice-bowl.jpg
"rice-bowl …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.
Let's begging with some checks:
$ file right …Posted on mar. 31 décembre 2019 in CTF • Tagged with hack, learn, ctf, santhacklaus, forensics, docker, virutal
It looks like a naughty developer has been deploying a Docker image on a Santa production server a few days before Christmas. He was in a rush and was not able to properly pass all security checks on the built Docker image. Would be a shame if this image could …