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level1

Time of First Successful Submission: 2026-04-30 03:37:06

level2

Time of First Successful Submission: 2026-04-30 03:41:55

level2a

Time of First Successful Submission: 2026-04-30 03:38:41

level3

Time of First Successful Submission: 2026-04-30 03:46:39

level4

Time of First Successful Submission: 2026-04-30 04:02:08

level5

Time of First Successful Submission: 2026-04-30 04:26:04

level6

Time of First Successful Submission: 2026-04-30 06:30:23

level6a

Time of First Successful Submission: 2026-04-30 04:29:22

level7

Time of First Successful Submission: 2026-04-30 19:46:00

level8

Time of First Successful Submission: 2026-04-30 19:55:06

level9

Time of First Successful Submission: 2026-04-30 20:19:49

level10

Time of First Successful Submission: 2026-04-30 20:35:35

level10a

Time of First Successful Submission: 2026-04-30 20:27:25

level10b

Time of First Successful Submission: 2026-04-30 20:29:36

level11

Time of First Successful Submission: 2026-04-30 20:46:13

level11a

Time of First Successful Submission: 2026-04-30 20:38:19

level12

Time of First Successful Submission: 2026-04-30 21:03:08

level13

Time of First Successful Submission: 2026-04-30 22:35:29

level14

Time of First Successful Submission: 2026-04-30 22:37:37

level15

Time of First Successful Submission: 2026-04-30 22:40:02

level16

Time of First Successful Submission: 2026-04-30 22:46:54

level17

Time of First Successful Submission: 2026-05-01 02:31:16

level17a

Time of First Successful Submission: 2026-04-30 22:49:14

level17b

Time of First Successful Submission: 2026-05-01 02:24:05

level18

Time of First Successful Submission: 2026-05-01 03:04:31

level19

Time of First Successful Submission: 2026-05-01 04:18:07

level20

Time of First Successful Submission: 2026-05-01 06:01:59

level21

Time of First Successful Submission: 2026-05-01 06:35:54

level22

Time of First Successful Submission: 2026-05-01 18:55:44

level23

Time of First Successful Submission: 2026-05-02 00:50:06


Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-04-22 05:56:54

Command Arguments

Time of First Successful Submission: 2026-04-22 05:58:30

Command History

Time of First Successful Submission: 2026-04-22 05:59:18

The Root Path

Time of First Successful Submission: 2026-04-22 06:36:57

Absolute Paths

Time of First Successful Submission: 2026-04-22 06:37:39

Changing position

Time of First Successful Submission: 2026-04-22 06:40:22

Changing to an Absolute Path

Time of First Successful Submission: 2026-04-22 06:41:29

Relative Paths

Time of First Successful Submission: 2026-04-22 06:42:59

Cat

Time of First Successful Submission: 2026-04-24 03:16:27

Ls

Time of First Successful Submission: 2026-04-24 03:23:51

Ls All

Time of First Successful Submission: 2026-04-24 03:30:35

Find

Time of First Successful Submission: 2026-04-24 03:46:20

Piping Echo

Time of First Successful Submission: 2026-04-25 02:58:47

Piping Stdout

Time of First Successful Submission: 2026-04-25 03:01:12

Piping Stdin

Time of First Successful Submission: 2026-04-25 03:15:39


Intro to Cybersecurity

77 / 183 4078 / 21216


Path Traversal 1

Time of First Successful Submission: 2026-05-28 01:32:41

Path Traversal 2

Time of First Successful Submission: 2026-05-28 01:46:39

CMDi 1

Time of First Successful Submission: 2026-05-28 01:54:33

CMDi 2

Time of First Successful Submission: 2026-05-28 02:01:08

CMDi 3

Time of First Successful Submission: 2026-05-28 02:08:04

CMDi 4

Time of First Successful Submission: 2026-05-28 02:16:27

CMDi 5

Time of First Successful Submission: 2026-05-28 02:26:11

CMDi 6

Time of First Successful Submission: 2026-05-28 02:35:56

Authentication Bypass 1

Time of First Successful Submission: 2026-05-28 04:18:35

Authentication Bypass 2

Time of First Successful Submission: 2026-05-28 04:20:53

SQLi 1

Time of First Successful Submission: 2026-05-28 05:08:27

SQLi 2

Time of First Successful Submission: 2026-05-28 05:20:27

SQLi 3

Time of First Successful Submission: 2026-05-28 16:05:44

SQLi 4

Time of First Successful Submission: 2026-05-28 16:11:42

SQLi 5

Time of First Successful Submission: 2026-05-29 04:56:51

XSS 1

Time of First Successful Submission: 2026-05-29 15:43:27

XSS 2

Time of First Successful Submission: 2026-05-29 15:49:34

XSS 3

Time of First Successful Submission: 2026-05-29 15:54:03

XSS 4

Time of First Successful Submission: 2026-05-29 15:56:32

XSS 5

Time of First Successful Submission: 2026-05-29 18:00:47

XSS 6

Time of First Successful Submission: 2026-05-29 18:08:30

XSS 7

Time of First Successful Submission: 2026-05-29 18:39:27

CSRF 1

Time of First Successful Submission: 2026-05-30 05:36:13

CSRF 2

Time of First Successful Submission: 2026-05-30 05:55:07

CSRF 3

Time of First Successful Submission: 2026-05-30 16:29:58

CSRF 4

Time of First Successful Submission: 2026-05-30 17:03:21

CSRF 5

Time of First Successful Submission: 2026-05-31 04:17:34

Connect

Time of First Successful Submission: 2026-05-31 14:30:04

Send

Time of First Successful Submission: 2026-05-31 14:32:44

Shutdown

Time of First Successful Submission: 2026-05-31 14:36:31

Listen

Time of First Successful Submission: 2026-05-31 14:37:56

Scan 1

Time of First Successful Submission: 2026-05-31 15:01:56

Scan 2

Time of First Successful Submission: 2026-05-31 15:17:09

Monitor 1

Time of First Successful Submission: 2026-06-01 02:38:30

Monitor 2

Time of First Successful Submission: 2026-06-01 02:54:08

Sniffing Cookies

Time of First Successful Submission: 2026-06-01 03:13:42

Network Configuration

Time of First Successful Submission: 2026-06-01 03:21:47

Firewall 1

Time of First Successful Submission: 2026-06-01 03:27:12

Firewall 2

Time of First Successful Submission: 2026-06-01 03:28:29

Firewall 3

Time of First Successful Submission: 2026-06-01 03:30:17

Denial of Service 1

Time of First Successful Submission: 2026-06-01 03:34:32

Denial of Service 2

Time of First Successful Submission: 2026-06-01 03:35:55

Denial of Service 3

Time of First Successful Submission: 2026-06-02 04:33:02

Ethernet

Time of First Successful Submission: 2026-06-02 04:41:55

IP

Time of First Successful Submission: 2026-06-02 04:45:24

TCP

Time of First Successful Submission: 2026-06-02 04:47:14

TCP Handshake

Time of First Successful Submission: 2026-06-02 04:48:55

UDP

Time of First Successful Submission: 2026-06-02 04:51:17

UDP 2

Time of First Successful Submission: 2026-06-02 04:53:27

UDP Spoofing 1

Time of First Successful Submission: 2026-06-02 04:55:13

UDP Spoofing 2

Time of First Successful Submission: 2026-06-02 04:59:06

UDP Spoofing 3

Time of First Successful Submission: 2026-06-02 05:06:29

UDP Spoofing 4

Time of First Successful Submission: 2026-06-02 05:09:49

ARP

Time of First Successful Submission: 2026-06-02 05:11:13

Intercept

Time of First Successful Submission: 2026-06-02 05:46:55

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2026-06-04 02:14:33

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2026-06-04 07:20:42

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2026-06-04 07:28:40

Reading Endianness (Python)

Time of First Successful Submission: 2026-06-04 07:34:02

Reading Endianness (C)

Time of First Successful Submission: 2026-06-04 16:02:47

Reading Endianness (x86)

Time of First Successful Submission: 2026-06-04 16:04:50

Version Information (Python)

Time of First Successful Submission: 2026-06-04 16:11:14

Version Information (C)

Time of First Successful Submission: 2026-06-04 16:15:54

Version Information (x86)

Time of First Successful Submission: 2026-06-04 16:30:46

Metadata and Data (Python)

Time of First Successful Submission: 2026-06-04 16:39:31

Metadata and Data (C)

Time of First Successful Submission: 2026-06-04 16:50:03

Metadata and Data (x86)

Time of First Successful Submission: 2026-06-04 16:54:40

Input Restrictions (Python)

Time of First Successful Submission: 2026-06-04 19:18:36

Input Restrictions (C)

Time of First Successful Submission: 2026-06-04 19:26:49

Input Restrictions (x86)

Time of First Successful Submission: 2026-06-04 19:29:53

Behold the cIMG! (Python)

Time of First Successful Submission: 2026-06-05 04:58:04

Behold the cIMG! (C)

Time of First Successful Submission: 2026-06-05 16:22:53

Behold the cIMG! (x86)

Time of First Successful Submission: 2026-06-05 16:26:11

A Basic cIMG (Python)

Time of First Successful Submission: 2026-06-05 16:46:00

A Basic cIMG (C)

Time of First Successful Submission: 2026-06-05 16:55:54

A Basic cIMG (x86)

Time of First Successful Submission: 2026-06-05 17:00:45

Internal State Mini (C)

Time of First Successful Submission: 2026-06-09 18:05:17


Start Here

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Using the Terminal

Time of First Successful Submission: 2026-04-22 05:28:14

Using the VSCode Workspace

Time of First Successful Submission: 2026-04-22 05:31:09

Using the GUI Desktop

Time of First Successful Submission: 2026-04-22 05:40:14

Pasting into the Desktop

Time of First Successful Submission: 2026-04-22 05:42:04

Restarting Challenges

Time of First Successful Submission: 2026-04-22 05:52:01

Challenge Programs

Time of First Successful Submission: 2026-04-22 06:02:15

The Flag File

Time of First Successful Submission: 2026-04-22 06:04:13

Using Privileged Mode

Time of First Successful Submission: 2026-04-22 06:14:27

Persistent Home Directories - One

Time of First Successful Submission: 2026-04-22 06:18:02

Persistent Home Directories - Two

Time of First Successful Submission: 2026-04-22 06:18:50


Linux Luminarium

128 / 128 2900 / 35363


Intro to Commands

Time of First Successful Submission: 2026-04-22 05:56:54

Intro to Arguments

Time of First Successful Submission: 2026-04-22 05:58:30

Command History

Time of First Successful Submission: 2026-04-22 05:59:18

The Root

Time of First Successful Submission: 2026-04-22 06:36:57

Program and absolute paths

Time of First Successful Submission: 2026-04-22 06:37:39

Position thy self

Time of First Successful Submission: 2026-04-22 06:40:22

Position elsewhere

Time of First Successful Submission: 2026-04-22 06:41:29

implicit relative paths, from /

Time of First Successful Submission: 2026-04-22 06:42:59

explicit relative paths, from /

Time of First Successful Submission: 2026-04-22 06:44:11

implicit relative path

Time of First Successful Submission: 2026-04-22 06:45:06

home sweet home

Time of First Successful Submission: 2026-04-22 06:50:45

cat: not the pet, but the command!

Time of First Successful Submission: 2026-04-24 03:16:27

catting absolute paths

Time of First Successful Submission: 2026-04-24 03:17:23

more catting practice

Time of First Successful Submission: 2026-04-24 03:18:22

grepping for a needle in a haystack

Time of First Successful Submission: 2026-04-24 03:20:10

comparing files

Time of First Successful Submission: 2026-04-24 03:22:59

listing files

Time of First Successful Submission: 2026-04-24 03:23:51

touching files

Time of First Successful Submission: 2026-04-24 03:26:16

removing files

Time of First Successful Submission: 2026-04-24 03:26:53

moving files

Time of First Successful Submission: 2026-04-24 03:28:44

copying files

Time of First Successful Submission: 2026-04-24 03:29:46

hidden files

Time of First Successful Submission: 2026-04-24 03:30:35

An Epic Filesystem Quest

Time of First Successful Submission: 2026-04-24 03:37:36

making directories

Time of First Successful Submission: 2026-04-24 03:38:32

finding files

Time of First Successful Submission: 2026-04-24 03:46:20

linking files

Time of First Successful Submission: 2026-04-24 03:51:13

Learning From Documentation

Time of First Successful Submission: 2026-04-25 01:48:42

Learning Complex Usage

Time of First Successful Submission: 2026-04-25 01:50:26

Reading Manuals

Time of First Successful Submission: 2026-04-25 01:54:04

Searching Manuals

Time of First Successful Submission: 2026-04-25 01:55:22

Searching For Manuals

Time of First Successful Submission: 2026-04-25 02:10:43

Helpful Programs

Time of First Successful Submission: 2026-04-25 02:13:14

Help for Builtins

Time of First Successful Submission: 2026-04-25 02:14:51

Matching with *

Time of First Successful Submission: 2026-04-25 02:23:22

Matching with ?

Time of First Successful Submission: 2026-04-25 02:26:07

Matching with []

Time of First Successful Submission: 2026-04-25 02:28:08

Matching paths with []

Time of First Successful Submission: 2026-04-25 02:30:45

Multiple globs

Time of First Successful Submission: 2026-04-25 02:33:14

Mixing globs

Time of First Successful Submission: 2026-04-25 02:50:05

Exclusionary globbing

Time of First Successful Submission: 2026-04-25 02:51:58

Tab completion

Time of First Successful Submission: 2026-04-25 02:54:05

Multiple options for tab completion

Time of First Successful Submission: 2026-04-25 02:55:39

Tab completion on commands

Time of First Successful Submission: 2026-04-25 02:56:27

Redirecting output

Time of First Successful Submission: 2026-04-25 02:58:47

Redirecting more output

Time of First Successful Submission: 2026-04-25 03:01:12

Appending output

Time of First Successful Submission: 2026-04-25 03:03:06

Redirecting errors

Time of First Successful Submission: 2026-04-25 03:13:40

Redirecting input

Time of First Successful Submission: 2026-04-25 03:15:39

Grepping stored results

Time of First Successful Submission: 2026-04-25 03:18:08

Grepping live output

Time of First Successful Submission: 2026-04-25 03:20:00

Grepping errors

Time of First Successful Submission: 2026-04-25 03:21:59

Filtering with grep -v

Time of First Successful Submission: 2026-04-25 03:24:25

Filtering with sed

Time of First Successful Submission: 2026-04-25 03:27:20

Duplicating piped data with tee

Time of First Successful Submission: 2026-04-25 03:33:34

Process substitution for input

Time of First Successful Submission: 2026-04-25 03:37:09

Writing to multiple programs

Time of First Successful Submission: 2026-04-25 03:46:27

Split-piping stderr and stdout

Time of First Successful Submission: 2026-04-25 03:57:01

Named pipes

Time of First Successful Submission: 2026-04-25 04:02:31

Printing Variables

Time of First Successful Submission: 2026-04-25 04:47:42

Setting Variables

Time of First Successful Submission: 2026-04-25 04:49:51

Multi-word Variables

Time of First Successful Submission: 2026-04-25 04:50:43

Exporting Variables

Time of First Successful Submission: 2026-04-25 04:53:27

Printing Exported Variables

Time of First Successful Submission: 2026-04-25 04:54:10

Storing Command Output

Time of First Successful Submission: 2026-04-25 04:55:56

Reading Input

Time of First Successful Submission: 2026-04-25 04:58:03

Reading Files

Time of First Successful Submission: 2026-04-25 04:59:52

Translating characters

Time of First Successful Submission: 2026-04-25 05:04:57

Deleting characters

Time of First Successful Submission: 2026-04-25 05:05:41

Deleting newlines

Time of First Successful Submission: 2026-04-25 05:07:40

Extracting the first lines with head

Time of First Successful Submission: 2026-04-25 05:08:47

Extracting specific sections of text

Time of First Successful Submission: 2026-04-25 05:11:04

Sorting data

Time of First Successful Submission: 2026-04-25 05:12:55

Listing Processes

Time of First Successful Submission: 2026-04-25 06:54:19

Killing Processes

Time of First Successful Submission: 2026-04-25 06:57:26

Interrupting Processes

Time of First Successful Submission: 2026-04-25 06:58:01

Killing Misbehaving Processes

Time of First Successful Submission: 2026-04-25 07:04:48

Suspending Processes

Time of First Successful Submission: 2026-04-25 07:13:02

Resuming Processes

Time of First Successful Submission: 2026-04-25 07:14:03

Backgrounding Processes

Time of First Successful Submission: 2026-04-25 07:16:52

Foregrounding Processes

Time of First Successful Submission: 2026-04-25 07:18:00

Starting Backgrounded Processes

Time of First Successful Submission: 2026-04-25 07:19:02

Process Exit Codes

Time of First Successful Submission: 2026-04-25 07:20:43

Becoming root with su

Time of First Successful Submission: 2026-04-25 07:33:28

Other users with su

Time of First Successful Submission: 2026-04-25 07:35:08

Cracking passwords

Time of First Successful Submission: 2026-04-25 07:39:37

Using sudo

Time of First Successful Submission: 2026-04-25 07:42:36

Changing File Ownership

Time of First Successful Submission: 2026-04-25 19:46:31

Groups and Files

Time of First Successful Submission: 2026-04-25 19:47:53

Fun With Groups Names

Time of First Successful Submission: 2026-04-25 19:50:16

Changing Permissions

Time of First Successful Submission: 2026-04-25 19:52:50

Executable Files

Time of First Successful Submission: 2026-04-25 19:54:33

Permission Tweaking Practice

Time of First Successful Submission: 2026-04-25 19:59:18

Permissions Setting Practice

Time of First Successful Submission: 2026-04-25 20:09:48

The SUID Bit

Time of First Successful Submission: 2026-04-25 20:15:49

Chaining with Semicolons

Time of First Successful Submission: 2026-04-25 20:17:36

Building on Success

Time of First Successful Submission: 2026-04-25 20:19:09

Handling Failure

Time of First Successful Submission: 2026-04-25 20:20:09

Your First Shell Script

Time of First Successful Submission: 2026-04-25 20:23:22

Redirecting Script Output

Time of First Successful Submission: 2026-04-25 20:30:06

Executable Shell Scripts

Time of First Successful Submission: 2026-04-25 20:30:59

Understanding Shebangs

Time of First Successful Submission: 2026-04-25 20:34:35

Scripting with Arguments

Time of First Successful Submission: 2026-04-25 20:36:08

Scripting with Conditionals

Time of First Successful Submission: 2026-04-25 20:39:05

Scripting with Default Cases

Time of First Successful Submission: 2026-04-25 20:41:11

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-04-25 20:44:19

Reading Shell Scripts

Time of First Successful Submission: 2026-04-25 20:46:40

Launching Screen

Time of First Successful Submission: 2026-04-25 21:35:45

Detaching and Attaching

Time of First Successful Submission: 2026-04-25 21:37:47

Finding Sessions

Time of First Successful Submission: 2026-04-25 21:40:58

Switching Windows

Time of First Successful Submission: 2026-04-25 21:57:16

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-04-25 22:04:31

Switching Windows (tmux)

Time of First Successful Submission: 2026-04-25 22:17:51

The PATH Variable

Time of First Successful Submission: 2026-04-26 02:15:08

Setting PATH

Time of First Successful Submission: 2026-04-26 02:16:43

Finding Commands

Time of First Successful Submission: 2026-04-26 02:18:03

Adding Commands

Time of First Successful Submission: 2026-04-26 02:24:52

Hijacking Commands

Time of First Successful Submission: 2026-04-26 02:28:42

Bashrc Backdoor

Time of First Successful Submission: 2026-04-26 02:32:15

Sniffing Input

Time of First Successful Submission: 2026-04-26 07:06:12

Overshared Directories

Time of First Successful Submission: 2026-04-26 07:18:57

Tricky Linking

Time of First Successful Submission: 2026-04-26 07:38:21

Sniffing Process Arguments

Time of First Successful Submission: 2026-04-26 07:43:50

Snooping on Configurations

Time of First Successful Submission: 2026-04-26 07:45:41

The Fork Bomb

Time of First Successful Submission: 2026-04-27 00:19:16

Disk-Space Doomsday

Time of First Successful Submission: 2026-04-27 00:24:09

rm -rf /

Time of First Successful Submission: 2026-04-27 00:27:56

Life after rm -rf /

Time of First Successful Submission: 2026-04-27 00:42:35

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-04-27 00:44:55


Computing 101

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Your First Register

Time of First Successful Submission: 2026-04-28 03:07:24

Your First Syscall

Time of First Successful Submission: 2026-04-28 03:11:56

Exit Codes

Time of First Successful Submission: 2026-04-28 03:15:27

Building Executables

Time of First Successful Submission: 2026-04-28 03:25:35

Moving Between Registers

Time of First Successful Submission: 2026-04-28 03:28:50

Loading From Memory

Time of First Successful Submission: 2026-04-28 03:51:57

More Loading Practice

Time of First Successful Submission: 2026-04-28 03:55:36

Dereferencing Pointers

Time of First Successful Submission: 2026-04-28 04:02:24

Dereferencing Yourself

Time of First Successful Submission: 2026-04-28 04:05:41

Dereferencing with Offsets

Time of First Successful Submission: 2026-04-28 04:13:27

Stored Addresses

Time of First Successful Submission: 2026-04-28 04:45:31

Double Dereference

Time of First Successful Submission: 2026-04-28 04:50:59

The Stack

Time of First Successful Submission: 2026-04-28 22:34:15

Stack Offsets

Time of First Successful Submission: 2026-04-28 22:37:47

Program Arguments on the Stack

Time of First Successful Submission: 2026-04-28 22:43:08

Popping From the Stack

Time of First Successful Submission: 2026-04-28 22:48:35

Disassembling Programs

Time of First Successful Submission: 2026-04-28 22:57:42

Tracing Syscalls

Time of First Successful Submission: 2026-04-28 23:03:13

Starting GDB

Time of First Successful Submission: 2026-04-28 23:05:25

Quitting GDB

Time of First Successful Submission: 2026-04-28 23:06:12

Starting Programs in GDB

Time of First Successful Submission: 2026-04-28 23:09:38

Disassembling in GDB

Time of First Successful Submission: 2026-04-28 23:10:57

Stepping Through Instructions

Time of First Successful Submission: 2026-04-28 23:13:20

Reading Register Values

Time of First Successful Submission: 2026-04-28 23:15:25

Popping Stack Values

Time of First Successful Submission: 2026-04-28 23:18:36

Examining Memory

Time of First Successful Submission: 2026-04-28 23:21:11

Examining Stack Pointers

Time of First Successful Submission: 2026-04-28 23:25:56

Cooperative Debugging

Time of First Successful Submission: 2026-04-28 23:31:17

Running with Arguments

Time of First Successful Submission: 2026-06-04 00:13:19

Writing Output

Time of First Successful Submission: 2026-04-29 00:28:33

Chaining Syscalls

Time of First Successful Submission: 2026-04-29 00:31:41

Writing Strings

Time of First Successful Submission: 2026-04-29 00:33:17

Reading Data

Time of First Successful Submission: 2026-04-29 01:07:28

Opening Files

Time of First Successful Submission: 2026-04-29 01:43:40

Hardcoding the Filename

Time of First Successful Submission: 2026-04-29 02:01:31

Comparing Values

Time of First Successful Submission: 2026-04-29 07:14:10

Comparing Characters

Time of First Successful Submission: 2026-04-29 07:27:40

Conditional Control Flow

Time of First Successful Submission: 2026-04-29 07:44:58

Comparing Strings

Time of First Successful Submission: 2026-04-29 18:17:41

Reverse the Password

Time of First Successful Submission: 2026-04-29 18:29:41

Conditionals Without Conditionals

Time of First Successful Submission: 2026-04-29 22:11:30

Looping

Time of First Successful Submission: 2026-04-29 23:20:22

Writing From a Shared Library

Time of First Successful Submission: 2026-06-04 00:30:25

Returning a Value

Time of First Successful Submission: 2026-06-04 00:40:42

Calling Through a Pointer

Time of First Successful Submission: 2026-06-04 00:43:50

Calling Through a Pointer with an Argument

Time of First Successful Submission: 2026-06-04 00:45:04

Reverse the Calculation

Time of First Successful Submission: 2026-04-29 23:35:02

Reverse the Reverse

Time of First Successful Submission: 2026-04-29 23:37:29

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-04-29 23:52:26

Loops on Data

Time of First Successful Submission: 2026-04-29 23:55:57

Reaching Into the Caller's Frame

Time of First Successful Submission: 2026-06-04 01:15:42

Environment Variables on the Stack

Time of First Successful Submission: 2026-06-04 01:22:29

Aligning the Stack Through the Environment

Time of First Successful Submission: 2026-06-04 01:30:49

Aligning the Stack Through GDB

Time of First Successful Submission: 2026-06-04 01:34:00

Aligning the Stack Through GDB, Generalized

Time of First Successful Submission: 2026-06-04 01:37:41

Exit

Time of First Successful Submission: 2026-05-02 02:15:26

Socket

Time of First Successful Submission: 2026-05-02 02:28:52

Bind

Time of First Successful Submission: 2026-05-02 02:55:41

Listen

Time of First Successful Submission: 2026-05-11 06:20:12

Accept

Time of First Successful Submission: 2026-05-11 15:59:20

Static Response

Time of First Successful Submission: 2026-05-11 16:25:07

Dynamic Response

Time of First Successful Submission: 2026-05-11 19:08:29

Iterative GET Server

Time of First Successful Submission: 2026-05-11 19:19:00

Concurrent GET Server

Time of First Successful Submission: 2026-05-11 20:15:19

Concurrent POST Server

Time of First Successful Submission: 2026-05-12 01:50:58

Web Server

Time of First Successful Submission: 2026-05-12 19:43:55

Debugging Programs

Time of First Successful Submission: 2026-05-12 20:59:21

Inspecting Registers

Time of First Successful Submission: 2026-05-12 21:02:36

Examining Memory

Time of First Successful Submission: 2026-05-12 21:16:55

Setting Breakpoints

Time of First Successful Submission: 2026-05-13 06:45:22

GDB Scripting

Time of First Successful Submission: 2026-05-18 05:00:46

Modifying Data

Time of First Successful Submission: 2026-05-18 05:06:00

Modifying Execution

Time of First Successful Submission: 2026-05-18 05:08:29

Broken Functions

Time of First Successful Submission: 2026-05-18 05:37:14


Playing With Programs

116 / 116 962 / 24093


What's the password?

Time of First Successful Submission: 2026-05-18 06:10:31

... and again!

Time of First Successful Submission: 2026-05-18 06:11:08

Newline Troubles

Time of First Successful Submission: 2026-05-18 06:13:53

Reasoning about files

Time of First Successful Submission: 2026-05-18 06:20:18

Specifying Filenames

Time of First Successful Submission: 2026-05-18 06:21:32

Binary and Hex Encoding

Time of First Successful Submission: 2026-05-19 08:07:24

More Hex

Time of First Successful Submission: 2026-05-19 08:09:27

Decoding Hex

Time of First Successful Submission: 2026-05-19 08:13:11

Decoding Practice

Time of First Successful Submission: 2026-05-19 08:20:22

Encoding Practice

Time of First Successful Submission: 2026-05-19 08:26:17

Hex-encoding ASCII

Time of First Successful Submission: 2026-05-19 08:35:16

Nested Encoding

Time of First Successful Submission: 2026-05-19 15:24:28

Hex-encoding UTF-8

Time of First Successful Submission: 2026-05-19 15:54:48

UTF Mixups

Time of First Successful Submission: 2026-05-19 18:01:25

Modifying Encoded Data

Time of First Successful Submission: 2026-05-20 20:14:48

Decoding Base64

Time of First Successful Submission: 2026-05-20 20:48:26

Encoding Base64

Time of First Successful Submission: 2026-05-20 23:20:35

Dealing with Obfuscation

Time of First Successful Submission: 2026-05-20 23:25:19

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-05-20 23:43:49

Your First HTTP Request

Time of First Successful Submission: 2026-05-21 00:52:39

Reading Flask

Time of First Successful Submission: 2026-05-21 00:55:44

Commented Data

Time of First Successful Submission: 2026-05-21 01:00:55

HTTP Metadata

Time of First Successful Submission: 2026-05-21 01:04:01

HTTP (netcat)

Time of First Successful Submission: 2026-05-21 04:01:58

HTTP Paths (netcat)

Time of First Successful Submission: 2026-05-21 04:04:54

HTTP (curl)

Time of First Successful Submission: 2026-05-21 04:07:40

HTTP (python)

Time of First Successful Submission: 2026-05-21 04:12:51

HTTP Host Header (python)

Time of First Successful Submission: 2026-05-21 04:22:41

HTTP Host Header (curl)

Time of First Successful Submission: 2026-05-21 04:28:22

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-05-21 04:32:16

URL Encoding (netcat)

Time of First Successful Submission: 2026-05-21 04:43:46

HTTP GET Parameters

Time of First Successful Submission: 2026-05-21 15:26:30

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-05-21 15:33:46

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-05-21 15:37:11

HTTP Forms

Time of First Successful Submission: 2026-05-21 15:42:04

HTTP Forms (curl)

Time of First Successful Submission: 2026-05-21 15:46:49

HTTP Forms (netcat)

Time of First Successful Submission: 2026-05-21 15:55:55

HTTP Forms (python)

Time of First Successful Submission: 2026-05-21 15:59:26

HTTP Forms Without Forms

Time of First Successful Submission: 2026-05-21 16:22:33

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-05-21 16:38:53

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-05-21 16:43:25

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-05-22 04:36:36

HTTP Redirects (curl)

Time of First Successful Submission: 2026-05-22 04:42:45

HTTP Redirects (python)

Time of First Successful Submission: 2026-05-22 04:45:28

HTTP Cookies (curl)

Time of First Successful Submission: 2026-05-22 04:58:41

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-05-22 05:05:25

HTTP Cookies (python)

Time of First Successful Submission: 2026-05-22 18:41:27

Server State (python)

Time of First Successful Submission: 2026-05-22 18:42:16

Listening Web

Time of First Successful Submission: 2026-05-22 18:45:39

Speaking Redirects

Time of First Successful Submission: 2026-05-22 18:54:21

JavaScript Redirects

Time of First Successful Submission: 2026-05-22 19:20:26

Including JavaScript

Time of First Successful Submission: 2026-05-26 02:56:08

HTTP (javascript)

Time of First Successful Submission: 2026-05-26 03:15:10

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-05-26 03:21:28

HTTP Forms (javascript)

Time of First Successful Submission: 2026-05-26 03:35:59

cat

Time of First Successful Submission: 2026-05-26 15:52:00

more

Time of First Successful Submission: 2026-05-26 15:52:38

less

Time of First Successful Submission: 2026-05-26 15:53:34

tail

Time of First Successful Submission: 2026-05-26 15:53:56

head

Time of First Successful Submission: 2026-05-26 15:54:18

sort

Time of First Successful Submission: 2026-05-26 15:54:49

vim

Time of First Successful Submission: 2026-05-26 15:55:23

emacs

Time of First Successful Submission: 2026-05-26 15:56:14

nano

Time of First Successful Submission: 2026-05-26 15:56:52

rev

Time of First Successful Submission: 2026-05-26 15:57:40

od

Time of First Successful Submission: 2026-05-26 16:01:25

hd

Time of First Successful Submission: 2026-05-26 16:02:20

xxd

Time of First Successful Submission: 2026-05-26 16:04:37

base32

Time of First Successful Submission: 2026-05-26 16:05:34

base64

Time of First Successful Submission: 2026-05-26 16:05:59

split

Time of First Successful Submission: 2026-05-26 16:11:30

gzip

Time of First Successful Submission: 2026-05-26 16:16:02

bzip2

Time of First Successful Submission: 2026-05-26 16:18:32

zip

Time of First Successful Submission: 2026-05-26 16:26:02

tar

Time of First Successful Submission: 2026-05-26 16:39:46

ar

Time of First Successful Submission: 2026-05-26 16:47:57

cpio

Time of First Successful Submission: 2026-05-26 18:45:02

genisoimage

Time of First Successful Submission: 2026-05-26 18:53:04

env

Time of First Successful Submission: 2026-05-26 18:56:31

find

Time of First Successful Submission: 2026-05-26 19:03:41

make

Time of First Successful Submission: 2026-05-26 19:35:26

nice

Time of First Successful Submission: 2026-05-26 19:37:39

timeout

Time of First Successful Submission: 2026-05-26 19:38:38

stdbuf

Time of First Successful Submission: 2026-05-26 19:40:22

setarch

Time of First Successful Submission: 2026-05-26 19:44:12

watch

Time of First Successful Submission: 2026-05-27 15:08:08

socat

Time of First Successful Submission: 2026-05-27 15:14:23

whiptail

Time of First Successful Submission: 2026-05-27 15:18:05

awk

Time of First Successful Submission: 2026-05-27 15:20:28

sed

Time of First Successful Submission: 2026-05-27 15:23:42

ed

Time of First Successful Submission: 2026-05-27 15:24:39

chown

Time of First Successful Submission: 2026-05-27 15:25:18

chmod

Time of First Successful Submission: 2026-05-27 15:25:50

cp

Time of First Successful Submission: 2026-05-27 15:28:20

mv

Time of First Successful Submission: 2026-05-27 15:54:06

perl

Time of First Successful Submission: 2026-05-27 16:04:29

python

Time of First Successful Submission: 2026-05-27 18:51:19

ruby

Time of First Successful Submission: 2026-05-27 18:53:08

bash

Time of First Successful Submission: 2026-05-27 18:58:15

date

Time of First Successful Submission: 2026-05-27 19:02:54

dmesg

Time of First Successful Submission: 2026-05-27 19:05:27

wc

Time of First Successful Submission: 2026-05-27 19:10:05

gcc

Time of First Successful Submission: 2026-05-27 19:19:22

as

Time of First Successful Submission: 2026-05-27 19:22:04

wget

Time of First Successful Submission: 2026-05-27 19:44:30

ssh-keygen

Time of First Successful Submission: 2026-05-27 23:31:16

SQL Queries

Time of First Successful Submission: 2026-05-27 23:46:43

Filtering SQL

Time of First Successful Submission: 2026-05-27 23:50:48

Choosing Columns

Time of First Successful Submission: 2026-05-27 23:51:41

Exclusionary Filtering

Time of First Successful Submission: 2026-05-27 23:54:00

Filtering Strings

Time of First Successful Submission: 2026-05-27 23:54:54

Filtering on Expressions

Time of First Successful Submission: 2026-05-27 23:57:44

SELECTing Expressions

Time of First Successful Submission: 2026-05-28 00:05:55

Composite Conditions

Time of First Successful Submission: 2026-05-28 00:10:37

Reaching Your LIMITs

Time of First Successful Submission: 2026-05-28 00:16:01

Querying Metadata

Time of First Successful Submission: 2026-05-28 00:18:28


DSU Cyber Camps

11 / 104 9997 / 47623


Using the Terminal

Time of First Successful Submission: 2026-04-22 05:28:14

Using the VSCode Workspace

Time of First Successful Submission: 2026-04-22 05:31:09

Using the GUI Desktop

Time of First Successful Submission: 2026-04-22 05:40:14

Pasting into the Desktop

Time of First Successful Submission: 2026-04-22 05:42:04

Connecting over SSH

Time of First Successful Submission: 2026-04-22 05:44:27

Restarting Challenges

Time of First Successful Submission: 2026-04-22 05:52:01

Challenge Programs

Time of First Successful Submission: 2026-04-22 06:02:15

The Flag File

Time of First Successful Submission: 2026-04-22 06:04:13

Using Privileged Mode

Time of First Successful Submission: 2026-04-22 06:14:27

Persistent Home Directories - One

Time of First Successful Submission: 2026-04-22 06:18:02

Persistent Home Directories - Two

Time of First Successful Submission: 2026-04-22 06:18:50


GCA CTF

11 / 104 9998 / 47623


Using the Terminal

Time of First Successful Submission: 2026-04-22 05:28:14

Using the VSCode Workspace

Time of First Successful Submission: 2026-04-22 05:31:09

Using the GUI Desktop

Time of First Successful Submission: 2026-04-22 05:40:14

Pasting into the Desktop

Time of First Successful Submission: 2026-04-22 05:42:04

Connecting over SSH

Time of First Successful Submission: 2026-04-22 05:44:27

Restarting Challenges

Time of First Successful Submission: 2026-04-22 05:52:01

Challenge Programs

Time of First Successful Submission: 2026-04-22 06:02:15

The Flag File

Time of First Successful Submission: 2026-04-22 06:04:13

Using Privileged Mode

Time of First Successful Submission: 2026-04-22 06:14:27

Persistent Home Directories - One

Time of First Successful Submission: 2026-04-22 06:18:02

Persistent Home Directories - Two

Time of First Successful Submission: 2026-04-22 06:18:50