infra-blue

University of Catania

Italy

Start Here

11 / 12 4959 / 42792


Using the Terminal

Time of First Successful Submission: 2025-09-25 13:16:18

Using the VSCode Workspace

Time of First Successful Submission: 2025-09-25 13:17:43

Using the GUI Desktop

Time of First Successful Submission: 2025-09-25 13:19:54

Pasting into the Desktop

Time of First Successful Submission: 2025-09-25 13:21:10

Restarting Challenges

Time of First Successful Submission: 2025-09-25 13:22:09

Challenge Programs

Time of First Successful Submission: 2025-09-25 13:08:55

The Flag File

Time of First Successful Submission: 2025-09-25 13:10:48

Using Privileged Mode

Time of First Successful Submission: 2025-09-25 13:13:29

Persistent Home Directories - One

Time of First Successful Submission: 2025-09-25 13:15:22

Persistent Home Directories - Two

Time of First Successful Submission: 2025-09-25 13:15:43


Playing With Programs

70 / 116 3187 / 23272


What's the password?

Time of First Successful Submission: 2025-09-22 21:55:57

... and again!

Time of First Successful Submission: 2025-09-22 22:00:39

Newline Troubles

Time of First Successful Submission: 2025-09-22 22:08:35

Reasoning about files

Time of First Successful Submission: 2025-09-22 22:18:47

Specifying Filenames

Time of First Successful Submission: 2025-09-22 22:21:00

Binary and Hex Encoding

Time of First Successful Submission: 2025-09-23 09:58:54

More Hex

Time of First Successful Submission: 2025-09-23 10:06:24

Decoding Hex

Time of First Successful Submission: 2025-09-23 10:23:30

Decoding Practice

Time of First Successful Submission: 2025-09-23 12:43:49

Encoding Practice

Time of First Successful Submission: 2025-09-23 12:46:35

Hex-encoding ASCII

Time of First Successful Submission: 2025-09-23 13:11:30

Nested Encoding

Time of First Successful Submission: 2025-09-23 13:14:37

Hex-encoding UTF-8

Time of First Successful Submission: 2025-09-23 13:29:04

UTF Mixups

Time of First Successful Submission: 2025-09-23 13:26:24

Modifying Encoded Data

Time of First Successful Submission: 2025-09-23 13:46:00

Decoding Base64

Time of First Successful Submission: 2025-09-23 13:49:09

Encoding Base64

Time of First Successful Submission: 2025-09-23 13:56:46

Dealing with Obfuscation

Time of First Successful Submission: 2025-09-23 14:02:59

Dealing with Obfuscation 2

Time of First Successful Submission: 2025-09-23 14:07:30

cat

Time of First Successful Submission: 2025-09-23 16:27:23

more

Time of First Successful Submission: 2025-09-23 16:27:56

less

Time of First Successful Submission: 2025-09-23 16:28:21

tail

Time of First Successful Submission: 2025-09-23 16:29:10

head

Time of First Successful Submission: 2025-09-23 16:29:26

sort

Time of First Successful Submission: 2025-09-23 16:29:48

vim

Time of First Successful Submission: 2025-09-23 16:30:35

emacs

Time of First Successful Submission: 2025-09-23 16:31:04

nano

Time of First Successful Submission: 2025-09-23 16:31:55

rev

Time of First Successful Submission: 2025-09-23 16:32:56

od

Time of First Successful Submission: 2025-09-23 16:34:57

hd

Time of First Successful Submission: 2025-09-23 16:38:16

xxd

Time of First Successful Submission: 2025-09-23 16:39:44

base32

Time of First Successful Submission: 2025-09-23 16:42:56

base64

Time of First Successful Submission: 2025-09-23 16:43:25

split

Time of First Successful Submission: 2025-09-23 16:45:15

gzip

Time of First Successful Submission: 2025-09-23 16:58:02

bzip2

Time of First Successful Submission: 2025-09-23 17:00:56

zip

Time of First Successful Submission: 2025-09-23 17:07:44

tar

Time of First Successful Submission: 2025-09-23 17:22:33

ar

Time of First Successful Submission: 2025-09-23 17:26:42

cpio

Time of First Successful Submission: 2025-09-23 19:26:54

genisoimage

Time of First Successful Submission: 2025-09-24 13:27:44

env

Time of First Successful Submission: 2025-09-24 13:29:39

find

Time of First Successful Submission: 2025-09-24 13:30:51

make

Time of First Successful Submission: 2025-09-24 13:31:46

nice

Time of First Successful Submission: 2025-09-24 13:33:21

timeout

Time of First Successful Submission: 2025-09-24 13:34:12

stdbuf

Time of First Successful Submission: 2025-09-24 13:39:48

setarch

Time of First Successful Submission: 2025-09-24 13:41:15

watch

Time of First Successful Submission: 2025-09-24 13:42:51

socat

Time of First Successful Submission: 2025-09-24 14:09:40

whiptail

Time of First Successful Submission: 2025-09-24 14:37:56

awk

Time of First Successful Submission: 2025-09-24 14:39:04

sed

Time of First Successful Submission: 2025-09-24 14:39:31

ed

Time of First Successful Submission: 2025-09-24 14:41:25

chown

Time of First Successful Submission: 2025-09-24 14:42:32

chmod

Time of First Successful Submission: 2025-09-24 14:43:04

cp

Time of First Successful Submission: 2025-09-24 14:46:31

mv

Time of First Successful Submission: 2025-09-25 12:15:28

perl

Time of First Successful Submission: 2025-09-25 12:19:32

python

Time of First Successful Submission: 2025-09-25 12:20:58

ruby

Time of First Successful Submission: 2025-09-25 12:22:31

bash

Time of First Successful Submission: 2025-09-25 12:23:23

date

Time of First Successful Submission: 2025-09-25 12:23:53

dmesg

Time of First Successful Submission: 2025-09-25 12:24:45

wc

Time of First Successful Submission: 2025-09-25 12:38:17

gcc

Time of First Successful Submission: 2025-09-25 12:38:57

as

Time of First Successful Submission: 2025-09-25 12:39:25

wget

Time of First Successful Submission: 2025-09-25 12:49:25

ssh-keygen

Time of First Successful Submission: 2025-09-25 13:04:47


GCA CTF

11 / 104 5129 / 43069


Using the Terminal

Time of First Successful Submission: 2025-09-25 13:16:18

Using the VSCode Workspace

Time of First Successful Submission: 2025-09-25 13:17:43

Using the GUI Desktop

Time of First Successful Submission: 2025-09-25 13:19:54

Pasting into the Desktop

Time of First Successful Submission: 2025-09-25 13:21:10

Restarting Challenges

Time of First Successful Submission: 2025-09-25 13:22:09

Getting Help

Time of First Successful Submission: 2025-09-25 13:24:30

Challenge Programs

Time of First Successful Submission: 2025-09-25 13:08:55

The Flag File

Time of First Successful Submission: 2025-09-25 13:10:48

Using Privileged Mode

Time of First Successful Submission: 2025-09-25 13:13:29

Persistent Home Directories - One

Time of First Successful Submission: 2025-09-25 13:15:22

Persistent Home Directories - Two

Time of First Successful Submission: 2025-09-25 13:15:43