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1 / 202 19840 / 22795

Triple Dereference

Time of First Successful Submission: 2025-09-03 22:20:07

Intro to Programming Languages

15 / 234 3683 / 31991

Commands

Time of First Successful Submission: 2025-08-28 18:14:27

Command Arguments

Time of First Successful Submission: 2025-08-28 18:15:07

Command History

Time of First Successful Submission: 2025-08-28 18:15:37

The Root Path

Time of First Successful Submission: 2025-08-28 18:19:43

Absolute Paths

Time of First Successful Submission: 2025-08-28 18:20:39

Changing position

Time of First Successful Submission: 2025-08-28 18:26:40

Changing to an Absolute Path

Time of First Successful Submission: 2025-08-28 18:27:18

Relative Paths

Time of First Successful Submission: 2025-08-28 18:30:24

Cat

Time of First Successful Submission: 2025-08-28 18:35:31

Ls

Time of First Successful Submission: 2025-08-28 18:41:06

Ls All

Time of First Successful Submission: 2025-08-28 18:44:13

Find

Time of First Successful Submission: 2025-08-28 19:30:41

Piping Echo

Time of First Successful Submission: 2025-08-28 22:12:08

Piping Stdout

Time of First Successful Submission: 2025-08-28 22:13:26

Piping Stdin

Time of First Successful Submission: 2025-08-28 22:17:00

Intro to Cybersecurity

20 / 183 10414 / 20040

Path Traversal 1

Time of First Successful Submission: 2026-02-18 07:54:38

Path Traversal 2

Time of First Successful Submission: 2026-02-18 08:11:51

CMDi 1

Time of First Successful Submission: 2026-02-20 01:20:11

CMDi 2

Time of First Successful Submission: 2026-02-20 01:22:06

CMDi 3

Time of First Successful Submission: 2026-02-20 01:25:19

CMDi 4

Time of First Successful Submission: 2026-02-20 01:28:08

CMDi 5

Time of First Successful Submission: 2026-02-20 01:34:24

CMDi 6

Time of First Successful Submission: 2026-02-20 01:48:02

Authentication Bypass 1

Time of First Successful Submission: 2026-02-20 01:53:26

Authentication Bypass 2

Time of First Successful Submission: 2026-02-20 02:03:08

SQLi 1

Time of First Successful Submission: 2026-02-20 02:38:56

SQLi 2

Time of First Successful Submission: 2026-02-20 02:57:21

SQLi 3

Time of First Successful Submission: 2026-02-20 03:11:14

SQLi 4

Time of First Successful Submission: 2026-02-21 17:59:21

SQLi 5

Time of First Successful Submission: 2026-02-21 21:28:57

XSS 1

Time of First Successful Submission: 2026-02-21 22:20:15

XSS 2

Time of First Successful Submission: 2026-02-21 22:33:16

XSS 3

Time of First Successful Submission: 2026-02-21 22:41:46

XSS 4

Time of First Successful Submission: 2026-02-21 22:48:52

XSS 5

Time of First Successful Submission: 2026-04-04 17:07:43

XSS 6

Time of First Successful Submission: 2026-04-04 17:16:30

XSS 7

Time of First Successful Submission: 2026-04-04 17:40:38

Start Here

12 / 12 1273 / 43364

Using the Terminal

Time of First Successful Submission: 2025-08-28 17:55:30

Using the VSCode Workspace

Time of First Successful Submission: 2025-08-28 17:57:25

Using the GUI Desktop

Time of First Successful Submission: 2025-08-28 17:59:23

Pasting into the Desktop

Time of First Successful Submission: 2025-08-28 18:00:50

Restarting Challenges

Time of First Successful Submission: 2025-08-28 18:03:37

Challenge Programs

Time of First Successful Submission: 2025-08-29 22:48:26

The Flag File

Time of First Successful Submission: 2025-08-29 22:49:52

Using Privileged Mode

Time of First Successful Submission: 2025-08-29 22:52:19

Persistent Home Directories - One

Time of First Successful Submission: 2025-08-29 22:53:52

Persistent Home Directories - Two

Time of First Successful Submission: 2025-08-29 22:54:24

Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2025-08-28 18:14:27

Intro to Arguments

Time of First Successful Submission: 2025-08-28 18:15:07

Command History

Time of First Successful Submission: 2025-08-28 18:15:37

The Root

Time of First Successful Submission: 2025-08-28 18:19:43

Program and absolute paths

Time of First Successful Submission: 2025-08-28 18:20:39

Position thy self

Time of First Successful Submission: 2025-08-28 18:26:40

Position elsewhere

Time of First Successful Submission: 2025-08-28 18:27:18

implicit relative paths, from /

Time of First Successful Submission: 2025-08-28 18:30:24

explicit relative paths, from /

Time of First Successful Submission: 2025-08-28 18:31:29

implicit relative path

Time of First Successful Submission: 2025-08-28 18:32:17

home sweet home

Time of First Successful Submission: 2025-08-28 18:34:32

cat: not the pet, but the command!

Time of First Successful Submission: 2025-08-28 18:35:31

catting absolute paths

Time of First Successful Submission: 2025-08-28 18:37:32

more catting practice

Time of First Successful Submission: 2025-08-28 18:38:15

grepping for a needle in a haystack

Time of First Successful Submission: 2025-08-28 18:39:23

comparing files

Time of First Successful Submission: 2025-08-28 18:40:05

listing files

Time of First Successful Submission: 2025-08-28 18:41:06

touching files

Time of First Successful Submission: 2025-08-28 18:42:03

removing files

Time of First Successful Submission: 2025-08-28 18:42:30

moving files

Time of First Successful Submission: 2025-08-28 18:43:10

copying files

Time of First Successful Submission: 2025-12-10 20:44:36

hidden files

Time of First Successful Submission: 2025-08-28 18:44:13

An Epic Filesystem Quest

Time of First Successful Submission: 2025-08-28 18:48:43

making directories

Time of First Successful Submission: 2025-08-28 18:49:33

finding files

Time of First Successful Submission: 2025-08-28 19:30:41

linking files

Time of First Successful Submission: 2025-08-28 19:39:00

Learning From Documentation

Time of First Successful Submission: 2025-08-28 18:54:32

Learning Complex Usage

Time of First Successful Submission: 2025-08-28 19:40:22

Reading Manuals

Time of First Successful Submission: 2025-08-28 19:42:37

Searching Manuals

Time of First Successful Submission: 2025-08-28 19:43:33

Searching For Manuals

Time of First Successful Submission: 2025-08-28 19:49:25

Helpful Programs

Time of First Successful Submission: 2025-08-28 19:51:24

Help for Builtins

Time of First Successful Submission: 2025-08-28 19:52:37

Matching with *

Time of First Successful Submission: 2025-08-28 21:35:08

Matching with ?

Time of First Successful Submission: 2025-08-28 21:36:35

Matching with []

Time of First Successful Submission: 2025-08-28 21:38:31

Matching paths with []

Time of First Successful Submission: 2025-08-28 21:39:47

Multiple globs

Time of First Successful Submission: 2025-08-28 21:42:48

Mixing globs

Time of First Successful Submission: 2025-08-28 22:01:50

Exclusionary globbing

Time of First Successful Submission: 2025-08-28 22:03:56

Tab completion

Time of First Successful Submission: 2025-08-28 22:05:51

Multiple options for tab completion

Time of First Successful Submission: 2025-08-28 22:08:11

Tab completion on commands

Time of First Successful Submission: 2025-08-28 22:08:47

Redirecting output

Time of First Successful Submission: 2025-08-28 22:12:08

Redirecting more output

Time of First Successful Submission: 2025-08-28 22:13:26

Appending output

Time of First Successful Submission: 2025-08-28 22:14:31

Redirecting errors

Time of First Successful Submission: 2025-08-28 22:16:08

Redirecting input

Time of First Successful Submission: 2025-08-28 22:17:00

Grepping stored results

Time of First Successful Submission: 2025-08-28 22:18:29

Grepping live output

Time of First Successful Submission: 2025-08-28 22:19:28

Grepping errors

Time of First Successful Submission: 2025-08-28 22:21:50

Filtering with grep -v

Time of First Successful Submission: 2025-08-28 22:22:54

Filtering with sed

Time of First Successful Submission: 2025-12-11 14:04:09

Duplicating piped data with tee

Time of First Successful Submission: 2025-08-28 23:09:21

Process substitution for input

Time of First Successful Submission: 2025-08-28 23:16:34

Writing to multiple programs

Time of First Successful Submission: 2025-08-29 18:46:07

Split-piping stderr and stdout

Time of First Successful Submission: 2025-08-29 19:05:26

Named pipes

Time of First Successful Submission: 2025-08-29 19:15:22

Printing Variables

Time of First Successful Submission: 2025-08-29 19:18:05

Setting Variables

Time of First Successful Submission: 2025-08-29 19:20:18

Multi-word Variables

Time of First Successful Submission: 2025-08-29 19:21:28

Exporting Variables

Time of First Successful Submission: 2025-08-29 19:23:52

Printing Exported Variables

Time of First Successful Submission: 2025-08-29 19:24:36

Storing Command Output

Time of First Successful Submission: 2025-08-29 19:27:41

Reading Input

Time of First Successful Submission: 2025-08-29 19:29:47

Reading Files

Time of First Successful Submission: 2025-08-29 19:35:46

Translating characters

Time of First Successful Submission: 2025-08-29 21:12:58

Deleting characters

Time of First Successful Submission: 2025-08-29 21:22:47

Deleting newlines

Time of First Successful Submission: 2025-08-29 21:25:29

Extracting the first lines with head

Time of First Successful Submission: 2025-08-29 21:26:46

Extracting specific sections of text

Time of First Successful Submission: 2025-08-29 21:28:56

Sorting data

Time of First Successful Submission: 2025-08-29 21:30:26

Listing Processes

Time of First Successful Submission: 2025-08-29 21:39:21

Killing Processes

Time of First Successful Submission: 2025-08-29 21:42:19

Interrupting Processes

Time of First Successful Submission: 2025-08-29 21:43:41

Killing Misbehaving Processes

Time of First Successful Submission: 2025-08-29 21:51:13

Suspending Processes

Time of First Successful Submission: 2025-08-29 21:52:34

Resuming Processes

Time of First Successful Submission: 2025-08-29 21:53:47

Backgrounding Processes

Time of First Successful Submission: 2025-08-29 21:57:24

Foregrounding Processes

Time of First Successful Submission: 2025-08-29 21:58:09

Starting Backgrounded Processes

Time of First Successful Submission: 2025-08-29 22:11:32

Process Exit Codes

Time of First Successful Submission: 2025-08-29 22:13:05

Becoming root with su

Time of First Successful Submission: 2025-08-29 22:18:57

Other users with su

Time of First Successful Submission: 2025-08-29 22:20:10

Cracking passwords

Time of First Successful Submission: 2025-08-29 22:42:59

Using sudo

Time of First Successful Submission: 2025-08-29 22:46:13

Changing File Ownership

Time of First Successful Submission: 2025-08-29 22:55:23

Groups and Files

Time of First Successful Submission: 2025-08-29 22:56:02

Fun With Groups Names

Time of First Successful Submission: 2025-08-29 22:57:10

Changing Permissions

Time of First Successful Submission: 2025-09-01 19:40:43

Executable Files

Time of First Successful Submission: 2025-09-01 19:43:07

Permission Tweaking Practice

Time of First Successful Submission: 2025-09-01 19:49:14

Permissions Setting Practice

Time of First Successful Submission: 2025-09-01 19:54:27

The SUID Bit

Time of First Successful Submission: 2025-09-01 19:59:56

Chaining with Semicolons

Time of First Successful Submission: 2025-09-01 20:07:22

Building on Success

Time of First Successful Submission: 2025-09-01 20:09:35

Handling Failure

Time of First Successful Submission: 2025-09-01 20:10:50

Your First Shell Script

Time of First Successful Submission: 2025-09-01 20:13:15

Redirecting Script Output

Time of First Successful Submission: 2025-09-01 20:16:11

Executable Shell Scripts

Time of First Successful Submission: 2025-09-01 20:18:16

Understanding Shebangs

Time of First Successful Submission: 2025-09-01 20:22:53

Scripting with Arguments

Time of First Successful Submission: 2025-09-01 20:24:39

Scripting with Conditionals

Time of First Successful Submission: 2025-09-01 20:28:10

Scripting with Default Cases

Time of First Successful Submission: 2025-09-01 20:30:00

Scripting with Multiple Conditions

Time of First Successful Submission: 2025-09-01 20:32:19

Reading Shell Scripts

Time of First Successful Submission: 2025-09-01 20:34:07

Launching Screen

Time of First Successful Submission: 2025-09-01 20:41:59

Detaching and Attaching

Time of First Successful Submission: 2025-09-01 20:44:07

Finding Sessions

Time of First Successful Submission: 2025-09-01 20:46:21

Switching Windows

Time of First Successful Submission: 2025-09-01 20:49:05

Detaching and Attaching (tmux)

Time of First Successful Submission: 2025-09-01 20:50:21

Switching Windows (tmux)

Time of First Successful Submission: 2025-09-01 20:52:00

The PATH Variable

Time of First Successful Submission: 2025-09-01 20:55:08

Setting PATH

Time of First Successful Submission: 2025-09-01 20:57:35

Finding Commands

Time of First Successful Submission: 2025-09-01 21:00:07

Adding Commands

Time of First Successful Submission: 2025-09-01 21:05:33

Hijacking Commands

Time of First Successful Submission: 2025-09-01 21:08:31

Bashrc Backdoor

Time of First Successful Submission: 2025-09-01 21:13:52

Sniffing Input

Time of First Successful Submission: 2025-09-01 21:20:54

Overshared Directories

Time of First Successful Submission: 2025-09-01 21:29:13

Tricky Linking

Time of First Successful Submission: 2025-09-01 21:33:58

Sniffing Process Arguments

Time of First Successful Submission: 2025-09-01 21:39:47

Snooping on Configurations

Time of First Successful Submission: 2025-09-01 21:42:39

The Fork Bomb

Time of First Successful Submission: 2025-09-01 21:59:24

Disk-Space Doomsday

Time of First Successful Submission: 2025-09-01 22:02:05

rm -rf /

Time of First Successful Submission: 2025-09-01 22:04:13

Life after rm -rf /

Time of First Successful Submission: 2025-09-01 22:08:57

Finding meaning after rm -rf /

Time of First Successful Submission: 2025-09-01 22:11:07

Computing 101

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Your First Register

Time of First Successful Submission: 2025-09-03 18:46:34

Your First Syscall

Time of First Successful Submission: 2025-09-03 18:50:53

Exit Codes

Time of First Successful Submission: 2025-09-03 18:52:56

Building Executables

Time of First Successful Submission: 2025-09-03 19:04:59

Moving Between Registers

Time of First Successful Submission: 2025-09-03 19:14:51

Loading From Memory

Time of First Successful Submission: 2025-09-03 20:57:29

More Loading Practice

Time of First Successful Submission: 2025-09-03 20:59:53

Dereferencing Pointers

Time of First Successful Submission: 2025-09-03 21:05:54

Dereferencing Yourself

Time of First Successful Submission: 2025-09-03 21:11:18

Dereferencing with Offsets

Time of First Successful Submission: 2025-09-03 21:16:22

Stored Addresses

Time of First Successful Submission: 2025-09-03 21:21:07

Double Dereference

Time of First Successful Submission: 2025-09-03 22:17:07

The Stack

Time of First Successful Submission: 2026-02-18 02:23:24

Stack Offsets

Time of First Successful Submission: 2026-02-18 02:27:01

Program Arguments on the Stack

Time of First Successful Submission: 2026-02-18 02:31:42

Popping From the Stack

Time of First Successful Submission: 2026-02-18 02:34:32

Disassembling Programs

Time of First Successful Submission: 2026-02-18 02:43:37

Tracing Syscalls

Time of First Successful Submission: 2025-09-03 19:23:27

Starting GDB

Time of First Successful Submission: 2025-09-03 19:25:42

Quitting GDB

Time of First Successful Submission: 2026-02-18 02:44:53

Starting Programs in GDB

Time of First Successful Submission: 2025-09-03 19:27:03

Disassembling in GDB

Time of First Successful Submission: 2026-02-18 02:46:10

Stepping Through Instructions

Time of First Successful Submission: 2026-02-18 02:47:40

Reading Register Values

Time of First Successful Submission: 2026-02-18 02:48:45

Popping Stack Values

Time of First Successful Submission: 2026-02-18 02:50:47

Examining Memory

Time of First Successful Submission: 2026-02-18 02:52:57

Examining Stack Pointers

Time of First Successful Submission: 2026-02-18 02:55:13

Cooperative Debugging

Time of First Successful Submission: 2026-02-18 02:59:42

Writing Output

Time of First Successful Submission: 2025-09-03 22:48:55

Chaining Syscalls

Time of First Successful Submission: 2025-09-03 22:52:27

Writing Strings

Time of First Successful Submission: 2025-09-03 22:53:59

Reading Data

Time of First Successful Submission: 2025-09-04 02:55:13

Opening Files

Time of First Successful Submission: 2026-02-18 03:18:11

Hardcoding the Filename

Time of First Successful Submission: 2026-02-18 03:23:36

Comparing Values

Time of First Successful Submission: 2026-02-18 03:57:54

Comparing Characters

Time of First Successful Submission: 2026-02-18 04:01:46

Conditional Control Flow

Time of First Successful Submission: 2026-02-18 04:07:28

Comparing Strings

Time of First Successful Submission: 2026-02-18 04:11:18

Reverse the Password

Time of First Successful Submission: 2026-02-18 04:16:35

Conditionals Without Conditionals

Time of First Successful Submission: 2026-02-18 04:41:09

Looping

Time of First Successful Submission: 2026-02-18 04:45:42

Reverse the Calculation

Time of First Successful Submission: 2026-02-18 04:52:02

Reverse the Reverse

Time of First Successful Submission: 2026-02-18 04:59:55

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-02-18 05:07:08

Loops on Data

Time of First Successful Submission: 2026-02-18 05:09:06

set-register

Time of First Successful Submission: 2025-09-04 03:03:00

set-multiple-registers

Time of First Successful Submission: 2025-09-04 03:04:39

add-to-register

Time of First Successful Submission: 2025-09-04 03:07:27

linear-equation-registers

Time of First Successful Submission: 2025-09-04 03:10:23

integer-division

Time of First Successful Submission: 2025-09-11 12:43:58

modulo-operation

Time of First Successful Submission: 2025-09-11 12:47:24

set-upper-byte

Time of First Successful Submission: 2025-09-11 12:54:27

efficient-modulo

Time of First Successful Submission: 2025-09-11 13:15:34

byte-extraction

Time of First Successful Submission: 2025-09-11 13:24:31

bitwise-and

Time of First Successful Submission: 2025-09-11 13:28:57

check-even

Time of First Successful Submission: 2025-09-11 13:41:27

memory-read

Time of First Successful Submission: 2025-09-11 13:48:10

memory-write

Time of First Successful Submission: 2025-09-11 13:49:46

memory-increment

Time of First Successful Submission: 2025-09-11 13:52:59

byte-access

Time of First Successful Submission: 2025-09-11 13:56:49

memory-size-access

Time of First Successful Submission: 2025-09-11 13:59:01

little-endian-write

Time of First Successful Submission: 2025-09-11 14:08:09

memory-sum

Time of First Successful Submission: 2025-09-11 14:16:14

stack-subtraction

Time of First Successful Submission: 2025-09-11 14:21:19

swap-stack-values

Time of First Successful Submission: 2025-09-11 14:23:49

average-stack-values

Time of First Successful Submission: 2025-09-11 14:34:02

absolute-jump

Time of First Successful Submission: 2025-09-11 14:39:27

relative-jump

Time of First Successful Submission: 2025-09-11 15:03:10

jump-trampoline

Time of First Successful Submission: 2025-09-11 15:07:59

conditional-jump

Time of First Successful Submission: 2025-09-11 15:31:06

indirect-jump

Time of First Successful Submission: 2025-09-11 16:54:33

average-loop

Time of First Successful Submission: 2025-09-11 18:02:07

count-non-zero

Time of First Successful Submission: 2025-09-11 18:28:29

string-lower

Time of First Successful Submission: 2025-09-12 19:38:29

most-common-byte

Time of First Successful Submission: 2025-09-16 11:27:49

Exit

Time of First Successful Submission: 2025-09-17 10:25:15

Socket

Time of First Successful Submission: 2025-09-17 10:52:25

Bind

Time of First Successful Submission: 2025-09-17 11:19:03

Listen

Time of First Successful Submission: 2025-09-17 11:27:00

Accept

Time of First Successful Submission: 2025-09-17 11:43:44

Static Response

Time of First Successful Submission: 2025-09-22 21:38:21

Dynamic Response

Time of First Successful Submission: 2025-09-26 15:10:58

Iterative GET Server

Time of First Successful Submission: 2025-09-26 15:52:17

Concurrent GET Server

Time of First Successful Submission: 2025-09-26 17:52:04

Concurrent POST Server

Time of First Successful Submission: 2025-10-03 00:45:21

Web Server

Time of First Successful Submission: 2025-10-03 03:41:08

Debugging Programs

Time of First Successful Submission: 2025-09-16 12:24:58

Inspecting Registers

Time of First Successful Submission: 2025-09-16 12:27:26

Examining Memory

Time of First Successful Submission: 2025-09-16 13:15:58

Setting Breakpoints

Time of First Successful Submission: 2025-09-16 13:35:21

GDB Scripting

Time of First Successful Submission: 2025-09-16 13:58:33

Modifying Data

Time of First Successful Submission: 2025-09-16 14:30:49

Modifying Execution

Time of First Successful Submission: 2025-09-16 14:32:53

Broken Functions

Time of First Successful Submission: 2025-09-16 14:51:33

Playing With Programs

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What's the password?

Time of First Successful Submission: 2025-10-27 12:16:41

... and again!

Time of First Successful Submission: 2025-10-27 12:17:23

Newline Troubles

Time of First Successful Submission: 2025-10-27 12:19:20

Reasoning about files

Time of First Successful Submission: 2025-10-27 12:56:07

Specifying Filenames

Time of First Successful Submission: 2025-10-27 13:01:25

Binary and Hex Encoding

Time of First Successful Submission: 2025-10-27 13:12:34

More Hex

Time of First Successful Submission: 2025-10-27 13:18:11

Decoding Hex

Time of First Successful Submission: 2025-10-27 13:29:45

Decoding Practice

Time of First Successful Submission: 2025-10-27 13:32:43

Encoding Practice

Time of First Successful Submission: 2025-10-27 13:55:46

Hex-encoding ASCII

Time of First Successful Submission: 2026-02-09 23:11:12

Nested Encoding

Time of First Successful Submission: 2026-02-09 23:24:19

Hex-encoding UTF-8

Time of First Successful Submission: 2026-02-09 23:33:52

UTF Mixups

Time of First Successful Submission: 2026-02-10 00:04:32

Modifying Encoded Data

Time of First Successful Submission: 2026-02-10 08:47:14

Decoding Base64

Time of First Successful Submission: 2026-02-10 09:09:28

Encoding Base64

Time of First Successful Submission: 2026-02-10 09:12:53

Dealing with Obfuscation

Time of First Successful Submission: 2026-02-10 09:18:47

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-02-10 09:24:57

Your First HTTP Request

Time of First Successful Submission: 2026-02-10 16:47:10

Reading Flask

Time of First Successful Submission: 2026-02-10 16:50:43

Commented Data

Time of First Successful Submission: 2026-02-10 16:53:55

HTTP Metadata

Time of First Successful Submission: 2026-02-10 16:57:03

HTTP (netcat)

Time of First Successful Submission: 2026-02-10 17:01:54

HTTP Paths (netcat)

Time of First Successful Submission: 2026-02-10 17:04:20

HTTP (curl)

Time of First Successful Submission: 2026-02-10 18:35:32

HTTP (python)

Time of First Successful Submission: 2026-02-10 18:40:02

HTTP Host Header (python)

Time of First Successful Submission: 2026-02-10 19:02:51

HTTP Host Header (curl)

Time of First Successful Submission: 2026-02-10 19:04:38

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-02-10 19:07:47

URL Encoding (netcat)

Time of First Successful Submission: 2026-02-10 19:19:34

HTTP GET Parameters

Time of First Successful Submission: 2026-02-10 19:33:02

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-02-10 20:09:52

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-02-10 20:13:10

HTTP Forms

Time of First Successful Submission: 2026-02-10 20:39:30

HTTP Forms (curl)

Time of First Successful Submission: 2026-02-10 20:52:25

HTTP Forms (netcat)

Time of First Successful Submission: 2026-02-11 14:14:15

HTTP Forms (python)

Time of First Successful Submission: 2026-02-11 14:17:12

HTTP Forms Without Forms

Time of First Successful Submission: 2026-02-16 02:38:36

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-02-16 02:42:55

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-02-16 02:52:36

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-02-16 02:56:42

HTTP Redirects (curl)

Time of First Successful Submission: 2026-02-16 03:01:29

HTTP Redirects (python)

Time of First Successful Submission: 2026-02-16 03:06:57

HTTP Cookies (curl)

Time of First Successful Submission: 2026-02-16 03:17:25

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-02-16 03:21:24

HTTP Cookies (python)

Time of First Successful Submission: 2026-02-16 03:24:26

Server State (python)

Time of First Successful Submission: 2026-02-16 03:29:33

Listening Web

Time of First Successful Submission: 2026-02-16 03:40:22

Speaking Redirects

Time of First Successful Submission: 2026-02-16 03:48:18

JavaScript Redirects

Time of First Successful Submission: 2026-02-16 05:48:27

Including JavaScript

Time of First Successful Submission: 2026-02-16 06:01:12

HTTP (javascript)

Time of First Successful Submission: 2026-02-16 06:13:16

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-02-16 06:18:10

HTTP Forms (javascript)

Time of First Successful Submission: 2026-02-16 06:26:50

cat

Time of First Successful Submission: 2026-02-16 07:33:53

more

Time of First Successful Submission: 2026-02-16 07:34:18

less

Time of First Successful Submission: 2026-02-16 07:34:38

tail

Time of First Successful Submission: 2026-02-16 07:34:54

head

Time of First Successful Submission: 2026-02-16 07:35:09

sort

Time of First Successful Submission: 2026-02-16 07:35:25

vim

Time of First Successful Submission: 2026-02-16 07:41:07

emacs

Time of First Successful Submission: 2026-02-16 07:42:23

nano

Time of First Successful Submission: 2026-02-16 07:43:03

rev

Time of First Successful Submission: 2026-02-16 07:43:34

od

Time of First Successful Submission: 2026-02-16 07:48:03

hd

Time of First Successful Submission: 2026-02-16 07:50:09

xxd

Time of First Successful Submission: 2026-02-16 08:01:02

base32

Time of First Successful Submission: 2026-02-16 08:01:43

base64

Time of First Successful Submission: 2026-02-16 08:02:21

split

Time of First Successful Submission: 2026-02-16 08:04:36

gzip

Time of First Successful Submission: 2026-02-16 08:21:52

bzip2

Time of First Successful Submission: 2026-02-16 08:23:08

zip

Time of First Successful Submission: 2026-02-16 08:29:30

tar

Time of First Successful Submission: 2026-02-16 08:36:28

ar

Time of First Successful Submission: 2026-02-16 08:41:18

cpio

Time of First Successful Submission: 2026-02-16 08:46:51

genisoimage

Time of First Successful Submission: 2026-02-16 08:48:44

env

Time of First Successful Submission: 2026-02-16 08:50:39

find

Time of First Successful Submission: 2026-02-16 08:54:11

make

Time of First Successful Submission: 2026-02-16 09:01:30

nice

Time of First Successful Submission: 2026-02-16 09:02:38

timeout

Time of First Successful Submission: 2026-02-16 09:03:38

stdbuf

Time of First Successful Submission: 2026-02-16 09:04:41

setarch

Time of First Successful Submission: 2026-02-16 09:07:06

watch

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

socat

Time of First Successful Submission: 2026-02-16 09:11:25

whiptail

Time of First Successful Submission: 2026-02-16 23:55:15

awk

Time of First Successful Submission: 2026-02-17 00:00:09

sed

Time of First Successful Submission: 2026-02-17 00:04:51

ed

Time of First Successful Submission: 2026-02-17 00:07:18

chown

Time of First Successful Submission: 2026-02-17 00:08:34

chmod

Time of First Successful Submission: 2026-02-17 00:09:04

cp

Time of First Successful Submission: 2026-02-17 00:16:05

mv

Time of First Successful Submission: 2026-02-17 00:30:54

perl

Time of First Successful Submission: 2026-02-17 00:38:47

python

Time of First Successful Submission: 2026-02-17 00:46:25

ruby

Time of First Successful Submission: 2026-02-17 00:49:05

bash

Time of First Successful Submission: 2026-02-17 00:53:32

date

Time of First Successful Submission: 2026-02-17 00:54:42

dmesg

Time of First Successful Submission: 2026-02-17 00:57:09

wc

Time of First Successful Submission: 2026-02-17 01:00:16

gcc

Time of First Successful Submission: 2026-02-17 01:05:16

as

Time of First Successful Submission: 2026-02-17 01:06:19

wget

Time of First Successful Submission: 2026-02-17 01:13:11

ssh-keygen

Time of First Successful Submission: 2026-02-17 01:26:28

SQL Queries

Time of First Successful Submission: 2026-02-18 01:13:32

Filtering SQL

Time of First Successful Submission: 2026-02-18 01:26:13

Choosing Columns

Time of First Successful Submission: 2026-02-18 01:32:13

Exclusionary Filtering

Time of First Successful Submission: 2026-02-18 01:34:17

Filtering Strings

Time of First Successful Submission: 2026-02-18 01:35:47

Filtering on Expressions

Time of First Successful Submission: 2026-02-18 01:40:35

SELECTing Expressions

Time of First Successful Submission: 2026-02-18 02:00:43

Composite Conditions

Time of First Successful Submission: 2026-02-18 02:03:15

Reaching Your LIMITs

Time of First Successful Submission: 2026-02-18 02:08:58

Querying Metadata

Time of First Successful Submission: 2026-02-18 02:11:48

GCA CTF

12 / 104 1516 / 43641

Using the Terminal

Time of First Successful Submission: 2025-08-28 17:55:30

Using the VSCode Workspace

Time of First Successful Submission: 2025-08-28 17:57:25

Using the GUI Desktop

Time of First Successful Submission: 2025-08-28 17:59:23

Pasting into the Desktop

Time of First Successful Submission: 2025-08-28 18:00:50

Connecting over SSH

Time of First Successful Submission: 2026-02-16 04:03:57

Restarting Challenges

Time of First Successful Submission: 2025-08-28 18:03:37

Getting Help

Time of First Successful Submission: 2025-08-28 18:08:09

Challenge Programs

Time of First Successful Submission: 2025-08-29 22:48:26

The Flag File

Time of First Successful Submission: 2025-08-29 22:49:52

Using Privileged Mode

Time of First Successful Submission: 2025-08-29 22:52:19

Persistent Home Directories - One

Time of First Successful Submission: 2025-08-29 22:53:52

Persistent Home Directories - Two

Time of First Successful Submission: 2025-08-29 22:54:24