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1 / 202 22401 / 22795


Triple Dereference

Time of First Successful Submission: 2026-01-27 14:36:12


Intro to Programming Languages

15 / 234 7838 / 32000


Commands

Time of First Successful Submission: 2026-01-19 12:43:44

Command Arguments

Time of First Successful Submission: 2026-01-19 12:47:34

Command History

Time of First Successful Submission: 2026-01-19 12:48:27

The Root Path

Time of First Successful Submission: 2026-01-19 12:49:39

Absolute Paths

Time of First Successful Submission: 2026-01-19 12:51:31

Changing position

Time of First Successful Submission: 2026-01-19 12:53:05

Changing to an Absolute Path

Time of First Successful Submission: 2026-01-19 12:55:33

Relative Paths

Time of First Successful Submission: 2026-01-19 13:02:02

Cat

Time of First Successful Submission: 2026-01-19 13:08:11

Ls

Time of First Successful Submission: 2026-01-19 13:15:10

Ls All

Time of First Successful Submission: 2026-01-19 13:23:34

Find

Time of First Successful Submission: 2026-01-19 13:38:32

Piping Echo

Time of First Successful Submission: 2026-01-20 15:12:56

Piping Stdout

Time of First Successful Submission: 2026-01-20 15:16:04

Piping Stdin

Time of First Successful Submission: 2026-01-20 15:37:13


Intro to Cybersecurity

27 / 183 9217 / 20045


Path Traversal 1

Time of First Successful Submission: 2026-02-27 16:09:52

Path Traversal 2

Time of First Successful Submission: 2026-02-27 16:21:24

CMDi 1

Time of First Successful Submission: 2026-02-27 16:57:30

CMDi 2

Time of First Successful Submission: 2026-02-27 17:12:31

CMDi 3

Time of First Successful Submission: 2026-02-28 19:02:19

CMDi 4

Time of First Successful Submission: 2026-02-28 19:23:01

CMDi 5

Time of First Successful Submission: 2026-03-01 12:23:54

CMDi 6

Time of First Successful Submission: 2026-03-01 12:35:22

Authentication Bypass 1

Time of First Successful Submission: 2026-03-02 14:52:16

Authentication Bypass 2

Time of First Successful Submission: 2026-03-02 15:06:36

SQLi 1

Time of First Successful Submission: 2026-03-03 15:00:37

SQLi 2

Time of First Successful Submission: 2026-03-03 15:11:31

SQLi 3

Time of First Successful Submission: 2026-03-04 13:59:13

SQLi 4

Time of First Successful Submission: 2026-03-04 14:14:05

SQLi 5

Time of First Successful Submission: 2026-03-04 14:29:01

XSS 1

Time of First Successful Submission: 2026-03-07 15:55:44

XSS 2

Time of First Successful Submission: 2026-03-07 16:21:37

XSS 3

Time of First Successful Submission: 2026-03-07 16:47:40

XSS 4

Time of First Successful Submission: 2026-03-07 16:53:47

XSS 5

Time of First Successful Submission: 2026-03-22 16:01:09

XSS 6

Time of First Successful Submission: 2026-03-22 16:10:43

XSS 7

Time of First Successful Submission: 2026-03-22 16:40:50

CSRF 1

Time of First Successful Submission: 2026-03-23 16:03:50

CSRF 2

Time of First Successful Submission: 2026-03-23 16:20:05

CSRF 3

Time of First Successful Submission: 2026-03-25 15:05:43

CSRF 4

Time of First Successful Submission: 2026-03-25 16:06:11

CSRF 5

Time of First Successful Submission: 2026-03-25 16:41:19


Start Here

10 / 12 19217 / 43378


Using the Terminal

Time of First Successful Submission: 2025-11-09 13:29:59

Using the VSCode Workspace

Time of First Successful Submission: 2025-04-02 09:07:36

Using the GUI Desktop

Time of First Successful Submission: 2025-04-02 09:12:17

Pasting into the Desktop

Time of First Successful Submission: 2025-11-09 13:37:40

Restarting Challenges

Time of First Successful Submission: 2025-11-09 13:41:18

Challenge Programs

Time of First Successful Submission: 2025-11-09 13:42:54

The Flag File

Time of First Successful Submission: 2025-11-09 13:50:53

Using Privileged Mode

Time of First Successful Submission: 2026-01-19 12:33:43

Persistent Home Directories - One

Time of First Successful Submission: 2026-01-19 12:38:26

Persistent Home Directories - Two

Time of First Successful Submission: 2026-01-19 12:40:33


Linux Luminarium

128 / 128 1680 / 32409


Intro to Commands

Time of First Successful Submission: 2026-01-19 12:43:44

Intro to Arguments

Time of First Successful Submission: 2026-01-19 12:47:34

Command History

Time of First Successful Submission: 2026-01-19 12:48:27

The Root

Time of First Successful Submission: 2026-01-19 12:49:39

Program and absolute paths

Time of First Successful Submission: 2026-01-19 12:51:31

Position thy self

Time of First Successful Submission: 2026-01-19 12:53:05

Position elsewhere

Time of First Successful Submission: 2026-01-19 12:55:33

implicit relative paths, from /

Time of First Successful Submission: 2026-01-19 13:02:02

explicit relative paths, from /

Time of First Successful Submission: 2026-01-19 13:03:11

implicit relative path

Time of First Successful Submission: 2026-01-19 13:04:16

home sweet home

Time of First Successful Submission: 2026-01-19 13:07:08

cat: not the pet, but the command!

Time of First Successful Submission: 2026-01-19 13:08:11

catting absolute paths

Time of First Successful Submission: 2026-01-19 13:08:48

more catting practice

Time of First Successful Submission: 2026-01-19 13:09:46

grepping for a needle in a haystack

Time of First Successful Submission: 2026-01-19 13:11:14

comparing files

Time of First Successful Submission: 2026-01-19 13:14:22

listing files

Time of First Successful Submission: 2026-01-19 13:15:10

touching files

Time of First Successful Submission: 2026-01-19 13:18:14

removing files

Time of First Successful Submission: 2026-01-19 13:18:56

moving files

Time of First Successful Submission: 2026-01-19 13:21:19

copying files

Time of First Successful Submission: 2026-01-19 13:22:53

hidden files

Time of First Successful Submission: 2026-01-19 13:23:34

An Epic Filesystem Quest

Time of First Successful Submission: 2026-01-19 13:34:03

making directories

Time of First Successful Submission: 2026-01-19 13:36:16

finding files

Time of First Successful Submission: 2026-01-19 13:38:32

linking files

Time of First Successful Submission: 2026-01-19 13:44:59

Learning From Documentation

Time of First Successful Submission: 2026-01-19 13:47:19

Learning Complex Usage

Time of First Successful Submission: 2026-01-19 13:51:18

Reading Manuals

Time of First Successful Submission: 2026-01-19 13:54:27

Searching Manuals

Time of First Successful Submission: 2026-01-19 13:59:35

Searching For Manuals

Time of First Successful Submission: 2026-01-19 14:07:33

Helpful Programs

Time of First Successful Submission: 2026-01-19 14:09:19

Help for Builtins

Time of First Successful Submission: 2026-01-19 14:11:08

Matching with *

Time of First Successful Submission: 2026-01-20 14:42:24

Matching with ?

Time of First Successful Submission: 2026-01-20 14:44:25

Matching with []

Time of First Successful Submission: 2026-01-20 14:49:44

Matching paths with []

Time of First Successful Submission: 2026-01-20 14:52:05

Multiple globs

Time of First Successful Submission: 2026-01-20 14:54:50

Mixing globs

Time of First Successful Submission: 2026-01-20 14:59:16

Exclusionary globbing

Time of First Successful Submission: 2026-01-20 15:04:21

Tab completion

Time of First Successful Submission: 2026-01-20 15:05:35

Multiple options for tab completion

Time of First Successful Submission: 2026-01-20 15:09:58

Tab completion on commands

Time of First Successful Submission: 2026-01-20 15:10:59

Redirecting output

Time of First Successful Submission: 2026-01-20 15:12:56

Redirecting more output

Time of First Successful Submission: 2026-01-20 15:16:04

Appending output

Time of First Successful Submission: 2026-01-20 15:22:36

Redirecting errors

Time of First Successful Submission: 2026-01-20 15:33:56

Redirecting input

Time of First Successful Submission: 2026-01-20 15:37:13

Grepping stored results

Time of First Successful Submission: 2026-01-20 15:38:41

Grepping live output

Time of First Successful Submission: 2026-01-20 15:39:30

Grepping errors

Time of First Successful Submission: 2026-01-20 15:47:19

Filtering with grep -v

Time of First Successful Submission: 2026-01-20 15:48:43

Filtering with sed

Time of First Successful Submission: 2026-01-20 15:57:05

Duplicating piped data with tee

Time of First Successful Submission: 2026-01-20 16:04:35

Process substitution for input

Time of First Successful Submission: 2026-01-20 16:18:55

Writing to multiple programs

Time of First Successful Submission: 2026-01-20 16:32:06

Split-piping stderr and stdout

Time of First Successful Submission: 2026-01-20 16:44:35

Named pipes

Time of First Successful Submission: 2026-01-20 17:08:45

Printing Variables

Time of First Successful Submission: 2026-01-22 12:30:55

Setting Variables

Time of First Successful Submission: 2026-01-22 12:35:02

Multi-word Variables

Time of First Successful Submission: 2026-01-22 12:37:12

Exporting Variables

Time of First Successful Submission: 2026-01-22 12:43:39

Printing Exported Variables

Time of First Successful Submission: 2026-01-22 12:44:08

Storing Command Output

Time of First Successful Submission: 2026-01-22 12:45:37

Reading Input

Time of First Successful Submission: 2026-01-22 13:05:13

Reading Files

Time of First Successful Submission: 2026-01-22 13:20:00

Translating characters

Time of First Successful Submission: 2026-01-22 13:23:30

Deleting characters

Time of First Successful Submission: 2026-01-22 13:25:17

Deleting newlines

Time of First Successful Submission: 2026-01-22 13:26:59

Extracting the first lines with head

Time of First Successful Submission: 2026-01-22 13:32:09

Extracting specific sections of text

Time of First Successful Submission: 2026-01-22 13:36:39

Sorting data

Time of First Successful Submission: 2026-01-22 13:38:15

Listing Processes

Time of First Successful Submission: 2026-01-22 14:05:33

Killing Processes

Time of First Successful Submission: 2026-01-22 14:09:14

Interrupting Processes

Time of First Successful Submission: 2026-01-22 14:10:16

Killing Misbehaving Processes

Time of First Successful Submission: 2026-01-22 14:32:56

Suspending Processes

Time of First Successful Submission: 2026-01-22 14:36:40

Resuming Processes

Time of First Successful Submission: 2026-01-22 14:37:45

Backgrounding Processes

Time of First Successful Submission: 2026-01-22 14:50:43

Foregrounding Processes

Time of First Successful Submission: 2026-01-22 14:52:47

Starting Backgrounded Processes

Time of First Successful Submission: 2026-01-22 14:53:51

Process Exit Codes

Time of First Successful Submission: 2026-01-22 15:02:31

Becoming root with su

Time of First Successful Submission: 2026-01-22 15:15:04

Other users with su

Time of First Successful Submission: 2026-01-22 15:16:06

Cracking passwords

Time of First Successful Submission: 2026-01-22 15:31:43

Using sudo

Time of First Successful Submission: 2026-01-22 15:37:26

Changing File Ownership

Time of First Successful Submission: 2026-01-22 15:58:52

Groups and Files

Time of First Successful Submission: 2026-01-22 16:18:38

Fun With Groups Names

Time of First Successful Submission: 2026-01-22 16:20:38

Changing Permissions

Time of First Successful Submission: 2026-01-22 16:31:54

Executable Files

Time of First Successful Submission: 2026-01-22 16:33:28

Permission Tweaking Practice

Time of First Successful Submission: 2026-01-22 16:38:04

Permissions Setting Practice

Time of First Successful Submission: 2026-01-22 16:42:01

The SUID Bit

Time of First Successful Submission: 2026-01-22 16:46:56

Chaining with Semicolons

Time of First Successful Submission: 2026-01-23 08:09:02

Building on Success

Time of First Successful Submission: 2026-01-23 08:09:56

Handling Failure

Time of First Successful Submission: 2026-01-23 08:10:38

Your First Shell Script

Time of First Successful Submission: 2026-01-23 08:15:53

Redirecting Script Output

Time of First Successful Submission: 2026-01-23 08:20:06

Executable Shell Scripts

Time of First Successful Submission: 2026-01-23 08:22:53

Understanding Shebangs

Time of First Successful Submission: 2026-01-23 08:31:29

Scripting with Arguments

Time of First Successful Submission: 2026-01-23 08:34:41

Scripting with Conditionals

Time of First Successful Submission: 2026-01-23 08:54:33

Scripting with Default Cases

Time of First Successful Submission: 2026-01-23 08:56:43

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-01-23 09:00:02

Reading Shell Scripts

Time of First Successful Submission: 2026-01-23 09:01:12

Launching Screen

Time of First Successful Submission: 2026-01-24 14:47:02

Detaching and Attaching

Time of First Successful Submission: 2026-01-24 14:49:11

Finding Sessions

Time of First Successful Submission: 2026-01-24 14:50:45

Switching Windows

Time of First Successful Submission: 2026-01-24 14:52:56

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-01-24 15:13:54

Switching Windows (tmux)

Time of First Successful Submission: 2026-01-24 15:15:53

The PATH Variable

Time of First Successful Submission: 2026-01-24 15:19:29

Setting PATH

Time of First Successful Submission: 2026-01-24 15:24:14

Finding Commands

Time of First Successful Submission: 2026-01-24 15:27:19

Adding Commands

Time of First Successful Submission: 2026-01-24 15:36:25

Hijacking Commands

Time of First Successful Submission: 2026-01-24 15:44:17

Bashrc Backdoor

Time of First Successful Submission: 2026-01-24 15:56:14

Sniffing Input

Time of First Successful Submission: 2026-01-24 16:21:49

Overshared Directories

Time of First Successful Submission: 2026-01-24 16:45:19

Tricky Linking

Time of First Successful Submission: 2026-01-24 16:52:52

Sniffing Process Arguments

Time of First Successful Submission: 2026-01-24 16:57:42

Snooping on Configurations

Time of First Successful Submission: 2026-01-24 17:01:47

The Fork Bomb

Time of First Successful Submission: 2026-01-24 17:16:37

Disk-Space Doomsday

Time of First Successful Submission: 2026-01-24 17:19:42

rm -rf /

Time of First Successful Submission: 2026-01-24 17:27:05

Life after rm -rf /

Time of First Successful Submission: 2026-01-24 17:35:17

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-01-24 17:44:42


Computing 101

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Your First Register

Time of First Successful Submission: 2026-01-27 08:50:40

Your First Syscall

Time of First Successful Submission: 2026-01-27 08:55:05

Exit Codes

Time of First Successful Submission: 2026-01-27 08:57:06

Building Executables

Time of First Successful Submission: 2026-01-27 09:10:02

Moving Between Registers

Time of First Successful Submission: 2026-01-27 09:17:37

Loading From Memory

Time of First Successful Submission: 2026-01-27 14:04:26

More Loading Practice

Time of First Successful Submission: 2026-01-27 14:05:17

Dereferencing Pointers

Time of First Successful Submission: 2026-01-27 14:08:55

Dereferencing Yourself

Time of First Successful Submission: 2026-01-27 14:22:25

Dereferencing with Offsets

Time of First Successful Submission: 2026-01-27 14:24:12

Stored Addresses

Time of First Successful Submission: 2026-01-27 14:27:13

Double Dereference

Time of First Successful Submission: 2026-01-27 14:34:52

The Stack

Time of First Successful Submission: 2026-02-18 14:25:30

Stack Offsets

Time of First Successful Submission: 2026-02-18 14:29:55

Program Arguments on the Stack

Time of First Successful Submission: 2026-02-18 14:36:11

Popping From the Stack

Time of First Successful Submission: 2026-02-18 14:41:33

Disassembling Programs

Time of First Successful Submission: 2026-02-18 14:47:17

Tracing Syscalls

Time of First Successful Submission: 2026-01-27 13:57:59

Starting GDB

Time of First Successful Submission: 2026-01-27 13:59:09

Quitting GDB

Time of First Successful Submission: 2026-02-18 14:48:05

Starting Programs in GDB

Time of First Successful Submission: 2026-01-27 14:01:27

Disassembling in GDB

Time of First Successful Submission: 2026-02-18 14:49:29

Stepping Through Instructions

Time of First Successful Submission: 2026-02-18 14:53:27

Reading Register Values

Time of First Successful Submission: 2026-02-18 14:54:25

Popping Stack Values

Time of First Successful Submission: 2026-02-18 14:56:06

Examining Memory

Time of First Successful Submission: 2026-02-18 14:58:12

Examining Stack Pointers

Time of First Successful Submission: 2026-02-18 15:02:08

Cooperative Debugging

Time of First Successful Submission: 2026-02-18 15:07:18

Writing Output

Time of First Successful Submission: 2026-01-27 14:44:27

Chaining Syscalls

Time of First Successful Submission: 2026-01-27 14:46:21

Writing Strings

Time of First Successful Submission: 2026-01-27 14:46:52

Reading Data

Time of First Successful Submission: 2026-01-27 14:54:15

Opening Files

Time of First Successful Submission: 2026-02-18 15:25:55

Hardcoding the Filename

Time of First Successful Submission: 2026-02-18 15:31:51

Comparing Values

Time of First Successful Submission: 2026-02-18 16:00:51

Comparing Characters

Time of First Successful Submission: 2026-02-18 16:27:25

Conditional Control Flow

Time of First Successful Submission: 2026-02-18 16:30:09

Comparing Strings

Time of First Successful Submission: 2026-02-18 16:31:44

Reverse the Password

Time of First Successful Submission: 2026-02-18 16:36:12

Conditionals Without Conditionals

Time of First Successful Submission: 2026-02-18 16:59:22

Looping

Time of First Successful Submission: 2026-02-18 17:06:12

Reverse the Calculation

Time of First Successful Submission: 2026-02-18 17:08:57

Reverse the Reverse

Time of First Successful Submission: 2026-02-18 17:10:43

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-02-18 17:16:26

Loops on Data

Time of First Successful Submission: 2026-02-18 17:22:46

set-register

Time of First Successful Submission: 2026-01-27 15:01:41

set-multiple-registers

Time of First Successful Submission: 2026-01-27 15:03:46

add-to-register

Time of First Successful Submission: 2026-01-27 15:06:37

linear-equation-registers

Time of First Successful Submission: 2026-01-27 15:09:29

integer-division

Time of First Successful Submission: 2026-01-27 15:22:54

modulo-operation

Time of First Successful Submission: 2026-01-27 15:27:17

set-upper-byte

Time of First Successful Submission: 2026-01-27 15:31:00

efficient-modulo

Time of First Successful Submission: 2026-01-27 15:58:35

byte-extraction

Time of First Successful Submission: 2026-01-27 16:24:49

bitwise-and

Time of First Successful Submission: 2026-01-27 16:32:55

check-even

Time of First Successful Submission: 2026-01-27 16:44:02

memory-read

Time of First Successful Submission: 2026-01-27 16:48:52

memory-write

Time of First Successful Submission: 2026-01-27 16:50:22

memory-increment

Time of First Successful Submission: 2026-01-27 16:57:09

byte-access

Time of First Successful Submission: 2026-01-27 17:09:02

memory-size-access

Time of First Successful Submission: 2026-02-02 13:57:13

little-endian-write

Time of First Successful Submission: 2026-02-02 14:07:28

memory-sum

Time of First Successful Submission: 2026-02-02 14:18:46

stack-subtraction

Time of First Successful Submission: 2026-02-02 14:31:22

swap-stack-values

Time of First Successful Submission: 2026-02-02 14:44:33

average-stack-values

Time of First Successful Submission: 2026-02-02 15:00:13

absolute-jump

Time of First Successful Submission: 2026-02-02 15:05:39

relative-jump

Time of First Successful Submission: 2026-02-02 15:16:04

jump-trampoline

Time of First Successful Submission: 2026-02-02 15:21:24

conditional-jump

Time of First Successful Submission: 2026-02-02 16:19:30

indirect-jump

Time of First Successful Submission: 2026-02-02 16:36:53

average-loop

Time of First Successful Submission: 2026-02-02 16:59:39

count-non-zero

Time of First Successful Submission: 2026-02-02 17:23:13

string-lower

Time of First Successful Submission: 2026-02-02 18:51:51

most-common-byte

Time of First Successful Submission: 2026-02-03 15:13:09

Exit

Time of First Successful Submission: 2026-02-06 17:25:29

Socket

Time of First Successful Submission: 2026-02-06 17:59:14

Bind

Time of First Successful Submission: 2026-02-07 17:41:00

Listen

Time of First Successful Submission: 2026-02-07 17:45:31

Accept

Time of First Successful Submission: 2026-02-07 17:50:55

Static Response

Time of First Successful Submission: 2026-02-07 18:11:55

Dynamic Response

Time of First Successful Submission: 2026-02-08 14:50:44

Iterative GET Server

Time of First Successful Submission: 2026-02-08 14:53:22

Concurrent GET Server

Time of First Successful Submission: 2026-02-08 15:20:05

Concurrent POST Server

Time of First Successful Submission: 2026-02-08 15:48:19

Web Server

Time of First Successful Submission: 2026-02-08 17:07:17

Debugging Programs

Time of First Successful Submission: 2026-02-03 15:21:51

Inspecting Registers

Time of First Successful Submission: 2026-02-03 15:33:08

Examining Memory

Time of First Successful Submission: 2026-02-03 15:56:10

Setting Breakpoints

Time of First Successful Submission: 2026-02-03 16:36:14

GDB Scripting

Time of First Successful Submission: 2026-02-06 15:29:59

Modifying Data

Time of First Successful Submission: 2026-02-06 16:56:04

Modifying Execution

Time of First Successful Submission: 2026-02-06 17:02:56

Broken Functions

Time of First Successful Submission: 2026-02-06 17:11:48


Playing With Programs

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What's the password?

Time of First Successful Submission: 2026-02-08 17:08:51

... and again!

Time of First Successful Submission: 2026-02-08 17:09:30

Newline Troubles

Time of First Successful Submission: 2026-02-08 17:13:36

Reasoning about files

Time of First Successful Submission: 2026-02-08 17:16:26

Specifying Filenames

Time of First Successful Submission: 2026-02-08 17:17:42

Binary and Hex Encoding

Time of First Successful Submission: 2026-02-09 14:28:11

More Hex

Time of First Successful Submission: 2026-02-09 14:32:00

Decoding Hex

Time of First Successful Submission: 2026-02-09 14:35:34

Decoding Practice

Time of First Successful Submission: 2026-02-09 14:46:24

Encoding Practice

Time of First Successful Submission: 2026-02-09 14:54:11

Hex-encoding ASCII

Time of First Successful Submission: 2026-02-09 15:21:08

Nested Encoding

Time of First Successful Submission: 2026-02-09 15:41:58

Hex-encoding UTF-8

Time of First Successful Submission: 2026-02-10 14:08:33

UTF Mixups

Time of First Successful Submission: 2026-02-10 14:32:25

Modifying Encoded Data

Time of First Successful Submission: 2026-02-10 15:03:35

Decoding Base64

Time of First Successful Submission: 2026-02-10 15:19:46

Encoding Base64

Time of First Successful Submission: 2026-02-10 15:23:05

Dealing with Obfuscation

Time of First Successful Submission: 2026-02-10 15:32:53

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-02-10 15:41:51

Your First HTTP Request

Time of First Successful Submission: 2026-02-10 15:45:59

Reading Flask

Time of First Successful Submission: 2026-02-10 16:00:37

Commented Data

Time of First Successful Submission: 2026-02-10 16:15:59

HTTP Metadata

Time of First Successful Submission: 2026-02-14 16:29:36

HTTP (netcat)

Time of First Successful Submission: 2026-02-14 17:00:35

HTTP Paths (netcat)

Time of First Successful Submission: 2026-02-14 17:47:52

HTTP (curl)

Time of First Successful Submission: 2026-02-14 17:52:28

HTTP (python)

Time of First Successful Submission: 2026-02-14 18:33:38

HTTP Host Header (python)

Time of First Successful Submission: 2026-02-14 18:46:01

HTTP Host Header (curl)

Time of First Successful Submission: 2026-02-17 16:48:53

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-02-17 17:06:03

URL Encoding (netcat)

Time of First Successful Submission: 2026-02-17 17:34:00

HTTP GET Parameters

Time of First Successful Submission: 2026-02-17 17:39:43

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-02-17 17:53:56

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-02-17 18:09:58

HTTP Forms

Time of First Successful Submission: 2026-02-17 18:16:45

HTTP Forms (curl)

Time of First Successful Submission: 2026-02-17 18:21:02

HTTP Forms (netcat)

Time of First Successful Submission: 2026-02-17 18:37:25

HTTP Forms (python)

Time of First Successful Submission: 2026-02-17 18:45:26

HTTP Forms Without Forms

Time of First Successful Submission: 2026-02-17 18:54:50

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-02-17 19:01:36

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-02-17 19:08:36

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-02-17 19:19:31

HTTP Redirects (curl)

Time of First Successful Submission: 2026-02-17 19:21:10

HTTP Redirects (python)

Time of First Successful Submission: 2026-02-17 19:23:11

HTTP Cookies (curl)

Time of First Successful Submission: 2026-02-19 14:57:23

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-02-19 15:09:39

HTTP Cookies (python)

Time of First Successful Submission: 2026-02-19 15:18:55

Server State (python)

Time of First Successful Submission: 2026-02-19 15:23:04

Listening Web

Time of First Successful Submission: 2026-02-19 15:47:34

Speaking Redirects

Time of First Successful Submission: 2026-02-19 16:10:53

JavaScript Redirects

Time of First Successful Submission: 2026-02-19 16:42:42

Including JavaScript

Time of First Successful Submission: 2026-02-19 17:16:42

HTTP (javascript)

Time of First Successful Submission: 2026-02-19 17:28:48

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-02-19 17:36:38

HTTP Forms (javascript)

Time of First Successful Submission: 2026-02-19 17:46:30

cat

Time of First Successful Submission: 2026-02-20 18:18:44

more

Time of First Successful Submission: 2026-02-20 18:28:57

less

Time of First Successful Submission: 2026-02-20 18:29:20

tail

Time of First Successful Submission: 2026-02-20 18:30:00

head

Time of First Successful Submission: 2026-02-20 18:30:21

sort

Time of First Successful Submission: 2026-02-20 18:31:29

vim

Time of First Successful Submission: 2026-02-20 18:31:52

emacs

Time of First Successful Submission: 2026-02-20 18:32:39

nano

Time of First Successful Submission: 2026-02-20 18:32:59

rev

Time of First Successful Submission: 2026-02-20 18:33:32

od

Time of First Successful Submission: 2026-02-20 18:50:02

hd

Time of First Successful Submission: 2026-02-20 18:58:12

xxd

Time of First Successful Submission: 2026-02-20 19:17:28

base32

Time of First Successful Submission: 2026-02-20 19:18:19

base64

Time of First Successful Submission: 2026-02-20 19:19:46

split

Time of First Successful Submission: 2026-02-20 19:25:10

gzip

Time of First Successful Submission: 2026-02-20 19:29:34

bzip2

Time of First Successful Submission: 2026-02-20 19:38:38

zip

Time of First Successful Submission: 2026-02-20 19:42:12

tar

Time of First Successful Submission: 2026-02-20 19:46:14

ar

Time of First Successful Submission: 2026-02-20 19:48:56

cpio

Time of First Successful Submission: 2026-02-21 12:11:59

genisoimage

Time of First Successful Submission: 2026-02-21 12:18:35

env

Time of First Successful Submission: 2026-02-21 12:19:37

find

Time of First Successful Submission: 2026-02-21 12:26:44

make

Time of First Successful Submission: 2026-02-21 12:28:21

nice

Time of First Successful Submission: 2026-02-21 12:29:50

timeout

Time of First Successful Submission: 2026-02-21 12:30:41

stdbuf

Time of First Successful Submission: 2026-02-21 12:36:08

setarch

Time of First Successful Submission: 2026-02-21 12:37:35

watch

Time of First Successful Submission: 2026-02-21 12:38:24

socat

Time of First Successful Submission: 2026-02-21 12:40:33

whiptail

Time of First Successful Submission: 2026-02-21 12:42:17

awk

Time of First Successful Submission: 2026-02-21 12:51:24

sed

Time of First Successful Submission: 2026-02-21 12:55:18

ed

Time of First Successful Submission: 2026-02-21 13:01:38

chown

Time of First Successful Submission: 2026-02-21 13:02:32

chmod

Time of First Successful Submission: 2026-02-21 13:03:17

cp

Time of First Successful Submission: 2026-02-21 13:14:18

mv

Time of First Successful Submission: 2026-02-21 13:19:11

perl

Time of First Successful Submission: 2026-02-21 13:23:54

python

Time of First Successful Submission: 2026-02-21 13:29:57

ruby

Time of First Successful Submission: 2026-02-21 13:36:14

bash

Time of First Successful Submission: 2026-02-21 13:36:47

date

Time of First Successful Submission: 2026-02-21 13:39:36

dmesg

Time of First Successful Submission: 2026-02-21 13:46:46

wc

Time of First Successful Submission: 2026-02-21 13:48:35

gcc

Time of First Successful Submission: 2026-02-21 13:50:04

as

Time of First Successful Submission: 2026-02-21 13:52:47

wget

Time of First Successful Submission: 2026-02-21 13:59:43

ssh-keygen

Time of First Successful Submission: 2026-02-21 16:49:17

SQL Queries

Time of First Successful Submission: 2026-02-21 16:57:43

Filtering SQL

Time of First Successful Submission: 2026-02-21 17:05:57

Choosing Columns

Time of First Successful Submission: 2026-02-21 17:13:37

Exclusionary Filtering

Time of First Successful Submission: 2026-02-21 17:30:27

Filtering Strings

Time of First Successful Submission: 2026-02-21 17:31:49

Filtering on Expressions

Time of First Successful Submission: 2026-02-21 17:37:38

SELECTing Expressions

Time of First Successful Submission: 2026-02-21 18:06:22

Composite Conditions

Time of First Successful Submission: 2026-02-21 18:14:31

Reaching Your LIMITs

Time of First Successful Submission: 2026-02-21 18:19:52

Querying Metadata

Time of First Successful Submission: 2026-02-21 18:24:07


GCA CTF

10 / 104 19343 / 43655


Using the Terminal

Time of First Successful Submission: 2025-11-09 13:29:59

Using the VSCode Workspace

Time of First Successful Submission: 2025-04-02 09:07:36

Using the GUI Desktop

Time of First Successful Submission: 2025-04-02 09:12:17

Pasting into the Desktop

Time of First Successful Submission: 2025-11-09 13:37:40

Restarting Challenges

Time of First Successful Submission: 2025-11-09 13:41:18

Challenge Programs

Time of First Successful Submission: 2025-11-09 13:42:54

The Flag File

Time of First Successful Submission: 2025-11-09 13:50:53

Using Privileged Mode

Time of First Successful Submission: 2026-01-19 12:33:43

Persistent Home Directories - One

Time of First Successful Submission: 2026-01-19 12:38:26

Persistent Home Directories - Two

Time of First Successful Submission: 2026-01-19 12:40:33