ValeFever

🐧 💻

Intro to Programming Languages

232 / 234 14 / 31962


Lecture 1.1. Course Environment

Time of First Successful Submission: 2025-08-23 23:57:40

Lab 1.1 - Start Terminal

Time of First Successful Submission: 2025-08-24 15:49:40

Lecture 1.2. Linux Shells

Time of First Successful Submission: 2025-08-24 15:54:43

Lecture 1.3. Linux File System

Time of First Successful Submission: 2025-08-24 16:03:02

Lecture 1.4. Executing Programs

Time of First Successful Submission: 2025-08-24 16:07:51

Lecture 1.5. Common Commands

Time of First Successful Submission: 2025-08-24 16:18:08

Lab 1.5.2 - Using ls and cd

Time of First Successful Submission: 2025-08-24 16:37:36

Lab 1.5.3 - Using grep

Time of First Successful Submission: 2025-08-24 16:45:42

Lecture 1.6. Redirection of I/O

Time of First Successful Submission: 2025-08-24 16:50:36

Lab 1.6 - Using grep and pipe

Time of First Successful Submission: 2025-08-24 17:01:32

Lecture 1.7. Regular Expressions

Time of First Successful Submission: 2025-08-24 17:24:57

Lecture 1.8. Misc Linux

Time of First Successful Submission: 2025-08-24 17:47:50

Lecture 1.9. Testing Code on pwn.college

Time of First Successful Submission: 2025-08-24 17:50:36

Lab 1.9 - Test some If Statements

Time of First Successful Submission: 2025-08-24 20:18:24

P1.0 Level 1 Open /flag in VSCode

Time of First Successful Submission: 2025-08-26 15:55:02

Commands

Time of First Successful Submission: 2026-01-12 21:22:59

Command Arguments

Time of First Successful Submission: 2026-01-12 21:24:47

Command History

Time of First Successful Submission: 2026-01-12 21:25:19

The Root Path

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

Absolute Paths

Time of First Successful Submission: 2026-01-12 21:38:16

Changing position

Time of First Successful Submission: 2026-01-12 21:40:51

Changing to an Absolute Path

Time of First Successful Submission: 2026-01-12 21:47:12

Relative Paths

Time of First Successful Submission: 2026-01-12 21:44:40

P1.0 Level 5 read

Time of First Successful Submission: 2025-08-26 16:00:02

Cat

Time of First Successful Submission: 2026-01-12 21:56:43

Ls

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

Ls All

Time of First Successful Submission: 2026-01-12 22:07:30

P1.0 Level 2 list dir

Time of First Successful Submission: 2025-08-26 15:56:39

Find

Time of First Successful Submission: 2026-01-12 22:18:14

P1.0 Level 3 change dir

Time of First Successful Submission: 2025-08-26 15:57:31

P1.0 Level 4 move

Time of First Successful Submission: 2025-08-26 15:58:30

P1.0 Level 6 grep

Time of First Successful Submission: 2025-08-26 16:01:45

P1.0 Level 7 execute

Time of First Successful Submission: 2025-08-26 16:02:51

Piping Echo

Time of First Successful Submission: 2026-01-12 23:10:51

Piping Stdout

Time of First Successful Submission: 2026-01-12 23:11:43

Piping Stdin

Time of First Successful Submission: 2026-01-12 23:17:56

P1.0 Level 8 stdin

Time of First Successful Submission: 2025-08-26 16:04:29

P1.0 Level 9 pipe

Time of First Successful Submission: 2025-08-26 16:06:01

P1.0 Level 10 args

Time of First Successful Submission: 2025-08-27 19:55:12

P1.0 Level 11 gccpipe

Time of First Successful Submission: 2025-08-27 19:57:47

P1.0 Level 12 speedy

Time of First Successful Submission: 2025-08-27 20:02:15

P1.0 Level 13 testing

Time of First Successful Submission: 2025-08-27 20:06:07

P1.0 Level 14 ifs test

Time of First Successful Submission: 2025-08-27 20:08:31

Lecture 2.1.1.0 Paradigms and C

Time of First Successful Submission: 2025-08-31 23:30:40

Lecture 2.1.2. First C Program and Vars

Time of First Successful Submission: 2025-08-31 23:33:32

Lecture 2.1.2.1. Standard Output

Time of First Successful Submission: 2025-08-31 23:37:07

Lecture 2.1.2.2. Standard In

Time of First Successful Submission: 2025-08-31 23:41:06

Lab 2.1.2.1 - C Input

Time of First Successful Submission: 2025-09-01 00:03:02

Lecture 2.1.2.3. Flow Control & Command Line Arguments

Time of First Successful Submission: 2025-09-01 18:49:45

EzLab 2.1.2.3 - Control Flow

Time of First Successful Submission: 2025-09-01 18:55:16

Lecture 2.1.3.0 Dec & Def Functions

Time of First Successful Submission: 2025-09-01 18:58:54

Lecture 2.1.3.1. Globals & Locals

Time of First Successful Submission: 2025-09-01 19:03:27

Lecture 2.1.3.2. Function Params and Ret Vals

Time of First Successful Submission: 2025-09-01 19:06:03

EzLab 2.1.3.2 Pass by Value

Time of First Successful Submission: 2025-09-01 19:08:30

Lab 2.1.3.1 - Functions

Time of First Successful Submission: 2025-09-01 19:24:22

Lecture 2.1.4. Global and Local Memory

Time of First Successful Submission: 2025-09-01 19:29:04

Lecture 2.1.4.1. Function Frames

Time of First Successful Submission: 2025-09-01 19:31:56

Lecture 2.1.5. Debugging C Programs

Time of First Successful Submission: 2025-09-01 19:37:13

Lab 2.1.5.1 - Using VSCode Debugger

Time of First Successful Submission: 2025-09-01 19:56:07

P2.1 Level 01 C Force

Time of First Successful Submission: 2025-09-02 18:59:39

P2.1 Level 02 C Args

Time of First Successful Submission: 2025-09-03 03:30:45

P2.1 Level 03 scanf

Time of First Successful Submission: 2025-09-03 03:38:27

P2.1 Level 04 getchar

Time of First Successful Submission: 2025-09-03 03:47:20

P2.1 Level 05 add-n-sub

Time of First Successful Submission: 2025-09-03 04:05:56

P2.1 Level 06 debug me

Time of First Successful Submission: 2025-09-03 04:08:20

Lecture 2.2.1.1. C-Arrays

Time of First Successful Submission: 2025-09-05 16:19:12

Lecture 2.2.2. C-Strings

Time of First Successful Submission: 2025-09-05 16:23:14

Lab 2.2.2.0 - Print C-String by Character

Time of First Successful Submission: 2025-09-05 16:38:05

Lab 2.2.2.1 - Debugging with Seg Faults

Time of First Successful Submission: 2025-09-05 16:56:15

Lecture 2.2.3.1. Input to String

Time of First Successful Submission: 2025-09-05 17:00:05

Lecture 2.2.3.2 Using fgets

Time of First Successful Submission: 2025-09-05 17:04:42

Lecture 2.2.3.3. Input Buffer

Time of First Successful Submission: 2025-09-05 17:07:59

Lecture 2.2.4. File operations

Time of First Successful Submission: 2025-09-05 17:11:52

Lab 2.2.4.1 - LeeT CaSe

Time of First Successful Submission: 2025-09-05 19:14:39

Lecture 2.2.5.1. strlen

Time of First Successful Submission: 2025-09-05 19:16:55

EzLab 2.2.5.1 - String Length (strlen)

Time of First Successful Submission: 2025-09-05 19:18:17

Lecture 2.2.5.2. strcat

Time of First Successful Submission: 2025-09-05 19:40:01

EzLab 2.2.5.2 - String Concatenate (strcat)

Time of First Successful Submission: 2025-09-05 19:47:36

Lecture 2.2.5.3. strcmp

Time of First Successful Submission: 2025-09-05 19:49:30

EzLab 2.2.5.3 - String Compare (strcmp)

Time of First Successful Submission: 2025-09-05 19:50:41

Lecture 2.2.5.4. strcpy

Time of First Successful Submission: 2025-09-05 19:53:45

EzLab 2.2.5.4 - String Copy (strcpy/strncpy)

Time of First Successful Submission: 2025-09-05 19:58:08

Lecture 2.2.5.6. strspn

Time of First Successful Submission: 2025-09-05 20:01:34

Lab 2.2.5.6 - String Highlighter

Time of First Successful Submission: 2025-09-05 21:39:40

P2.2 Level 01 length

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

P2.2 Level 02 c-cat

Time of First Successful Submission: 2025-09-10 20:35:46

P2.2 Level 03 c-copy

Time of First Successful Submission: 2025-09-11 15:40:50

P2.2 Level 04 c-compare

Time of First Successful Submission: 2025-09-11 15:55:11

P2.2 Level 05 c-up

Time of First Successful Submission: 2025-09-11 18:32:42

P2.2 Level 06 c-bugs

Time of First Successful Submission: 2025-09-11 19:00:51

P2.2 Level 07 c-debugger

Time of First Successful Submission: 2025-09-11 19:02:23

P2.2 Level 08 c-debugger2

Time of First Successful Submission: 2025-09-11 19:04:15

P2.2 Level 09 c-grind

Time of First Successful Submission: 2025-09-11 22:04:16

Lecture 2.3.1. Stack pointers

Time of First Successful Submission: 2025-09-14 02:06:57

Lab 2.3.1.0 - Print Non-printable Chars

Time of First Successful Submission: 2025-09-14 02:28:54

Lecture 2.3.2.0 Examples Single Value

Time of First Successful Submission: 2025-09-14 02:41:16

Lecture 2.3.2.1. Examples of Ptr to Array

Time of First Successful Submission: 2025-09-14 02:48:31

EzLab 2.3.2.1 - Character Pointers

Time of First Successful Submission: 2025-09-14 02:49:34

EzLab 2.3.2.1 - C-String Pointers

Time of First Successful Submission: 2025-09-14 02:51:06

Lecture 2.3.3.1. strstr video

Time of First Successful Submission: 2025-09-14 02:53:01

EzLab 2.3.3.1 - Find str in str (strstr)

Time of First Successful Submission: 2025-09-14 02:58:50

Lab 2.3.3.1 - Find Word Count

Time of First Successful Submission: 2025-09-14 04:03:14

Lecture 2.3.3.2. strtok video

Time of First Successful Submission: 2025-09-14 04:08:43

EzLab 2.3.3.2 - Get tokens (strtok)

Time of First Successful Submission: 2025-09-14 04:11:59

Lab 2.3.3.2 - Word Count

Time of First Successful Submission: 2025-09-14 05:50:52

Lecture 2.3.3.3. strchr video

Time of First Successful Submission: 2025-09-14 15:59:34

Lecture 2.3.3.4. memset

Time of First Successful Submission: 2025-09-14 16:00:39

P2.3 Level 01 Pig Latin

Time of First Successful Submission: 2025-09-17 20:15:37

P2.3 Level 02 Pig Latin

Time of First Successful Submission: 2025-09-17 20:25:55

P2.3 Level 03 Pig Latin

Time of First Successful Submission: 2025-09-17 20:39:02

P2.3 Level 04 Pig Latin

Time of First Successful Submission: 2025-09-17 21:59:03

Lecture 2.4.1.1. struct into

Time of First Successful Submission: 2025-09-23 17:13:51

EzLab 2.4.1.1 - Using a struct

Time of First Successful Submission: 2025-09-23 17:16:08

Lecture 2.4.1.4. string to struct

Time of First Successful Submission: 2025-09-23 17:18:13

EzLab 2.4.1.4 - Struct from string

Time of First Successful Submission: 2025-09-23 17:21:44

Lecture 2.4.1.5. array of struct

Time of First Successful Submission: 2025-09-23 17:24:33

Lab 2.4.1.5 - Songs List

Time of First Successful Submission: 2025-09-23 18:23:08

Lecture 2.4.1.6. enum

Time of First Successful Submission: 2025-09-23 18:25:39

Lecture 2.4.2.1. C preprocessor

Time of First Successful Submission: 2025-09-23 18:29:26

EzLab 2.4.2.1 - C Preprocessor

Time of First Successful Submission: 2025-09-23 18:31:31

Lecture 2.4.2.2. Header files

Time of First Successful Submission: 2025-09-23 18:34:58

Lecture 2.4.2.6. Makefile

Time of First Successful Submission: 2025-09-23 18:39:17

EzLab 2.4.2.6 - Makefiles

Time of First Successful Submission: 2025-09-23 18:56:12

Lab 2.4.2.6 - Make Songs

Time of First Successful Submission: 2025-09-23 20:34:18

Lab 2.4.2.6 - Filter Songs

Time of First Successful Submission: 2025-09-24 04:50:34

Lecture 2.5.1.3. the heap

Time of First Successful Submission: 2025-09-26 01:46:00

Lecture 2.5.1.4. malloc an int

Time of First Successful Submission: 2025-09-26 01:48:16

Lecture 2.5.1.5. create a heap based array

Time of First Successful Submission: 2025-09-26 01:52:00

Lecture 2.5.1.6. free the heap

Time of First Successful Submission: 2025-09-26 01:53:24

EzLab 2.5.1.6 Heap

Time of First Successful Submission: 2025-09-26 02:00:30

Lab 2.5.1.6 - Stack on Heap

Time of First Successful Submission: 2025-09-26 02:14:21

Lecture 2.5.2.1. realloc

Time of First Successful Submission: 2025-09-26 02:16:22

Lecture 2.5.2.2. getline

Time of First Successful Submission: 2025-09-26 02:18:45

Lecture 2.5.2.3. strdup

Time of First Successful Submission: 2025-09-26 02:19:52

Lecture 2.5.2.4. struct malloc

Time of First Successful Submission: 2025-09-26 02:22:55

EzLab 2.5.2.4 Heap Based Array

Time of First Successful Submission: 2025-09-26 02:27:01

Lab 2.5.2.4 - Paging Songs

Time of First Successful Submission: 2025-09-26 02:47:37

P2.5 Level 01 Get Maxxed

Time of First Successful Submission: 2025-10-02 16:15:46

P2.5 Level 02 Load up those items

Time of First Successful Submission: 2025-10-02 16:40:13

P2.5 Level 03 Load the Rooms

Time of First Successful Submission: 2025-10-02 16:54:56

P2.5 Level 04 Free your mind

Time of First Successful Submission: 2025-10-02 17:04:10

P2.5 Level 05 Show me your room

Time of First Successful Submission: 2025-10-02 17:48:34

P2.5 Level 06 Moving Around

Time of First Successful Submission: 2025-10-02 17:56:22

P2.5 Level 07 Getting Items and Player's Inventory

Time of First Successful Submission: 2025-10-02 18:14:27

P2.5 Level 08 Dropping Items and Looking

Time of First Successful Submission: 2025-10-02 18:27:15

Lecture 2.6.1. Double Ptr Local

Time of First Successful Submission: 2025-10-06 05:05:15

Lecture 2.6.1.1. Double Ptr Heap

Time of First Successful Submission: 2025-10-06 05:09:06

Lecture 2.6.1.2. Triple Ptr Local

Time of First Successful Submission: 2025-10-06 05:15:26

Lecture 2.6.2.2. Pass-By-Address

Time of First Successful Submission: 2025-10-06 05:23:21

EzLab 2.6.2.2 Pass By Address

Time of First Successful Submission: 2025-10-06 05:28:38

Lecture 2.6.2.3. PBA - Double Ptrs

Time of First Successful Submission: 2025-10-06 19:20:01

Lecture 2.7.1.2. Array lists

Time of First Successful Submission: 2025-10-06 19:24:41

Lecture 2.7.1.3. Array lists insert and remove

Time of First Successful Submission: 2025-10-06 19:26:32

Lecture 2.7.2.0 Linked List

Time of First Successful Submission: 2025-10-06 19:29:47

Lecture 2.7.2.1. Linked List Insert at End

Time of First Successful Submission: 2025-10-06 19:40:48

Lecture 2.7.2.2. Linked List Insert at

Time of First Successful Submission: 2025-10-06 19:44:37

Lecture 2.7.2.3. Linked List Remove

Time of First Successful Submission: 2025-10-06 19:49:59

Lecture 2.7.2.4. Array list v. Linked List

Time of First Successful Submission: 2025-10-06 19:53:07

Lab 2.7.2.4a - Linked List Songs

Time of First Successful Submission: 2025-10-06 20:27:26

Lab 2.7.2.4b - LL Paging

Time of First Successful Submission: 2025-10-07 17:36:40

Lecture 3.1.1. OO Paradigm

Time of First Successful Submission: 2025-10-12 16:01:54

Lecture 3.1.2.1. Differences

Time of First Successful Submission: 2025-10-12 16:04:55

Lecture 3.1.2.2. Buffer and Files

Time of First Successful Submission: 2025-10-12 16:07:36

Lab 3.1.2.2 - Creating Objects from JSON

Time of First Successful Submission: 2025-10-12 17:44:45

Lecture 3.1.3. Classes

Time of First Successful Submission: 2025-10-12 17:52:38

EzLab 3.1.3.0 Classes & Objects

Time of First Successful Submission: 2025-10-12 18:08:46

Lecture 3.2.1. Inheritance introduction

Time of First Successful Submission: 2025-10-17 19:03:28

Lecture 3.2.2. Concrete Classes

Time of First Successful Submission: 2025-10-17 19:08:08

Lecture 3.2.2.1. Abstract Classes

Time of First Successful Submission: 2025-10-17 19:11:55

Lecture 3.2.2.2. Working with inherited classes

Time of First Successful Submission: 2025-10-17 19:16:46

EzLab 3.2.2.2 Inheritance

Time of First Successful Submission: 2025-10-17 19:28:22

Lecture 3.2.4. Header and c++ Files

Time of First Successful Submission: 2025-10-17 19:31:22

P3.2 Level 01 Get Data

Time of First Successful Submission: 2025-10-22 17:53:50

P3.2 Level 02 Create the Shop

Time of First Successful Submission: 2025-10-23 05:21:57

P3.2 Level 03 Shop Interface

Time of First Successful Submission: 2025-10-23 06:04:35

P3.2 Level 04 Buy

Time of First Successful Submission: 2025-10-23 17:45:52

P3.2 Level 05 Search

Time of First Successful Submission: 2025-10-23 18:22:05

P3.2 Level 06 Multi-store

Time of First Successful Submission: 2025-10-23 18:56:55

P3.2 Level 07 Search-Buy

Time of First Successful Submission: 2025-10-23 22:52:26

Lecture 3.3.1.2. Templated Types

Time of First Successful Submission: 2025-10-25 22:24:42

Lecture 3.3.2.1. STL Pairs and Vectors

Time of First Successful Submission: 2025-10-25 22:29:47

Lecture 3.3.2.2. STL Map

Time of First Successful Submission: 2025-10-25 22:32:57

Lecture 3.3.3. Smart Pointers

Time of First Successful Submission: 2025-10-25 22:37:45

Lecture 3.3.4.1. Pass by Reference

Time of First Successful Submission: 2025-10-25 22:40:23

Lecture 3.3.4.2. Operator Overloading

Time of First Successful Submission: 2025-10-25 22:43:31

Lecture 3.3.4.3. Friend keyword

Time of First Successful Submission: 2025-10-25 22:46:18

P3.3 Level 01 Integrate and Load

Time of First Successful Submission: 2025-11-06 01:53:04

P3.3 Level 02 Load Team

Time of First Successful Submission: 2025-11-06 04:18:45

P3.3 Level 03 Remove and Add

Time of First Successful Submission: 2025-11-06 05:24:55

P3.3 Level 04 Battle

Time of First Successful Submission: 2025-11-06 05:43:10

P3.3 Level 05 Challenge the Trainers

Time of First Successful Submission: 2025-11-06 05:48:26

EC 3.3 Level 01 Derek

Time of First Successful Submission: 2025-11-06 06:05:21

EC 3.3 Level 02 Sri

Time of First Successful Submission: 2025-11-06 17:10:07

EC 3.3 Level 03 Daniel10015

Time of First Successful Submission: 2025-11-06 17:22:55

EC 3.3 Level 04 Sayhilel

Time of First Successful Submission: 2025-11-06 17:32:06

EC 3.3 Level 05 Mai

Time of First Successful Submission: 2025-11-06 17:46:13

EC 3.3 Level 06 Memory Mastermind

Time of First Successful Submission: 2025-11-06 17:50:51

EC 3.3 Level 07 Jenna

Time of First Successful Submission: 2025-11-06 18:10:07

EC 3.3 Level 08 Prad

Time of First Successful Submission: 2025-11-06 18:14:11

EC 3.3 Level 09 Jared

Time of First Successful Submission: 2025-11-06 18:20:23

EC 3.3 Level 10 Sidharth

Time of First Successful Submission: 2025-11-06 18:24:57

EC 3.3 Level 11 Jay

Time of First Successful Submission: 2025-11-06 18:43:04

EC 3.3 Level 12 Tricky Mystic

Time of First Successful Submission: 2025-11-06 19:02:31

Lecture 3.4.1.0 BFS 1

Time of First Successful Submission: 2025-11-03 03:56:45

Lecture 3.4.1.1. BFS 2

Time of First Successful Submission: 2025-11-03 04:13:18

EzLab 3.4.1.1 BFS in a Matrix

Time of First Successful Submission: 2025-11-03 04:17:57

Lecture 3.4.2.0 Min Heap 1

Time of First Successful Submission: 2025-11-03 04:19:55

Lecture 3.4.2.1. Min Heap Insert

Time of First Successful Submission: 2025-11-03 04:21:48

Lecture 3.4.2.2. Min Heap Delete

Time of First Successful Submission: 2025-11-03 04:23:53

Lecture 3.4.2.3. Min Heap in Array

Time of First Successful Submission: 2025-11-03 04:25:28

Lecture 3.4.2.4. Min Heap in Arr Insert

Time of First Successful Submission: 2025-11-06 01:38:26

Lecture 4.1.1. Functional Programming Paradigm

Time of First Successful Submission: 2025-11-09 02:58:43

Lecture 4.1.1.2. Why Functional Language

Time of First Successful Submission: 2025-11-09 03:03:30

Lecture 4.1.2.1. Scheme Intro Part 1

Time of First Successful Submission: 2025-11-09 03:06:44

Lecture 4.1.2.2. Scheme Intro Part 2

Time of First Successful Submission: 2025-11-09 03:23:00

Lecture 4.1.2.3. Math Operations in Scheme

Time of First Successful Submission: 2025-11-09 03:25:01

Lecture 4.1.2.4. Predicates and Types

Time of First Successful Submission: 2025-11-09 03:35:13

Lecture 4.1.3.1. Conditionals

Time of First Successful Submission: 2025-11-09 03:40:18

Lab 4.1 - Hello

Time of First Successful Submission: 2025-11-09 03:42:15

Lecture 4.2.1.1. Functions

Time of First Successful Submission: 2025-11-16 16:41:27

Lab 4.2.1 - String Info

Time of First Successful Submission: 2025-11-16 16:50:49

Lecture 4.2.2. List Operations

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

Lecture 4.2.2.1. Recursion

Time of First Successful Submission: 2025-11-16 17:05:00

Lecture 4.2.3. Higher Order Functions

Time of First Successful Submission: 2025-11-16 17:08:04

Lab 4.2.2 - String Mangler

Time of First Successful Submission: 2025-11-16 17:14:03

Lab 4.2.3 - Damage Calculator

Time of First Successful Submission: 2025-11-16 17:25:18

P4.2 Level 01 String Info

Time of First Successful Submission: 2025-11-16 17:29:17

P4.2 Level 02 FF Attack Calc

Time of First Successful Submission: 2025-11-16 17:32:47

P4.2 Level 03 FF Base Dmg Calc

Time of First Successful Submission: 2025-11-16 17:36:46

P4.2 Level 04 Factorial 2.0

Time of First Successful Submission: 2025-11-16 17:41:38

P4.2 Level 05 Get Fourthy

Time of First Successful Submission: 2025-11-16 17:43:30

P4.2 Level 06 Filtering My Char Out

Time of First Successful Submission: 2025-11-16 18:50:36


Intro to Cybersecurity

86 / 183 2873 / 20031


Path Traversal 1

Time of First Successful Submission: 2026-02-02 22:31:02

Path Traversal 2

Time of First Successful Submission: 2026-02-02 23:49:10

CMDi 1

Time of First Successful Submission: 2026-02-02 23:15:59

CMDi 2

Time of First Successful Submission: 2026-02-02 23:19:17

CMDi 3

Time of First Successful Submission: 2026-02-02 23:21:39

CMDi 4

Time of First Successful Submission: 2026-02-02 23:23:34

CMDi 5

Time of First Successful Submission: 2026-02-02 23:38:01

Authentication Bypass 1

Time of First Successful Submission: 2026-02-03 00:04:55

Authentication Bypass 2

Time of First Successful Submission: 2026-02-03 00:09:09

SQLi 1

Time of First Successful Submission: 2026-02-03 15:44:49

SQLi 2

Time of First Successful Submission: 2026-02-03 15:47:27

SQLi 3

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

SQLi 4

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

SQLi 5

Time of First Successful Submission: 2026-02-04 04:39:08

XSS 1

Time of First Successful Submission: 2026-02-05 02:36:33

XSS 2

Time of First Successful Submission: 2026-02-05 02:39:33

XSS 3

Time of First Successful Submission: 2026-02-05 02:46:45

XSS 4

Time of First Successful Submission: 2026-02-05 02:52:49

XSS 5

Time of First Successful Submission: 2026-02-05 03:32:42

XSS 6

Time of First Successful Submission: 2026-02-05 03:41:13

XSS 7

Time of First Successful Submission: 2026-02-05 03:58:14

CSRF 1

Time of First Successful Submission: 2026-02-05 04:16:06

CSRF 2

Time of First Successful Submission: 2026-02-05 04:33:59

CSRF 3

Time of First Successful Submission: 2026-02-05 04:50:21

CSRF 4

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

CSRF 5

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

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2026-03-03 18:10:46

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2026-03-03 18:24:53

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2026-03-03 18:27:34

Reading Endianness (Python)

Time of First Successful Submission: 2026-03-03 18:31:56

Reading Endianness (C)

Time of First Successful Submission: 2026-03-03 18:34:56

Reading Endianness (x86)

Time of First Successful Submission: 2026-03-03 18:37:05

Version Information (Python)

Time of First Successful Submission: 2026-03-03 18:48:43

Version Information (C)

Time of First Successful Submission: 2026-03-03 19:13:34

Version Information (x86)

Time of First Successful Submission: 2026-03-03 19:15:48

Metadata and Data (Python)

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

Metadata and Data (C)

Time of First Successful Submission: 2026-03-03 19:33:48

Metadata and Data (x86)

Time of First Successful Submission: 2026-03-03 19:37:01

Input Restrictions (Python)

Time of First Successful Submission: 2026-03-03 19:40:18

Input Restrictions (C)

Time of First Successful Submission: 2026-03-03 19:43:23

Input Restrictions (x86)

Time of First Successful Submission: 2026-03-03 19:46:31

Behold the cIMG! (Python)

Time of First Successful Submission: 2026-03-03 19:52:03

Behold the cIMG! (C)

Time of First Successful Submission: 2026-03-03 19:56:31

Behold the cIMG! (x86)

Time of First Successful Submission: 2026-03-03 19:57:53

A Basic cIMG (Python)

Time of First Successful Submission: 2026-03-03 20:20:53

A Basic cIMG (C)

Time of First Successful Submission: 2026-03-03 20:27:36

A Basic cIMG (x86)

Time of First Successful Submission: 2026-03-03 20:29:39

Internal State Mini (C)

Time of First Successful Submission: 2026-03-05 19:25:52

Internal State Mini (x86)

Time of First Successful Submission: 2026-03-05 19:31:33

Internal State (C)

Time of First Successful Submission: 2026-03-05 20:35:37

Internal State (x86)

Time of First Successful Submission: 2026-03-05 20:42:02

File Formats: Directives (C)

Time of First Successful Submission: 2026-03-08 20:50:19

File Formats: Directives (x86)

Time of First Successful Submission: 2026-03-08 20:53:48

The Patch Directive

Time of First Successful Submission: 2026-03-09 04:21:02

Optimizing for Space

Time of First Successful Submission: 2026-03-09 04:51:15

Tweaking Images

Time of First Successful Submission: 2026-03-09 17:11:25

Storage and Retrieval

Time of First Successful Submission: 2026-03-09 21:19:38

Extracting Knowledge

Time of First Successful Submission: 2026-03-09 22:02:06

Advanced Sprites

Time of First Successful Submission: 2026-03-09 22:45:01

Accessing Resources

Time of First Successful Submission: 2026-03-10 01:32:43

Unsafe Animations

Time of First Successful Submission: 2026-03-10 02:09:18

Animations

Time of First Successful Submission: 2026-03-10 03:42:19

Interoperability: Patching Data

Time of First Successful Submission: 2026-03-10 03:59:04

Patching Code

Time of First Successful Submission: 2026-03-10 04:44:02

Patching Control Flow

Time of First Successful Submission: 2026-03-10 05:23:12

Your First Overflow (easy)

Time of First Successful Submission: 2026-03-25 04:10:23

Your First Overflow (hard)

Time of First Successful Submission: 2026-03-25 04:12:35

Precision (easy)

Time of First Successful Submission: 2026-03-25 04:14:37

Precision (hard)

Time of First Successful Submission: 2026-03-25 15:49:20

Variable Control (easy)

Time of First Successful Submission: 2026-03-25 16:18:01

Variable Control (hard)

Time of First Successful Submission: 2026-03-25 16:28:34

Control Hijack (easy)

Time of First Successful Submission: 2026-03-25 16:43:56

Control Hijack (hard)

Time of First Successful Submission: 2026-03-25 21:29:28

Tricky Control Hijack (easy)

Time of First Successful Submission: 2026-03-25 21:37:50

Tricky Control Hijack (hard)

Time of First Successful Submission: 2026-03-25 21:55:37

PIEs (easy)

Time of First Successful Submission: 2026-03-29 16:18:32

PIEs (hard)

Time of First Successful Submission: 2026-03-29 16:27:03

String Lengths (easy)

Time of First Successful Submission: 2026-03-29 16:37:39

String Lengths (hard)

Time of First Successful Submission: 2026-03-29 16:41:15

Basic Shellcode

Time of First Successful Submission: 2026-03-29 23:27:15

NOP Sleds

Time of First Successful Submission: 2026-03-29 23:33:30

NULL-Free Shellcode

Time of First Successful Submission: 2026-03-30 00:06:06

Hijack to (Mapped) Shellcode (easy)

Time of First Successful Submission: 2026-03-30 02:23:46

Hijack to (Mapped) Shellcode (hard)

Time of First Successful Submission: 2026-03-30 02:38:04

Hijack to Shellcode (easy)

Time of First Successful Submission: 2026-03-30 02:45:33

Hijack to Shellcode (hard)

Time of First Successful Submission: 2026-03-30 02:50:06


Start Here

5 / 12 32015 / 43317


Using the Terminal

Time of First Successful Submission: 2026-01-12 21:11:27

Using the VSCode Workspace

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

Using the GUI Desktop

Time of First Successful Submission: 2026-01-12 21:13:39

Pasting into the Desktop

Time of First Successful Submission: 2026-01-12 21:14:29

Restarting Challenges

Time of First Successful Submission: 2026-01-12 21:16:08


Linux Luminarium

128 / 128 1321 / 32370


Intro to Commands

Time of First Successful Submission: 2026-01-12 21:22:59

Intro to Arguments

Time of First Successful Submission: 2026-01-12 21:24:47

Command History

Time of First Successful Submission: 2026-01-12 21:25:19

The Root

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

Program and absolute paths

Time of First Successful Submission: 2026-01-12 21:38:16

Position thy self

Time of First Successful Submission: 2026-01-12 21:40:51

Position elsewhere

Time of First Successful Submission: 2026-01-12 21:47:12

implicit relative paths, from /

Time of First Successful Submission: 2026-01-12 21:44:40

explicit relative paths, from /

Time of First Successful Submission: 2026-01-12 21:46:05

implicit relative path

Time of First Successful Submission: 2026-01-12 21:49:22

home sweet home

Time of First Successful Submission: 2026-01-12 21:55:14

cat: not the pet, but the command!

Time of First Successful Submission: 2026-01-12 21:56:43

catting absolute paths

Time of First Successful Submission: 2026-01-12 21:57:09

more catting practice

Time of First Successful Submission: 2026-01-12 21:58:45

grepping for a needle in a haystack

Time of First Successful Submission: 2026-01-12 22:00:14

comparing files

Time of First Successful Submission: 2026-01-12 22:01:52

listing files

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

touching files

Time of First Successful Submission: 2026-01-12 22:03:54

removing files

Time of First Successful Submission: 2026-01-12 22:04:45

moving files

Time of First Successful Submission: 2026-01-12 22:05:42

copying files

Time of First Successful Submission: 2026-01-12 22:06:21

hidden files

Time of First Successful Submission: 2026-01-12 22:07:30

An Epic Filesystem Quest

Time of First Successful Submission: 2026-01-12 22:13:21

making directories

Time of First Successful Submission: 2026-01-12 22:14:30

finding files

Time of First Successful Submission: 2026-01-12 22:18:14

linking files

Time of First Successful Submission: 2026-01-12 22:29:08

Learning From Documentation

Time of First Successful Submission: 2026-01-12 22:30:22

Learning Complex Usage

Time of First Successful Submission: 2026-01-12 22:31:54

Reading Manuals

Time of First Successful Submission: 2026-01-12 22:34:16

Searching Manuals

Time of First Successful Submission: 2026-01-12 22:36:21

Searching For Manuals

Time of First Successful Submission: 2026-01-12 22:49:10

Helpful Programs

Time of First Successful Submission: 2026-01-12 22:40:30

Help for Builtins

Time of First Successful Submission: 2026-01-12 22:47:36

Matching with *

Time of First Successful Submission: 2026-01-12 22:51:25

Matching with ?

Time of First Successful Submission: 2026-01-12 22:52:48

Matching with []

Time of First Successful Submission: 2026-01-12 22:53:36

Matching paths with []

Time of First Successful Submission: 2026-01-12 22:54:56

Multiple globs

Time of First Successful Submission: 2026-01-12 22:56:25

Mixing globs

Time of First Successful Submission: 2026-01-12 23:02:00

Exclusionary globbing

Time of First Successful Submission: 2026-01-12 23:06:34

Tab completion

Time of First Successful Submission: 2026-01-12 23:07:16

Multiple options for tab completion

Time of First Successful Submission: 2026-01-12 23:08:58

Tab completion on commands

Time of First Successful Submission: 2026-01-12 23:09:38

Redirecting output

Time of First Successful Submission: 2026-01-12 23:10:51

Redirecting more output

Time of First Successful Submission: 2026-01-12 23:11:43

Appending output

Time of First Successful Submission: 2026-01-12 23:13:17

Redirecting errors

Time of First Successful Submission: 2026-01-12 23:14:45

Redirecting input

Time of First Successful Submission: 2026-01-12 23:17:56

Grepping stored results

Time of First Successful Submission: 2026-01-12 23:23:13

Grepping live output

Time of First Successful Submission: 2026-01-12 23:24:04

Grepping errors

Time of First Successful Submission: 2026-01-12 23:25:12

Filtering with grep -v

Time of First Successful Submission: 2026-01-12 23:26:11

Filtering with sed

Time of First Successful Submission: 2026-01-12 23:27:13

Duplicating piped data with tee

Time of First Successful Submission: 2026-01-12 23:31:40

Process substitution for input

Time of First Successful Submission: 2026-01-12 23:34:32

Writing to multiple programs

Time of First Successful Submission: 2026-01-12 23:39:04

Split-piping stderr and stdout

Time of First Successful Submission: 2026-01-12 23:40:38

Named pipes

Time of First Successful Submission: 2026-01-12 23:47:50

Printing Variables

Time of First Successful Submission: 2026-01-12 23:48:36

Setting Variables

Time of First Successful Submission: 2026-01-12 23:49:57

Multi-word Variables

Time of First Successful Submission: 2026-01-12 23:50:31

Exporting Variables

Time of First Successful Submission: 2026-01-12 23:52:21

Printing Exported Variables

Time of First Successful Submission: 2026-01-12 23:52:56

Storing Command Output

Time of First Successful Submission: 2026-01-12 23:54:42

Reading Input

Time of First Successful Submission: 2026-01-12 23:56:05

Reading Files

Time of First Successful Submission: 2026-01-12 23:59:30

Translating characters

Time of First Successful Submission: 2026-01-13 00:01:52

Deleting characters

Time of First Successful Submission: 2026-01-13 00:02:42

Deleting newlines

Time of First Successful Submission: 2026-01-13 00:03:56

Extracting the first lines with head

Time of First Successful Submission: 2026-01-13 00:05:14

Extracting specific sections of text

Time of First Successful Submission: 2026-01-13 00:07:13

Sorting data

Time of First Successful Submission: 2026-01-13 00:08:19

Listing Processes

Time of First Successful Submission: 2026-01-13 01:32:55

Killing Processes

Time of First Successful Submission: 2026-01-13 01:35:48

Interrupting Processes

Time of First Successful Submission: 2026-01-13 01:37:20

Killing Misbehaving Processes

Time of First Successful Submission: 2026-01-13 01:39:58

Suspending Processes

Time of First Successful Submission: 2026-01-13 01:40:55

Resuming Processes

Time of First Successful Submission: 2026-01-13 01:43:28

Backgrounding Processes

Time of First Successful Submission: 2026-01-13 01:46:01

Foregrounding Processes

Time of First Successful Submission: 2026-01-15 15:36:21

Starting Backgrounded Processes

Time of First Successful Submission: 2026-01-13 02:14:52

Process Exit Codes

Time of First Successful Submission: 2026-01-13 02:19:58

Becoming root with su

Time of First Successful Submission: 2026-01-13 02:27:08

Other users with su

Time of First Successful Submission: 2026-01-13 02:28:09

Cracking passwords

Time of First Successful Submission: 2026-01-13 02:33:16

Using sudo

Time of First Successful Submission: 2026-01-13 02:34:58

Changing File Ownership

Time of First Successful Submission: 2026-01-13 03:44:23

Groups and Files

Time of First Successful Submission: 2026-01-13 03:46:32

Fun With Groups Names

Time of First Successful Submission: 2026-01-13 03:47:30

Changing Permissions

Time of First Successful Submission: 2026-01-13 03:49:09

Executable Files

Time of First Successful Submission: 2026-01-13 03:49:52

Permission Tweaking Practice

Time of First Successful Submission: 2026-01-13 03:55:59

Permissions Setting Practice

Time of First Successful Submission: 2026-01-13 03:59:08

The SUID Bit

Time of First Successful Submission: 2026-01-13 04:00:49

Chaining with Semicolons

Time of First Successful Submission: 2026-01-13 15:44:13

Building on Success

Time of First Successful Submission: 2026-01-13 15:46:04

Handling Failure

Time of First Successful Submission: 2026-01-13 15:46:55

Your First Shell Script

Time of First Successful Submission: 2026-01-13 15:49:12

Redirecting Script Output

Time of First Successful Submission: 2026-01-13 15:50:46

Executable Shell Scripts

Time of First Successful Submission: 2026-01-13 17:34:07

Understanding Shebangs

Time of First Successful Submission: 2026-01-13 17:37:21

Scripting with Arguments

Time of First Successful Submission: 2026-01-13 17:38:48

Scripting with Conditionals

Time of First Successful Submission: 2026-01-13 17:40:27

Scripting with Default Cases

Time of First Successful Submission: 2026-01-13 17:42:30

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-01-13 17:44:32

Reading Shell Scripts

Time of First Successful Submission: 2026-01-13 17:49:26

Launching Screen

Time of First Successful Submission: 2026-01-13 17:50:39

Detaching and Attaching

Time of First Successful Submission: 2026-01-13 17:53:06

Finding Sessions

Time of First Successful Submission: 2026-01-13 17:54:36

Switching Windows

Time of First Successful Submission: 2026-01-13 17:55:33

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-01-13 17:56:36

Switching Windows (tmux)

Time of First Successful Submission: 2026-01-13 18:02:43

The PATH Variable

Time of First Successful Submission: 2026-01-13 18:04:54

Setting PATH

Time of First Successful Submission: 2026-01-13 18:06:27

Finding Commands

Time of First Successful Submission: 2026-01-13 18:07:35

Adding Commands

Time of First Successful Submission: 2026-01-13 18:10:21

Hijacking Commands

Time of First Successful Submission: 2026-01-13 18:12:34

Bashrc Backdoor

Time of First Successful Submission: 2026-01-13 18:15:50

Sniffing Input

Time of First Successful Submission: 2026-01-13 18:34:18

Overshared Directories

Time of First Successful Submission: 2026-01-13 18:43:02

Tricky Linking

Time of First Successful Submission: 2026-01-13 18:46:11

Sniffing Process Arguments

Time of First Successful Submission: 2026-01-13 18:47:51

Snooping on Configurations

Time of First Successful Submission: 2026-01-13 18:49:52

The Fork Bomb

Time of First Successful Submission: 2026-01-13 19:04:25

Disk-Space Doomsday

Time of First Successful Submission: 2026-01-13 04:06:17

rm -rf /

Time of First Successful Submission: 2026-01-13 04:09:45

Life after rm -rf /

Time of First Successful Submission: 2026-01-13 04:13:24

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-01-13 04:17:37


Computing 101

94 / 94 62 / 21519


Your First Register

Time of First Successful Submission: 2026-02-19 19:03:36

Your First Syscall

Time of First Successful Submission: 2026-02-19 19:06:14

Exit Codes

Time of First Successful Submission: 2026-02-19 19:07:56

Building Executables

Time of First Successful Submission: 2026-02-19 19:12:58

Moving Between Registers

Time of First Successful Submission: 2026-02-19 19:15:13

Loading From Memory

Time of First Successful Submission: 2026-02-19 19:34:55

More Loading Practice

Time of First Successful Submission: 2026-02-19 19:36:00

Dereferencing Pointers

Time of First Successful Submission: 2026-02-19 19:37:56

Dereferencing Yourself

Time of First Successful Submission: 2026-02-19 19:39:21

Dereferencing with Offsets

Time of First Successful Submission: 2026-02-19 19:40:50

Stored Addresses

Time of First Successful Submission: 2026-02-19 19:42:38

Double Dereference

Time of First Successful Submission: 2026-02-19 19:44:11

The Stack

Time of First Successful Submission: 2026-02-19 19:47:15

Stack Offsets

Time of First Successful Submission: 2026-02-19 19:48:50

Program Arguments on the Stack

Time of First Successful Submission: 2026-02-19 19:50:31

Popping From the Stack

Time of First Successful Submission: 2026-02-19 19:52:31

Disassembling Programs

Time of First Successful Submission: 2026-02-19 19:55:44

Tracing Syscalls

Time of First Successful Submission: 2026-02-19 19:58:03

Starting GDB

Time of First Successful Submission: 2026-02-19 20:16:56

Quitting GDB

Time of First Successful Submission: 2026-02-19 20:17:41

Starting Programs in GDB

Time of First Successful Submission: 2026-02-19 20:19:51

Disassembling in GDB

Time of First Successful Submission: 2026-02-19 20:22:32

Stepping Through Instructions

Time of First Successful Submission: 2026-02-19 20:24:05

Reading Register Values

Time of First Successful Submission: 2026-02-19 20:25:24

Popping Stack Values

Time of First Successful Submission: 2026-02-19 20:26:46

Examining Memory

Time of First Successful Submission: 2026-02-19 20:28:31

Examining Stack Pointers

Time of First Successful Submission: 2026-02-19 20:34:37

Cooperative Debugging

Time of First Successful Submission: 2026-02-19 23:04:12

Writing Output

Time of First Successful Submission: 2026-02-19 23:47:42

Chaining Syscalls

Time of First Successful Submission: 2026-02-19 23:49:13

Writing Strings

Time of First Successful Submission: 2026-02-19 23:50:43

Reading Data

Time of First Successful Submission: 2026-02-19 23:54:53

Opening Files

Time of First Successful Submission: 2026-02-19 23:57:27

Hardcoding the Filename

Time of First Successful Submission: 2026-02-20 00:03:21

Comparing Values

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

Comparing Characters

Time of First Successful Submission: 2026-02-20 01:27:24

Conditional Control Flow

Time of First Successful Submission: 2026-02-20 01:34:47

Comparing Strings

Time of First Successful Submission: 2026-02-20 01:37:06

Reverse the Password

Time of First Successful Submission: 2026-02-20 01:42:13

Conditionals Without Conditionals

Time of First Successful Submission: 2026-02-20 03:12:23

Looping

Time of First Successful Submission: 2026-02-20 03:48:24

Reverse the Calculation

Time of First Successful Submission: 2026-02-20 03:51:12

Reverse the Reverse

Time of First Successful Submission: 2026-02-20 03:52:38

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-02-20 03:54:52

Loops on Data

Time of First Successful Submission: 2026-02-20 03:56:16

set-register

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

set-multiple-registers

Time of First Successful Submission: 2026-02-20 04:06:46

add-to-register

Time of First Successful Submission: 2026-02-20 04:08:09

linear-equation-registers

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

integer-division

Time of First Successful Submission: 2026-02-20 04:14:42

modulo-operation

Time of First Successful Submission: 2026-02-20 04:17:11

set-upper-byte

Time of First Successful Submission: 2026-02-20 04:19:05

efficient-modulo

Time of First Successful Submission: 2026-02-20 04:31:37

byte-extraction

Time of First Successful Submission: 2026-02-20 04:35:56

bitwise-and

Time of First Successful Submission: 2026-02-20 04:43:36

check-even

Time of First Successful Submission: 2026-02-20 04:57:46

memory-read

Time of First Successful Submission: 2026-02-20 04:59:45

memory-write

Time of First Successful Submission: 2026-02-20 05:00:55

memory-increment

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

byte-access

Time of First Successful Submission: 2026-02-20 05:05:45

memory-size-access

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

little-endian-write

Time of First Successful Submission: 2026-02-20 05:11:03

memory-sum

Time of First Successful Submission: 2026-02-20 05:14:29

stack-subtraction

Time of First Successful Submission: 2026-02-20 05:15:19

swap-stack-values

Time of First Successful Submission: 2026-02-20 05:16:17

average-stack-values

Time of First Successful Submission: 2026-02-20 05:19:53

absolute-jump

Time of First Successful Submission: 2026-02-20 05:20:56

relative-jump

Time of First Successful Submission: 2026-02-20 05:29:20

jump-trampoline

Time of First Successful Submission: 2026-02-20 05:32:08

conditional-jump

Time of First Successful Submission: 2026-02-20 16:19:00

indirect-jump

Time of First Successful Submission: 2026-02-20 16:39:40

average-loop

Time of First Successful Submission: 2026-02-20 16:54:12

count-non-zero

Time of First Successful Submission: 2026-02-20 17:05:01

string-lower

Time of First Successful Submission: 2026-02-20 17:41:42

most-common-byte

Time of First Successful Submission: 2026-02-20 20:38:26

Exit

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

Socket

Time of First Successful Submission: 2026-02-20 23:10:13

Bind

Time of First Successful Submission: 2026-02-20 23:24:35

Listen

Time of First Successful Submission: 2026-02-20 23:28:36

Accept

Time of First Successful Submission: 2026-02-20 23:32:16

Static Response

Time of First Successful Submission: 2026-02-21 00:07:48

Dynamic Response

Time of First Successful Submission: 2026-02-24 17:41:02

Iterative GET Server

Time of First Successful Submission: 2026-02-24 17:51:40

Concurrent GET Server

Time of First Successful Submission: 2026-02-24 18:04:29

Concurrent POST Server

Time of First Successful Submission: 2026-02-24 18:20:52

Web Server

Time of First Successful Submission: 2026-02-24 23:33:29

Debugging Programs

Time of First Successful Submission: 2026-02-20 21:07:44

Inspecting Registers

Time of First Successful Submission: 2026-02-20 21:09:51

Examining Memory

Time of First Successful Submission: 2026-02-20 21:17:32

Setting Breakpoints

Time of First Successful Submission: 2026-02-20 21:27:35

GDB Scripting

Time of First Successful Submission: 2026-02-20 21:40:38

Modifying Data

Time of First Successful Submission: 2026-02-20 22:08:30

Modifying Execution

Time of First Successful Submission: 2026-02-20 22:09:37

Broken Functions

Time of First Successful Submission: 2026-02-20 22:23:38


Playing With Programs

65 / 116 4164 / 23376


What's the password?

Time of First Successful Submission: 2026-01-20 23:43:06

... and again!

Time of First Successful Submission: 2026-01-20 23:44:35

Newline Troubles

Time of First Successful Submission: 2026-01-20 23:50:14

Reasoning about files

Time of First Successful Submission: 2026-01-20 23:52:51

Specifying Filenames

Time of First Successful Submission: 2026-01-20 23:54:44

Binary and Hex Encoding

Time of First Successful Submission: 2026-01-21 00:01:04

More Hex

Time of First Successful Submission: 2026-01-21 00:02:26

Decoding Hex

Time of First Successful Submission: 2026-01-21 00:28:20

Decoding Practice

Time of First Successful Submission: 2026-01-21 15:45:29

Encoding Practice

Time of First Successful Submission: 2026-01-21 15:48:03

Hex-encoding ASCII

Time of First Successful Submission: 2026-01-21 20:21:14

Nested Encoding

Time of First Successful Submission: 2026-01-21 20:34:28

Hex-encoding UTF-8

Time of First Successful Submission: 2026-01-21 20:47:58

UTF Mixups

Time of First Successful Submission: 2026-01-21 22:07:55

Modifying Encoded Data

Time of First Successful Submission: 2026-01-21 22:18:18

Decoding Base64

Time of First Successful Submission: 2026-01-21 22:23:27

Encoding Base64

Time of First Successful Submission: 2026-01-21 22:26:24

Dealing with Obfuscation

Time of First Successful Submission: 2026-01-21 22:28:00

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-01-21 22:45:04

Your First HTTP Request

Time of First Successful Submission: 2026-01-22 01:24:51

Reading Flask

Time of First Successful Submission: 2026-01-22 01:37:20

Commented Data

Time of First Successful Submission: 2026-01-22 01:39:44

HTTP Metadata

Time of First Successful Submission: 2026-01-22 01:44:23

HTTP (netcat)

Time of First Successful Submission: 2026-01-22 01:47:26

HTTP Paths (netcat)

Time of First Successful Submission: 2026-01-22 01:48:31

HTTP (curl)

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

HTTP (python)

Time of First Successful Submission: 2026-01-22 01:56:16

HTTP Host Header (python)

Time of First Successful Submission: 2026-01-22 02:07:52

HTTP Host Header (curl)

Time of First Successful Submission: 2026-01-22 02:18:49

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-01-22 02:23:39

URL Encoding (netcat)

Time of First Successful Submission: 2026-01-22 02:27:34

HTTP GET Parameters

Time of First Successful Submission: 2026-01-22 02:33:44

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-01-22 02:36:43

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-01-22 02:38:59

HTTP Forms

Time of First Successful Submission: 2026-01-22 02:46:19

HTTP Forms (curl)

Time of First Successful Submission: 2026-01-22 02:51:30

HTTP Forms (netcat)

Time of First Successful Submission: 2026-01-22 03:02:26

HTTP Forms (python)

Time of First Successful Submission: 2026-01-22 03:08:35

HTTP Forms Without Forms

Time of First Successful Submission: 2026-01-22 03:38:15

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-01-22 03:43:34

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-01-22 04:00:26

HTTP Redirects (netcat)

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

HTTP Redirects (curl)

Time of First Successful Submission: 2026-01-22 04:06:11

HTTP Redirects (python)

Time of First Successful Submission: 2026-01-22 04:08:59

HTTP Cookies (curl)

Time of First Successful Submission: 2026-01-22 04:21:29

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-01-22 04:23:47

HTTP Cookies (python)

Time of First Successful Submission: 2026-01-22 04:27:21

Server State (python)

Time of First Successful Submission: 2026-01-22 04:29:59

Listening Web

Time of First Successful Submission: 2026-01-22 04:34:25

Speaking Redirects

Time of First Successful Submission: 2026-01-22 04:50:39

JavaScript Redirects

Time of First Successful Submission: 2026-01-22 18:40:21

Including JavaScript

Time of First Successful Submission: 2026-01-23 04:18:10

HTTP (javascript)

Time of First Successful Submission: 2026-01-23 04:36:44

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-01-23 04:42:53

HTTP Forms (javascript)

Time of First Successful Submission: 2026-01-23 04:53:08

SQL Queries

Time of First Successful Submission: 2026-01-23 16:29:54

Filtering SQL

Time of First Successful Submission: 2026-01-23 16:39:41

Choosing Columns

Time of First Successful Submission: 2026-01-23 16:42:14

Exclusionary Filtering

Time of First Successful Submission: 2026-01-23 16:43:58

Filtering Strings

Time of First Successful Submission: 2026-01-23 16:45:24

Filtering on Expressions

Time of First Successful Submission: 2026-01-23 16:47:07

SELECTing Expressions

Time of First Successful Submission: 2026-01-23 16:54:47

Composite Conditions

Time of First Successful Submission: 2026-01-23 16:57:38

Reaching Your LIMITs

Time of First Successful Submission: 2026-01-23 17:00:24

Querying Metadata

Time of First Successful Submission: 2026-01-23 17:06:01


GCA CTF

5 / 104 32221 / 43594


Using the Terminal

Time of First Successful Submission: 2026-01-12 21:11:27

Using the VSCode Workspace

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

Using the GUI Desktop

Time of First Successful Submission: 2026-01-12 21:13:39

Pasting into the Desktop

Time of First Successful Submission: 2026-01-12 21:14:29

Restarting Challenges

Time of First Successful Submission: 2026-01-12 21:16:08