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Triple Dereference

Time of First Successful Submission: 2026-02-11 19:42:41

Intro to Programming Languages

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Commands

Time of First Successful Submission: 2025-12-25 23:04:17

Command Arguments

Time of First Successful Submission: 2025-12-25 23:04:57

Command History

Time of First Successful Submission: 2025-12-25 23:05:20

The Root Path

Time of First Successful Submission: 2025-12-27 02:34:05

Absolute Paths

Time of First Successful Submission: 2025-12-27 02:34:28

Changing position

Time of First Successful Submission: 2025-12-27 02:35:37

Changing to an Absolute Path

Time of First Successful Submission: 2025-12-27 02:39:28

Relative Paths

Time of First Successful Submission: 2025-12-27 02:40:19

Cat

Time of First Successful Submission: 2025-12-27 02:43:37

Ls

Time of First Successful Submission: 2025-12-27 02:46:40

Ls All

Time of First Successful Submission: 2025-12-27 03:57:43

Find

Time of First Successful Submission: 2025-12-27 04:12:41

Piping Echo

Time of First Successful Submission: 2025-12-27 07:29:10

Piping Stdout

Time of First Successful Submission: 2025-12-27 07:29:41

Piping Stdin

Time of First Successful Submission: 2025-12-27 07:36:35

Intro to Cybersecurity

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Path Traversal 1

Time of First Successful Submission: 2025-12-22 23:09:41

Path Traversal 2

Time of First Successful Submission: 2025-12-22 23:19:31

CMDi 1

Time of First Successful Submission: 2025-12-25 22:59:20

CMDi 2

Time of First Successful Submission: 2026-03-03 06:24:26

CMDi 3

Time of First Successful Submission: 2026-03-03 06:30:01

CMDi 4

Time of First Successful Submission: 2026-03-03 06:32:56

CMDi 5

Time of First Successful Submission: 2026-03-03 07:16:10

CMDi 6

Time of First Successful Submission: 2026-03-03 07:26:05

Authentication Bypass 1

Time of First Successful Submission: 2026-03-03 07:34:50

Authentication Bypass 2

Time of First Successful Submission: 2026-03-03 07:39:13

SQLi 1

Time of First Successful Submission: 2026-03-03 19:26:14

SQLi 2

Time of First Successful Submission: 2026-03-03 19:30:35

SQLi 3

Time of First Successful Submission: 2026-03-03 19:57:48

SQLi 4

Time of First Successful Submission: 2026-03-03 20:05:38

SQLi 5

Time of First Successful Submission: 2026-03-03 20:53:21

XSS 1

Time of First Successful Submission: 2026-03-03 21:12:42

XSS 2

Time of First Successful Submission: 2026-03-04 00:12:25

XSS 3

Time of First Successful Submission: 2026-03-05 18:23:56

XSS 4

Time of First Successful Submission: 2026-03-05 18:28:37

XSS 5

Time of First Successful Submission: 2026-03-05 19:09:54

XSS 6

Time of First Successful Submission: 2026-03-06 07:17:57

XSS 7

Time of First Successful Submission: 2026-03-06 07:32:26

CSRF 1

Time of First Successful Submission: 2026-03-08 20:27:37

CSRF 2

Time of First Successful Submission: 2026-03-08 20:44:34

CSRF 3

Time of First Successful Submission: 2026-03-08 21:33:26

CSRF 4

Time of First Successful Submission: 2026-03-08 21:37:06

CSRF 5

Time of First Successful Submission: 2026-03-08 21:39:07

Connect

Time of First Successful Submission: 2026-03-08 21:41:54

Send

Time of First Successful Submission: 2026-03-09 06:42:55

Shutdown

Time of First Successful Submission: 2026-03-09 06:47:04

Listen

Time of First Successful Submission: 2026-03-09 06:47:56

Scan 1

Time of First Successful Submission: 2026-03-09 07:12:18

Scan 2

Time of First Successful Submission: 2026-03-09 19:19:46

Monitor 1

Time of First Successful Submission: 2026-03-10 03:22:55

Monitor 2

Time of First Successful Submission: 2026-03-10 03:25:22

Sniffing Cookies

Time of First Successful Submission: 2026-03-10 03:31:49

Network Configuration

Time of First Successful Submission: 2026-03-10 03:34:40

Firewall 1

Time of First Successful Submission: 2026-03-10 16:47:52

Firewall 2

Time of First Successful Submission: 2026-03-10 16:58:12

Firewall 3

Time of First Successful Submission: 2026-03-10 17:00:37

Denial of Service 1

Time of First Successful Submission: 2026-03-11 18:26:57

Denial of Service 2

Time of First Successful Submission: 2026-03-11 18:44:40

Denial of Service 3

Time of First Successful Submission: 2026-03-11 18:46:28

Ethernet

Time of First Successful Submission: 2026-03-11 19:04:11

IP

Time of First Successful Submission: 2026-03-11 19:07:46

TCP

Time of First Successful Submission: 2026-03-11 19:23:01

TCP Handshake

Time of First Successful Submission: 2026-03-12 16:29:56

UDP

Time of First Successful Submission: 2026-03-12 16:45:19

UDP 2

Time of First Successful Submission: 2026-03-12 17:10:45

UDP Spoofing 1

Time of First Successful Submission: 2026-03-12 17:17:05

UDP Spoofing 2

Time of First Successful Submission: 2026-03-12 17:23:40

UDP Spoofing 3

Time of First Successful Submission: 2026-03-12 17:47:19

UDP Spoofing 4

Time of First Successful Submission: 2026-03-12 17:51:44

ARP

Time of First Successful Submission: 2026-03-12 17:54:28

Intercept

Time of First Successful Submission: 2026-03-15 06:53:54

Man-in-the-Middle

Time of First Successful Submission: 2026-03-15 07:34:44

XOR

Time of First Successful Submission: 2026-03-05 19:15:55

XORing Hex

Time of First Successful Submission: 2026-03-05 19:24:50

XORing ASCII

Time of First Successful Submission: 2026-03-16 01:44:32

XORing ASCII Strings

Time of First Successful Submission: 2026-03-16 05:53:36

One-time Pad

Time of First Successful Submission: 2026-03-16 15:52:43

One-time Pad Tampering

Time of First Successful Submission: 2026-03-16 23:29:33

Many-time Pad

Time of First Successful Submission: 2026-03-16 23:40:37

AES

Time of First Successful Submission: 2026-03-17 02:37:15

AES-ECB-CPA

Time of First Successful Submission: 2026-04-02 04:34:36

AES-ECB-CPA-HTTP

Time of First Successful Submission: 2026-04-03 04:24:40

level1

Time of First Successful Submission: 2026-03-17 02:39:47

level2

Time of First Successful Submission: 2026-03-17 02:40:16

level3

Time of First Successful Submission: 2026-03-17 02:41:02

level4

Time of First Successful Submission: 2026-03-17 02:41:27

level5

Time of First Successful Submission: 2026-03-17 02:51:55

level6

Time of First Successful Submission: 2026-03-17 02:53:24

level7

Time of First Successful Submission: 2026-03-17 02:54:49

level8

Time of First Successful Submission: 2026-03-17 02:55:18

level9

Time of First Successful Submission: 2026-03-17 02:56:00

level10

Time of First Successful Submission: 2026-03-17 02:57:11

level11

Time of First Successful Submission: 2026-03-17 02:58:46

level12

Time of First Successful Submission: 2026-03-17 03:00:56

level13

Time of First Successful Submission: 2026-03-17 03:01:28

level14

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

level15

Time of First Successful Submission: 2026-03-17 03:02:50

level16

Time of First Successful Submission: 2026-03-17 03:04:09

level17

Time of First Successful Submission: 2026-03-17 03:07:32

level18

Time of First Successful Submission: 2026-03-17 03:09:24

level19

Time of First Successful Submission: 2026-03-17 03:15:24

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2026-03-17 14:51:17

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2026-03-17 14:52:58

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2026-03-17 15:04:37

Reading Endianness (Python)

Time of First Successful Submission: 2026-03-17 15:06:59

Reading Endianness (C)

Time of First Successful Submission: 2026-03-17 15:19:57

Reading Endianness (x86)

Time of First Successful Submission: 2026-03-17 17:31:02

Version Information (Python)

Time of First Successful Submission: 2026-03-17 17:48:15

Version Information (C)

Time of First Successful Submission: 2026-03-17 17:54:55

Version Information (x86)

Time of First Successful Submission: 2026-03-17 18:03:41

Metadata and Data (Python)

Time of First Successful Submission: 2026-03-17 18:29:28

Metadata and Data (C)

Time of First Successful Submission: 2026-03-17 18:33:54

Metadata and Data (x86)

Time of First Successful Submission: 2026-03-18 18:55:46

Input Restrictions (Python)

Time of First Successful Submission: 2026-03-18 19:00:16

Input Restrictions (C)

Time of First Successful Submission: 2026-03-18 19:02:51

Input Restrictions (x86)

Time of First Successful Submission: 2026-03-18 19:05:58

Behold the cIMG! (Python)

Time of First Successful Submission: 2026-03-18 19:13:22

Behold the cIMG! (C)

Time of First Successful Submission: 2026-03-18 19:22:13

Behold the cIMG! (x86)

Time of First Successful Submission: 2026-03-18 19:24:22

A Basic cIMG (Python)

Time of First Successful Submission: 2026-03-21 00:34:33

A Basic cIMG (C)

Time of First Successful Submission: 2026-03-21 00:36:45

A Basic cIMG (x86)

Time of First Successful Submission: 2026-03-21 03:46:18

Internal State Mini (C)

Time of First Successful Submission: 2026-03-21 21:16:40

Internal State Mini (x86)

Time of First Successful Submission: 2026-03-21 21:29:50

Internal State (C)

Time of First Successful Submission: 2026-03-23 16:45:09

Internal State (x86)

Time of First Successful Submission: 2026-03-23 17:05:28

File Formats: Directives (C)

Time of First Successful Submission: 2026-03-23 17:24:28

File Formats: Directives (x86)

Time of First Successful Submission: 2026-03-23 18:00:33

Your First Overflow (easy)

Time of First Successful Submission: 2026-03-23 18:29:07

Your First Overflow (hard)

Time of First Successful Submission: 2026-03-25 19:02:11

Precision (easy)

Time of First Successful Submission: 2026-03-25 19:05:51

Precision (hard)

Time of First Successful Submission: 2026-03-25 19:21:30

Variable Control (easy)

Time of First Successful Submission: 2026-03-26 17:08:23

Variable Control (hard)

Time of First Successful Submission: 2026-03-26 17:20:49

Control Hijack (easy)

Time of First Successful Submission: 2026-03-26 17:44:16

Control Hijack (hard)

Time of First Successful Submission: 2026-03-26 17:53:45

Tricky Control Hijack (easy)

Time of First Successful Submission: 2026-03-29 05:45:53

Tricky Control Hijack (hard)

Time of First Successful Submission: 2026-03-29 06:39:06

PIEs (easy)

Time of First Successful Submission: 2026-03-29 23:43:53

PIEs (hard)

Time of First Successful Submission: 2026-03-29 23:48:43

String Lengths (easy)

Time of First Successful Submission: 2026-03-30 00:17:21

String Lengths (hard)

Time of First Successful Submission: 2026-03-30 00:33:17

Start Here

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Using the Terminal

Time of First Successful Submission: 2025-12-22 22:50:00

Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2025-12-25 23:04:17

Intro to Arguments

Time of First Successful Submission: 2025-12-25 23:04:57

Command History

Time of First Successful Submission: 2025-12-25 23:05:20

The Root

Time of First Successful Submission: 2025-12-27 02:34:05

Program and absolute paths

Time of First Successful Submission: 2025-12-27 02:34:28

Position thy self

Time of First Successful Submission: 2025-12-27 02:35:37

Position elsewhere

Time of First Successful Submission: 2025-12-27 02:39:28

implicit relative paths, from /

Time of First Successful Submission: 2025-12-27 02:40:19

explicit relative paths, from /

Time of First Successful Submission: 2025-12-27 02:41:52

implicit relative path

Time of First Successful Submission: 2025-12-27 02:42:19

home sweet home

Time of First Successful Submission: 2025-12-27 02:43:05

cat: not the pet, but the command!

Time of First Successful Submission: 2025-12-27 02:43:37

catting absolute paths

Time of First Successful Submission: 2025-12-27 02:43:59

more catting practice

Time of First Successful Submission: 2025-12-27 02:45:18

grepping for a needle in a haystack

Time of First Successful Submission: 2025-12-27 02:45:45

comparing files

Time of First Successful Submission: 2025-12-27 02:46:14

listing files

Time of First Successful Submission: 2025-12-27 02:46:40

touching files

Time of First Successful Submission: 2025-12-27 03:48:32

removing files

Time of First Successful Submission: 2025-12-27 03:48:52

moving files

Time of First Successful Submission: 2025-12-27 03:55:38

copying files

Time of First Successful Submission: 2025-12-27 03:57:08

hidden files

Time of First Successful Submission: 2025-12-27 03:57:43

An Epic Filesystem Quest

Time of First Successful Submission: 2025-12-27 04:06:47

making directories

Time of First Successful Submission: 2025-12-27 04:07:44

finding files

Time of First Successful Submission: 2025-12-27 04:12:41

linking files

Time of First Successful Submission: 2025-12-27 06:34:34

Matching with *

Time of First Successful Submission: 2025-12-27 06:35:58

Matching with ?

Time of First Successful Submission: 2025-12-27 06:39:42

Matching with []

Time of First Successful Submission: 2025-12-27 06:40:40

Matching paths with []

Time of First Successful Submission: 2025-12-27 06:41:14

Multiple globs

Time of First Successful Submission: 2025-12-27 06:41:57

Mixing globs

Time of First Successful Submission: 2025-12-27 06:47:04

Exclusionary globbing

Time of First Successful Submission: 2025-12-27 07:26:24

Tab completion

Time of First Successful Submission: 2025-12-27 07:27:06

Multiple options for tab completion

Time of First Successful Submission: 2025-12-27 07:28:14

Tab completion on commands

Time of First Successful Submission: 2025-12-27 07:28:39

Redirecting output

Time of First Successful Submission: 2025-12-27 07:29:10

Redirecting more output

Time of First Successful Submission: 2025-12-27 07:29:41

Appending output

Time of First Successful Submission: 2025-12-27 07:30:11

Redirecting errors

Time of First Successful Submission: 2025-12-27 07:33:08

Redirecting input

Time of First Successful Submission: 2025-12-27 07:36:35

Grepping stored results

Time of First Successful Submission: 2025-12-27 07:37:25

Grepping live output

Time of First Successful Submission: 2025-12-27 07:37:52

Grepping errors

Time of First Successful Submission: 2025-12-27 07:39:11

Filtering with grep -v

Time of First Successful Submission: 2025-12-27 07:39:48

Filtering with sed

Time of First Successful Submission: 2025-12-27 07:40:36

Duplicating piped data with tee

Time of First Successful Submission: 2025-12-27 07:43:07

Process substitution for input

Time of First Successful Submission: 2025-12-27 07:45:12

Writing to multiple programs

Time of First Successful Submission: 2025-12-27 07:47:35

Split-piping stderr and stdout

Time of First Successful Submission: 2025-12-27 07:48:54

Named pipes

Time of First Successful Submission: 2025-12-27 07:51:04

Printing Variables

Time of First Successful Submission: 2025-12-27 17:47:50

Setting Variables

Time of First Successful Submission: 2025-12-27 17:48:17

Multi-word Variables

Time of First Successful Submission: 2025-12-27 17:48:40

Exporting Variables

Time of First Successful Submission: 2025-12-27 17:59:13

Printing Exported Variables

Time of First Successful Submission: 2025-12-27 17:59:59

Storing Command Output

Time of First Successful Submission: 2025-12-27 18:01:41

Reading Input

Time of First Successful Submission: 2025-12-27 18:05:33

Reading Files

Time of First Successful Submission: 2025-12-27 18:07:11

Translating characters

Time of First Successful Submission: 2025-12-27 18:09:52

Deleting characters

Time of First Successful Submission: 2025-12-27 18:10:27

Deleting newlines

Time of First Successful Submission: 2025-12-27 18:11:12

Extracting the first lines with head

Time of First Successful Submission: 2025-12-27 18:11:47

Extracting specific sections of text

Time of First Successful Submission: 2025-12-27 18:27:54

Sorting data

Time of First Successful Submission: 2025-12-27 18:28:49

Listing Processes

Time of First Successful Submission: 2025-12-27 18:29:53

Killing Processes

Time of First Successful Submission: 2025-12-27 18:30:56

Interrupting Processes

Time of First Successful Submission: 2025-12-27 18:31:15

Killing Misbehaving Processes

Time of First Successful Submission: 2025-12-27 18:32:58

Suspending Processes

Time of First Successful Submission: 2025-12-27 18:33:30

Resuming Processes

Time of First Successful Submission: 2025-12-27 18:53:53

Backgrounding Processes

Time of First Successful Submission: 2025-12-27 19:00:50

Foregrounding Processes

Time of First Successful Submission: 2025-12-27 19:03:12

Starting Backgrounded Processes

Time of First Successful Submission: 2025-12-27 19:05:22

Process Exit Codes

Time of First Successful Submission: 2025-12-27 19:05:57

Becoming root with su

Time of First Successful Submission: 2025-12-27 19:06:45

Other users with su

Time of First Successful Submission: 2025-12-27 19:07:05

Cracking passwords

Time of First Successful Submission: 2025-12-27 19:09:40

Using sudo

Time of First Successful Submission: 2025-12-27 19:09:58

Changing File Ownership

Time of First Successful Submission: 2025-12-27 20:50:03

Groups and Files

Time of First Successful Submission: 2025-12-27 20:50:23

Fun With Groups Names

Time of First Successful Submission: 2025-12-27 20:51:32

Changing Permissions

Time of First Successful Submission: 2025-12-27 20:59:04

Executable Files

Time of First Successful Submission: 2025-12-27 20:59:37

Permission Tweaking Practice

Time of First Successful Submission: 2025-12-27 21:01:39

Permissions Setting Practice

Time of First Successful Submission: 2025-12-27 21:05:19

The SUID Bit

Time of First Successful Submission: 2025-12-27 21:05:47

Chaining with Semicolons

Time of First Successful Submission: 2025-12-27 21:09:08

Building on Success

Time of First Successful Submission: 2025-12-27 21:09:30

Handling Failure

Time of First Successful Submission: 2025-12-27 21:09:47

Your First Shell Script

Time of First Successful Submission: 2025-12-27 21:11:09

Redirecting Script Output

Time of First Successful Submission: 2025-12-27 21:12:14

Executable Shell Scripts

Time of First Successful Submission: 2025-12-27 21:18:36

Understanding Shebangs

Time of First Successful Submission: 2025-12-27 21:19:28

Scripting with Arguments

Time of First Successful Submission: 2025-12-27 21:20:09

Scripting with Conditionals

Time of First Successful Submission: 2025-12-27 21:31:21

Scripting with Default Cases

Time of First Successful Submission: 2025-12-27 21:32:03

Scripting with Multiple Conditions

Time of First Successful Submission: 2025-12-27 21:33:16

Reading Shell Scripts

Time of First Successful Submission: 2025-12-27 21:33:59

Launching Screen

Time of First Successful Submission: 2025-12-27 23:52:17

Detaching and Attaching

Time of First Successful Submission: 2025-12-27 23:52:51

Finding Sessions

Time of First Successful Submission: 2025-12-27 23:53:27

Switching Windows

Time of First Successful Submission: 2025-12-28 04:51:57

Detaching and Attaching (tmux)

Time of First Successful Submission: 2025-12-28 04:54:30

Switching Windows (tmux)

Time of First Successful Submission: 2025-12-28 04:55:03

The PATH Variable

Time of First Successful Submission: 2025-12-28 04:59:50

Setting PATH

Time of First Successful Submission: 2025-12-28 05:00:19

Finding Commands

Time of First Successful Submission: 2025-12-28 05:01:30

Adding Commands

Time of First Successful Submission: 2025-12-28 05:05:39

Hijacking Commands

Time of First Successful Submission: 2025-12-28 05:08:40

Bashrc Backdoor

Time of First Successful Submission: 2025-12-28 04:57:31

Sniffing Input

Time of First Successful Submission: 2025-12-28 05:13:25

Overshared Directories

Time of First Successful Submission: 2025-12-28 05:19:05

Tricky Linking

Time of First Successful Submission: 2025-12-28 05:54:16

Sniffing Process Arguments

Time of First Successful Submission: 2025-12-28 07:37:05

Snooping on Configurations

Time of First Successful Submission: 2025-12-28 07:38:28

The Fork Bomb

Time of First Successful Submission: 2025-12-28 07:49:13

Disk-Space Doomsday

Time of First Successful Submission: 2025-12-28 07:51:02

rm -rf /

Time of First Successful Submission: 2025-12-28 07:52:56

Life after rm -rf /

Time of First Successful Submission: 2025-12-28 08:05:05

Finding meaning after rm -rf /

Time of First Successful Submission: 2025-12-28 08:07:15

Computing 101

94 / 94 38 / 21532

Your First Register

Time of First Successful Submission: 2025-12-28 18:57:21

Your First Syscall

Time of First Successful Submission: 2025-12-28 19:00:10

Exit Codes

Time of First Successful Submission: 2025-12-28 19:00:50

Building Executables

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

Moving Between Registers

Time of First Successful Submission: 2026-01-05 04:03:00

Loading From Memory

Time of First Successful Submission: 2026-02-10 07:55:29

More Loading Practice

Time of First Successful Submission: 2026-02-10 07:56:45

Dereferencing Pointers

Time of First Successful Submission: 2026-02-10 07:58:47

Dereferencing Yourself

Time of First Successful Submission: 2026-02-10 07:59:28

Dereferencing with Offsets

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

Stored Addresses

Time of First Successful Submission: 2026-02-11 19:39:51

Double Dereference

Time of First Successful Submission: 2026-02-11 19:42:12

The Stack

Time of First Successful Submission: 2026-02-20 07:11:55

Stack Offsets

Time of First Successful Submission: 2026-02-20 08:04:32

Program Arguments on the Stack

Time of First Successful Submission: 2026-02-20 08:05:07

Popping From the Stack

Time of First Successful Submission: 2026-02-20 08:06:12

Disassembling Programs

Time of First Successful Submission: 2026-02-20 08:12:36

Tracing Syscalls

Time of First Successful Submission: 2026-02-10 07:48:55

Starting GDB

Time of First Successful Submission: 2026-02-10 07:49:41

Quitting GDB

Time of First Successful Submission: 2026-02-20 08:06:53

Starting Programs in GDB

Time of First Successful Submission: 2026-02-10 07:50:28

Disassembling in GDB

Time of First Successful Submission: 2026-02-20 08:07:46

Stepping Through Instructions

Time of First Successful Submission: 2026-02-20 08:09:07

Reading Register Values

Time of First Successful Submission: 2026-02-20 08:10:07

Popping Stack Values

Time of First Successful Submission: 2026-02-20 08:11:39

Examining Memory

Time of First Successful Submission: 2026-02-20 08:14:45

Examining Stack Pointers

Time of First Successful Submission: 2026-02-20 08:15:33

Cooperative Debugging

Time of First Successful Submission: 2026-02-20 08:20:16

Writing Output

Time of First Successful Submission: 2026-02-11 19:48:52

Chaining Syscalls

Time of First Successful Submission: 2026-02-11 19:50:19

Writing Strings

Time of First Successful Submission: 2026-02-11 19:50:44

Reading Data

Time of First Successful Submission: 2026-02-11 19:53:47

Opening Files

Time of First Successful Submission: 2026-02-20 08:39:08

Hardcoding the Filename

Time of First Successful Submission: 2026-02-21 02:22:57

Comparing Values

Time of First Successful Submission: 2026-02-21 02:39:34

Comparing Characters

Time of First Successful Submission: 2026-02-21 03:16:53

Conditional Control Flow

Time of First Successful Submission: 2026-02-21 03:18:21

Comparing Strings

Time of First Successful Submission: 2026-02-21 03:24:55

Reverse the Password

Time of First Successful Submission: 2026-02-21 03:27:13

Conditionals Without Conditionals

Time of First Successful Submission: 2026-02-21 03:36:00

Looping

Time of First Successful Submission: 2026-02-21 03:38:15

Reverse the Calculation

Time of First Successful Submission: 2026-02-21 04:48:42

Reverse the Reverse

Time of First Successful Submission: 2026-02-21 04:49:19

Dealing with Bitwise Operations

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

Loops on Data

Time of First Successful Submission: 2026-02-21 04:55:13

set-register

Time of First Successful Submission: 2026-02-11 19:58:13

set-multiple-registers

Time of First Successful Submission: 2026-02-11 20:00:06

add-to-register

Time of First Successful Submission: 2026-02-11 20:14:31

linear-equation-registers

Time of First Successful Submission: 2026-02-11 20:15:55

integer-division

Time of First Successful Submission: 2026-02-11 20:21:36

modulo-operation

Time of First Successful Submission: 2026-02-12 19:00:40

set-upper-byte

Time of First Successful Submission: 2026-02-12 19:26:58

efficient-modulo

Time of First Successful Submission: 2026-02-12 19:33:36

byte-extraction

Time of First Successful Submission: 2026-02-12 19:39:35

bitwise-and

Time of First Successful Submission: 2026-02-12 19:44:14

check-even

Time of First Successful Submission: 2026-02-15 07:42:43

memory-read

Time of First Successful Submission: 2026-02-15 07:44:03

memory-write

Time of First Successful Submission: 2026-02-15 07:44:28

memory-increment

Time of First Successful Submission: 2026-02-15 07:48:23

byte-access

Time of First Successful Submission: 2026-02-15 07:49:34

memory-size-access

Time of First Successful Submission: 2026-02-15 07:51:52

little-endian-write

Time of First Successful Submission: 2026-02-15 08:51:20

memory-sum

Time of First Successful Submission: 2026-02-15 08:59:46

stack-subtraction

Time of First Successful Submission: 2026-02-15 09:01:01

swap-stack-values

Time of First Successful Submission: 2026-02-15 20:17:33

average-stack-values

Time of First Successful Submission: 2026-02-15 20:39:36

absolute-jump

Time of First Successful Submission: 2026-02-15 20:52:23

relative-jump

Time of First Successful Submission: 2026-02-16 01:19:47

jump-trampoline

Time of First Successful Submission: 2026-02-16 02:13:38

conditional-jump

Time of First Successful Submission: 2026-02-16 08:36:22

indirect-jump

Time of First Successful Submission: 2026-02-16 08:52:50

average-loop

Time of First Successful Submission: 2026-02-16 19:17:53

count-non-zero

Time of First Successful Submission: 2026-02-16 19:39:24

string-lower

Time of First Successful Submission: 2026-02-16 20:24:34

most-common-byte

Time of First Successful Submission: 2026-02-17 07:22:10

Exit

Time of First Successful Submission: 2026-02-21 04:59:18

Socket

Time of First Successful Submission: 2026-02-21 05:37:10

Bind

Time of First Successful Submission: 2026-02-21 06:39:42

Listen

Time of First Successful Submission: 2026-02-21 06:57:45

Accept

Time of First Successful Submission: 2026-02-21 07:04:36

Static Response

Time of First Successful Submission: 2026-02-21 07:31:49

Dynamic Response

Time of First Successful Submission: 2026-02-21 21:12:33

Iterative GET Server

Time of First Successful Submission: 2026-02-21 21:27:08

Concurrent GET Server

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

Concurrent POST Server

Time of First Successful Submission: 2026-02-22 07:38:40

Web Server

Time of First Successful Submission: 2026-02-22 07:42:09

Debugging Programs

Time of First Successful Submission: 2026-02-17 07:29:05

Inspecting Registers

Time of First Successful Submission: 2026-02-17 07:30:12

Examining Memory

Time of First Successful Submission: 2026-02-18 06:57:43

Setting Breakpoints

Time of First Successful Submission: 2026-02-18 08:39:21

GDB Scripting

Time of First Successful Submission: 2026-02-19 20:14:44

Modifying Data

Time of First Successful Submission: 2026-02-20 06:38:11

Modifying Execution

Time of First Successful Submission: 2026-02-20 06:48:56

Broken Functions

Time of First Successful Submission: 2026-02-20 07:07:19

Playing With Programs

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What's the password?

Time of First Successful Submission: 2026-02-22 07:45:32

... and again!

Time of First Successful Submission: 2026-02-22 07:45:56

Newline Troubles

Time of First Successful Submission: 2026-02-22 07:54:35

Reasoning about files

Time of First Successful Submission: 2026-02-22 07:58:36

Specifying Filenames

Time of First Successful Submission: 2026-02-22 08:02:10

Binary and Hex Encoding

Time of First Successful Submission: 2026-02-22 08:04:19

More Hex

Time of First Successful Submission: 2026-02-22 08:05:02

Decoding Hex

Time of First Successful Submission: 2026-02-22 08:44:58

Decoding Practice

Time of First Successful Submission: 2026-02-22 08:52:43

Encoding Practice

Time of First Successful Submission: 2026-02-22 08:59:53

Hex-encoding ASCII

Time of First Successful Submission: 2026-02-22 22:07:58

Nested Encoding

Time of First Successful Submission: 2026-02-22 22:12:32

Hex-encoding UTF-8

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

UTF Mixups

Time of First Successful Submission: 2026-02-22 22:24:47

Modifying Encoded Data

Time of First Successful Submission: 2026-02-22 22:48:26

Decoding Base64

Time of First Successful Submission: 2026-02-22 22:57:42

Encoding Base64

Time of First Successful Submission: 2026-02-22 22:59:21

Dealing with Obfuscation

Time of First Successful Submission: 2026-02-22 23:03:45

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-02-22 23:18:12

Your First HTTP Request

Time of First Successful Submission: 2026-02-23 20:20:50

Reading Flask

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

Commented Data

Time of First Successful Submission: 2026-02-23 20:28:15

HTTP Metadata

Time of First Successful Submission: 2026-02-24 01:15:15

HTTP (netcat)

Time of First Successful Submission: 2026-02-24 01:26:40

HTTP Paths (netcat)

Time of First Successful Submission: 2026-02-24 01:52:46

HTTP (curl)

Time of First Successful Submission: 2026-02-24 01:57:26

HTTP (python)

Time of First Successful Submission: 2026-02-24 02:03:16

HTTP Host Header (python)

Time of First Successful Submission: 2026-02-24 02:13:42

HTTP Host Header (curl)

Time of First Successful Submission: 2026-02-24 18:55:41

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-02-28 03:00:07

URL Encoding (netcat)

Time of First Successful Submission: 2026-02-28 03:37:33

HTTP GET Parameters

Time of First Successful Submission: 2026-03-01 07:28:46

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-03-01 07:35:40

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-03-01 07:38:45

HTTP Forms

Time of First Successful Submission: 2026-03-01 07:41:58

HTTP Forms (curl)

Time of First Successful Submission: 2026-03-01 07:42:45

HTTP Forms (netcat)

Time of First Successful Submission: 2026-03-01 08:04:31

HTTP Forms (python)

Time of First Successful Submission: 2026-03-01 08:08:17

HTTP Forms Without Forms

Time of First Successful Submission: 2026-03-01 08:11:11

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-03-01 08:15:17

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-03-01 08:53:11

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-03-01 08:55:54

HTTP Redirects (curl)

Time of First Successful Submission: 2026-03-01 08:57:41

HTTP Redirects (python)

Time of First Successful Submission: 2026-03-01 08:59:55

HTTP Cookies (curl)

Time of First Successful Submission: 2026-03-01 09:04:23

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-03-01 09:06:53

HTTP Cookies (python)

Time of First Successful Submission: 2026-03-01 09:08:10

Server State (python)

Time of First Successful Submission: 2026-03-01 09:10:13

Listening Web

Time of First Successful Submission: 2026-03-01 09:15:21

Speaking Redirects

Time of First Successful Submission: 2026-03-01 09:21:28

JavaScript Redirects

Time of First Successful Submission: 2026-03-01 18:41:58

Including JavaScript

Time of First Successful Submission: 2026-03-01 18:46:17

HTTP (javascript)

Time of First Successful Submission: 2026-03-01 18:54:32

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-03-01 19:07:47

HTTP Forms (javascript)

Time of First Successful Submission: 2026-03-01 19:05:46

cat

Time of First Successful Submission: 2026-03-01 19:09:02

more

Time of First Successful Submission: 2026-03-01 19:09:17

less

Time of First Successful Submission: 2026-03-01 19:09:33

tail

Time of First Successful Submission: 2026-03-01 19:09:55

head

Time of First Successful Submission: 2026-03-01 19:10:08

sort

Time of First Successful Submission: 2026-03-01 19:10:22

vim

Time of First Successful Submission: 2026-03-01 19:10:43

emacs

Time of First Successful Submission: 2026-03-01 19:11:03

nano

Time of First Successful Submission: 2026-03-01 19:11:19

rev

Time of First Successful Submission: 2026-03-01 19:11:37

od

Time of First Successful Submission: 2026-03-01 19:15:47

hd

Time of First Successful Submission: 2026-03-01 19:17:35

xxd

Time of First Successful Submission: 2026-03-01 19:18:09

base32

Time of First Successful Submission: 2026-03-01 19:19:06

base64

Time of First Successful Submission: 2026-03-01 19:19:26

split

Time of First Successful Submission: 2026-03-01 19:21:23

gzip

Time of First Successful Submission: 2026-03-01 19:28:00

bzip2

Time of First Successful Submission: 2026-03-01 19:28:34

zip

Time of First Successful Submission: 2026-03-01 19:29:18

tar

Time of First Successful Submission: 2026-03-01 19:33:00

ar

Time of First Successful Submission: 2026-03-01 19:35:30

cpio

Time of First Successful Submission: 2026-03-01 19:37:12

genisoimage

Time of First Successful Submission: 2026-03-01 20:13:19

env

Time of First Successful Submission: 2026-03-01 20:13:35

find

Time of First Successful Submission: 2026-03-01 20:15:57

make

Time of First Successful Submission: 2026-03-01 20:16:17

nice

Time of First Successful Submission: 2026-03-01 20:17:13

timeout

Time of First Successful Submission: 2026-03-01 20:17:27

stdbuf

Time of First Successful Submission: 2026-03-01 20:17:45

setarch

Time of First Successful Submission: 2026-03-01 20:18:10

watch

Time of First Successful Submission: 2026-03-01 20:18:54

socat

Time of First Successful Submission: 2026-03-01 20:19:14

whiptail

Time of First Successful Submission: 2026-03-01 20:20:44

awk

Time of First Successful Submission: 2026-03-01 20:21:02

sed

Time of First Successful Submission: 2026-03-01 20:21:15

ed

Time of First Successful Submission: 2026-03-01 20:21:44

chown

Time of First Successful Submission: 2026-03-01 20:22:01

chmod

Time of First Successful Submission: 2026-03-01 20:22:18

cp

Time of First Successful Submission: 2026-03-01 20:24:15

mv

Time of First Successful Submission: 2026-03-01 20:56:07

perl

Time of First Successful Submission: 2026-03-01 20:56:54

python

Time of First Successful Submission: 2026-03-01 20:57:12

ruby

Time of First Successful Submission: 2026-03-01 20:57:53

bash

Time of First Successful Submission: 2026-03-01 20:58:10

date

Time of First Successful Submission: 2026-03-01 20:58:30

dmesg

Time of First Successful Submission: 2026-03-01 20:58:43

wc

Time of First Successful Submission: 2026-03-01 20:59:01

gcc

Time of First Successful Submission: 2026-03-01 20:59:17

as

Time of First Successful Submission: 2026-03-01 20:59:33

wget

Time of First Successful Submission: 2026-03-01 21:00:01

ssh-keygen

Time of First Successful Submission: 2026-03-01 21:03:30

SQL Queries

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

Filtering SQL

Time of First Successful Submission: 2026-03-02 08:11:42

Choosing Columns

Time of First Successful Submission: 2026-03-02 08:34:59

Exclusionary Filtering

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

Filtering Strings

Time of First Successful Submission: 2026-03-02 09:02:59

Filtering on Expressions

Time of First Successful Submission: 2026-03-02 09:11:05

SELECTing Expressions

Time of First Successful Submission: 2026-03-02 19:57:29

Composite Conditions

Time of First Successful Submission: 2026-03-02 20:45:45

Reaching Your LIMITs

Time of First Successful Submission: 2026-03-02 20:48:17

Querying Metadata

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

GCA CTF

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Using the Terminal

Time of First Successful Submission: 2025-12-22 22:50:00

Pwntools Tutorials

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Level 0.0

Time of First Successful Submission: 2025-12-24 18:01:45

Level 1.0

Time of First Successful Submission: 2025-12-24 18:12:16

Level 1.1

Time of First Successful Submission: 2025-12-24 18:20:27

Level 2.0

Time of First Successful Submission: 2025-12-24 18:48:57

Level 2.1

Time of First Successful Submission: 2025-12-24 18:56:28

Level 2.2

Time of First Successful Submission: 2025-12-25 04:46:50

Level 2.3

Time of First Successful Submission: 2025-12-25 04:50:17

Level 2.4

Time of First Successful Submission: 2025-12-25 04:54:39

Level 2.5

Time of First Successful Submission: 2025-12-25 04:57:44

Level 2.6

Time of First Successful Submission: 2025-12-25 04:59:53

Level 3.0

Time of First Successful Submission: 2025-12-25 05:24:30

Level 4.0

Time of First Successful Submission: 2025-12-25 06:06:56