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38 / 201 3093 / 16678

level1

Time of First Successful Submission: 2022-08-03 02:49:11

level2

Time of First Successful Submission: 2022-08-03 02:49:48

level3

Time of First Successful Submission: 2022-07-10 14:27:26

level4

Time of First Successful Submission: 2022-07-10 14:28:30

level5

Time of First Successful Submission: 2022-07-10 14:30:11

level6

Time of First Successful Submission: 2022-07-10 14:30:46

level7

Time of First Successful Submission: 2022-07-10 15:00:55

level8

Time of First Successful Submission: 2022-08-03 02:51:21

level9

Time of First Successful Submission: 2022-08-15 14:54:30

level10

Time of First Successful Submission: 2022-08-15 14:56:09

level11

Time of First Successful Submission: 2022-08-15 14:58:22

level19

Time of First Successful Submission: 2022-07-10 23:47:26

level32

Time of First Successful Submission: 2022-07-11 00:10:19

level34

Time of First Successful Submission: 2022-07-11 00:15:27

level37

Time of First Successful Submission: 2022-07-11 00:17:14

level38

Time of First Successful Submission: 2022-07-11 00:19:58

level39

Time of First Successful Submission: 2022-07-11 00:21:09

level48

Time of First Successful Submission: 2022-07-11 02:52:38

level63

Time of First Successful Submission: 2022-07-11 12:15:44

level64

Time of First Successful Submission: 2022-07-11 12:33:54

level66

Time of First Successful Submission: 2022-07-11 13:09:29

level68

Time of First Successful Submission: 2022-07-11 13:37:00

level70

Time of First Successful Submission: 2022-07-11 14:09:03

level73

Time of First Successful Submission: 2022-07-11 14:16:16

level89

Time of First Successful Submission: 2022-07-11 14:19:27

level90

Time of First Successful Submission: 2022-07-11 14:30:34

level92

Time of First Successful Submission: 2022-07-11 23:46:43

level93

Time of First Successful Submission: 2022-07-12 00:11:06

level94

Time of First Successful Submission: 2022-07-12 00:23:10

level97

Time of First Successful Submission: 2022-07-12 00:28:36

level107

Time of First Successful Submission: 2022-07-12 04:29:25

level126

Time of First Successful Submission: 2022-07-12 06:45:48

level134

Time of First Successful Submission: 2022-07-12 07:06:56

level139

Time of First Successful Submission: 2022-07-12 07:20:36

level140

Time of First Successful Submission: 2022-07-12 08:48:33

level142

Time of First Successful Submission: 2022-07-12 09:54:39

Logical License (Hard)

Time of First Successful Submission: 2022-07-08 13:05:51

Modest Mangler (Hard)

Time of First Successful Submission: 2022-07-09 06:36:14

Intro to Programming Languages

15 / 234 1591 / 28130

Commands

Time of First Successful Submission: 2025-06-30 09:36:08

Command Arguments

Time of First Successful Submission: 2025-06-30 09:37:26

Command History

Time of First Successful Submission: 2025-06-30 09:38:00

The Root Path

Time of First Successful Submission: 2025-06-30 09:39:42

Absolute Paths

Time of First Successful Submission: 2025-06-30 09:41:21

Changing position

Time of First Successful Submission: 2025-06-30 09:42:56

Changing to an Absolute Path

Time of First Successful Submission: 2025-06-30 09:44:00

Relative Paths

Time of First Successful Submission: 2025-06-30 10:06:30

Cat

Time of First Successful Submission: 2025-06-30 10:15:19

Ls

Time of First Successful Submission: 2025-06-30 10:40:11

Ls All

Time of First Successful Submission: 2025-06-30 10:42:49

Find

Time of First Successful Submission: 2025-06-30 12:29:44

Piping Echo

Time of First Successful Submission: 2025-07-03 02:42:44

Piping Stdout

Time of First Successful Submission: 2025-07-03 02:43:41

Piping Stdin

Time of First Successful Submission: 2025-07-03 02:48:50

Intro to Cybersecurity

183 / 183 112 / 17893

Path Traversal 1

Time of First Successful Submission: 2025-07-12 09:42:45

Path Traversal 2

Time of First Successful Submission: 2025-07-12 13:56:36

CMDi 1

Time of First Successful Submission: 2025-07-13 02:03:48

CMDi 2

Time of First Successful Submission: 2025-07-13 02:11:32

CMDi 3

Time of First Successful Submission: 2025-07-13 02:15:09

CMDi 4

Time of First Successful Submission: 2025-07-13 02:20:16

CMDi 5

Time of First Successful Submission: 2025-07-13 02:23:13

CMDi 6

Time of First Successful Submission: 2025-07-13 03:24:14

Authentication Bypass 1

Time of First Successful Submission: 2025-07-13 03:28:12

Authentication Bypass 2

Time of First Successful Submission: 2025-07-13 03:29:17

SQLi 1

Time of First Successful Submission: 2025-07-13 03:37:10

SQLi 2

Time of First Successful Submission: 2025-07-13 03:43:01

SQLi 3

Time of First Successful Submission: 2025-07-13 04:21:06

SQLi 4

Time of First Successful Submission: 2025-07-13 04:30:44

SQLi 5

Time of First Successful Submission: 2025-07-13 04:43:08

XSS 1

Time of First Successful Submission: 2025-07-13 04:51:45

XSS 2

Time of First Successful Submission: 2025-07-13 04:56:05

XSS 3

Time of First Successful Submission: 2025-07-13 04:59:33

XSS 4

Time of First Successful Submission: 2025-07-13 05:05:03

XSS 5

Time of First Successful Submission: 2025-07-13 05:22:10

XSS 6

Time of First Successful Submission: 2025-07-13 05:24:37

XSS 7

Time of First Successful Submission: 2025-07-13 05:47:46

CSRF 1

Time of First Successful Submission: 2025-07-21 04:23:56

CSRF 2

Time of First Successful Submission: 2025-07-21 04:37:51

CSRF 3

Time of First Successful Submission: 2025-07-21 05:03:57

CSRF 4

Time of First Successful Submission: 2025-07-21 05:21:10

CSRF 5

Time of First Successful Submission: 2025-07-21 05:27:52

Connect

Time of First Successful Submission: 2025-07-21 07:12:48

Send

Time of First Successful Submission: 2025-07-21 07:14:47

Shutdown

Time of First Successful Submission: 2025-07-21 07:24:50

Listen

Time of First Successful Submission: 2025-07-21 07:25:58

Scan 1

Time of First Successful Submission: 2025-07-21 07:49:32

Scan 2

Time of First Successful Submission: 2025-07-21 08:07:04

Monitor 1

Time of First Successful Submission: 2025-07-21 08:13:25

Monitor 2

Time of First Successful Submission: 2025-07-21 08:18:04

Sniffing Cookies

Time of First Successful Submission: 2025-07-21 08:24:06

Network Configuration

Time of First Successful Submission: 2025-07-21 08:27:38

Firewall 1

Time of First Successful Submission: 2025-07-21 08:33:07

Firewall 2

Time of First Successful Submission: 2025-07-21 08:34:13

Firewall 3

Time of First Successful Submission: 2025-07-21 08:35:33

Denial of Service 1

Time of First Successful Submission: 2025-07-21 08:39:17

Denial of Service 2

Time of First Successful Submission: 2025-07-21 08:42:58

Denial of Service 3

Time of First Successful Submission: 2025-07-21 10:03:51

Ethernet

Time of First Successful Submission: 2025-07-22 02:36:53

IP

Time of First Successful Submission: 2025-07-22 02:38:12

TCP

Time of First Successful Submission: 2025-07-22 02:39:04

TCP Handshake

Time of First Successful Submission: 2025-07-22 02:53:15

UDP

Time of First Successful Submission: 2025-07-22 03:08:26

UDP 2

Time of First Successful Submission: 2025-07-22 03:18:17

UDP Spoofing 1

Time of First Successful Submission: 2025-07-22 03:21:40

UDP Spoofing 2

Time of First Successful Submission: 2025-07-22 03:27:22

UDP Spoofing 3

Time of First Successful Submission: 2025-07-22 03:46:12

UDP Spoofing 4

Time of First Successful Submission: 2025-07-22 03:57:37

ARP

Time of First Successful Submission: 2025-07-22 04:25:04

Intercept

Time of First Successful Submission: 2025-07-22 06:20:57

Man-in-the-Middle

Time of First Successful Submission: 2025-07-22 08:02:52

XOR

Time of First Successful Submission: 2025-07-25 04:20:17

XORing Hex

Time of First Successful Submission: 2025-07-25 04:43:29

XORing ASCII

Time of First Successful Submission: 2025-07-25 05:07:07

XORing ASCII Strings

Time of First Successful Submission: 2025-07-25 08:17:39

One-time Pad

Time of First Successful Submission: 2025-07-25 08:22:59

One-time Pad Tampering

Time of First Successful Submission: 2025-07-25 08:33:14

Many-time Pad

Time of First Successful Submission: 2025-07-25 08:42:28

AES

Time of First Successful Submission: 2025-07-25 09:05:27

AES-ECB-CPA

Time of First Successful Submission: 2025-07-25 09:33:33

AES-ECB-CPA-HTTP

Time of First Successful Submission: 2025-07-25 13:45:50

AES-ECB-CPA-HTTP (base64)

Time of First Successful Submission: 2025-07-25 14:09:57

AES-ECB-CPA-Suffix

Time of First Successful Submission: 2025-07-27 02:59:11

AES-ECB-CPA-Prefix

Time of First Successful Submission: 2025-07-27 03:54:47

AES-ECB-CPA-Prefix-2

Time of First Successful Submission: 2025-07-27 04:08:10

AES-ECB-CPA-Prefix-Miniboss

Time of First Successful Submission: 2025-07-27 04:16:43

AES-ECB-CPA-Prefix-Boss

Time of First Successful Submission: 2025-07-27 05:41:43

AES-CBC

Time of First Successful Submission: 2025-07-27 13:22:38

AES-CBC Tampering

Time of First Successful Submission: 2025-07-28 09:54:01

AES-CBC Resizing

Time of First Successful Submission: 2025-07-28 10:05:54

AES-CBC-POA-Partial-Block

Time of First Successful Submission: 2025-07-29 02:31:30

AES-CBC-POA-Full-Block

Time of First Successful Submission: 2025-07-29 04:43:13

AES-CBC-POA-Multi-Block

Time of First Successful Submission: 2025-07-29 05:11:25

AES-CBC-POA-Encrypt

Time of First Successful Submission: 2025-07-29 11:42:00

AES-CBC-POA-Encrypt-2

Time of First Successful Submission: 2025-09-07 06:13:46

DHKE

Time of First Successful Submission: 2025-09-07 06:28:27

DHKE-to-AES

Time of First Successful Submission: 2025-09-07 06:39:39

RSA 1

Time of First Successful Submission: 2025-09-07 06:56:37

RSA 2

Time of First Successful Submission: 2025-09-07 07:03:00

RSA 3

Time of First Successful Submission: 2025-09-07 07:10:51

RSA 4

Time of First Successful Submission: 2025-09-07 07:24:09

RSA Signatures

Time of First Successful Submission: 2025-09-07 12:08:56

SHA 1

Time of First Successful Submission: 2025-09-08 14:10:40

SHA 2

Time of First Successful Submission: 2025-09-08 14:15:15

TLS 1

Time of First Successful Submission: 2025-09-09 12:45:32

TLS 2

Time of First Successful Submission: 2025-09-11 12:20:32

level1

Time of First Successful Submission: 2025-09-09 12:55:46

level2

Time of First Successful Submission: 2025-09-09 12:57:40

level3

Time of First Successful Submission: 2025-09-11 12:24:43

level4

Time of First Successful Submission: 2025-09-11 12:26:30

level5

Time of First Successful Submission: 2025-09-11 12:29:58

level6

Time of First Successful Submission: 2025-09-11 12:37:49

level7

Time of First Successful Submission: 2025-09-11 12:40:34

level8

Time of First Successful Submission: 2025-09-11 12:44:09

level9

Time of First Successful Submission: 2025-09-11 12:45:50

level10

Time of First Successful Submission: 2025-09-12 07:58:27

level11

Time of First Successful Submission: 2025-09-20 08:02:37

level12

Time of First Successful Submission: 2025-09-20 08:04:49

level13

Time of First Successful Submission: 2025-09-20 08:05:36

level14

Time of First Successful Submission: 2025-09-20 08:20:36

level15

Time of First Successful Submission: 2025-09-20 08:32:25

level16

Time of First Successful Submission: 2025-09-20 08:32:41

level17

Time of First Successful Submission: 2025-09-20 08:36:50

level18

Time of First Successful Submission: 2025-09-20 08:37:06

level19

Time of First Successful Submission: 2025-09-20 08:38:08

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2025-09-23 12:08:56

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2025-09-23 12:19:46

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2025-09-23 12:47:24

Reading Endianness (Python)

Time of First Successful Submission: 2025-09-23 12:49:34

Reading Endianness (C)

Time of First Successful Submission: 2025-09-23 12:50:05

Reading Endianness (x86)

Time of First Successful Submission: 2025-09-23 12:51:32

Version Information (Python)

Time of First Successful Submission: 2025-09-23 12:58:51

Version Information (C)

Time of First Successful Submission: 2025-09-24 04:33:15

Version Information (x86)

Time of First Successful Submission: 2025-09-24 04:38:59

Metadata and Data (Python)

Time of First Successful Submission: 2025-09-24 04:48:18

Metadata and Data (C)

Time of First Successful Submission: 2025-09-24 04:49:57

Metadata and Data (x86)

Time of First Successful Submission: 2025-09-24 04:55:58

Input Restrictions (Python)

Time of First Successful Submission: 2025-09-26 05:52:57

Input Restrictions (C)

Time of First Successful Submission: 2025-09-26 06:52:17

Input Restrictions (x86)

Time of First Successful Submission: 2025-10-08 10:14:15

Behold the cIMG! (Python)

Time of First Successful Submission: 2025-10-08 10:17:40

Behold the cIMG! (C)

Time of First Successful Submission: 2025-10-08 10:19:14

Behold the cIMG! (x86)

Time of First Successful Submission: 2025-10-08 10:42:34

A Basic cIMG (Python)

Time of First Successful Submission: 2025-10-08 11:00:20

A Basic cIMG (C)

Time of First Successful Submission: 2025-10-08 11:01:31

A Basic cIMG (x86)

Time of First Successful Submission: 2025-10-08 11:19:06

Internal State Mini (C)

Time of First Successful Submission: 2025-10-08 12:25:59

Internal State Mini (x86)

Time of First Successful Submission: 2025-10-08 14:34:40

Internal State (C)

Time of First Successful Submission: 2025-10-09 00:26:57

Internal State (x86)

Time of First Successful Submission: 2025-10-09 00:45:58

File Formats: Directives (C)

Time of First Successful Submission: 2025-10-09 00:57:04

File Formats: Directives (x86)

Time of First Successful Submission: 2025-10-09 01:00:06

The Patch Directive

Time of First Successful Submission: 2025-10-09 10:59:23

Optimizing for Space

Time of First Successful Submission: 2025-10-10 05:49:47

Tweaking Images

Time of First Successful Submission: 2025-10-10 06:56:17

Storage and Retrieval

Time of First Successful Submission: 2025-10-24 07:09:25

Extracting Knowledge

Time of First Successful Submission: 2025-10-24 07:39:02

Advanced Sprites

Time of First Successful Submission: 2025-11-13 01:09:29

Accessing Resources

Time of First Successful Submission: 2025-11-13 01:27:04

Unsafe Animations

Time of First Successful Submission: 2025-11-13 01:34:46

Animations

Time of First Successful Submission: 2025-11-15 08:44:08

Interoperability: Patching Data

Time of First Successful Submission: 2025-11-15 12:59:36

Patching Code

Time of First Successful Submission: 2025-11-20 00:25:30

Patching Control Flow

Time of First Successful Submission: 2025-11-20 00:33:03

Your First Overflow (easy)

Time of First Successful Submission: 2025-11-20 10:59:33

Your First Overflow (hard)

Time of First Successful Submission: 2025-11-20 11:01:40

Precision (easy)

Time of First Successful Submission: 2025-11-20 11:06:27

Precision (hard)

Time of First Successful Submission: 2025-11-20 11:13:11

Variable Control (easy)

Time of First Successful Submission: 2025-11-20 11:35:15

Variable Control (hard)

Time of First Successful Submission: 2025-11-20 11:38:56

Control Hijack (easy)

Time of First Successful Submission: 2025-11-21 05:35:08

Control Hijack (hard)

Time of First Successful Submission: 2025-11-21 05:36:40

Tricky Control Hijack (easy)

Time of First Successful Submission: 2025-11-21 05:40:43

Tricky Control Hijack (hard)

Time of First Successful Submission: 2025-11-21 05:42:10

PIEs (easy)

Time of First Successful Submission: 2025-11-21 05:54:56

PIEs (hard)

Time of First Successful Submission: 2025-11-21 06:09:41

String Lengths (easy)

Time of First Successful Submission: 2025-11-21 06:22:24

String Lengths (hard)

Time of First Successful Submission: 2025-11-21 06:24:09

Basic Shellcode

Time of First Successful Submission: 2025-11-23 08:36:49

NOP Sleds

Time of First Successful Submission: 2025-11-23 08:59:38

NULL-Free Shellcode

Time of First Successful Submission: 2025-11-23 09:15:24

Hijack to (Mapped) Shellcode (easy)

Time of First Successful Submission: 2025-11-23 11:11:52

Hijack to (Mapped) Shellcode (hard)

Time of First Successful Submission: 2025-11-23 11:19:55

Hijack to Shellcode (easy)

Time of First Successful Submission: 2025-11-23 11:30:10

Hijack to Shellcode (hard)

Time of First Successful Submission: 2025-11-23 12:16:23

ECB-to-Win (easy)

Time of First Successful Submission: 2025-11-24 01:59:31

ECB-to-Win (hard)

Time of First Successful Submission: 2025-11-24 02:00:54

ECB-to-Shellcode (easy)

Time of First Successful Submission: 2025-11-24 02:44:54

ECB-to-Shellcode (hard)

Time of First Successful Submission: 2025-11-24 04:05:03

CIMG Screenshots

Time of First Successful Submission: 2025-12-07 02:35:30

CIMG Screenshots 2

Time of First Successful Submission: 2025-12-07 03:03:58

Wily Webserver

Time of First Successful Submission: 2025-12-07 14:00:38

The Watering Hole

Time of First Successful Submission: 2025-12-11 01:20:21

Secure Chat 1

Time of First Successful Submission: 2025-12-15 03:03:44

Secure Chat 2

Time of First Successful Submission: 2025-12-18 09:35:04

Secure Chat 3

Time of First Successful Submission: 2025-12-25 07:27:58

Secure Chat 4

Time of First Successful Submission: 2025-12-25 07:54:00

Secure Chat 5

Time of First Successful Submission: 2025-12-25 15:08:22

Program Security

16 / 162 3513 / 9030

ello ackers!

Time of First Successful Submission: 2026-01-22 07:45:44

Syscall Smuggler

Time of First Successful Submission: 2026-01-22 07:53:33

Syscall Shenanigans

Time of First Successful Submission: 2026-01-22 08:33:36

Byte Budget

Time of First Successful Submission: 2026-01-22 11:25:25

ClobberCode

Time of First Successful Submission: 2026-01-22 11:47:42

Tangled Ticket (Hard)

Time of First Successful Submission: 2022-07-08 12:51:45

Meager Mangler (Hard)

Time of First Successful Submission: 2022-07-09 05:00:27

Patched Up (Hard)

Time of First Successful Submission: 2022-07-09 09:10:59

Patch Perfect (Hard)

Time of First Successful Submission: 2022-07-09 09:25:58

Trust the Yancode (Easy)

Time of First Successful Submission: 2022-07-10 06:06:29

Trust the Yancode (Hard)

Time of First Successful Submission: 2022-07-10 06:50:59

Master the Yancode (Easy)

Time of First Successful Submission: 2022-07-10 08:21:42

Master the Yancode (Hard)

Time of First Successful Submission: 2022-07-10 08:32:57

The Yanalyzer (Easy)

Time of First Successful Submission: 2022-07-23 12:47:34

The Yanalyzer (Hard)

Time of First Successful Submission: 2022-07-23 13:24:02

Yancraft (Easy)

Time of First Successful Submission: 2022-07-23 14:36:59

Start Here

11 / 12 1351 / 38369

Using the Terminal

Time of First Successful Submission: 2025-08-10 13:02:34

Using the VSCode Workspace

Time of First Successful Submission: 2025-06-30 09:05:44

Using the GUI Desktop

Time of First Successful Submission: 2025-06-30 09:07:07

Pasting into the Desktop

Time of First Successful Submission: 2025-06-30 09:07:56

Restarting Challenges

Time of First Successful Submission: 2025-06-30 09:09:35

Challenge Programs

Time of First Successful Submission: 2025-06-30 09:17:02

The Flag File

Time of First Successful Submission: 2025-06-30 09:23:05

Using Privileged Mode

Time of First Successful Submission: 2025-06-30 09:24:34

Persistent Home Directories - One

Time of First Successful Submission: 2025-06-30 09:27:01

Persistent Home Directories - Two

Time of First Successful Submission: 2025-06-30 09:26:41

Linux Luminarium

128 / 128 299 / 28374

Intro to Commands

Time of First Successful Submission: 2025-06-30 09:36:08

Intro to Arguments

Time of First Successful Submission: 2025-06-30 09:37:26

Command History

Time of First Successful Submission: 2025-06-30 09:38:00

The Root

Time of First Successful Submission: 2025-06-30 09:39:42

Program and absolute paths

Time of First Successful Submission: 2025-06-30 09:41:21

Position thy self

Time of First Successful Submission: 2025-06-30 09:42:56

Position elsewhere

Time of First Successful Submission: 2025-06-30 09:44:00

implicit relative paths, from /

Time of First Successful Submission: 2025-06-30 10:06:30

explicit relative paths, from /

Time of First Successful Submission: 2025-06-30 10:07:55

implicit relative path

Time of First Successful Submission: 2025-06-30 10:09:32

home sweet home

Time of First Successful Submission: 2025-06-30 10:12:17

cat: not the pet, but the command!

Time of First Successful Submission: 2025-06-30 10:15:19

catting absolute paths

Time of First Successful Submission: 2025-06-30 10:15:55

more catting practice

Time of First Successful Submission: 2025-06-30 10:37:39

grepping for a needle in a haystack

Time of First Successful Submission: 2025-06-30 10:38:57

comparing files

Time of First Successful Submission: 2025-07-27 04:54:43

listing files

Time of First Successful Submission: 2025-06-30 10:40:11

touching files

Time of First Successful Submission: 2025-06-30 10:40:48

removing files

Time of First Successful Submission: 2025-06-30 10:41:05

moving files

Time of First Successful Submission: 2025-06-30 10:42:10

copying files

Time of First Successful Submission: 2025-11-13 00:08:56

hidden files

Time of First Successful Submission: 2025-06-30 10:42:49

An Epic Filesystem Quest

Time of First Successful Submission: 2025-06-30 10:46:26

making directories

Time of First Successful Submission: 2025-06-30 10:47:12

finding files

Time of First Successful Submission: 2025-06-30 12:29:44

linking files

Time of First Successful Submission: 2025-06-30 12:56:13

Learning From Documentation

Time of First Successful Submission: 2025-06-30 13:01:31

Learning Complex Usage

Time of First Successful Submission: 2025-06-30 13:03:39

Reading Manuals

Time of First Successful Submission: 2025-07-02 13:31:19

Searching Manuals

Time of First Successful Submission: 2025-07-02 13:32:22

Searching For Manuals

Time of First Successful Submission: 2025-07-02 13:38:19

Helpful Programs

Time of First Successful Submission: 2025-07-02 13:39:00

Help for Builtins

Time of First Successful Submission: 2025-07-02 13:39:52

Matching with *

Time of First Successful Submission: 2025-07-02 13:43:38

Matching with ?

Time of First Successful Submission: 2025-07-02 13:44:36

Matching with []

Time of First Successful Submission: 2025-07-02 13:45:44

Matching paths with []

Time of First Successful Submission: 2025-07-02 13:46:53

Multiple globs

Time of First Successful Submission: 2025-07-02 13:47:46

Mixing globs

Time of First Successful Submission: 2025-07-02 13:53:28

Exclusionary globbing

Time of First Successful Submission: 2025-07-02 13:54:31

Tab completion

Time of First Successful Submission: 2025-07-02 13:56:02

Multiple options for tab completion

Time of First Successful Submission: 2025-07-02 13:57:23

Tab completion on commands

Time of First Successful Submission: 2025-07-02 13:57:59

Redirecting output

Time of First Successful Submission: 2025-07-03 02:42:44

Redirecting more output

Time of First Successful Submission: 2025-07-03 02:43:41

Appending output

Time of First Successful Submission: 2025-07-03 02:45:43

Redirecting errors

Time of First Successful Submission: 2025-07-03 02:47:35

Redirecting input

Time of First Successful Submission: 2025-07-03 02:48:50

Grepping stored results

Time of First Successful Submission: 2025-07-03 02:50:23

Grepping live output

Time of First Successful Submission: 2025-07-03 02:51:14

Grepping errors

Time of First Successful Submission: 2025-07-03 03:13:44

Filtering with grep -v

Time of First Successful Submission: 2025-07-03 03:15:10

Filtering with sed

Time of First Successful Submission: 2025-11-13 00:10:10

Duplicating piped data with tee

Time of First Successful Submission: 2025-07-03 03:17:55

Process substitution for input

Time of First Successful Submission: 2025-07-27 04:49:41

Writing to multiple programs

Time of First Successful Submission: 2025-07-03 03:25:07

Split-piping stderr and stdout

Time of First Successful Submission: 2025-07-03 03:27:59

Named pipes

Time of First Successful Submission: 2025-07-27 04:53:46

Printing Variables

Time of First Successful Submission: 2025-07-03 03:29:52

Setting Variables

Time of First Successful Submission: 2025-07-03 03:31:44

Multi-word Variables

Time of First Successful Submission: 2025-07-03 03:32:42

Exporting Variables

Time of First Successful Submission: 2025-07-03 03:37:49

Printing Exported Variables

Time of First Successful Submission: 2025-07-03 05:56:01

Storing Command Output

Time of First Successful Submission: 2025-07-03 06:03:38

Reading Input

Time of First Successful Submission: 2025-07-03 06:06:02

Reading Files

Time of First Successful Submission: 2025-07-03 06:07:25

Translating characters

Time of First Successful Submission: 2025-07-03 06:10:27

Deleting characters

Time of First Successful Submission: 2025-07-03 06:11:02

Deleting newlines

Time of First Successful Submission: 2025-07-03 06:15:30

Extracting the first lines with head

Time of First Successful Submission: 2025-07-03 06:16:26

Extracting specific sections of text

Time of First Successful Submission: 2025-07-03 06:18:06

Sorting data

Time of First Successful Submission: 2025-07-27 04:55:32

Listing Processes

Time of First Successful Submission: 2025-07-03 07:11:01

Killing Processes

Time of First Successful Submission: 2025-07-03 07:33:57

Interrupting Processes

Time of First Successful Submission: 2025-07-03 07:35:33

Killing Misbehaving Processes

Time of First Successful Submission: 2025-07-27 04:57:43

Suspending Processes

Time of First Successful Submission: 2025-07-03 07:53:06

Resuming Processes

Time of First Successful Submission: 2025-07-03 08:20:39

Backgrounding Processes

Time of First Successful Submission: 2025-07-03 08:27:17

Foregrounding Processes

Time of First Successful Submission: 2025-07-03 08:27:57

Starting Backgrounded Processes

Time of First Successful Submission: 2025-07-03 08:28:32

Process Exit Codes

Time of First Successful Submission: 2025-07-03 08:34:49

Becoming root with su

Time of First Successful Submission: 2025-07-03 10:10:21

Other users with su

Time of First Successful Submission: 2025-07-03 10:11:35

Cracking passwords

Time of First Successful Submission: 2025-07-03 11:11:25

Using sudo

Time of First Successful Submission: 2025-07-03 11:13:42

Changing File Ownership

Time of First Successful Submission: 2025-07-03 08:50:58

Groups and Files

Time of First Successful Submission: 2025-07-03 09:28:20

Fun With Groups Names

Time of First Successful Submission: 2025-07-03 09:29:18

Changing Permissions

Time of First Successful Submission: 2025-07-03 09:42:06

Executable Files

Time of First Successful Submission: 2025-07-03 09:43:06

Permission Tweaking Practice

Time of First Successful Submission: 2025-07-03 09:47:33

Permissions Setting Practice

Time of First Successful Submission: 2025-07-03 09:50:17

The SUID Bit

Time of First Successful Submission: 2025-07-03 09:54:13

Chaining with Semicolons

Time of First Successful Submission: 2025-07-03 11:17:13

Building on Success

Time of First Successful Submission: 2025-07-27 04:58:24

Handling Failure

Time of First Successful Submission: 2025-07-27 04:58:53

Your First Shell Script

Time of First Successful Submission: 2025-07-03 11:18:54

Redirecting Script Output

Time of First Successful Submission: 2025-07-04 01:44:36

Executable Shell Scripts

Time of First Successful Submission: 2025-07-04 01:45:32

Understanding Shebangs

Time of First Successful Submission: 2025-07-27 05:00:51

Scripting with Arguments

Time of First Successful Submission: 2025-07-27 05:02:05

Scripting with Conditionals

Time of First Successful Submission: 2025-07-27 05:04:09

Scripting with Default Cases

Time of First Successful Submission: 2025-07-27 05:05:01

Scripting with Multiple Conditions

Time of First Successful Submission: 2025-07-27 05:06:41

Reading Shell Scripts

Time of First Successful Submission: 2025-09-06 08:19:52

Launching Screen

Time of First Successful Submission: 2025-07-27 05:07:49

Detaching and Attaching

Time of First Successful Submission: 2025-07-27 05:10:25

Finding Sessions

Time of First Successful Submission: 2025-07-27 05:11:15

Switching Windows

Time of First Successful Submission: 2025-07-27 05:12:15

Detaching and Attaching (tmux)

Time of First Successful Submission: 2025-07-27 05:13:07

Switching Windows (tmux)

Time of First Successful Submission: 2025-07-27 05:13:27

The PATH Variable

Time of First Successful Submission: 2025-07-04 01:48:29

Setting PATH

Time of First Successful Submission: 2025-07-04 01:50:07

Finding Commands

Time of First Successful Submission: 2025-07-04 01:52:17

Adding Commands

Time of First Successful Submission: 2025-07-04 01:59:51

Hijacking Commands

Time of First Successful Submission: 2025-07-04 02:00:56

Bashrc Backdoor

Time of First Successful Submission: 2025-07-04 02:05:57

Sniffing Input

Time of First Successful Submission: 2025-07-04 02:09:38

Overshared Directories

Time of First Successful Submission: 2025-07-04 02:14:32

Tricky Linking

Time of First Successful Submission: 2025-07-04 02:20:02

Sniffing Process Arguments

Time of First Successful Submission: 2025-07-04 02:21:36

Snooping on Configurations

Time of First Successful Submission: 2025-07-04 02:27:38

The Fork Bomb

Time of First Successful Submission: 2025-07-04 02:34:12

Disk-Space Doomsday

Time of First Successful Submission: 2025-07-04 02:37:16

rm -rf /

Time of First Successful Submission: 2025-07-04 02:46:09

Life after rm -rf /

Time of First Successful Submission: 2025-07-04 02:50:50

Finding meaning after rm -rf /

Time of First Successful Submission: 2025-07-04 02:53:00

Computing 101

69 / 69 581 / 19407

Your First Register

Time of First Successful Submission: 2025-07-04 07:05:33

Your First Syscall

Time of First Successful Submission: 2025-07-04 07:08:14

Exit Codes

Time of First Successful Submission: 2025-07-04 07:12:45

Building Executables

Time of First Successful Submission: 2025-07-04 07:46:23

Moving Between Registers

Time of First Successful Submission: 2025-07-04 07:47:02

Tracing Syscalls

Time of First Successful Submission: 2025-07-05 09:58:28

Starting GDB

Time of First Successful Submission: 2025-07-05 09:59:28

Starting Programs in GDB

Time of First Successful Submission: 2025-07-05 10:01:42

Loading From Memory

Time of First Successful Submission: 2025-07-06 02:56:51

More Loading Practice

Time of First Successful Submission: 2025-07-06 02:57:30

Dereferencing Pointers

Time of First Successful Submission: 2025-07-06 03:02:00

Dereferencing Yourself

Time of First Successful Submission: 2025-07-06 03:03:43

Dereferencing with Offsets

Time of First Successful Submission: 2025-07-06 10:12:00

Stored Addresses

Time of First Successful Submission: 2025-07-06 10:14:47

Double Dereference

Time of First Successful Submission: 2025-07-06 10:17:55

Triple Dereference

Time of First Successful Submission: 2025-07-06 10:18:32

Writing Output

Time of First Successful Submission: 2025-07-07 02:42:07

Chaining Syscalls

Time of First Successful Submission: 2025-07-07 02:43:19

Writing Strings

Time of First Successful Submission: 2025-07-07 02:46:10

Reading Data

Time of First Successful Submission: 2025-07-07 03:45:05

set-register

Time of First Successful Submission: 2022-07-06 14:06:25

set-multiple-registers

Time of First Successful Submission: 2025-07-07 04:21:20

add-to-register

Time of First Successful Submission: 2022-07-06 14:16:33

linear-equation-registers

Time of First Successful Submission: 2022-07-06 14:37:00

integer-division

Time of First Successful Submission: 2022-07-06 23:40:32

modulo-operation

Time of First Successful Submission: 2022-07-06 23:42:00

set-upper-byte

Time of First Successful Submission: 2025-07-07 06:04:37

efficient-modulo

Time of First Successful Submission: 2022-07-06 23:56:56

byte-extraction

Time of First Successful Submission: 2022-07-07 00:05:18

bitwise-and

Time of First Successful Submission: 2022-07-07 00:14:57

check-even

Time of First Successful Submission: 2022-07-07 00:17:18

memory-read

Time of First Successful Submission: 2025-07-07 06:25:20

memory-write

Time of First Successful Submission: 2025-07-07 06:25:55

memory-increment

Time of First Successful Submission: 2022-07-07 00:29:18

byte-access

Time of First Successful Submission: 2025-07-07 06:33:07

memory-size-access

Time of First Successful Submission: 2022-07-07 00:39:49

little-endian-write

Time of First Successful Submission: 2022-07-07 03:14:21

memory-sum

Time of First Successful Submission: 2022-07-07 03:18:10

stack-subtraction

Time of First Successful Submission: 2022-07-07 03:29:09

swap-stack-values

Time of First Successful Submission: 2022-07-07 03:30:27

average-stack-values

Time of First Successful Submission: 2022-07-07 03:40:56

absolute-jump

Time of First Successful Submission: 2025-07-07 07:17:21

relative-jump

Time of First Successful Submission: 2025-07-07 07:29:18

jump-trampoline

Time of First Successful Submission: 2022-07-07 04:01:27

conditional-jump

Time of First Successful Submission: 2022-07-07 06:00:55

indirect-jump

Time of First Successful Submission: 2022-07-07 07:09:44

average-loop

Time of First Successful Submission: 2022-07-07 09:31:14

count-non-zero

Time of First Successful Submission: 2022-07-07 11:42:04

string-lower

Time of First Successful Submission: 2022-07-07 12:35:18

most-common-byte

Time of First Successful Submission: 2022-07-07 14:06:10

Debugging Programs

Time of First Successful Submission: 2022-07-07 14:16:42

Inspecting Registers

Time of First Successful Submission: 2022-07-07 14:19:21

Examining Memory

Time of First Successful Submission: 2022-07-07 15:05:36

Setting Breakpoints

Time of First Successful Submission: 2022-07-08 00:08:11

GDB Scripting

Time of First Successful Submission: 2022-07-08 06:30:21

Modifying Data

Time of First Successful Submission: 2022-07-08 07:24:25

Modifying Execution

Time of First Successful Submission: 2022-07-08 07:35:33

Broken Functions

Time of First Successful Submission: 2025-07-08 09:05:32

Exit

Time of First Successful Submission: 2025-07-09 02:20:57

Socket

Time of First Successful Submission: 2025-07-09 02:30:14

Bind

Time of First Successful Submission: 2025-07-09 02:48:05

Listen

Time of First Successful Submission: 2025-07-09 02:52:30

Accept

Time of First Successful Submission: 2025-07-09 03:01:18

Static Response

Time of First Successful Submission: 2025-07-09 03:44:24

Dynamic Response

Time of First Successful Submission: 2025-07-09 07:09:50

Iterative GET Server

Time of First Successful Submission: 2025-07-09 07:11:21

Concurrent GET Server

Time of First Successful Submission: 2025-07-09 07:23:22

Concurrent POST Server

Time of First Successful Submission: 2025-07-09 07:59:06

Web Server

Time of First Successful Submission: 2025-07-09 07:59:47

Playing With Programs

116 / 116 218 / 22236

What's the password?

Time of First Successful Submission: 2025-07-10 03:11:41

... and again!

Time of First Successful Submission: 2025-07-10 03:12:16

Newline Troubles

Time of First Successful Submission: 2025-07-10 03:17:42

Reasoning about files

Time of First Successful Submission: 2025-07-10 03:19:24

Specifying Filenames

Time of First Successful Submission: 2025-07-10 03:20:05

Binary and Hex Encoding

Time of First Successful Submission: 2025-07-10 03:38:17

More Hex

Time of First Successful Submission: 2025-07-10 03:41:04

Decoding Hex

Time of First Successful Submission: 2025-07-10 03:44:39

Decoding Practice

Time of First Successful Submission: 2025-07-10 03:47:02

Encoding Practice

Time of First Successful Submission: 2025-07-10 03:50:55

Hex-encoding ASCII

Time of First Successful Submission: 2025-07-10 06:15:52

Nested Encoding

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

Hex-encoding UTF-8

Time of First Successful Submission: 2025-07-10 06:21:55

UTF Mixups

Time of First Successful Submission: 2025-07-10 06:34:27

Modifying Encoded Data

Time of First Successful Submission: 2025-07-10 06:42:40

Decoding Base64

Time of First Successful Submission: 2025-07-10 06:53:51

Encoding Base64

Time of First Successful Submission: 2025-07-10 06:54:42

Dealing with Obfuscation

Time of First Successful Submission: 2025-07-10 06:57:14

Dealing with Obfuscation 2

Time of First Successful Submission: 2025-07-10 07:04:04

Your First HTTP Request

Time of First Successful Submission: 2025-07-10 09:53:54

Reading Flask

Time of First Successful Submission: 2025-07-10 09:56:39

Commented Data

Time of First Successful Submission: 2025-07-10 09:59:38

HTTP Metadata

Time of First Successful Submission: 2025-07-10 10:01:38

HTTP (netcat)

Time of First Successful Submission: 2025-07-10 10:04:35

HTTP Paths (netcat)

Time of First Successful Submission: 2025-07-10 10:05:40

HTTP (curl)

Time of First Successful Submission: 2025-07-10 10:06:36

HTTP (python)

Time of First Successful Submission: 2025-07-10 10:08:32

HTTP Host Header (python)

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

HTTP Host Header (curl)

Time of First Successful Submission: 2025-07-11 07:20:32

HTTP Host Header (netcat)

Time of First Successful Submission: 2025-07-11 07:22:43

URL Encoding (netcat)

Time of First Successful Submission: 2025-07-11 07:27:16

HTTP GET Parameters

Time of First Successful Submission: 2025-07-11 07:30:13

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2025-07-11 07:37:10

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2025-07-11 07:39:34

HTTP Forms

Time of First Successful Submission: 2025-07-11 07:42:58

HTTP Forms (curl)

Time of First Successful Submission: 2025-07-11 07:45:46

HTTP Forms (netcat)

Time of First Successful Submission: 2025-07-11 07:48:44

HTTP Forms (python)

Time of First Successful Submission: 2025-07-11 07:49:42

HTTP Forms Without Forms

Time of First Successful Submission: 2025-07-11 07:51:39

Multiple Form Fields (curl)

Time of First Successful Submission: 2025-07-11 07:53:03

Multiple Form Fields (netcat)

Time of First Successful Submission: 2025-07-11 08:30:10

HTTP Redirects (netcat)

Time of First Successful Submission: 2025-07-11 08:31:55

HTTP Redirects (curl)

Time of First Successful Submission: 2025-07-11 08:34:14

HTTP Redirects (python)

Time of First Successful Submission: 2025-07-11 08:35:30

HTTP Cookies (curl)

Time of First Successful Submission: 2025-07-11 08:38:27

HTTP Cookies (netcat)

Time of First Successful Submission: 2025-07-11 08:39:45

HTTP Cookies (python)

Time of First Successful Submission: 2025-07-11 08:41:35

Server State (python)

Time of First Successful Submission: 2025-07-11 08:42:58

Listening Web

Time of First Successful Submission: 2025-07-11 08:47:23

Speaking Redirects

Time of First Successful Submission: 2025-07-11 08:53:09

JavaScript Redirects

Time of First Successful Submission: 2025-07-11 09:36:52

Including JavaScript

Time of First Successful Submission: 2025-07-11 10:14:21

HTTP (javascript)

Time of First Successful Submission: 2025-07-11 10:23:24

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2025-07-11 10:33:40

HTTP Forms (javascript)

Time of First Successful Submission: 2025-07-11 10:37:04

cat

Time of First Successful Submission: 2022-11-06 23:51:52

more

Time of First Successful Submission: 2022-11-06 23:53:11

less

Time of First Successful Submission: 2022-11-06 23:54:05

tail

Time of First Successful Submission: 2022-11-06 23:54:58

head

Time of First Successful Submission: 2022-11-06 23:55:28

sort

Time of First Successful Submission: 2022-11-06 23:56:28

vim

Time of First Successful Submission: 2022-11-06 23:59:50

emacs

Time of First Successful Submission: 2022-11-07 00:00:16

nano

Time of First Successful Submission: 2022-11-07 00:00:38

rev

Time of First Successful Submission: 2022-11-07 00:01:33

od

Time of First Successful Submission: 2022-11-07 00:04:18

hd

Time of First Successful Submission: 2022-11-07 00:06:34

xxd

Time of First Successful Submission: 2022-11-07 00:07:29

base32

Time of First Successful Submission: 2022-11-07 00:08:28

base64

Time of First Successful Submission: 2022-11-07 03:30:30

split

Time of First Successful Submission: 2022-11-07 03:31:52

gzip

Time of First Successful Submission: 2022-11-07 03:34:58

bzip2

Time of First Successful Submission: 2022-11-07 03:35:37

zip

Time of First Successful Submission: 2022-11-07 03:37:43

tar

Time of First Successful Submission: 2022-11-07 03:42:35

ar

Time of First Successful Submission: 2022-11-07 03:46:40

cpio

Time of First Successful Submission: 2022-11-07 04:02:14

genisoimage

Time of First Successful Submission: 2025-07-11 13:05:52

env

Time of First Successful Submission: 2022-11-07 06:28:02

find

Time of First Successful Submission: 2022-11-07 06:31:23

make

Time of First Successful Submission: 2022-11-07 06:32:29

nice

Time of First Successful Submission: 2022-11-07 06:33:08

timeout

Time of First Successful Submission: 2022-11-07 06:34:06

stdbuf

Time of First Successful Submission: 2022-11-07 06:36:51

setarch

Time of First Successful Submission: 2022-11-07 06:40:04

watch

Time of First Successful Submission: 2022-11-07 06:44:45

socat

Time of First Successful Submission: 2022-11-07 06:48:00

whiptail

Time of First Successful Submission: 2022-11-07 06:57:26

awk

Time of First Successful Submission: 2022-11-07 06:59:15

sed

Time of First Successful Submission: 2022-11-07 07:01:06

ed

Time of First Successful Submission: 2022-11-07 07:03:59

chown

Time of First Successful Submission: 2022-11-07 06:01:04

chmod

Time of First Successful Submission: 2022-11-07 06:02:44

cp

Time of First Successful Submission: 2022-11-07 06:03:21

mv

Time of First Successful Submission: 2022-11-07 06:13:25

perl

Time of First Successful Submission: 2022-11-07 05:48:21

python

Time of First Successful Submission: 2022-11-07 05:47:06

ruby

Time of First Successful Submission: 2022-11-07 05:45:06

bash

Time of First Successful Submission: 2022-11-07 05:42:26

date

Time of First Successful Submission: 2022-11-07 05:23:35

dmesg

Time of First Successful Submission: 2022-11-07 05:22:47

wc

Time of First Successful Submission: 2022-11-07 05:20:35

gcc

Time of First Successful Submission: 2022-11-07 05:16:07

as

Time of First Successful Submission: 2022-11-07 04:28:53

wget

Time of First Successful Submission: 2025-07-11 13:26:24

ssh-keygen

Time of First Successful Submission: 2025-07-11 13:45:04

SQL Queries

Time of First Successful Submission: 2025-07-12 04:20:36

Filtering SQL

Time of First Successful Submission: 2025-07-12 04:26:11

Choosing Columns

Time of First Successful Submission: 2025-07-12 04:27:36

Exclusionary Filtering

Time of First Successful Submission: 2025-07-12 04:28:45

Filtering Strings

Time of First Successful Submission: 2025-07-12 04:30:57

Filtering on Expressions

Time of First Successful Submission: 2025-07-12 06:30:15

SELECTing Expressions

Time of First Successful Submission: 2025-07-12 06:36:32

Composite Conditions

Time of First Successful Submission: 2025-07-12 06:38:23

Reaching Your LIMITs

Time of First Successful Submission: 2025-07-12 06:40:33

Querying Metadata

Time of First Successful Submission: 2025-07-12 06:42:55

CybHer Dojo

11 / 104 1510 / 38587

Using the Terminal

Time of First Successful Submission: 2025-08-10 13:02:34

Using the VSCode Workspace

Time of First Successful Submission: 2025-06-30 09:05:44

Using the GUI Desktop

Time of First Successful Submission: 2025-06-30 09:07:07

Pasting into the Desktop

Time of First Successful Submission: 2025-06-30 09:07:56

Restarting Challenges

Time of First Successful Submission: 2025-06-30 09:09:35

Getting Help

Time of First Successful Submission: 2025-06-30 09:14:40

Challenge Programs

Time of First Successful Submission: 2025-06-30 09:17:02

The Flag File

Time of First Successful Submission: 2025-06-30 09:23:05

Using Privileged Mode

Time of First Successful Submission: 2025-06-30 09:24:34

Persistent Home Directories - One

Time of First Successful Submission: 2025-06-30 09:27:01

Persistent Home Directories - Two

Time of First Successful Submission: 2025-06-30 09:26:41

GCA CTF

11 / 104 1510 / 38587

Using the Terminal

Time of First Successful Submission: 2025-08-10 13:02:34

Using the VSCode Workspace

Time of First Successful Submission: 2025-06-30 09:05:44

Using the GUI Desktop

Time of First Successful Submission: 2025-06-30 09:07:07

Pasting into the Desktop

Time of First Successful Submission: 2025-06-30 09:07:56

Restarting Challenges

Time of First Successful Submission: 2025-06-30 09:09:35

Getting Help

Time of First Successful Submission: 2025-06-30 09:14:40

Challenge Programs

Time of First Successful Submission: 2025-06-30 09:17:02

The Flag File

Time of First Successful Submission: 2025-06-30 09:23:05

Using Privileged Mode

Time of First Successful Submission: 2025-06-30 09:24:34

Persistent Home Directories - One

Time of First Successful Submission: 2025-06-30 09:27:01

Persistent Home Directories - Two

Time of First Successful Submission: 2025-06-30 09:26:41