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Intro to Cybersecurity

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File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2025-04-08 03:26:23

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2025-04-08 13:56:35

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2025-04-08 15:56:13

Reading Endianness (Python)

Time of First Successful Submission: 2025-04-08 17:05:05

Your First Overflow (easy)

Time of First Successful Submission: 2025-01-16 02:10:05

Your First Overflow (hard)

Time of First Successful Submission: 2025-01-16 02:12:36

Precision (easy)

Time of First Successful Submission: 2025-01-16 02:14:51

Precision (hard)

Time of First Successful Submission: 2025-01-16 02:27:39

Variable Control (easy)

Time of First Successful Submission: 2025-01-16 02:58:20

Variable Control (hard)

Time of First Successful Submission: 2025-01-16 03:02:28

Control Hijack (easy)

Time of First Successful Submission: 2025-01-16 03:06:40

Control Hijack (hard)

Time of First Successful Submission: 2025-01-16 03:17:12

Tricky Control Hijack (easy)

Time of First Successful Submission: 2025-01-16 16:25:21

Tricky Control Hijack (hard)

Time of First Successful Submission: 2025-01-16 16:29:18

PIEs (easy)

Time of First Successful Submission: 2025-01-16 21:43:06

PIEs (hard)

Time of First Successful Submission: 2025-01-16 21:48:49

String Lengths (easy)

Time of First Successful Submission: 2025-04-08 02:14:51

String Lengths (hard)

Time of First Successful Submission: 2025-04-08 02:28:31

Basic Shellcode

Time of First Successful Submission: 2025-04-08 02:36:48

NOP Sleds

Time of First Successful Submission: 2025-04-08 03:13:11

NULL-Free Shellcode

Time of First Successful Submission: 2025-04-08 03:15:19

Hijack to (Mapped) Shellcode (easy)

Time of First Successful Submission: 2025-04-10 02:14:32

Hijack to (Mapped) Shellcode (hard)

Time of First Successful Submission: 2025-04-11 14:26:49

Hijack to Shellcode (easy)

Time of First Successful Submission: 2025-04-11 14:42:27

Hijack to Shellcode (hard)

Time of First Successful Submission: 2025-04-11 14:54:55

Program Security

73 / 161 909 / 7363

level4

Time of First Successful Submission: 2025-04-26 22:00:31

level5

Time of First Successful Submission: 2025-04-26 23:16:52

level6

Time of First Successful Submission: 2025-04-27 14:34:13

level7

Time of First Successful Submission: 2025-04-27 14:51:16

level8

Time of First Successful Submission: 2025-04-28 17:20:55

level9

Time of First Successful Submission: 2025-04-28 18:23:22

level10

Time of First Successful Submission: 2025-04-29 11:47:01

level11

Time of First Successful Submission: 2025-04-29 11:50:24

level12

Time of First Successful Submission: 2025-04-29 12:20:14

level13

Time of First Successful Submission: 2025-04-29 15:08:34

level14

Time of First Successful Submission: 2025-04-29 15:50:57

level1.0

Time of First Successful Submission: 2025-04-30 13:12:21

level1.1

Time of First Successful Submission: 2025-04-30 13:15:34

level2.0

Time of First Successful Submission: 2025-04-30 13:18:28

level2.1

Time of First Successful Submission: 2025-04-30 13:21:23

level3.0

Time of First Successful Submission: 2025-04-30 13:24:25

level3.1

Time of First Successful Submission: 2025-04-30 13:31:09

level4.0

Time of First Successful Submission: 2025-04-30 13:34:04

level4.1

Time of First Successful Submission: 2025-04-30 13:37:36

level5.0

Time of First Successful Submission: 2025-04-30 13:50:17

level5.1

Time of First Successful Submission: 2025-04-30 13:56:18

level6.0

Time of First Successful Submission: 2025-04-30 13:59:53

level6.1

Time of First Successful Submission: 2025-04-30 14:02:48

level7.0

Time of First Successful Submission: 2025-04-30 15:40:47

level7.1

Time of First Successful Submission: 2025-04-30 17:01:24

level8.0

Time of First Successful Submission: 2025-04-30 21:22:57

level8.1

Time of First Successful Submission: 2025-04-30 21:50:33

level9.0

Time of First Successful Submission: 2025-05-01 02:05:18

level9.1

Time of First Successful Submission: 2025-05-01 02:10:30

level10.0

Time of First Successful Submission: 2025-05-01 02:12:49

level10.1

Time of First Successful Submission: 2025-05-01 02:15:43

level11.0

Time of First Successful Submission: 2025-05-01 02:33:42

level11.1

Time of First Successful Submission: 2025-05-01 02:37:26

level12.0

Time of First Successful Submission: 2025-05-01 12:52:07

level12.1

Time of First Successful Submission: 2025-05-01 12:54:05

level13.0

Time of First Successful Submission: 2025-05-01 13:14:02

level13.1

Time of First Successful Submission: 2025-05-01 13:18:25

level14.0

Time of First Successful Submission: 2025-05-01 20:19:13

level14.1

Time of First Successful Submission: 2025-05-01 20:29:18

level15.0

Time of First Successful Submission: 2025-05-02 14:57:33

level15.1

Time of First Successful Submission: 2025-05-02 15:02:34

level16.0

Time of First Successful Submission: 2025-05-02 15:09:52

level16.1

Time of First Successful Submission: 2025-05-02 15:12:53

level17.0

Time of First Successful Submission: 2025-05-02 15:30:16

level17.1

Time of First Successful Submission: 2025-05-02 15:36:04

level18.0

Time of First Successful Submission: 2025-05-02 21:57:24

level18.1

Time of First Successful Submission: 2025-05-02 22:09:18

level19.0

Time of First Successful Submission: 2025-05-03 22:12:53

level19.1

Time of First Successful Submission: 2025-05-04 00:09:05

level20.0

Time of First Successful Submission: 2025-05-08 18:29:00

level20.1

Time of First Successful Submission: 2025-05-08 19:25:57

level21.0

Time of First Successful Submission: 2025-05-08 20:49:59

level21.1

Time of First Successful Submission: 2025-05-08 21:40:59

level1.0

Time of First Successful Submission: 2025-01-17 18:36:31

level1.1

Time of First Successful Submission: 2025-01-17 18:46:32

level2.0

Time of First Successful Submission: 2025-01-17 19:03:27

level2.1

Time of First Successful Submission: 2025-01-17 19:37:05

level3.0

Time of First Successful Submission: 2025-01-19 19:14:14

level3.1

Time of First Successful Submission: 2025-01-19 19:23:46

level4.0

Time of First Successful Submission: 2025-01-19 21:31:59

level4.1

Time of First Successful Submission: 2025-01-19 22:06:07

level5.0

Time of First Successful Submission: 2025-01-20 16:52:17

level5.1

Time of First Successful Submission: 2025-01-20 18:46:39

level6.0

Time of First Successful Submission: 2025-01-22 16:14:53

level6.1

Time of First Successful Submission: 2025-01-22 16:23:52

level7.0

Time of First Successful Submission: 2025-01-23 20:28:44

level7.1

Time of First Successful Submission: 2025-01-23 20:35:18

level8.0

Time of First Successful Submission: 2025-01-24 21:11:21

level8.1

Time of First Successful Submission: 2025-01-24 21:34:03

level9.0

Time of First Successful Submission: 2025-01-26 02:52:42

level9.1

Time of First Successful Submission: 2025-01-26 02:57:03

level10.0

Time of First Successful Submission: 2025-01-26 17:35:20

level10.1

Time of First Successful Submission: 2025-01-26 17:40:08

System Security

22 / 93 954 / 2389

level1.0

Time of First Successful Submission: 2025-01-17 04:22:49

level1.1

Time of First Successful Submission: 2025-01-17 15:33:41

level2.0

Time of First Successful Submission: 2025-01-17 15:41:11

level2.1

Time of First Successful Submission: 2025-01-17 15:45:51

level3.0

Time of First Successful Submission: 2025-01-17 15:51:31

level3.1

Time of First Successful Submission: 2025-01-17 15:53:22

level4.0

Time of First Successful Submission: 2025-01-17 16:12:52

level4.1

Time of First Successful Submission: 2025-01-17 20:04:23

level5.0

Time of First Successful Submission: 2025-01-18 17:58:59

level5.1

Time of First Successful Submission: 2025-01-18 18:04:57

level6.0

Time of First Successful Submission: 2025-01-20 20:26:14

level6.1

Time of First Successful Submission: 2025-01-20 20:29:57

level7.0

Time of First Successful Submission: 2025-01-22 01:27:57

level7.1

Time of First Successful Submission: 2025-01-22 01:34:29

level8.0

Time of First Successful Submission: 2025-02-26 03:25:06

level8.1

Time of First Successful Submission: 2025-02-26 03:27:26

level9.0

Time of First Successful Submission: 2025-03-10 17:22:49

level9.1

Time of First Successful Submission: 2025-03-10 17:24:54

level10.0

Time of First Successful Submission: 2025-03-11 03:49:37

level10.1

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

level11.0

Time of First Successful Submission: 2025-03-25 17:23:28

level11.1

Time of First Successful Submission: 2025-03-25 17:28:27

Software Exploitation

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Level1.0

Time of First Successful Submission: 2025-03-06 22:01:02

Level1.1

Time of First Successful Submission: 2025-03-06 22:03:11

Getting Started

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Using the VSCode Workspace

Time of First Successful Submission: 2025-01-16 01:55:45

Using the GUI Desktop

Time of First Successful Submission: 2025-01-16 01:57:19

Pasting into the Desktop

Time of First Successful Submission: 2025-01-16 02:05:09

Restarting Challenges

Time of First Successful Submission: 2025-04-08 01:33:43

Getting Help

Time of First Successful Submission: 2025-04-08 01:35:35

Challenge Programs

Time of First Successful Submission: 2025-04-08 01:38:09

The Flag File

Time of First Successful Submission: 2025-04-18 17:18:32

Using Practice Mode

Time of First Successful Submission: 2025-04-18 17:22:48

Persistent Home Directories - One

Time of First Successful Submission: 2025-04-18 17:25:22

Persistent Home Directories - Two

Time of First Successful Submission: 2025-04-18 17:26:49

Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2025-04-18 21:05:54

Intro to Arguments

Time of First Successful Submission: 2025-04-18 21:07:35

The Root

Time of First Successful Submission: 2025-04-18 21:41:47

Program and absolute paths

Time of First Successful Submission: 2025-04-19 00:19:13

Position thy self

Time of First Successful Submission: 2025-04-19 00:24:11

Position elsewhere

Time of First Successful Submission: 2025-04-19 00:25:19

Position yet elsewhere

Time of First Successful Submission: 2025-04-19 00:26:27

implicit relative paths, from /

Time of First Successful Submission: 2025-04-19 00:27:14

explicit relative paths, from /

Time of First Successful Submission: 2025-04-19 00:28:42

implicit relative path

Time of First Successful Submission: 2025-04-19 00:29:20

home sweet home

Time of First Successful Submission: 2025-04-19 00:31:25

cat: not the pet, but the command!

Time of First Successful Submission: 2025-04-19 14:44:51

catting absolute paths

Time of First Successful Submission: 2025-04-19 14:46:03

more catting practice

Time of First Successful Submission: 2025-04-19 14:56:59

grepping for a needle in a haystack

Time of First Successful Submission: 2025-04-19 14:59:18

listing files

Time of First Successful Submission: 2025-04-19 15:00:58

touching files

Time of First Successful Submission: 2025-04-19 15:08:31

removing files

Time of First Successful Submission: 2025-04-19 15:10:32

hidden files

Time of First Successful Submission: 2025-04-19 15:11:51

An Epic Filesystem Quest

Time of First Successful Submission: 2025-04-19 15:18:23

making directories

Time of First Successful Submission: 2025-04-19 15:19:29

finding files

Time of First Successful Submission: 2025-04-19 15:21:16

linking files

Time of First Successful Submission: 2025-04-19 15:22:45

Learning From Documentation

Time of First Successful Submission: 2025-04-19 15:32:09

Learning Complex Usage

Time of First Successful Submission: 2025-04-19 15:36:48

Reading Manuals

Time of First Successful Submission: 2025-04-19 15:38:16

Searching Manuals

Time of First Successful Submission: 2025-04-19 15:51:28

Searching For Manuals

Time of First Successful Submission: 2025-04-19 16:02:07

Helpful Programs

Time of First Successful Submission: 2025-04-19 16:07:07

Help for Builtins

Time of First Successful Submission: 2025-04-19 16:08:12

Matching with *

Time of First Successful Submission: 2025-04-19 16:11:00

Matching with ?

Time of First Successful Submission: 2025-04-19 16:18:06

Matching with []

Time of First Successful Submission: 2025-04-19 16:21:17

Matching paths with []

Time of First Successful Submission: 2025-04-19 16:24:56

Mixing globs

Time of First Successful Submission: 2025-04-19 16:40:54

Exclusionary globbing

Time of First Successful Submission: 2025-04-19 16:42:27

Redirecting output

Time of First Successful Submission: 2025-04-19 16:47:24

Redirecting more output

Time of First Successful Submission: 2025-04-19 21:02:40

Computing 101

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Your First Register

Time of First Successful Submission: 2025-04-19 22:18:35

Your First Syscall

Time of First Successful Submission: 2025-04-19 22:19:41

Exit Codes

Time of First Successful Submission: 2025-04-19 22:21:04

Building Executables

Time of First Successful Submission: 2025-04-19 22:26:13

Moving Between Registers

Time of First Successful Submission: 2025-04-19 22:32:05

Tracing Syscalls

Time of First Successful Submission: 2025-04-22 01:10:52

Starting GDB

Time of First Successful Submission: 2025-04-22 01:11:50

Starting Programs in GDB

Time of First Successful Submission: 2025-04-22 01:12:42

Loading From Memory

Time of First Successful Submission: 2025-04-22 01:18:40

More Loading Practice

Time of First Successful Submission: 2025-04-22 01:19:36

Dereferencing Pointers

Time of First Successful Submission: 2025-04-22 01:21:03

Dereferencing Yourself

Time of First Successful Submission: 2025-04-22 01:22:12

Dereferencing with Offsets

Time of First Successful Submission: 2025-04-22 01:23:10

Stored Addresses

Time of First Successful Submission: 2025-04-22 01:25:17

Double Dereference

Time of First Successful Submission: 2025-04-22 01:30:27

Triple Dereference

Time of First Successful Submission: 2025-04-22 01:32:04

Writing Output

Time of First Successful Submission: 2025-04-22 19:31:11

Chaining Syscalls

Time of First Successful Submission: 2025-04-22 19:32:24

Writing Strings

Time of First Successful Submission: 2025-04-22 19:34:23

Reading Data

Time of First Successful Submission: 2025-04-22 19:37:56

set-register

Time of First Successful Submission: 2025-04-23 19:38:59

set-multiple-registers

Time of First Successful Submission: 2025-04-23 19:43:39

add-to-register

Time of First Successful Submission: 2025-04-23 19:46:05

linear-equation-registers

Time of First Successful Submission: 2025-04-23 19:52:58

integer-division

Time of First Successful Submission: 2025-04-23 19:58:12

modulo-operation

Time of First Successful Submission: 2025-04-23 20:00:46

set-upper-byte

Time of First Successful Submission: 2025-04-23 20:31:03

efficient-modulo

Time of First Successful Submission: 2025-04-23 20:37:44

byte-extraction

Time of First Successful Submission: 2025-04-23 20:42:15

bitwise-and

Time of First Successful Submission: 2025-04-23 20:44:42

check-even

Time of First Successful Submission: 2025-04-23 20:48:28

memory-read

Time of First Successful Submission: 2025-04-23 20:54:09

memory-write

Time of First Successful Submission: 2025-04-23 21:05:45

memory-increment

Time of First Successful Submission: 2025-04-23 21:09:24

byte-access

Time of First Successful Submission: 2025-04-23 21:12:07

memory-size-access

Time of First Successful Submission: 2025-04-23 21:17:11

little-endian-write

Time of First Successful Submission: 2025-04-23 21:22:39

memory-sum

Time of First Successful Submission: 2025-04-23 21:26:48

stack-subtraction

Time of First Successful Submission: 2025-04-23 21:32:28

swap-stack-values

Time of First Successful Submission: 2025-04-23 21:34:27

average-stack-values

Time of First Successful Submission: 2025-04-23 21:38:04

absolute-jump

Time of First Successful Submission: 2025-04-23 21:41:23

relative-jump

Time of First Successful Submission: 2025-04-23 22:15:38

jump-trampoline

Time of First Successful Submission: 2025-04-23 22:18:04

conditional-jump

Time of First Successful Submission: 2025-04-23 22:42:10

indirect-jump

Time of First Successful Submission: 2025-04-23 22:52:43

average-loop

Time of First Successful Submission: 2025-04-23 23:04:28

count-non-zero

Time of First Successful Submission: 2025-04-23 23:13:45

string-lower

Time of First Successful Submission: 2025-04-23 23:48:17

most-common-byte

Time of First Successful Submission: 2025-04-24 14:49:14

level1

Time of First Successful Submission: 2025-04-24 15:19:41

level2

Time of First Successful Submission: 2025-04-24 15:21:45

level3

Time of First Successful Submission: 2025-04-24 15:29:35

level4

Time of First Successful Submission: 2025-04-24 17:49:52

level5

Time of First Successful Submission: 2025-04-25 00:01:58

level6

Time of First Successful Submission: 2025-04-25 00:26:05

level7

Time of First Successful Submission: 2025-04-25 00:32:54

level8

Time of First Successful Submission: 2025-04-25 00:49:39

Exit

Time of First Successful Submission: 2025-04-26 14:30:00

Socket

Time of First Successful Submission: 2025-04-26 14:51:13

Bind

Time of First Successful Submission: 2025-04-26 15:16:29

Listen

Time of First Successful Submission: 2025-04-26 15:30:21

Accept

Time of First Successful Submission: 2025-04-26 16:05:23

Static Response

Time of First Successful Submission: 2025-04-26 16:39:38

Dynamic Response

Time of First Successful Submission: 2025-04-26 17:24:27

Iterative GET Server

Time of First Successful Submission: 2025-04-26 17:30:16

Concurrent GET Server

Time of First Successful Submission: 2025-04-26 18:41:08

Concurrent POST Server

Time of First Successful Submission: 2025-04-26 20:36:59

Web Server

Time of First Successful Submission: 2025-04-26 20:54:19