JareBearInAChair

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Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-01-24 05:59:03

Command Arguments

Time of First Successful Submission: 2026-01-24 06:52:10

Command History

Time of First Successful Submission: 2026-01-24 08:00:46

The Root Path

Time of First Successful Submission: 2026-01-24 08:03:09

Absolute Paths

Time of First Successful Submission: 2026-01-24 08:06:26

Changing position

Time of First Successful Submission: 2026-01-24 08:19:01

Changing to an Absolute Path

Time of First Successful Submission: 2026-01-24 08:53:17

Relative Paths

Time of First Successful Submission: 2026-01-26 01:10:47

Cat

Time of First Successful Submission: 2026-01-26 08:11:38

Ls

Time of First Successful Submission: 2026-01-26 08:42:32

Ls All

Time of First Successful Submission: 2026-01-26 18:19:06

Find

Time of First Successful Submission: 2026-01-27 06:44:27

Piping Echo

Time of First Successful Submission: 2026-02-01 07:58:45

Piping Stdout

Time of First Successful Submission: 2026-02-01 08:00:10

Piping Stdin

Time of First Successful Submission: 2026-02-04 21:42:13


Intro to Cybersecurity

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Path Traversal 1

Time of First Successful Submission: 2026-04-14 01:59:40

Path Traversal 2

Time of First Successful Submission: 2026-04-14 02:15:39

CMDi 1

Time of First Successful Submission: 2026-04-14 02:19:32

CMDi 2

Time of First Successful Submission: 2026-04-14 02:22:34

CMDi 3

Time of First Successful Submission: 2026-04-14 02:27:50

CMDi 4

Time of First Successful Submission: 2026-04-14 02:31:08

CMDi 5

Time of First Successful Submission: 2026-04-19 21:53:28

Authentication Bypass 1

Time of First Successful Submission: 2026-04-19 21:57:43

Authentication Bypass 2

Time of First Successful Submission: 2026-04-19 22:01:49

SQLi 1

Time of First Successful Submission: 2026-04-19 22:10:25

SQLi 2

Time of First Successful Submission: 2026-04-19 22:14:04

SQLi 3

Time of First Successful Submission: 2026-04-19 22:16:37

SQLi 4

Time of First Successful Submission: 2026-04-19 22:22:00

SQLi 5

Time of First Successful Submission: 2026-04-19 22:41:06

XSS 1

Time of First Successful Submission: 2026-04-19 23:16:45

XSS 2

Time of First Successful Submission: 2026-04-20 00:16:11

XSS 3

Time of First Successful Submission: 2026-04-20 00:21:44

XSS 4

Time of First Successful Submission: 2026-04-20 00:25:13

XSS 5

Time of First Successful Submission: 2026-04-20 00:52:05

XSS 6

Time of First Successful Submission: 2026-04-20 01:42:37

XSS 7

Time of First Successful Submission: 2026-04-20 01:49:35

CSRF 1

Time of First Successful Submission: 2026-04-24 20:08:36

CSRF 2

Time of First Successful Submission: 2026-04-24 20:15:07

CSRF 3

Time of First Successful Submission: 2026-04-24 20:23:06

CSRF 4

Time of First Successful Submission: 2026-04-24 20:35:22

CSRF 5

Time of First Successful Submission: 2026-04-25 00:17:46

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2026-05-03 02:37:45

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2026-05-03 02:44:53

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2026-05-03 02:46:47

Reading Endianness (Python)

Time of First Successful Submission: 2026-05-03 02:50:43

Reading Endianness (C)

Time of First Successful Submission: 2026-05-03 02:55:13

Reading Endianness (x86)

Time of First Successful Submission: 2026-05-03 02:57:18

Version Information (Python)

Time of First Successful Submission: 2026-05-03 03:00:06

Version Information (C)

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

Version Information (x86)

Time of First Successful Submission: 2026-05-03 22:22:04

Metadata and Data (Python)

Time of First Successful Submission: 2026-05-03 22:29:19

Metadata and Data (C)

Time of First Successful Submission: 2026-05-03 22:40:41

Metadata and Data (x86)

Time of First Successful Submission: 2026-05-03 22:44:55

Input Restrictions (Python)

Time of First Successful Submission: 2026-05-03 23:19:34

Input Restrictions (C)

Time of First Successful Submission: 2026-05-03 23:24:17

Input Restrictions (x86)

Time of First Successful Submission: 2026-05-03 23:26:53

Behold the cIMG! (Python)

Time of First Successful Submission: 2026-05-03 23:29:35

Behold the cIMG! (C)

Time of First Successful Submission: 2026-05-03 23:33:06

Behold the cIMG! (x86)

Time of First Successful Submission: 2026-05-03 23:38:57

A Basic cIMG (Python)

Time of First Successful Submission: 2026-05-03 23:42:25

A Basic cIMG (C)

Time of First Successful Submission: 2026-05-04 00:09:04

A Basic cIMG (x86)

Time of First Successful Submission: 2026-05-04 00:11:31

Internal State Mini (C)

Time of First Successful Submission: 2026-05-04 00:28:42

Internal State Mini (x86)

Time of First Successful Submission: 2026-05-04 00:32:27

Internal State (C)

Time of First Successful Submission: 2026-05-04 00:36:50

Internal State (x86)

Time of First Successful Submission: 2026-05-04 00:40:53

File Formats: Directives (C)

Time of First Successful Submission: 2026-05-04 00:52:50

File Formats: Directives (x86)

Time of First Successful Submission: 2026-05-04 00:49:29

The Patch Directive

Time of First Successful Submission: 2026-05-04 01:00:34

Optimizing for Space

Time of First Successful Submission: 2026-05-04 02:39:03

Tweaking Images

Time of First Successful Submission: 2026-05-08 06:00:45

Storage and Retrieval

Time of First Successful Submission: 2026-05-10 01:40:23

Accessing Resources

Time of First Successful Submission: 2026-05-10 20:23:59

Unsafe Animations

Time of First Successful Submission: 2026-05-10 20:28:08

Animations

Time of First Successful Submission: 2026-05-10 20:38:07

Interoperability: Patching Data

Time of First Successful Submission: 2026-05-10 22:56:44

Patching Code

Time of First Successful Submission: 2026-05-11 04:06:08

Patching Control Flow

Time of First Successful Submission: 2026-05-11 04:26:30

Your First Overflow (easy)

Time of First Successful Submission: 2026-05-11 06:27:09

Your First Overflow (hard)

Time of First Successful Submission: 2026-05-11 06:30:05

Precision (easy)

Time of First Successful Submission: 2026-05-11 06:33:59

Precision (hard)

Time of First Successful Submission: 2026-05-11 06:37:17

Variable Control (easy)

Time of First Successful Submission: 2026-05-11 06:41:43

Variable Control (hard)

Time of First Successful Submission: 2026-05-11 06:46:43

Control Hijack (easy)

Time of First Successful Submission: 2026-05-11 06:51:22

Control Hijack (hard)

Time of First Successful Submission: 2026-05-11 06:54:40

Tricky Control Hijack (easy)

Time of First Successful Submission: 2026-05-11 07:01:01

Tricky Control Hijack (hard)

Time of First Successful Submission: 2026-05-11 07:04:05

PIEs (easy)

Time of First Successful Submission: 2026-05-11 07:10:52

PIEs (hard)

Time of First Successful Submission: 2026-05-11 07:15:09

String Lengths (easy)

Time of First Successful Submission: 2026-05-11 07:20:54

String Lengths (hard)

Time of First Successful Submission: 2026-05-11 07:24:11

Basic Shellcode

Time of First Successful Submission: 2026-05-11 07:31:28

NOP Sleds

Time of First Successful Submission: 2026-05-11 07:37:15

NULL-Free Shellcode

Time of First Successful Submission: 2026-05-11 08:00:04

Hijack to (Mapped) Shellcode (easy)

Time of First Successful Submission: 2026-05-11 08:18:13

Hijack to (Mapped) Shellcode (hard)

Time of First Successful Submission: 2026-05-11 08:21:59

Hijack to Shellcode (easy)

Time of First Successful Submission: 2026-05-11 08:34:03

Hijack to Shellcode (hard)

Time of First Successful Submission: 2026-05-11 18:32:02


Start Here

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Using the Terminal

Time of First Successful Submission: 2026-01-18 20:29:49

Using the VSCode Workspace

Time of First Successful Submission: 2026-01-18 20:32:24

Using the GUI Desktop

Time of First Successful Submission: 2026-01-18 20:38:20

Pasting into the Desktop

Time of First Successful Submission: 2026-01-23 20:42:10

Restarting Challenges

Time of First Successful Submission: 2026-01-23 20:48:19

Challenge Programs

Time of First Successful Submission: 2026-01-24 04:44:03


Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2026-01-24 05:59:03

Intro to Arguments

Time of First Successful Submission: 2026-01-24 06:52:10

Command History

Time of First Successful Submission: 2026-01-24 08:00:46

The Root

Time of First Successful Submission: 2026-01-24 08:03:09

Program and absolute paths

Time of First Successful Submission: 2026-01-24 08:06:26

Position thy self

Time of First Successful Submission: 2026-01-24 08:19:01

Position elsewhere

Time of First Successful Submission: 2026-01-24 08:53:17

implicit relative paths, from /

Time of First Successful Submission: 2026-01-26 01:10:47

explicit relative paths, from /

Time of First Successful Submission: 2026-01-26 02:42:13

implicit relative path

Time of First Successful Submission: 2026-01-26 03:36:04

home sweet home

Time of First Successful Submission: 2026-01-26 08:06:26

cat: not the pet, but the command!

Time of First Successful Submission: 2026-01-26 08:11:38

catting absolute paths

Time of First Successful Submission: 2026-01-26 08:15:20

more catting practice

Time of First Successful Submission: 2026-01-26 08:19:41

grepping for a needle in a haystack

Time of First Successful Submission: 2026-01-26 08:27:57

comparing files

Time of First Successful Submission: 2026-01-26 08:34:23

listing files

Time of First Successful Submission: 2026-01-26 08:42:32

touching files

Time of First Successful Submission: 2026-01-26 08:56:43

removing files

Time of First Successful Submission: 2026-01-26 08:59:15

moving files

Time of First Successful Submission: 2026-01-26 18:05:59

copying files

Time of First Successful Submission: 2026-01-26 18:08:51

hidden files

Time of First Successful Submission: 2026-01-26 18:19:06

making directories

Time of First Successful Submission: 2026-01-27 05:22:28

finding files

Time of First Successful Submission: 2026-01-27 06:44:27

linking files

Time of First Successful Submission: 2026-01-27 07:04:24

Learning From Documentation

Time of First Successful Submission: 2026-01-27 07:09:01

Learning Complex Usage

Time of First Successful Submission: 2026-01-27 07:11:14

Reading Manuals

Time of First Successful Submission: 2026-01-27 07:18:44

Searching Manuals

Time of First Successful Submission: 2026-01-27 07:27:33

Searching For Manuals

Time of First Successful Submission: 2026-02-01 06:43:01

Helpful Programs

Time of First Successful Submission: 2026-02-01 06:49:07

Help for Builtins

Time of First Successful Submission: 2026-02-01 07:02:51

Matching with *

Time of First Successful Submission: 2026-02-01 07:08:42

Matching with ?

Time of First Successful Submission: 2026-02-01 07:15:53

Matching with []

Time of First Successful Submission: 2026-02-01 07:18:11

Matching paths with []

Time of First Successful Submission: 2026-02-01 07:19:57

Multiple globs

Time of First Successful Submission: 2026-02-01 07:33:22

Mixing globs

Time of First Successful Submission: 2026-02-01 07:39:03

Exclusionary globbing

Time of First Successful Submission: 2026-02-01 07:41:56

Tab completion

Time of First Successful Submission: 2026-02-01 07:45:04

Multiple options for tab completion

Time of First Successful Submission: 2026-02-01 07:51:18

Tab completion on commands

Time of First Successful Submission: 2026-02-01 07:56:25

Redirecting output

Time of First Successful Submission: 2026-02-01 07:58:45

Redirecting more output

Time of First Successful Submission: 2026-02-01 08:00:10

Appending output

Time of First Successful Submission: 2026-02-01 08:02:33

Redirecting errors

Time of First Successful Submission: 2026-02-04 21:40:49

Redirecting input

Time of First Successful Submission: 2026-02-04 21:42:13

Grepping stored results

Time of First Successful Submission: 2026-02-04 21:44:59

Grepping live output

Time of First Successful Submission: 2026-02-04 21:47:11

Grepping errors

Time of First Successful Submission: 2026-02-04 21:48:43

Filtering with grep -v

Time of First Successful Submission: 2026-02-04 21:51:03

Filtering with sed

Time of First Successful Submission: 2026-02-04 21:53:37

Duplicating piped data with tee

Time of First Successful Submission: 2026-02-04 22:15:28

Process substitution for input

Time of First Successful Submission: 2026-02-04 22:17:14

Writing to multiple programs

Time of First Successful Submission: 2026-02-04 22:19:57

Split-piping stderr and stdout

Time of First Successful Submission: 2026-02-04 22:27:57

Named pipes

Time of First Successful Submission: 2026-02-04 22:29:47

Printing Variables

Time of First Successful Submission: 2026-02-05 02:13:26

Setting Variables

Time of First Successful Submission: 2026-02-05 02:15:58

Multi-word Variables

Time of First Successful Submission: 2026-02-05 02:17:38

Exporting Variables

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

Printing Exported Variables

Time of First Successful Submission: 2026-02-05 02:27:01

Storing Command Output

Time of First Successful Submission: 2026-02-05 02:28:41

Reading Input

Time of First Successful Submission: 2026-02-05 02:31:34

Reading Files

Time of First Successful Submission: 2026-02-05 02:37:18

Translating characters

Time of First Successful Submission: 2026-02-05 02:39:59

Deleting characters

Time of First Successful Submission: 2026-02-05 02:41:09

Deleting newlines

Time of First Successful Submission: 2026-02-05 02:42:26

Extracting the first lines with head

Time of First Successful Submission: 2026-02-05 02:43:38

Extracting specific sections of text

Time of First Successful Submission: 2026-02-05 02:45:17

Sorting data

Time of First Successful Submission: 2026-02-05 02:46:53

Listing Processes

Time of First Successful Submission: 2026-02-05 03:07:04

Killing Processes

Time of First Successful Submission: 2026-02-05 03:12:35

Interrupting Processes

Time of First Successful Submission: 2026-02-05 03:14:14

Killing Misbehaving Processes

Time of First Successful Submission: 2026-02-05 03:24:36

Suspending Processes

Time of First Successful Submission: 2026-02-05 03:26:17

Resuming Processes

Time of First Successful Submission: 2026-02-05 03:27:45

Backgrounding Processes

Time of First Successful Submission: 2026-02-05 03:32:37

Foregrounding Processes

Time of First Successful Submission: 2026-02-05 03:35:26

Starting Backgrounded Processes

Time of First Successful Submission: 2026-02-05 03:37:22

Process Exit Codes

Time of First Successful Submission: 2026-02-05 03:39:07

Becoming root with su

Time of First Successful Submission: 2026-02-05 03:42:03

Other users with su

Time of First Successful Submission: 2026-02-05 03:43:55

Cracking passwords

Time of First Successful Submission: 2026-02-05 03:49:08

Using sudo

Time of First Successful Submission: 2026-02-05 03:50:50

Changing File Ownership

Time of First Successful Submission: 2026-02-05 03:53:34

Groups and Files

Time of First Successful Submission: 2026-02-05 03:55:02

Fun With Groups Names

Time of First Successful Submission: 2026-02-05 03:57:09

Changing Permissions

Time of First Successful Submission: 2026-02-05 03:58:13

Executable Files

Time of First Successful Submission: 2026-02-05 03:59:14

Permission Tweaking Practice

Time of First Successful Submission: 2026-02-05 04:07:57

Permissions Setting Practice

Time of First Successful Submission: 2026-02-05 04:16:46

The SUID Bit

Time of First Successful Submission: 2026-02-05 04:20:27

Chaining with Semicolons

Time of First Successful Submission: 2026-02-05 04:21:35

Building on Success

Time of First Successful Submission: 2026-02-05 04:22:55

Handling Failure

Time of First Successful Submission: 2026-02-05 04:24:20

Your First Shell Script

Time of First Successful Submission: 2026-02-05 04:25:44

Redirecting Script Output

Time of First Successful Submission: 2026-02-05 04:27:02

Executable Shell Scripts

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

Understanding Shebangs

Time of First Successful Submission: 2026-02-05 04:30:20

Scripting with Arguments

Time of First Successful Submission: 2026-02-05 04:32:20

Scripting with Conditionals

Time of First Successful Submission: 2026-02-05 04:35:30

Scripting with Default Cases

Time of First Successful Submission: 2026-02-05 04:37:32

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-02-05 04:40:04

Reading Shell Scripts

Time of First Successful Submission: 2026-02-05 04:59:43

Launching Screen

Time of First Successful Submission: 2026-02-05 05:09:36

Detaching and Attaching

Time of First Successful Submission: 2026-02-05 05:22:56

Finding Sessions

Time of First Successful Submission: 2026-02-05 05:27:29

Switching Windows

Time of First Successful Submission: 2026-02-05 05:41:33

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-02-05 05:43:58

Switching Windows (tmux)

Time of First Successful Submission: 2026-02-05 05:49:42

The PATH Variable

Time of First Successful Submission: 2026-02-05 05:51:00

Setting PATH

Time of First Successful Submission: 2026-02-05 05:52:18

Finding Commands

Time of First Successful Submission: 2026-02-05 05:53:59

Adding Commands

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

Hijacking Commands

Time of First Successful Submission: 2026-02-05 05:58:49

Bashrc Backdoor

Time of First Successful Submission: 2026-02-05 06:04:04

Sniffing Input

Time of First Successful Submission: 2026-02-05 06:07:08

Overshared Directories

Time of First Successful Submission: 2026-02-05 06:10:54

Tricky Linking

Time of First Successful Submission: 2026-02-05 06:13:59

Sniffing Process Arguments

Time of First Successful Submission: 2026-02-05 06:18:03

Snooping on Configurations

Time of First Successful Submission: 2026-02-05 06:22:02

The Fork Bomb

Time of First Successful Submission: 2026-02-05 07:12:34

Disk-Space Doomsday

Time of First Successful Submission: 2026-02-05 06:38:04

rm -rf /

Time of First Successful Submission: 2026-02-05 06:42:10

Life after rm -rf /

Time of First Successful Submission: 2026-02-05 06:45:29

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-02-05 06:49:46


Computing 101

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Your First Register

Time of First Successful Submission: 2026-04-25 00:29:23

Your First Syscall

Time of First Successful Submission: 2026-04-25 00:32:24

Exit Codes

Time of First Successful Submission: 2026-04-25 00:39:16

Building Executables

Time of First Successful Submission: 2026-04-25 00:45:22

Moving Between Registers

Time of First Successful Submission: 2026-04-25 00:47:40

Loading From Memory

Time of First Successful Submission: 2026-04-25 01:13:22

More Loading Practice

Time of First Successful Submission: 2026-04-25 01:21:49

Dereferencing Pointers

Time of First Successful Submission: 2026-04-25 01:25:56

Dereferencing Yourself

Time of First Successful Submission: 2026-04-25 01:30:00

Dereferencing with Offsets

Time of First Successful Submission: 2026-04-25 01:36:36

Stored Addresses

Time of First Successful Submission: 2026-04-25 01:43:28

Double Dereference

Time of First Successful Submission: 2026-04-25 02:04:11

The Stack

Time of First Successful Submission: 2026-04-25 02:07:50

Stack Offsets

Time of First Successful Submission: 2026-04-25 02:17:56

Program Arguments on the Stack

Time of First Successful Submission: 2026-04-25 02:20:48

Popping From the Stack

Time of First Successful Submission: 2026-04-25 02:23:26

Disassembling Programs

Time of First Successful Submission: 2026-04-25 02:27:42

Tracing Syscalls

Time of First Successful Submission: 2026-04-25 02:32:50

Starting GDB

Time of First Successful Submission: 2026-04-25 02:39:57

Quitting GDB

Time of First Successful Submission: 2026-04-25 02:42:07

Starting Programs in GDB

Time of First Successful Submission: 2026-04-25 02:49:42

Disassembling in GDB

Time of First Successful Submission: 2026-04-25 02:58:07

Stepping Through Instructions

Time of First Successful Submission: 2026-04-25 03:01:15

Reading Register Values

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

Popping Stack Values

Time of First Successful Submission: 2026-04-25 03:17:24

Examining Memory

Time of First Successful Submission: 2026-04-25 03:20:58

Examining Stack Pointers

Time of First Successful Submission: 2026-04-25 03:25:50

Cooperative Debugging

Time of First Successful Submission: 2026-04-25 03:28:05

Writing Output

Time of First Successful Submission: 2026-04-25 03:36:06

Chaining Syscalls

Time of First Successful Submission: 2026-04-26 00:13:42

Writing Strings

Time of First Successful Submission: 2026-04-26 00:15:26

Reading Data

Time of First Successful Submission: 2026-04-26 00:17:10

Opening Files

Time of First Successful Submission: 2026-04-26 00:19:02

Hardcoding the Filename

Time of First Successful Submission: 2026-04-26 00:20:46

Comparing Values

Time of First Successful Submission: 2026-04-26 00:23:28

Comparing Characters

Time of First Successful Submission: 2026-04-26 00:26:25

Conditional Control Flow

Time of First Successful Submission: 2026-04-26 00:28:11

Comparing Strings

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

Reverse the Password

Time of First Successful Submission: 2026-04-26 00:31:22

Conditionals Without Conditionals

Time of First Successful Submission: 2026-04-26 01:11:26

Looping

Time of First Successful Submission: 2026-04-26 01:13:30

Reverse the Calculation

Time of First Successful Submission: 2026-04-26 05:14:50

Reverse the Reverse

Time of First Successful Submission: 2026-04-26 06:47:27

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-04-26 06:49:33

Loops on Data

Time of First Successful Submission: 2026-04-26 06:53:29

set-register

Time of First Successful Submission: 2026-04-26 06:57:31

set-multiple-registers

Time of First Successful Submission: 2026-04-26 06:59:13

add-to-register

Time of First Successful Submission: 2026-04-26 07:00:23

linear-equation-registers

Time of First Successful Submission: 2026-04-30 23:49:31

integer-division

Time of First Successful Submission: 2026-04-30 23:50:50

modulo-operation

Time of First Successful Submission: 2026-04-30 23:51:56

set-upper-byte

Time of First Successful Submission: 2026-04-30 23:54:44

efficient-modulo

Time of First Successful Submission: 2026-04-30 23:56:03

byte-extraction

Time of First Successful Submission: 2026-04-30 23:57:05

bitwise-and

Time of First Successful Submission: 2026-04-30 23:58:14

check-even

Time of First Successful Submission: 2026-04-30 23:59:37

memory-read

Time of First Successful Submission: 2026-05-01 00:01:19

memory-write

Time of First Successful Submission: 2026-05-01 00:02:25

memory-increment

Time of First Successful Submission: 2026-05-01 00:03:29

byte-access

Time of First Successful Submission: 2026-05-01 00:04:24

memory-size-access

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

little-endian-write

Time of First Successful Submission: 2026-05-01 00:06:39

memory-sum

Time of First Successful Submission: 2026-05-01 00:07:48

stack-subtraction

Time of First Successful Submission: 2026-05-01 00:08:57

swap-stack-values

Time of First Successful Submission: 2026-05-01 00:10:31

average-stack-values

Time of First Successful Submission: 2026-05-01 00:11:30

absolute-jump

Time of First Successful Submission: 2026-05-01 00:12:45

relative-jump

Time of First Successful Submission: 2026-05-01 00:15:27

jump-trampoline

Time of First Successful Submission: 2026-05-01 00:16:32

conditional-jump

Time of First Successful Submission: 2026-05-01 00:18:37

indirect-jump

Time of First Successful Submission: 2026-05-01 00:20:17

average-loop

Time of First Successful Submission: 2026-05-01 00:21:45

count-non-zero

Time of First Successful Submission: 2026-05-01 00:23:10

string-lower

Time of First Successful Submission: 2026-05-01 00:24:28

most-common-byte

Time of First Successful Submission: 2026-05-01 00:26:06

Exit

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

Socket

Time of First Successful Submission: 2026-05-02 05:30:07

Bind

Time of First Successful Submission: 2026-05-02 05:32:56

Listen

Time of First Successful Submission: 2026-05-02 05:36:25

Accept

Time of First Successful Submission: 2026-05-02 05:43:04

Static Response

Time of First Successful Submission: 2026-05-03 00:40:48

Dynamic Response

Time of First Successful Submission: 2026-05-03 00:44:25

Iterative GET Server

Time of First Successful Submission: 2026-05-03 01:34:53

Concurrent GET Server

Time of First Successful Submission: 2026-05-03 01:39:05

Concurrent POST Server

Time of First Successful Submission: 2026-05-03 01:55:42

Web Server

Time of First Successful Submission: 2026-05-03 02:28:36

Debugging Programs

Time of First Successful Submission: 2026-05-01 01:39:11

Inspecting Registers

Time of First Successful Submission: 2026-05-01 02:07:39

Examining Memory

Time of First Successful Submission: 2026-05-02 03:49:29

Setting Breakpoints

Time of First Successful Submission: 2026-05-02 04:27:01

GDB Scripting

Time of First Successful Submission: 2026-05-02 04:42:24

Modifying Data

Time of First Successful Submission: 2026-05-02 05:07:23

Modifying Execution

Time of First Successful Submission: 2026-05-02 05:14:04

Broken Functions

Time of First Successful Submission: 2026-05-02 05:20:28


Playing With Programs

65 / 116 4483 / 23768


What's the password?

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

... and again!

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

Newline Troubles

Time of First Successful Submission: 2026-02-07 07:39:49

Reasoning about files

Time of First Successful Submission: 2026-02-07 07:42:54

Specifying Filenames

Time of First Successful Submission: 2026-02-07 07:47:33

Binary and Hex Encoding

Time of First Successful Submission: 2026-02-07 07:50:18

More Hex

Time of First Successful Submission: 2026-02-07 07:52:50

Decoding Hex

Time of First Successful Submission: 2026-02-07 08:04:50

Decoding Practice

Time of First Successful Submission: 2026-02-07 08:06:32

Encoding Practice

Time of First Successful Submission: 2026-02-07 08:08:27

Hex-encoding ASCII

Time of First Successful Submission: 2026-02-07 08:10:34

Nested Encoding

Time of First Successful Submission: 2026-02-07 08:12:46

Hex-encoding UTF-8

Time of First Successful Submission: 2026-02-07 08:15:05

UTF Mixups

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

Modifying Encoded Data

Time of First Successful Submission: 2026-02-07 08:20:13

Decoding Base64

Time of First Successful Submission: 2026-02-07 08:21:58

Encoding Base64

Time of First Successful Submission: 2026-02-07 08:23:30

Dealing with Obfuscation

Time of First Successful Submission: 2026-02-07 08:25:04

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-02-07 08:27:12

Your First HTTP Request

Time of First Successful Submission: 2026-03-12 17:53:54

Reading Flask

Time of First Successful Submission: 2026-03-12 18:18:47

Commented Data

Time of First Successful Submission: 2026-03-12 18:23:37

HTTP Metadata

Time of First Successful Submission: 2026-03-12 18:43:10

HTTP (netcat)

Time of First Successful Submission: 2026-03-12 18:46:45

HTTP Paths (netcat)

Time of First Successful Submission: 2026-03-12 18:52:18

HTTP (curl)

Time of First Successful Submission: 2026-03-12 18:57:08

HTTP (python)

Time of First Successful Submission: 2026-03-16 18:09:17

HTTP Host Header (python)

Time of First Successful Submission: 2026-03-16 18:13:02

HTTP Host Header (curl)

Time of First Successful Submission: 2026-03-29 21:47:07

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-04-07 18:35:20

URL Encoding (netcat)

Time of First Successful Submission: 2026-04-07 18:42:15

HTTP GET Parameters

Time of First Successful Submission: 2026-04-07 18:46:47

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-04-07 18:50:12

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-04-07 18:52:58

HTTP Forms

Time of First Successful Submission: 2026-04-07 18:59:49

HTTP Forms (curl)

Time of First Successful Submission: 2026-04-07 19:09:40

HTTP Forms (netcat)

Time of First Successful Submission: 2026-04-07 21:06:56

HTTP Forms (python)

Time of First Successful Submission: 2026-04-07 21:33:38

HTTP Forms Without Forms

Time of First Successful Submission: 2026-04-07 22:46:06

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-04-07 22:56:31

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-04-07 23:02:45

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-04-07 23:15:32

HTTP Redirects (curl)

Time of First Successful Submission: 2026-04-07 23:18:46

HTTP Redirects (python)

Time of First Successful Submission: 2026-04-07 23:22:20

HTTP Cookies (curl)

Time of First Successful Submission: 2026-04-07 23:25:54

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-04-07 23:30:03

HTTP Cookies (python)

Time of First Successful Submission: 2026-04-07 23:59:35

Server State (python)

Time of First Successful Submission: 2026-04-08 00:26:35

Listening Web

Time of First Successful Submission: 2026-04-08 02:50:52

Speaking Redirects

Time of First Successful Submission: 2026-04-11 00:30:13

JavaScript Redirects

Time of First Successful Submission: 2026-04-08 06:42:46

Including JavaScript

Time of First Successful Submission: 2026-04-11 00:49:09

HTTP (javascript)

Time of First Successful Submission: 2026-04-11 00:55:03

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-04-11 00:57:44

HTTP Forms (javascript)

Time of First Successful Submission: 2026-04-11 01:00:50

SQL Queries

Time of First Successful Submission: 2026-04-11 01:05:04

Filtering SQL

Time of First Successful Submission: 2026-04-11 01:07:34

Choosing Columns

Time of First Successful Submission: 2026-04-11 01:09:33

Exclusionary Filtering

Time of First Successful Submission: 2026-04-11 01:12:15

Filtering Strings

Time of First Successful Submission: 2026-04-11 01:14:13

Filtering on Expressions

Time of First Successful Submission: 2026-04-11 01:17:52

SELECTing Expressions

Time of First Successful Submission: 2026-04-11 01:35:46

Composite Conditions

Time of First Successful Submission: 2026-04-11 01:39:38

Reaching Your LIMITs

Time of First Successful Submission: 2026-04-11 01:46:32

Querying Metadata

Time of First Successful Submission: 2026-04-11 01:53:31


GCA CTF

6 / 104 30189 / 45599


Using the Terminal

Time of First Successful Submission: 2026-01-18 20:29:49

Using the VSCode Workspace

Time of First Successful Submission: 2026-01-18 20:32:24

Using the GUI Desktop

Time of First Successful Submission: 2026-01-18 20:38:20

Pasting into the Desktop

Time of First Successful Submission: 2026-01-23 20:42:10

Restarting Challenges

Time of First Successful Submission: 2026-01-23 20:48:19

Challenge Programs

Time of First Successful Submission: 2026-01-24 04:44:03