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1 / 202 21904 / 22795


Triple Dereference

Time of First Successful Submission: 2025-12-17 01:47:38


Intro to Programming Languages

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Commands

Time of First Successful Submission: 2025-09-12 01:42:29

Command Arguments

Time of First Successful Submission: 2025-09-12 01:43:20

Command History

Time of First Successful Submission: 2025-09-12 01:43:56

The Root Path

Time of First Successful Submission: 2025-09-12 01:45:22

Absolute Paths

Time of First Successful Submission: 2025-09-12 01:46:11

Changing position

Time of First Successful Submission: 2025-09-12 01:56:32

Changing to an Absolute Path

Time of First Successful Submission: 2025-09-12 01:59:44

Relative Paths

Time of First Successful Submission: 2025-09-12 02:09:41

Cat

Time of First Successful Submission: 2025-09-12 02:29:29

Ls

Time of First Successful Submission: 2025-09-12 02:40:49

Ls All

Time of First Successful Submission: 2025-09-12 02:47:42

Find

Time of First Successful Submission: 2025-09-15 15:58:40

Piping Echo

Time of First Successful Submission: 2025-09-26 15:47:34

Piping Stdout

Time of First Successful Submission: 2025-09-26 16:00:09

Piping Stdin

Time of First Successful Submission: 2025-09-29 16:02:11


Intro to Cybersecurity

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Path Traversal 1

Time of First Successful Submission: 2026-03-05 04:00:07

Path Traversal 2

Time of First Successful Submission: 2026-03-07 02:10:06

CMDi 1

Time of First Successful Submission: 2026-03-10 00:55:55

CMDi 2

Time of First Successful Submission: 2026-03-10 01:12:17

CMDi 3

Time of First Successful Submission: 2026-03-10 01:31:28

CMDi 4

Time of First Successful Submission: 2026-03-11 01:07:07

CMDi 5

Time of First Successful Submission: 2026-03-11 01:22:27

CMDi 6

Time of First Successful Submission: 2026-03-11 01:45:32

Authentication Bypass 1

Time of First Successful Submission: 2026-03-11 02:40:30

Authentication Bypass 2

Time of First Successful Submission: 2026-03-12 00:41:35

SQLi 1

Time of First Successful Submission: 2026-03-12 02:00:10

SQLi 2

Time of First Successful Submission: 2026-03-17 01:53:45

SQLi 3

Time of First Successful Submission: 2026-03-18 03:17:10

SQLi 4

Time of First Successful Submission: 2026-03-19 01:24:49

SQLi 5

Time of First Successful Submission: 2026-03-20 03:46:01

XSS 1

Time of First Successful Submission: 2026-03-24 02:13:49

XSS 2

Time of First Successful Submission: 2026-03-24 02:26:40

XSS 3

Time of First Successful Submission: 2026-03-25 00:33:58

XSS 4

Time of First Successful Submission: 2026-03-25 00:51:17

XSS 5

Time of First Successful Submission: 2026-03-27 01:57:26

XSS 6

Time of First Successful Submission: 2026-03-27 02:20:37

XSS 7

Time of First Successful Submission: 2026-03-28 00:16:32

CSRF 1

Time of First Successful Submission: 2026-03-31 01:38:47

CSRF 2

Time of First Successful Submission: 2026-04-01 01:12:55

CSRF 3

Time of First Successful Submission: 2026-04-01 03:20:17

CSRF 4

Time of First Successful Submission: 2026-04-02 04:10:08

CSRF 5

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

Connect

Time of First Successful Submission: 2026-04-03 16:32:42

Send

Time of First Successful Submission: 2026-04-03 16:34:04

Shutdown

Time of First Successful Submission: 2026-04-03 16:37:30

Listen

Time of First Successful Submission: 2026-04-03 16:40:11

Scan 1

Time of First Successful Submission: 2026-04-03 17:34:28

Scan 2

Time of First Successful Submission: 2026-04-03 19:21:30

Monitor 1

Time of First Successful Submission: 2026-04-04 00:56:37

Monitor 2

Time of First Successful Submission: 2026-04-04 01:18:35

Sniffing Cookies

Time of First Successful Submission: 2026-04-04 02:35:00

Network Configuration

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

Firewall 1

Time of First Successful Submission: 2026-04-04 02:48:37

Firewall 2

Time of First Successful Submission: 2026-04-04 02:51:21

Firewall 3

Time of First Successful Submission: 2026-04-04 03:00:23

Denial of Service 1

Time of First Successful Submission: 2026-04-04 21:56:11

Denial of Service 2

Time of First Successful Submission: 2026-04-04 22:54:10


Start Here

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Using the Terminal

Time of First Successful Submission: 2025-09-08 00:56:17

Using the VSCode Workspace

Time of First Successful Submission: 2025-09-08 00:58:21

Using the GUI Desktop

Time of First Successful Submission: 2025-09-08 01:04:22

Pasting into the Desktop

Time of First Successful Submission: 2025-09-08 01:06:05

Restarting Challenges

Time of First Successful Submission: 2025-09-08 01:08:11

Challenge Programs

Time of First Successful Submission: 2025-09-08 01:23:33

The Flag File

Time of First Successful Submission: 2025-09-08 02:14:53

Using Privileged Mode

Time of First Successful Submission: 2026-02-17 01:54:11

Persistent Home Directories - One

Time of First Successful Submission: 2025-09-09 16:56:35

Persistent Home Directories - Two

Time of First Successful Submission: 2025-09-09 16:57:29


Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2025-09-12 01:42:29

Intro to Arguments

Time of First Successful Submission: 2025-09-12 01:43:20

Command History

Time of First Successful Submission: 2025-09-12 01:43:56

The Root

Time of First Successful Submission: 2025-09-12 01:45:22

Program and absolute paths

Time of First Successful Submission: 2025-09-12 01:46:11

Position thy self

Time of First Successful Submission: 2025-09-12 01:56:32

Position elsewhere

Time of First Successful Submission: 2025-09-12 01:59:44

implicit relative paths, from /

Time of First Successful Submission: 2025-09-12 02:09:41

explicit relative paths, from /

Time of First Successful Submission: 2025-09-12 02:16:24

implicit relative path

Time of First Successful Submission: 2025-09-12 02:17:55

home sweet home

Time of First Successful Submission: 2025-09-12 02:27:58

cat: not the pet, but the command!

Time of First Successful Submission: 2025-09-12 02:29:29

catting absolute paths

Time of First Successful Submission: 2025-09-12 02:30:31

more catting practice

Time of First Successful Submission: 2025-09-12 02:32:57

grepping for a needle in a haystack

Time of First Successful Submission: 2025-09-12 02:34:19

comparing files

Time of First Successful Submission: 2025-09-12 02:35:53

listing files

Time of First Successful Submission: 2025-09-12 02:40:49

touching files

Time of First Successful Submission: 2025-09-12 02:43:19

removing files

Time of First Successful Submission: 2025-09-12 02:44:39

moving files

Time of First Successful Submission: 2025-09-12 02:45:49

copying files

Time of First Successful Submission: 2025-11-22 02:04:09

hidden files

Time of First Successful Submission: 2025-09-12 02:47:42

An Epic Filesystem Quest

Time of First Successful Submission: 2025-09-12 02:54:28

making directories

Time of First Successful Submission: 2025-09-12 02:58:13

finding files

Time of First Successful Submission: 2025-09-15 15:58:40

linking files

Time of First Successful Submission: 2025-09-16 15:49:13

Learning From Documentation

Time of First Successful Submission: 2025-09-16 15:58:38

Learning Complex Usage

Time of First Successful Submission: 2025-09-16 16:03:28

Reading Manuals

Time of First Successful Submission: 2025-09-17 15:53:36

Searching Manuals

Time of First Successful Submission: 2025-09-17 15:59:02

Searching For Manuals

Time of First Successful Submission: 2025-09-18 16:03:52

Helpful Programs

Time of First Successful Submission: 2025-09-22 15:43:07

Help for Builtins

Time of First Successful Submission: 2025-09-22 15:49:03

Matching with *

Time of First Successful Submission: 2025-09-22 15:52:38

Matching with ?

Time of First Successful Submission: 2025-09-22 15:54:28

Matching with []

Time of First Successful Submission: 2025-09-22 15:56:57

Matching paths with []

Time of First Successful Submission: 2025-09-22 16:04:10

Multiple globs

Time of First Successful Submission: 2025-09-23 15:43:02

Mixing globs

Time of First Successful Submission: 2025-09-23 15:50:34

Exclusionary globbing

Time of First Successful Submission: 2025-09-23 15:54:16

Tab completion

Time of First Successful Submission: 2025-09-23 15:55:34

Multiple options for tab completion

Time of First Successful Submission: 2025-09-23 15:57:29

Tab completion on commands

Time of First Successful Submission: 2025-09-23 15:58:38

Redirecting output

Time of First Successful Submission: 2025-09-26 15:47:34

Redirecting more output

Time of First Successful Submission: 2025-09-26 16:00:09

Appending output

Time of First Successful Submission: 2025-09-26 16:04:12

Redirecting errors

Time of First Successful Submission: 2025-09-29 15:46:35

Redirecting input

Time of First Successful Submission: 2025-09-29 16:02:11

Grepping stored results

Time of First Successful Submission: 2025-09-30 15:42:41

Grepping live output

Time of First Successful Submission: 2025-09-30 15:48:19

Grepping errors

Time of First Successful Submission: 2025-09-30 15:52:31

Filtering with grep -v

Time of First Successful Submission: 2025-09-30 15:54:46

Filtering with sed

Time of First Successful Submission: 2025-11-14 16:53:05

Duplicating piped data with tee

Time of First Successful Submission: 2025-09-30 16:00:18

Process substitution for input

Time of First Successful Submission: 2025-10-01 15:50:38

Writing to multiple programs

Time of First Successful Submission: 2025-10-08 15:56:48

Split-piping stderr and stdout

Time of First Successful Submission: 2025-11-05 17:01:46

Named pipes

Time of First Successful Submission: 2025-11-17 16:45:25

Printing Variables

Time of First Successful Submission: 2025-11-17 16:46:56

Setting Variables

Time of First Successful Submission: 2025-11-17 16:50:33

Multi-word Variables

Time of First Successful Submission: 2025-11-17 16:51:41

Exporting Variables

Time of First Successful Submission: 2025-11-17 16:55:23

Printing Exported Variables

Time of First Successful Submission: 2025-11-17 16:56:08

Storing Command Output

Time of First Successful Submission: 2025-11-17 17:01:01

Reading Input

Time of First Successful Submission: 2025-11-17 17:02:43

Reading Files

Time of First Successful Submission: 2025-11-18 16:48:30

Translating characters

Time of First Successful Submission: 2025-11-18 17:04:21

Deleting characters

Time of First Successful Submission: 2025-11-18 17:06:15

Deleting newlines

Time of First Successful Submission: 2025-11-18 17:07:45

Extracting the first lines with head

Time of First Successful Submission: 2025-11-20 16:44:29

Extracting specific sections of text

Time of First Successful Submission: 2025-11-20 16:48:40

Sorting data

Time of First Successful Submission: 2025-11-20 16:50:43

Listing Processes

Time of First Successful Submission: 2025-11-20 16:55:49

Killing Processes

Time of First Successful Submission: 2025-11-20 16:58:34

Interrupting Processes

Time of First Successful Submission: 2025-11-20 16:59:20

Killing Misbehaving Processes

Time of First Successful Submission: 2025-11-20 17:05:34

Suspending Processes

Time of First Successful Submission: 2025-11-20 17:06:29

Resuming Processes

Time of First Successful Submission: 2025-11-21 16:47:11

Backgrounding Processes

Time of First Successful Submission: 2025-11-21 16:50:48

Foregrounding Processes

Time of First Successful Submission: 2025-11-21 16:51:57

Starting Backgrounded Processes

Time of First Successful Submission: 2025-11-21 16:52:57

Process Exit Codes

Time of First Successful Submission: 2025-11-21 16:56:09

Becoming root with su

Time of First Successful Submission: 2025-11-21 17:01:14

Other users with su

Time of First Successful Submission: 2025-11-21 17:02:35

Cracking passwords

Time of First Successful Submission: 2025-11-22 02:08:52

Using sudo

Time of First Successful Submission: 2025-11-22 02:16:11

Changing File Ownership

Time of First Successful Submission: 2025-11-24 16:43:24

Groups and Files

Time of First Successful Submission: 2025-11-24 16:44:47

Fun With Groups Names

Time of First Successful Submission: 2025-11-24 16:47:22

Changing Permissions

Time of First Successful Submission: 2025-11-24 16:51:10

Executable Files

Time of First Successful Submission: 2025-11-24 16:54:26

Permission Tweaking Practice

Time of First Successful Submission: 2025-11-24 17:01:37

Permissions Setting Practice

Time of First Successful Submission: 2025-11-24 17:08:03

The SUID Bit

Time of First Successful Submission: 2025-11-24 18:35:30

Chaining with Semicolons

Time of First Successful Submission: 2025-11-24 18:36:53

Building on Success

Time of First Successful Submission: 2025-11-24 18:38:06

Handling Failure

Time of First Successful Submission: 2025-11-24 18:39:16

Your First Shell Script

Time of First Successful Submission: 2025-11-24 20:01:37

Redirecting Script Output

Time of First Successful Submission: 2025-11-24 20:04:06

Executable Shell Scripts

Time of First Successful Submission: 2025-11-24 20:10:48

Understanding Shebangs

Time of First Successful Submission: 2025-12-01 16:51:35

Scripting with Arguments

Time of First Successful Submission: 2025-12-03 16:46:09

Scripting with Conditionals

Time of First Successful Submission: 2025-12-03 16:48:48

Scripting with Default Cases

Time of First Successful Submission: 2025-12-03 16:50:31

Scripting with Multiple Conditions

Time of First Successful Submission: 2025-12-03 16:56:49

Reading Shell Scripts

Time of First Successful Submission: 2025-12-03 16:58:53

Launching Screen

Time of First Successful Submission: 2025-12-03 17:00:10

Detaching and Attaching

Time of First Successful Submission: 2025-12-04 16:42:33

Finding Sessions

Time of First Successful Submission: 2025-12-04 16:44:29

Switching Windows

Time of First Successful Submission: 2025-12-04 16:48:19

Detaching and Attaching (tmux)

Time of First Successful Submission: 2025-12-04 16:50:06

Switching Windows (tmux)

Time of First Successful Submission: 2025-12-04 16:53:58

The PATH Variable

Time of First Successful Submission: 2025-12-04 16:57:59

Setting PATH

Time of First Successful Submission: 2025-12-04 17:01:34

Finding Commands

Time of First Successful Submission: 2025-12-04 17:03:08

Adding Commands

Time of First Successful Submission: 2025-12-07 01:54:54

Hijacking Commands

Time of First Successful Submission: 2025-12-07 01:58:56

Bashrc Backdoor

Time of First Successful Submission: 2025-12-07 02:06:30

Sniffing Input

Time of First Successful Submission: 2025-12-07 02:15:05

Overshared Directories

Time of First Successful Submission: 2025-12-07 02:24:45

Tricky Linking

Time of First Successful Submission: 2025-12-10 02:04:06

Sniffing Process Arguments

Time of First Successful Submission: 2025-12-10 02:06:54

Snooping on Configurations

Time of First Successful Submission: 2025-12-10 02:10:19

The Fork Bomb

Time of First Successful Submission: 2025-12-10 02:30:36

Disk-Space Doomsday

Time of First Successful Submission: 2025-12-10 02:42:45

rm -rf /

Time of First Successful Submission: 2025-12-10 02:50:35

Life after rm -rf /

Time of First Successful Submission: 2025-12-10 03:01:31

Finding meaning after rm -rf /

Time of First Successful Submission: 2025-12-10 03:06:17


Computing 101

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Your First Register

Time of First Successful Submission: 2025-12-11 16:58:21

Your First Syscall

Time of First Successful Submission: 2025-12-11 17:00:21

Exit Codes

Time of First Successful Submission: 2025-12-11 17:02:39

Building Executables

Time of First Successful Submission: 2025-12-12 16:51:42

Moving Between Registers

Time of First Successful Submission: 2025-12-12 17:06:06

Loading From Memory

Time of First Successful Submission: 2025-12-16 03:40:18

More Loading Practice

Time of First Successful Submission: 2025-12-16 03:42:10

Dereferencing Pointers

Time of First Successful Submission: 2025-12-17 01:13:54

Dereferencing Yourself

Time of First Successful Submission: 2025-12-17 01:17:27

Dereferencing with Offsets

Time of First Successful Submission: 2025-12-17 01:23:47

Stored Addresses

Time of First Successful Submission: 2025-12-17 01:30:02

Double Dereference

Time of First Successful Submission: 2025-12-17 01:44:28

Tracing Syscalls

Time of First Successful Submission: 2025-12-16 01:35:39

Starting GDB

Time of First Successful Submission: 2025-12-16 01:37:14

Starting Programs in GDB

Time of First Successful Submission: 2025-12-16 01:39:16

Writing Output

Time of First Successful Submission: 2025-12-17 02:10:27

Chaining Syscalls

Time of First Successful Submission: 2025-12-17 02:12:14

Writing Strings

Time of First Successful Submission: 2025-12-17 02:13:13

Reading Data

Time of First Successful Submission: 2025-12-17 02:15:55

set-register

Time of First Successful Submission: 2025-12-22 16:44:17

set-multiple-registers

Time of First Successful Submission: 2025-12-22 16:48:49

add-to-register

Time of First Successful Submission: 2025-12-22 16:53:37

linear-equation-registers

Time of First Successful Submission: 2025-12-22 16:57:06

integer-division

Time of First Successful Submission: 2025-12-22 18:09:21

modulo-operation

Time of First Successful Submission: 2025-12-22 18:16:29

set-upper-byte

Time of First Successful Submission: 2025-12-22 18:19:04

efficient-modulo

Time of First Successful Submission: 2025-12-23 00:43:36

byte-extraction

Time of First Successful Submission: 2025-12-23 01:06:55

bitwise-and

Time of First Successful Submission: 2025-12-23 01:29:34

check-even

Time of First Successful Submission: 2025-12-24 02:36:32

memory-read

Time of First Successful Submission: 2025-12-24 02:40:36

memory-write

Time of First Successful Submission: 2025-12-24 02:53:16

memory-increment

Time of First Successful Submission: 2025-12-24 03:11:40

byte-access

Time of First Successful Submission: 2025-12-24 03:14:17

memory-size-access

Time of First Successful Submission: 2025-12-24 03:16:48

little-endian-write

Time of First Successful Submission: 2025-12-24 03:30:47

memory-sum

Time of First Successful Submission: 2025-12-26 21:24:15

stack-subtraction

Time of First Successful Submission: 2025-12-26 21:29:44

swap-stack-values

Time of First Successful Submission: 2025-12-26 21:31:14

average-stack-values

Time of First Successful Submission: 2025-12-26 21:46:16

absolute-jump

Time of First Successful Submission: 2025-12-29 20:17:11

relative-jump

Time of First Successful Submission: 2025-12-30 16:28:25

jump-trampoline

Time of First Successful Submission: 2025-12-30 16:32:03

conditional-jump

Time of First Successful Submission: 2025-12-30 23:40:04

indirect-jump

Time of First Successful Submission: 2025-12-31 21:13:13

average-loop

Time of First Successful Submission: 2025-12-31 22:11:29

count-non-zero

Time of First Successful Submission: 2026-01-01 15:26:21

string-lower

Time of First Successful Submission: 2026-01-06 03:10:56

most-common-byte

Time of First Successful Submission: 2026-01-16 04:54:28

Debugging Programs

Time of First Successful Submission: 2026-01-23 01:24:02

Inspecting Registers

Time of First Successful Submission: 2026-01-23 01:30:59

Examining Memory

Time of First Successful Submission: 2026-01-23 02:32:23


Playing With Programs

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What's the password?

Time of First Successful Submission: 2026-02-06 02:33:01

... and again!

Time of First Successful Submission: 2026-02-06 02:34:44

Newline Troubles

Time of First Successful Submission: 2026-02-06 02:38:04

Reasoning about files

Time of First Successful Submission: 2026-02-06 02:55:49

Specifying Filenames

Time of First Successful Submission: 2026-02-06 03:01:40

Binary and Hex Encoding

Time of First Successful Submission: 2026-02-07 01:43:24

More Hex

Time of First Successful Submission: 2026-02-07 01:48:40

Decoding Hex

Time of First Successful Submission: 2026-02-07 02:12:08

Decoding Practice

Time of First Successful Submission: 2026-02-07 19:09:05

Encoding Practice

Time of First Successful Submission: 2026-02-07 21:51:31

Hex-encoding ASCII

Time of First Successful Submission: 2026-02-10 01:52:48

Nested Encoding

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

Hex-encoding UTF-8

Time of First Successful Submission: 2026-02-11 01:35:16

UTF Mixups

Time of First Successful Submission: 2026-02-11 02:06:23

Modifying Encoded Data

Time of First Successful Submission: 2026-02-11 02:37:05

Decoding Base64

Time of First Successful Submission: 2026-02-12 01:57:06

Encoding Base64

Time of First Successful Submission: 2026-02-12 01:59:16

Dealing with Obfuscation

Time of First Successful Submission: 2026-02-12 14:44:03

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-02-12 15:57:41

Your First HTTP Request

Time of First Successful Submission: 2026-02-14 02:04:42

Reading Flask

Time of First Successful Submission: 2026-02-14 02:12:54

Commented Data

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

HTTP Metadata

Time of First Successful Submission: 2026-02-14 02:19:49

HTTP (netcat)

Time of First Successful Submission: 2026-02-14 02:26:45

HTTP Paths (netcat)

Time of First Successful Submission: 2026-02-15 14:14:45

HTTP (curl)

Time of First Successful Submission: 2026-02-15 14:21:03

HTTP (python)

Time of First Successful Submission: 2026-02-15 14:27:32

HTTP Host Header (python)

Time of First Successful Submission: 2026-02-15 14:39:10

HTTP Host Header (curl)

Time of First Successful Submission: 2026-02-17 01:59:58

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-02-17 02:11:00

URL Encoding (netcat)

Time of First Successful Submission: 2026-02-17 02:18:40

HTTP GET Parameters

Time of First Successful Submission: 2026-02-17 02:25:23

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-02-17 02:30:20

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-02-17 02:38:48

HTTP Forms

Time of First Successful Submission: 2026-02-17 02:41:34

HTTP Forms (curl)

Time of First Successful Submission: 2026-02-18 01:57:31

HTTP Forms (netcat)

Time of First Successful Submission: 2026-02-18 02:14:22

HTTP Forms (python)

Time of First Successful Submission: 2026-02-18 02:26:33

HTTP Forms Without Forms

Time of First Successful Submission: 2026-02-18 02:45:25

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-02-18 02:53:33

Multiple Form Fields (netcat)

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

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-02-20 02:27:33

HTTP Redirects (curl)

Time of First Successful Submission: 2026-02-20 02:37:53

HTTP Redirects (python)

Time of First Successful Submission: 2026-02-20 02:42:28

HTTP Cookies (curl)

Time of First Successful Submission: 2026-02-20 03:01:41

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-02-20 03:07:20

HTTP Cookies (python)

Time of First Successful Submission: 2026-02-20 03:10:36

Server State (python)

Time of First Successful Submission: 2026-02-20 03:18:45

Listening Web

Time of First Successful Submission: 2026-02-20 15:12:47

Speaking Redirects

Time of First Successful Submission: 2026-02-20 16:02:30

JavaScript Redirects

Time of First Successful Submission: 2026-02-20 16:23:01

Including JavaScript

Time of First Successful Submission: 2026-02-20 16:33:00

HTTP (javascript)

Time of First Successful Submission: 2026-02-20 17:45:04

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-02-20 20:01:39

HTTP Forms (javascript)

Time of First Successful Submission: 2026-02-20 20:51:29

cat

Time of First Successful Submission: 2026-02-21 00:26:15

more

Time of First Successful Submission: 2026-02-21 00:27:51

less

Time of First Successful Submission: 2026-02-21 00:28:16

tail

Time of First Successful Submission: 2026-02-21 00:28:57

head

Time of First Successful Submission: 2026-02-21 00:29:36

sort

Time of First Successful Submission: 2026-02-21 00:30:10

vim

Time of First Successful Submission: 2026-02-21 00:30:56

emacs

Time of First Successful Submission: 2026-02-21 00:31:39

nano

Time of First Successful Submission: 2026-02-21 00:32:57

rev

Time of First Successful Submission: 2026-02-21 00:33:37

od

Time of First Successful Submission: 2026-02-21 00:44:20

hd

Time of First Successful Submission: 2026-02-21 00:51:38

xxd

Time of First Successful Submission: 2026-02-21 00:55:01

base32

Time of First Successful Submission: 2026-02-21 00:56:43

base64

Time of First Successful Submission: 2026-02-21 00:57:42

split

Time of First Successful Submission: 2026-02-21 01:01:36

gzip

Time of First Successful Submission: 2026-02-21 01:17:44

bzip2

Time of First Successful Submission: 2026-02-21 01:22:09

zip

Time of First Successful Submission: 2026-02-21 01:27:17

tar

Time of First Successful Submission: 2026-02-21 01:50:53

ar

Time of First Successful Submission: 2026-02-21 02:01:22

cpio

Time of First Successful Submission: 2026-02-21 02:12:58

genisoimage

Time of First Successful Submission: 2026-02-21 02:32:23

env

Time of First Successful Submission: 2026-02-21 02:37:31

find

Time of First Successful Submission: 2026-02-21 02:57:37

make

Time of First Successful Submission: 2026-02-24 02:00:48

nice

Time of First Successful Submission: 2026-02-24 02:03:13

timeout

Time of First Successful Submission: 2026-02-24 02:05:27

stdbuf

Time of First Successful Submission: 2026-02-24 02:07:42

setarch

Time of First Successful Submission: 2026-02-24 02:11:47

watch

Time of First Successful Submission: 2026-02-24 02:13:36

socat

Time of First Successful Submission: 2026-02-24 02:16:55

whiptail

Time of First Successful Submission: 2026-02-24 02:25:45

awk

Time of First Successful Submission: 2026-02-24 02:31:53

sed

Time of First Successful Submission: 2026-02-24 02:38:23

ed

Time of First Successful Submission: 2026-02-24 02:44:15

chown

Time of First Successful Submission: 2026-02-24 02:46:15

chmod

Time of First Successful Submission: 2026-02-24 02:46:55

cp

Time of First Successful Submission: 2026-02-24 02:53:38

mv

Time of First Successful Submission: 2026-02-24 03:15:36

perl

Time of First Successful Submission: 2026-02-24 03:19:20

python

Time of First Successful Submission: 2026-02-24 03:24:28

ruby

Time of First Successful Submission: 2026-02-24 03:31:13

bash

Time of First Successful Submission: 2026-02-24 03:37:05

date

Time of First Successful Submission: 2026-02-25 00:51:11

dmesg

Time of First Successful Submission: 2026-02-25 00:53:46

wc

Time of First Successful Submission: 2026-02-25 01:04:42

gcc

Time of First Successful Submission: 2026-02-25 01:08:58

as

Time of First Successful Submission: 2026-02-25 01:10:46

wget

Time of First Successful Submission: 2026-02-25 01:18:25

ssh-keygen

Time of First Successful Submission: 2026-02-25 01:30:55

SQL Queries

Time of First Successful Submission: 2026-02-25 02:02:41

Filtering SQL

Time of First Successful Submission: 2026-02-25 02:33:08

Choosing Columns

Time of First Successful Submission: 2026-02-26 01:47:51

Exclusionary Filtering

Time of First Successful Submission: 2026-02-26 02:04:56

Filtering Strings

Time of First Successful Submission: 2026-02-26 02:27:09

Filtering on Expressions

Time of First Successful Submission: 2026-02-27 02:22:30

SELECTing Expressions

Time of First Successful Submission: 2026-02-27 03:51:54

Composite Conditions

Time of First Successful Submission: 2026-03-03 02:19:57

Reaching Your LIMITs

Time of First Successful Submission: 2026-03-03 02:59:34

Querying Metadata

Time of First Successful Submission: 2026-03-03 03:11:37


GCA CTF

11 / 104 8346 / 43655


Using the Terminal

Time of First Successful Submission: 2025-09-08 00:56:17

Using the VSCode Workspace

Time of First Successful Submission: 2025-09-08 00:58:21

Using the GUI Desktop

Time of First Successful Submission: 2025-09-08 01:04:22

Pasting into the Desktop

Time of First Successful Submission: 2025-09-08 01:06:05

Restarting Challenges

Time of First Successful Submission: 2025-09-08 01:08:11

Getting Help

Time of First Successful Submission: 2025-09-08 01:09:52

Challenge Programs

Time of First Successful Submission: 2025-09-08 01:23:33

The Flag File

Time of First Successful Submission: 2025-09-08 02:14:53

Using Privileged Mode

Time of First Successful Submission: 2026-02-17 01:54:11

Persistent Home Directories - One

Time of First Successful Submission: 2025-09-09 16:56:35

Persistent Home Directories - Two

Time of First Successful Submission: 2025-09-09 16:57:29