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Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-01-12 21:31:13

Command Arguments

Time of First Successful Submission: 2026-01-12 21:32:14

Command History

Time of First Successful Submission: 2026-01-12 21:32:57

The Root Path

Time of First Successful Submission: 2026-01-12 21:34:21

Absolute Paths

Time of First Successful Submission: 2026-01-12 21:35:04

Changing position

Time of First Successful Submission: 2026-01-13 04:27:39

Changing to an Absolute Path

Time of First Successful Submission: 2026-01-13 04:32:33

Relative Paths

Time of First Successful Submission: 2026-01-13 04:34:25

Cat

Time of First Successful Submission: 2026-01-13 05:01:32

Ls

Time of First Successful Submission: 2026-01-14 02:18:19

Ls All

Time of First Successful Submission: 2026-01-14 02:30:13

Find

Time of First Successful Submission: 2026-01-14 02:48:22

Piping Echo

Time of First Successful Submission: 2026-01-14 03:31:37

Piping Stdout

Time of First Successful Submission: 2026-01-14 03:34:21

Piping Stdin

Time of First Successful Submission: 2026-01-14 03:44:17


Intro to Cybersecurity

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Path Traversal 1

Time of First Successful Submission: 2026-01-12 22:11:03

Path Traversal 2

Time of First Successful Submission: 2026-02-04 05:01:20

CMDi 1

Time of First Successful Submission: 2026-02-04 05:09:33

CMDi 2

Time of First Successful Submission: 2026-02-04 05:15:52

CMDi 3

Time of First Successful Submission: 2026-02-04 05:21:04

CMDi 4

Time of First Successful Submission: 2026-02-04 05:24:49

CMDi 5

Time of First Successful Submission: 2026-02-04 05:29:32

Authentication Bypass 1

Time of First Successful Submission: 2026-02-05 00:19:43

Authentication Bypass 2

Time of First Successful Submission: 2026-02-05 00:25:24

SQLi 1

Time of First Successful Submission: 2026-02-05 00:32:06

SQLi 2

Time of First Successful Submission: 2026-02-05 00:39:55

SQLi 3

Time of First Successful Submission: 2026-02-05 00:44:29

SQLi 4

Time of First Successful Submission: 2026-02-05 00:53:35

SQLi 5

Time of First Successful Submission: 2026-02-05 01:02:21

XSS 1

Time of First Successful Submission: 2026-02-05 04:44:52

XSS 2

Time of First Successful Submission: 2026-02-05 04:50:16

XSS 3

Time of First Successful Submission: 2026-02-05 04:57:33

XSS 4

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

XSS 5

Time of First Successful Submission: 2026-02-05 05:10:40

XSS 6

Time of First Successful Submission: 2026-02-05 05:19:13

XSS 7

Time of First Successful Submission: 2026-02-05 05:51:21

CSRF 1

Time of First Successful Submission: 2026-02-05 16:37:00

CSRF 2

Time of First Successful Submission: 2026-02-05 16:45:32

CSRF 3

Time of First Successful Submission: 2026-02-05 16:58:21

CSRF 4

Time of First Successful Submission: 2026-02-05 17:08:57

CSRF 5

Time of First Successful Submission: 2026-02-05 17:23:36

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2026-03-05 04:42:35

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2026-03-05 04:46:41

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2026-03-05 04:48:45

Reading Endianness (Python)

Time of First Successful Submission: 2026-03-05 04:52:23

Reading Endianness (C)

Time of First Successful Submission: 2026-03-05 04:54:18

Reading Endianness (x86)

Time of First Successful Submission: 2026-03-05 04:56:43

Version Information (Python)

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

Version Information (C)

Time of First Successful Submission: 2026-03-05 05:10:01

Version Information (x86)

Time of First Successful Submission: 2026-03-05 05:16:34

Metadata and Data (Python)

Time of First Successful Submission: 2026-03-06 00:28:36

Metadata and Data (C)

Time of First Successful Submission: 2026-03-06 00:44:11

Metadata and Data (x86)

Time of First Successful Submission: 2026-03-06 00:45:59

Input Restrictions (Python)

Time of First Successful Submission: 2026-03-06 00:52:13

Input Restrictions (C)

Time of First Successful Submission: 2026-03-06 00:56:18

Input Restrictions (x86)

Time of First Successful Submission: 2026-03-06 01:01:46

Behold the cIMG! (Python)

Time of First Successful Submission: 2026-03-06 01:12:41

Behold the cIMG! (C)

Time of First Successful Submission: 2026-03-06 01:25:21

Behold the cIMG! (x86)

Time of First Successful Submission: 2026-03-06 01:32:43

A Basic cIMG (Python)

Time of First Successful Submission: 2026-03-06 01:36:52

A Basic cIMG (C)

Time of First Successful Submission: 2026-03-06 01:40:33

A Basic cIMG (x86)

Time of First Successful Submission: 2026-03-06 01:42:16

Internal State Mini (C)

Time of First Successful Submission: 2026-03-10 03:46:22

Internal State Mini (x86)

Time of First Successful Submission: 2026-03-10 04:08:13

Internal State (C)

Time of First Successful Submission: 2026-03-10 16:16:38

Internal State (x86)

Time of First Successful Submission: 2026-03-10 16:27:51

File Formats: Directives (C)

Time of First Successful Submission: 2026-03-10 16:48:56

File Formats: Directives (x86)

Time of First Successful Submission: 2026-03-10 17:05:22

The Patch Directive

Time of First Successful Submission: 2026-03-11 04:09:34

Optimizing for Space

Time of First Successful Submission: 2026-03-13 19:31:08

Tweaking Images

Time of First Successful Submission: 2026-03-14 04:50:35

Storage and Retrieval

Time of First Successful Submission: 2026-03-17 06:01:49

Extracting Knowledge

Time of First Successful Submission: 2026-03-17 16:31:08

Advanced Sprites

Time of First Successful Submission: 2026-03-17 16:57:50

Accessing Resources

Time of First Successful Submission: 2026-03-18 04:13:19

Unsafe Animations

Time of First Successful Submission: 2026-03-18 04:41:23

Animations

Time of First Successful Submission: 2026-03-18 05:24:06

Interoperability: Patching Data

Time of First Successful Submission: 2026-03-19 00:00:04

Patching Code

Time of First Successful Submission: 2026-03-19 05:47:30

Patching Control Flow

Time of First Successful Submission: 2026-03-19 22:05:31

Your First Overflow (easy)

Time of First Successful Submission: 2026-04-01 04:19:18

Your First Overflow (hard)

Time of First Successful Submission: 2026-04-01 04:27:36

Precision (easy)

Time of First Successful Submission: 2026-04-01 04:31:55

Precision (hard)

Time of First Successful Submission: 2026-04-01 04:35:07

Variable Control (easy)

Time of First Successful Submission: 2026-04-01 04:38:09

Variable Control (hard)

Time of First Successful Submission: 2026-04-01 04:41:11

Control Hijack (easy)

Time of First Successful Submission: 2026-04-01 04:45:06

Control Hijack (hard)

Time of First Successful Submission: 2026-04-01 04:51:14

Tricky Control Hijack (easy)

Time of First Successful Submission: 2026-04-01 04:54:50

Tricky Control Hijack (hard)

Time of First Successful Submission: 2026-04-01 04:57:56

PIEs (easy)

Time of First Successful Submission: 2026-04-03 03:11:13

PIEs (hard)

Time of First Successful Submission: 2026-04-03 03:27:53

String Lengths (easy)

Time of First Successful Submission: 2026-04-03 03:36:15

String Lengths (hard)

Time of First Successful Submission: 2026-04-03 03:38:08

Basic Shellcode

Time of First Successful Submission: 2026-04-03 03:41:01

NOP Sleds

Time of First Successful Submission: 2026-04-03 03:42:44

NULL-Free Shellcode

Time of First Successful Submission: 2026-04-03 03:46:38

Hijack to (Mapped) Shellcode (easy)

Time of First Successful Submission: 2026-04-03 03:50:52

Hijack to (Mapped) Shellcode (hard)

Time of First Successful Submission: 2026-04-03 03:54:24

Hijack to Shellcode (easy)

Time of First Successful Submission: 2026-04-03 03:58:11

Hijack to Shellcode (hard)

Time of First Successful Submission: 2026-04-03 04:01:47


Start Here

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Using the Terminal

Time of First Successful Submission: 2026-01-12 21:22:11

Using the VSCode Workspace

Time of First Successful Submission: 2026-01-12 21:23:11

Using the GUI Desktop

Time of First Successful Submission: 2026-01-12 21:24:50

Pasting into the Desktop

Time of First Successful Submission: 2026-01-12 21:26:19

Restarting Challenges

Time of First Successful Submission: 2026-01-12 21:29:40

Challenge Programs

Time of First Successful Submission: 2026-01-12 21:35:51

The Flag File

Time of First Successful Submission: 2026-01-12 21:36:37

Using Privileged Mode

Time of First Successful Submission: 2026-01-12 21:45:32

Persistent Home Directories - One

Time of First Successful Submission: 2026-01-12 21:50:34

Persistent Home Directories - Two

Time of First Successful Submission: 2026-01-12 21:51:11


Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2026-01-12 21:31:13

Intro to Arguments

Time of First Successful Submission: 2026-01-12 21:32:14

Command History

Time of First Successful Submission: 2026-01-12 21:32:57

The Root

Time of First Successful Submission: 2026-01-12 21:34:21

Program and absolute paths

Time of First Successful Submission: 2026-01-12 21:35:04

Position thy self

Time of First Successful Submission: 2026-01-13 04:27:39

Position elsewhere

Time of First Successful Submission: 2026-01-13 04:32:33

implicit relative paths, from /

Time of First Successful Submission: 2026-01-13 04:34:25

explicit relative paths, from /

Time of First Successful Submission: 2026-01-13 04:36:28

implicit relative path

Time of First Successful Submission: 2026-01-13 04:37:33

home sweet home

Time of First Successful Submission: 2026-01-13 04:39:27

cat: not the pet, but the command!

Time of First Successful Submission: 2026-01-13 05:01:32

catting absolute paths

Time of First Successful Submission: 2026-01-14 02:06:23

more catting practice

Time of First Successful Submission: 2026-01-14 02:11:20

grepping for a needle in a haystack

Time of First Successful Submission: 2026-01-14 02:13:20

comparing files

Time of First Successful Submission: 2026-01-14 02:15:51

listing files

Time of First Successful Submission: 2026-01-14 02:18:19

touching files

Time of First Successful Submission: 2026-01-14 02:23:27

removing files

Time of First Successful Submission: 2026-01-14 02:25:03

moving files

Time of First Successful Submission: 2026-01-14 02:26:21

copying files

Time of First Successful Submission: 2026-01-14 02:27:06

hidden files

Time of First Successful Submission: 2026-01-14 02:30:13

An Epic Filesystem Quest

Time of First Successful Submission: 2026-01-14 02:43:38

making directories

Time of First Successful Submission: 2026-01-14 02:45:20

finding files

Time of First Successful Submission: 2026-01-14 02:48:22

linking files

Time of First Successful Submission: 2026-01-14 03:01:40

Learning From Documentation

Time of First Successful Submission: 2026-01-14 04:30:21

Learning Complex Usage

Time of First Successful Submission: 2026-01-14 04:35:00

Reading Manuals

Time of First Successful Submission: 2026-01-14 04:36:20

Searching Manuals

Time of First Successful Submission: 2026-01-14 04:39:50

Searching For Manuals

Time of First Successful Submission: 2026-01-14 04:42:23

Helpful Programs

Time of First Successful Submission: 2026-01-14 04:44:16

Help for Builtins

Time of First Successful Submission: 2026-01-14 04:45:51

Matching with *

Time of First Successful Submission: 2026-01-14 03:04:42

Matching with ?

Time of First Successful Submission: 2026-01-14 03:09:02

Matching with []

Time of First Successful Submission: 2026-01-14 03:11:53

Matching paths with []

Time of First Successful Submission: 2026-01-14 03:13:25

Multiple globs

Time of First Successful Submission: 2026-01-14 03:18:09

Mixing globs

Time of First Successful Submission: 2026-01-14 03:22:35

Exclusionary globbing

Time of First Successful Submission: 2026-01-14 03:23:43

Tab completion

Time of First Successful Submission: 2026-01-14 03:26:51

Multiple options for tab completion

Time of First Successful Submission: 2026-01-14 03:29:10

Tab completion on commands

Time of First Successful Submission: 2026-01-14 03:29:54

Redirecting output

Time of First Successful Submission: 2026-01-14 03:31:37

Redirecting more output

Time of First Successful Submission: 2026-01-14 03:34:21

Appending output

Time of First Successful Submission: 2026-01-14 03:40:50

Redirecting errors

Time of First Successful Submission: 2026-01-14 03:43:00

Redirecting input

Time of First Successful Submission: 2026-01-14 03:44:17

Grepping stored results

Time of First Successful Submission: 2026-01-14 03:45:39

Grepping live output

Time of First Successful Submission: 2026-01-14 03:46:39

Grepping errors

Time of First Successful Submission: 2026-01-14 03:48:26

Filtering with grep -v

Time of First Successful Submission: 2026-01-14 03:53:39

Filtering with sed

Time of First Successful Submission: 2026-01-14 04:01:37

Duplicating piped data with tee

Time of First Successful Submission: 2026-01-14 04:07:43

Process substitution for input

Time of First Successful Submission: 2026-01-14 04:12:07

Writing to multiple programs

Time of First Successful Submission: 2026-01-14 04:15:40

Split-piping stderr and stdout

Time of First Successful Submission: 2026-01-14 04:17:17

Named pipes

Time of First Successful Submission: 2026-01-14 04:20:53

Printing Variables

Time of First Successful Submission: 2026-01-14 04:24:10

Setting Variables

Time of First Successful Submission: 2026-01-14 04:25:16

Multi-word Variables

Time of First Successful Submission: 2026-01-14 04:26:39

Exporting Variables

Time of First Successful Submission: 2026-01-14 21:45:57

Printing Exported Variables

Time of First Successful Submission: 2026-01-14 21:47:24

Storing Command Output

Time of First Successful Submission: 2026-01-14 21:49:42

Reading Input

Time of First Successful Submission: 2026-01-14 21:51:18

Reading Files

Time of First Successful Submission: 2026-01-14 21:52:27

Translating characters

Time of First Successful Submission: 2026-01-14 21:56:31

Deleting characters

Time of First Successful Submission: 2026-01-14 21:57:18

Deleting newlines

Time of First Successful Submission: 2026-01-14 21:58:51

Extracting the first lines with head

Time of First Successful Submission: 2026-01-14 21:59:48

Extracting specific sections of text

Time of First Successful Submission: 2026-01-14 22:02:30

Sorting data

Time of First Successful Submission: 2026-01-14 22:03:34

Listing Processes

Time of First Successful Submission: 2026-01-14 22:06:39

Killing Processes

Time of First Successful Submission: 2026-01-14 22:09:17

Interrupting Processes

Time of First Successful Submission: 2026-01-14 22:10:08

Killing Misbehaving Processes

Time of First Successful Submission: 2026-01-14 22:14:41

Suspending Processes

Time of First Successful Submission: 2026-01-14 22:15:33

Resuming Processes

Time of First Successful Submission: 2026-01-14 22:16:40

Backgrounding Processes

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

Foregrounding Processes

Time of First Successful Submission: 2026-01-14 23:04:54

Starting Backgrounded Processes

Time of First Successful Submission: 2026-01-14 23:01:22

Process Exit Codes

Time of First Successful Submission: 2026-01-14 23:07:40

Becoming root with su

Time of First Successful Submission: 2026-01-14 23:11:55

Other users with su

Time of First Successful Submission: 2026-01-14 23:12:42

Cracking passwords

Time of First Successful Submission: 2026-01-14 23:17:36

Using sudo

Time of First Successful Submission: 2026-01-14 23:23:51

Changing File Ownership

Time of First Successful Submission: 2026-01-14 23:26:04

Groups and Files

Time of First Successful Submission: 2026-01-14 23:27:34

Fun With Groups Names

Time of First Successful Submission: 2026-01-14 23:35:11

Changing Permissions

Time of First Successful Submission: 2026-01-14 23:37:38

Executable Files

Time of First Successful Submission: 2026-01-14 23:39:06

Permission Tweaking Practice

Time of First Successful Submission: 2026-01-14 23:47:47

Permissions Setting Practice

Time of First Successful Submission: 2026-01-14 23:51:41

The SUID Bit

Time of First Successful Submission: 2026-01-14 23:53:12

Chaining with Semicolons

Time of First Successful Submission: 2026-01-15 04:02:35

Building on Success

Time of First Successful Submission: 2026-01-15 04:05:18

Handling Failure

Time of First Successful Submission: 2026-01-15 04:05:57

Your First Shell Script

Time of First Successful Submission: 2026-01-15 04:07:38

Redirecting Script Output

Time of First Successful Submission: 2026-01-15 04:09:20

Executable Shell Scripts

Time of First Successful Submission: 2026-01-15 04:12:46

Understanding Shebangs

Time of First Successful Submission: 2026-01-15 04:16:40

Scripting with Arguments

Time of First Successful Submission: 2026-01-15 04:18:47

Scripting with Conditionals

Time of First Successful Submission: 2026-01-15 04:23:26

Scripting with Default Cases

Time of First Successful Submission: 2026-01-15 04:24:29

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-01-15 04:27:04

Reading Shell Scripts

Time of First Successful Submission: 2026-01-15 04:28:40

Launching Screen

Time of First Successful Submission: 2026-01-15 04:31:01

Detaching and Attaching

Time of First Successful Submission: 2026-01-15 04:32:12

Finding Sessions

Time of First Successful Submission: 2026-01-15 04:33:22

Switching Windows

Time of First Successful Submission: 2026-01-15 04:36:55

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-01-15 04:37:48

Switching Windows (tmux)

Time of First Successful Submission: 2026-01-15 04:40:11

The PATH Variable

Time of First Successful Submission: 2026-01-15 04:41:35

Setting PATH

Time of First Successful Submission: 2026-01-15 04:43:37

Finding Commands

Time of First Successful Submission: 2026-01-15 04:44:24

Adding Commands

Time of First Successful Submission: 2026-01-15 04:47:34

Hijacking Commands

Time of First Successful Submission: 2026-01-15 04:56:46

Bashrc Backdoor

Time of First Successful Submission: 2026-01-15 04:59:21

Sniffing Input

Time of First Successful Submission: 2026-01-15 05:04:20

Overshared Directories

Time of First Successful Submission: 2026-01-15 05:10:30

Tricky Linking

Time of First Successful Submission: 2026-01-15 05:14:45

Sniffing Process Arguments

Time of First Successful Submission: 2026-01-15 05:23:11

Snooping on Configurations

Time of First Successful Submission: 2026-01-15 05:25:56

The Fork Bomb

Time of First Successful Submission: 2026-01-15 05:37:53

Disk-Space Doomsday

Time of First Successful Submission: 2026-01-15 05:41:28

rm -rf /

Time of First Successful Submission: 2026-01-15 05:47:40

Life after rm -rf /

Time of First Successful Submission: 2026-01-15 05:52:46

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-01-15 06:00:24


Computing 101

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Your First Register

Time of First Successful Submission: 2026-02-20 04:24:32

Your First Syscall

Time of First Successful Submission: 2026-02-20 04:27:20

Exit Codes

Time of First Successful Submission: 2026-02-20 04:32:02

Building Executables

Time of First Successful Submission: 2026-02-20 04:35:29

Moving Between Registers

Time of First Successful Submission: 2026-02-20 04:38:40

Loading From Memory

Time of First Successful Submission: 2026-02-20 04:48:16

More Loading Practice

Time of First Successful Submission: 2026-02-20 04:49:23

Dereferencing Pointers

Time of First Successful Submission: 2026-02-20 04:51:20

Dereferencing Yourself

Time of First Successful Submission: 2026-02-20 04:55:09

Dereferencing with Offsets

Time of First Successful Submission: 2026-02-20 04:56:50

Stored Addresses

Time of First Successful Submission: 2026-02-20 04:59:51

Double Dereference

Time of First Successful Submission: 2026-02-20 05:01:55

The Stack

Time of First Successful Submission: 2026-02-20 05:04:42

Stack Offsets

Time of First Successful Submission: 2026-02-20 05:06:10

Program Arguments on the Stack

Time of First Successful Submission: 2026-02-20 05:07:57

Popping From the Stack

Time of First Successful Submission: 2026-02-20 05:11:01

Disassembling Programs

Time of First Successful Submission: 2026-02-20 18:13:42

Tracing Syscalls

Time of First Successful Submission: 2026-02-20 18:19:32

Starting GDB

Time of First Successful Submission: 2026-02-20 18:21:42

Quitting GDB

Time of First Successful Submission: 2026-02-20 18:22:24

Starting Programs in GDB

Time of First Successful Submission: 2026-02-20 18:25:46

Disassembling in GDB

Time of First Successful Submission: 2026-02-20 18:26:53

Stepping Through Instructions

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

Reading Register Values

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

Popping Stack Values

Time of First Successful Submission: 2026-02-20 18:35:06

Examining Memory

Time of First Successful Submission: 2026-02-20 18:38:25

Examining Stack Pointers

Time of First Successful Submission: 2026-02-20 18:45:12

Cooperative Debugging

Time of First Successful Submission: 2026-02-20 18:49:45

Writing Output

Time of First Successful Submission: 2026-02-21 05:55:58

Chaining Syscalls

Time of First Successful Submission: 2026-02-21 05:59:20

Writing Strings

Time of First Successful Submission: 2026-02-21 06:01:10

Reading Data

Time of First Successful Submission: 2026-02-21 06:05:09

Opening Files

Time of First Successful Submission: 2026-02-21 06:08:15

Hardcoding the Filename

Time of First Successful Submission: 2026-02-21 06:09:40

Comparing Values

Time of First Successful Submission: 2026-02-21 17:13:45

Comparing Characters

Time of First Successful Submission: 2026-02-21 17:16:35

Conditional Control Flow

Time of First Successful Submission: 2026-02-21 17:19:42

Comparing Strings

Time of First Successful Submission: 2026-02-21 17:24:26

Reverse the Password

Time of First Successful Submission: 2026-02-21 17:29:43

Conditionals Without Conditionals

Time of First Successful Submission: 2026-02-21 17:43:18

Looping

Time of First Successful Submission: 2026-02-21 17:50:20

Reverse the Calculation

Time of First Successful Submission: 2026-02-21 17:54:40

Reverse the Reverse

Time of First Successful Submission: 2026-02-21 17:56:38

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-02-21 17:57:38

Loops on Data

Time of First Successful Submission: 2026-02-21 18:01:55

set-register

Time of First Successful Submission: 2026-02-21 18:06:32

set-multiple-registers

Time of First Successful Submission: 2026-02-21 18:09:05

add-to-register

Time of First Successful Submission: 2026-02-24 00:09:31

linear-equation-registers

Time of First Successful Submission: 2026-02-24 00:11:12

integer-division

Time of First Successful Submission: 2026-02-24 00:16:59

modulo-operation

Time of First Successful Submission: 2026-02-24 00:20:34

set-upper-byte

Time of First Successful Submission: 2026-02-24 00:21:54

efficient-modulo

Time of First Successful Submission: 2026-02-24 00:23:13

byte-extraction

Time of First Successful Submission: 2026-02-24 00:28:33

bitwise-and

Time of First Successful Submission: 2026-02-24 00:31:11

check-even

Time of First Successful Submission: 2026-02-24 00:40:23

memory-read

Time of First Successful Submission: 2026-02-24 00:44:40

memory-write

Time of First Successful Submission: 2026-02-24 00:48:06

memory-increment

Time of First Successful Submission: 2026-02-24 00:52:51

byte-access

Time of First Successful Submission: 2026-02-24 00:55:19

memory-size-access

Time of First Successful Submission: 2026-02-24 04:35:28

little-endian-write

Time of First Successful Submission: 2026-02-24 04:38:19

memory-sum

Time of First Successful Submission: 2026-02-24 05:16:29

stack-subtraction

Time of First Successful Submission: 2026-02-24 05:18:25

swap-stack-values

Time of First Successful Submission: 2026-02-24 05:21:47

average-stack-values

Time of First Successful Submission: 2026-02-24 05:24:39

absolute-jump

Time of First Successful Submission: 2026-02-24 05:28:02

relative-jump

Time of First Successful Submission: 2026-02-24 05:29:54

jump-trampoline

Time of First Successful Submission: 2026-02-24 05:31:58

conditional-jump

Time of First Successful Submission: 2026-02-24 05:39:34

indirect-jump

Time of First Successful Submission: 2026-02-24 05:50:31

average-loop

Time of First Successful Submission: 2026-02-24 05:55:55

count-non-zero

Time of First Successful Submission: 2026-02-24 05:59:29

string-lower

Time of First Successful Submission: 2026-02-24 06:06:17

most-common-byte

Time of First Successful Submission: 2026-02-24 06:11:08

Exit

Time of First Successful Submission: 2026-02-26 03:04:12

Socket

Time of First Successful Submission: 2026-02-26 03:09:27

Bind

Time of First Successful Submission: 2026-02-26 03:17:44

Listen

Time of First Successful Submission: 2026-02-26 03:26:01

Accept

Time of First Successful Submission: 2026-02-26 03:30:36

Static Response

Time of First Successful Submission: 2026-02-26 03:45:35

Dynamic Response

Time of First Successful Submission: 2026-02-26 03:50:28

Iterative GET Server

Time of First Successful Submission: 2026-02-26 04:01:46

Concurrent GET Server

Time of First Successful Submission: 2026-02-26 04:10:01

Concurrent POST Server

Time of First Successful Submission: 2026-02-26 04:17:27

Web Server

Time of First Successful Submission: 2026-02-26 04:20:50

Debugging Programs

Time of First Successful Submission: 2026-02-25 04:41:07

Inspecting Registers

Time of First Successful Submission: 2026-02-25 04:54:35

Examining Memory

Time of First Successful Submission: 2026-02-25 05:02:18

Setting Breakpoints

Time of First Successful Submission: 2026-02-25 05:10:16

GDB Scripting

Time of First Successful Submission: 2026-02-25 18:01:57

Modifying Data

Time of First Successful Submission: 2026-02-25 18:21:59

Modifying Execution

Time of First Successful Submission: 2026-02-25 18:25:24

Broken Functions

Time of First Successful Submission: 2026-02-25 18:32:37


Playing With Programs

65 / 116 4173 / 23376


What's the password?

Time of First Successful Submission: 2026-01-21 04:53:01

... and again!

Time of First Successful Submission: 2026-01-21 04:54:10

Newline Troubles

Time of First Successful Submission: 2026-01-21 04:55:51

Reasoning about files

Time of First Successful Submission: 2026-01-21 04:57:24

Specifying Filenames

Time of First Successful Submission: 2026-01-21 05:02:44

Binary and Hex Encoding

Time of First Successful Submission: 2026-01-21 05:10:21

More Hex

Time of First Successful Submission: 2026-01-21 05:13:31

Decoding Hex

Time of First Successful Submission: 2026-01-21 05:18:55

Decoding Practice

Time of First Successful Submission: 2026-01-21 05:22:45

Encoding Practice

Time of First Successful Submission: 2026-01-21 05:25:44

Hex-encoding ASCII

Time of First Successful Submission: 2026-01-21 05:31:43

Nested Encoding

Time of First Successful Submission: 2026-01-21 05:38:09

Hex-encoding UTF-8

Time of First Successful Submission: 2026-01-21 05:43:42

UTF Mixups

Time of First Successful Submission: 2026-01-21 05:53:34

Modifying Encoded Data

Time of First Successful Submission: 2026-01-21 06:04:04

Decoding Base64

Time of First Successful Submission: 2026-01-21 06:15:11

Encoding Base64

Time of First Successful Submission: 2026-01-21 06:20:01

Dealing with Obfuscation

Time of First Successful Submission: 2026-01-21 06:26:19

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-01-21 06:37:55

Your First HTTP Request

Time of First Successful Submission: 2026-01-22 03:43:22

Reading Flask

Time of First Successful Submission: 2026-01-22 03:45:53

Commented Data

Time of First Successful Submission: 2026-01-22 03:48:54

HTTP Metadata

Time of First Successful Submission: 2026-01-22 03:51:45

HTTP (netcat)

Time of First Successful Submission: 2026-01-22 04:06:10

HTTP Paths (netcat)

Time of First Successful Submission: 2026-01-22 04:11:55

HTTP (curl)

Time of First Successful Submission: 2026-01-22 04:14:52

HTTP (python)

Time of First Successful Submission: 2026-01-22 04:21:37

HTTP Host Header (python)

Time of First Successful Submission: 2026-01-22 04:27:38

HTTP Host Header (curl)

Time of First Successful Submission: 2026-01-22 04:30:56

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-01-22 04:36:59

URL Encoding (netcat)

Time of First Successful Submission: 2026-01-22 04:47:48

HTTP GET Parameters

Time of First Successful Submission: 2026-01-22 05:16:24

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-01-22 05:24:30

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-01-22 05:28:59

HTTP Forms

Time of First Successful Submission: 2026-01-22 05:34:11

HTTP Forms (curl)

Time of First Successful Submission: 2026-01-22 05:45:26

HTTP Forms (netcat)

Time of First Successful Submission: 2026-01-23 05:28:22

HTTP Forms (python)

Time of First Successful Submission: 2026-01-23 05:31:18

HTTP Forms Without Forms

Time of First Successful Submission: 2026-01-23 05:34:32

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-01-23 05:38:09

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-01-23 05:57:12

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-01-23 05:59:58

HTTP Redirects (curl)

Time of First Successful Submission: 2026-01-23 06:02:14

HTTP Redirects (python)

Time of First Successful Submission: 2026-01-23 06:04:38

HTTP Cookies (curl)

Time of First Successful Submission: 2026-01-23 06:08:13

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-01-23 06:10:51

HTTP Cookies (python)

Time of First Successful Submission: 2026-01-23 06:13:00

Server State (python)

Time of First Successful Submission: 2026-01-23 06:14:42

Listening Web

Time of First Successful Submission: 2026-01-23 18:09:14

Speaking Redirects

Time of First Successful Submission: 2026-01-23 18:22:11

JavaScript Redirects

Time of First Successful Submission: 2026-01-23 18:27:40

Including JavaScript

Time of First Successful Submission: 2026-01-24 04:20:41

HTTP (javascript)

Time of First Successful Submission: 2026-01-24 04:31:10

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-01-24 04:43:24

HTTP Forms (javascript)

Time of First Successful Submission: 2026-01-24 05:53:02

SQL Queries

Time of First Successful Submission: 2026-01-24 04:54:33

Filtering SQL

Time of First Successful Submission: 2026-01-24 04:58:31

Choosing Columns

Time of First Successful Submission: 2026-01-24 04:59:42

Exclusionary Filtering

Time of First Successful Submission: 2026-01-24 05:03:23

Filtering Strings

Time of First Successful Submission: 2026-01-24 05:06:23

Filtering on Expressions

Time of First Successful Submission: 2026-01-24 05:09:36

SELECTing Expressions

Time of First Successful Submission: 2026-01-24 05:19:04

Composite Conditions

Time of First Successful Submission: 2026-01-24 05:22:26

Reaching Your LIMITs

Time of First Successful Submission: 2026-01-24 05:41:15

Querying Metadata

Time of First Successful Submission: 2026-01-24 05:47:12


GCA CTF

10 / 104 19239 / 43594


Using the Terminal

Time of First Successful Submission: 2026-01-12 21:22:11

Using the VSCode Workspace

Time of First Successful Submission: 2026-01-12 21:23:11

Using the GUI Desktop

Time of First Successful Submission: 2026-01-12 21:24:50

Pasting into the Desktop

Time of First Successful Submission: 2026-01-12 21:26:19

Restarting Challenges

Time of First Successful Submission: 2026-01-12 21:29:40

Challenge Programs

Time of First Successful Submission: 2026-01-12 21:35:51

The Flag File

Time of First Successful Submission: 2026-01-12 21:36:37

Using Privileged Mode

Time of First Successful Submission: 2026-01-12 21:45:32

Persistent Home Directories - One

Time of First Successful Submission: 2026-01-12 21:50:34

Persistent Home Directories - Two

Time of First Successful Submission: 2026-01-12 21:51:11