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31 / 232 10730 / 25693


Triple Dereference

Time of First Successful Submission: 2026-02-08 08:06:40

level1

Time of First Successful Submission: 2026-02-09 07:42:26

level2

Time of First Successful Submission: 2026-02-09 08:50:36

level2a

Time of First Successful Submission: 2026-02-09 07:48:34

level3

Time of First Successful Submission: 2026-02-09 08:55:07

level4

Time of First Successful Submission: 2026-02-09 09:12:49

level5

Time of First Successful Submission: 2026-02-09 09:30:04

level6

Time of First Successful Submission: 2026-02-09 10:10:15

level6a

Time of First Successful Submission: 2026-02-09 09:35:27

level7

Time of First Successful Submission: 2026-02-10 07:18:32

level8

Time of First Successful Submission: 2026-02-10 07:26:56

level9

Time of First Successful Submission: 2026-02-10 07:34:31

level10

Time of First Successful Submission: 2026-02-10 07:50:32

level10a

Time of First Successful Submission: 2026-02-10 07:40:46

level10b

Time of First Successful Submission: 2026-02-10 07:44:16

level11

Time of First Successful Submission: 2026-02-10 08:06:52

level11a

Time of First Successful Submission: 2026-02-10 08:01:36

level12

Time of First Successful Submission: 2026-02-11 09:41:21

level13

Time of First Successful Submission: 2026-02-11 09:44:40

level14

Time of First Successful Submission: 2026-02-11 10:07:24

level15

Time of First Successful Submission: 2026-02-11 10:09:36

level16

Time of First Successful Submission: 2026-02-11 10:17:01

level17

Time of First Successful Submission: 2026-02-14 06:42:33

level17a

Time of First Successful Submission: 2026-02-11 10:26:34

level17b

Time of First Successful Submission: 2026-02-11 10:46:14

level18

Time of First Successful Submission: 2026-02-14 08:02:48

level19

Time of First Successful Submission: 2026-02-14 09:04:08

level20

Time of First Successful Submission: 2026-04-27 23:21:31

level21

Time of First Successful Submission: 2026-04-28 22:35:42

level22

Time of First Successful Submission: 2026-04-30 03:29:45

level23

Time of First Successful Submission: 2026-05-01 08:40:23


Intro to Cybersecurity

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Path Traversal 1

Time of First Successful Submission: 2026-05-30 06:28:09

Path Traversal 2

Time of First Successful Submission: 2026-05-30 07:27:20

CMDi 1

Time of First Successful Submission: 2026-06-03 03:54:16

CMDi 2

Time of First Successful Submission: 2026-06-03 03:58:04

CMDi 3

Time of First Successful Submission: 2026-06-03 04:01:27

CMDi 4

Time of First Successful Submission: 2026-06-03 04:04:13

CMDi 5

Time of First Successful Submission: 2026-06-03 04:12:10

CMDi 6

Time of First Successful Submission: 2026-06-03 04:45:55

Authentication Bypass 1

Time of First Successful Submission: 2026-06-03 05:06:41

Authentication Bypass 2

Time of First Successful Submission: 2026-06-03 05:11:05

SQLi 1

Time of First Successful Submission: 2026-06-03 05:38:28

SQLi 2

Time of First Successful Submission: 2026-06-04 07:53:40

SQLi 3

Time of First Successful Submission: 2026-06-04 08:32:02

SQLi 4

Time of First Successful Submission: 2026-06-04 08:58:07

SQLi 5

Time of First Successful Submission: 2026-06-04 11:59:33

XSS 1

Time of First Successful Submission: 2026-06-06 07:40:21

XSS 2

Time of First Successful Submission: 2026-06-06 07:44:43

XSS 3

Time of First Successful Submission: 2026-06-06 07:50:23


Computing 101

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Your First Register

Time of First Successful Submission: 2026-02-05 23:55:27

Your First Syscall

Time of First Successful Submission: 2026-02-06 00:00:07

Exit Codes

Time of First Successful Submission: 2026-02-06 00:03:21

Building Executables

Time of First Successful Submission: 2026-02-06 00:10:47

Moving Between Registers

Time of First Successful Submission: 2026-02-06 00:16:28

Loading From Memory

Time of First Successful Submission: 2026-02-08 07:23:52

More Loading Practice

Time of First Successful Submission: 2026-02-08 07:26:16

Dereferencing Pointers

Time of First Successful Submission: 2026-02-08 07:31:11

Dereferencing Yourself

Time of First Successful Submission: 2026-02-08 07:40:29

Dereferencing with Offsets

Time of First Successful Submission: 2026-02-08 07:48:03

Stored Addresses

Time of First Successful Submission: 2026-02-08 07:51:08

Double Dereference

Time of First Successful Submission: 2026-02-08 08:01:51

The Stack

Time of First Successful Submission: 2026-04-11 14:42:41

Stack Offsets

Time of First Successful Submission: 2026-04-11 14:45:50

Program Arguments on the Stack

Time of First Successful Submission: 2026-04-11 15:05:03

Popping From the Stack

Time of First Successful Submission: 2026-04-16 20:55:04

Disassembling Programs

Time of First Successful Submission: 2026-04-16 21:18:06

Tracing Syscalls

Time of First Successful Submission: 2026-02-06 05:45:26

Starting GDB

Time of First Successful Submission: 2026-02-06 06:37:35

Quitting GDB

Time of First Successful Submission: 2026-04-16 21:26:53

Starting Programs in GDB

Time of First Successful Submission: 2026-02-08 05:51:48

Disassembling in GDB

Time of First Successful Submission: 2026-04-16 21:30:31

Stepping Through Instructions

Time of First Successful Submission: 2026-04-16 21:39:23

Reading Register Values

Time of First Successful Submission: 2026-04-16 21:40:37

Popping Stack Values

Time of First Successful Submission: 2026-04-16 21:42:24

Examining Memory

Time of First Successful Submission: 2026-04-16 21:45:59

Examining Stack Pointers

Time of First Successful Submission: 2026-04-16 21:49:21

Cooperative Debugging

Time of First Successful Submission: 2026-04-16 22:00:21

Writing Output

Time of First Successful Submission: 2026-02-09 06:09:10

Chaining Syscalls

Time of First Successful Submission: 2026-02-09 06:09:47

Writing Strings

Time of First Successful Submission: 2026-02-09 07:21:25

Reading Data

Time of First Successful Submission: 2026-02-09 07:34:57

Opening Files

Time of First Successful Submission: 2026-04-16 22:44:50

Hardcoding the Filename

Time of First Successful Submission: 2026-04-17 16:38:52

Comparing Values

Time of First Successful Submission: 2026-04-20 16:59:20

Comparing Characters

Time of First Successful Submission: 2026-04-21 20:14:47

Conditional Control Flow

Time of First Successful Submission: 2026-04-24 17:07:52

Comparing Strings

Time of First Successful Submission: 2026-04-24 17:15:16

Reverse the Password

Time of First Successful Submission: 2026-04-24 17:21:08

Conditionals Without Conditionals

Time of First Successful Submission: 2026-04-25 15:57:19

Looping

Time of First Successful Submission: 2026-04-25 16:24:33

Reverse the Calculation

Time of First Successful Submission: 2026-04-27 22:26:29

Reverse the Reverse

Time of First Successful Submission: 2026-04-27 22:27:36

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-04-27 22:30:35

Loops on Data

Time of First Successful Submission: 2026-04-27 22:35:12

Exit

Time of First Successful Submission: 2026-05-16 04:43:09

Socket

Time of First Successful Submission: 2026-05-16 04:56:33

Bind

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

Listen

Time of First Successful Submission: 2026-05-16 17:46:11

Accept

Time of First Successful Submission: 2026-05-16 17:56:52

Static Response

Time of First Successful Submission: 2026-05-19 22:23:07

Dynamic Response

Time of First Successful Submission: 2026-05-20 00:26:28

Iterative GET Server

Time of First Successful Submission: 2026-05-20 01:27:33

Concurrent GET Server

Time of First Successful Submission: 2026-05-20 01:46:13

Concurrent POST Server

Time of First Successful Submission: 2026-05-20 02:31:51

Web Server

Time of First Successful Submission: 2026-05-20 02:35:16

Debugging Programs

Time of First Successful Submission: 2026-05-20 03:00:08

Inspecting Registers

Time of First Successful Submission: 2026-05-20 03:07:20

Examining Memory

Time of First Successful Submission: 2026-05-20 03:32:42

Setting Breakpoints

Time of First Successful Submission: 2026-05-20 04:43:38

GDB Scripting

Time of First Successful Submission: 2026-05-20 05:33:32

Modifying Data

Time of First Successful Submission: 2026-05-20 21:44:31

Modifying Execution

Time of First Successful Submission: 2026-05-20 21:48:18

Broken Functions

Time of First Successful Submission: 2026-05-20 22:39:50


Playing With Programs

116 / 116 968 / 24093


What's the password?

Time of First Successful Submission: 2026-05-21 01:26:59

... and again!

Time of First Successful Submission: 2026-05-21 01:28:56

Newline Troubles

Time of First Successful Submission: 2026-05-21 01:34:02

Reasoning about files

Time of First Successful Submission: 2026-05-21 01:46:25

Specifying Filenames

Time of First Successful Submission: 2026-05-21 01:48:48

Binary and Hex Encoding

Time of First Successful Submission: 2026-05-21 02:19:15

More Hex

Time of First Successful Submission: 2026-05-21 02:24:17

Decoding Hex

Time of First Successful Submission: 2026-05-21 03:35:37

Decoding Practice

Time of First Successful Submission: 2026-05-21 03:47:41

Encoding Practice

Time of First Successful Submission: 2026-05-21 04:33:08

Hex-encoding ASCII

Time of First Successful Submission: 2026-05-21 09:57:20

Nested Encoding

Time of First Successful Submission: 2026-05-21 10:35:45

Hex-encoding UTF-8

Time of First Successful Submission: 2026-05-21 23:50:45

UTF Mixups

Time of First Successful Submission: 2026-05-22 00:02:58

Modifying Encoded Data

Time of First Successful Submission: 2026-05-22 00:10:32

Decoding Base64

Time of First Successful Submission: 2026-05-22 00:32:38

Encoding Base64

Time of First Successful Submission: 2026-05-22 00:43:20

Dealing with Obfuscation

Time of First Successful Submission: 2026-05-22 00:41:42

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-05-22 01:06:27

Your First HTTP Request

Time of First Successful Submission: 2026-05-22 23:21:46

Reading Flask

Time of First Successful Submission: 2026-05-22 23:31:25

Commented Data

Time of First Successful Submission: 2026-05-22 23:33:02

HTTP Metadata

Time of First Successful Submission: 2026-05-22 23:36:01

HTTP (netcat)

Time of First Successful Submission: 2026-05-23 09:18:47

HTTP Paths (netcat)

Time of First Successful Submission: 2026-05-23 09:22:22

HTTP (curl)

Time of First Successful Submission: 2026-05-23 09:26:13

HTTP (python)

Time of First Successful Submission: 2026-05-23 09:30:52

HTTP Host Header (python)

Time of First Successful Submission: 2026-05-23 09:38:47

HTTP Host Header (curl)

Time of First Successful Submission: 2026-05-23 09:44:41

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-05-23 09:49:24

URL Encoding (netcat)

Time of First Successful Submission: 2026-05-23 09:53:08

HTTP GET Parameters

Time of First Successful Submission: 2026-05-23 09:57:46

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-05-23 10:10:25

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-05-23 10:12:25

HTTP Forms

Time of First Successful Submission: 2026-05-23 10:15:34

HTTP Forms (curl)

Time of First Successful Submission: 2026-05-23 10:26:13

HTTP Forms (netcat)

Time of First Successful Submission: 2026-05-23 10:37:31

HTTP Forms (python)

Time of First Successful Submission: 2026-05-23 10:43:26

HTTP Forms Without Forms

Time of First Successful Submission: 2026-05-23 10:48:57

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-05-24 00:57:03

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-05-24 01:06:53

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-05-24 01:19:48

HTTP Redirects (curl)

Time of First Successful Submission: 2026-05-24 01:25:37

HTTP Redirects (python)

Time of First Successful Submission: 2026-05-24 01:27:29

HTTP Cookies (curl)

Time of First Successful Submission: 2026-05-24 01:51:26

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-05-24 01:57:33

HTTP Cookies (python)

Time of First Successful Submission: 2026-05-24 02:11:58

Server State (python)

Time of First Successful Submission: 2026-05-24 02:04:38

Listening Web

Time of First Successful Submission: 2026-05-24 02:16:44

Speaking Redirects

Time of First Successful Submission: 2026-05-24 02:38:46

JavaScript Redirects

Time of First Successful Submission: 2026-05-26 03:11:35

Including JavaScript

Time of First Successful Submission: 2026-05-26 03:24:29

HTTP (javascript)

Time of First Successful Submission: 2026-05-26 04:07:13

HTTP Get Parameters (javascript)

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

HTTP Forms (javascript)

Time of First Successful Submission: 2026-05-26 04:23:05

cat

Time of First Successful Submission: 2026-05-26 04:52:47

more

Time of First Successful Submission: 2026-05-26 04:54:20

less

Time of First Successful Submission: 2026-05-26 04:54:40

tail

Time of First Successful Submission: 2026-05-26 04:54:56

head

Time of First Successful Submission: 2026-05-26 04:55:22

sort

Time of First Successful Submission: 2026-05-26 04:55:36

vim

Time of First Successful Submission: 2026-05-26 04:56:01

emacs

Time of First Successful Submission: 2026-05-26 04:56:35

nano

Time of First Successful Submission: 2026-05-26 04:57:18

rev

Time of First Successful Submission: 2026-05-26 04:57:40

od

Time of First Successful Submission: 2026-05-26 05:02:55

hd

Time of First Successful Submission: 2026-05-26 05:04:06

xxd

Time of First Successful Submission: 2026-05-26 05:04:39

base32

Time of First Successful Submission: 2026-05-26 05:04:59

base64

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

split

Time of First Successful Submission: 2026-05-26 05:08:03

gzip

Time of First Successful Submission: 2026-05-26 05:10:58

bzip2

Time of First Successful Submission: 2026-05-26 05:11:53

zip

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

tar

Time of First Successful Submission: 2026-05-26 05:23:59

ar

Time of First Successful Submission: 2026-05-26 05:31:49

cpio

Time of First Successful Submission: 2026-05-26 06:28:46

genisoimage

Time of First Successful Submission: 2026-05-26 08:00:35

env

Time of First Successful Submission: 2026-05-26 08:05:28

find

Time of First Successful Submission: 2026-05-26 08:16:08

make

Time of First Successful Submission: 2026-05-26 08:25:32

nice

Time of First Successful Submission: 2026-05-26 08:31:53

timeout

Time of First Successful Submission: 2026-05-26 08:37:49

stdbuf

Time of First Successful Submission: 2026-05-26 08:38:43

setarch

Time of First Successful Submission: 2026-05-26 08:40:10

watch

Time of First Successful Submission: 2026-05-26 09:05:10

socat

Time of First Successful Submission: 2026-05-26 09:12:29

whiptail

Time of First Successful Submission: 2026-05-26 09:26:42

awk

Time of First Successful Submission: 2026-05-26 09:35:54

sed

Time of First Successful Submission: 2026-05-26 09:39:18

ed

Time of First Successful Submission: 2026-05-26 09:45:18

chown

Time of First Successful Submission: 2026-05-26 09:45:52

chmod

Time of First Successful Submission: 2026-05-26 09:46:21

cp

Time of First Successful Submission: 2026-05-26 09:58:06

mv

Time of First Successful Submission: 2026-05-26 10:31:00

perl

Time of First Successful Submission: 2026-05-28 09:22:36

python

Time of First Successful Submission: 2026-05-28 09:23:27

ruby

Time of First Successful Submission: 2026-05-28 09:24:38

bash

Time of First Successful Submission: 2026-05-28 09:26:32

date

Time of First Successful Submission: 2026-05-28 09:36:36

dmesg

Time of First Successful Submission: 2026-05-28 09:37:54

wc

Time of First Successful Submission: 2026-05-28 09:38:52

gcc

Time of First Successful Submission: 2026-05-28 10:27:28

as

Time of First Successful Submission: 2026-05-28 10:28:16

wget

Time of First Successful Submission: 2026-05-28 10:38:14

ssh-keygen

Time of First Successful Submission: 2026-05-29 07:08:37

SQL Queries

Time of First Successful Submission: 2026-05-29 07:15:56

Filtering SQL

Time of First Successful Submission: 2026-05-29 07:19:32

Choosing Columns

Time of First Successful Submission: 2026-05-29 07:21:48

Exclusionary Filtering

Time of First Successful Submission: 2026-05-29 07:27:18

Filtering Strings

Time of First Successful Submission: 2026-05-29 07:29:09

Filtering on Expressions

Time of First Successful Submission: 2026-05-29 07:41:58

SELECTing Expressions

Time of First Successful Submission: 2026-05-29 07:56:08

Composite Conditions

Time of First Successful Submission: 2026-05-29 08:02:00

Reaching Your LIMITs

Time of First Successful Submission: 2026-05-29 08:07:52

Querying Metadata

Time of First Successful Submission: 2026-05-29 08:11:58