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1 / 202 22018 / 22775


Triple Dereference

Time of First Successful Submission: 2025-12-27 16:29:33


Intro to Programming Languages

15 / 234 6934 / 31372


Commands

Time of First Successful Submission: 2025-12-24 15:49:12

Command Arguments

Time of First Successful Submission: 2025-12-24 15:50:04

Command History

Time of First Successful Submission: 2025-12-24 15:50:59

The Root Path

Time of First Successful Submission: 2025-12-24 15:53:20

Absolute Paths

Time of First Successful Submission: 2025-12-24 15:54:16

Changing position

Time of First Successful Submission: 2025-12-24 15:55:13

Changing to an Absolute Path

Time of First Successful Submission: 2025-12-24 15:56:17

Relative Paths

Time of First Successful Submission: 2025-12-24 15:57:50

Cat

Time of First Successful Submission: 2025-12-24 16:02:51

Ls

Time of First Successful Submission: 2025-12-24 17:04:33

Ls All

Time of First Successful Submission: 2025-12-24 17:07:52

Find

Time of First Successful Submission: 2025-12-24 17:14:15

Piping Echo

Time of First Successful Submission: 2025-12-25 16:30:04

Piping Stdout

Time of First Successful Submission: 2025-12-25 16:31:21

Piping Stdin

Time of First Successful Submission: 2025-12-25 16:36:25


Intro to Cybersecurity

183 / 183 155 / 19792


Path Traversal 1

Time of First Successful Submission: 2025-12-31 16:22:15

Path Traversal 2

Time of First Successful Submission: 2025-12-31 16:31:13

CMDi 1

Time of First Successful Submission: 2025-12-31 16:34:32

CMDi 2

Time of First Successful Submission: 2025-12-31 16:37:38

CMDi 3

Time of First Successful Submission: 2025-12-31 16:40:39

CMDi 4

Time of First Successful Submission: 2025-12-31 16:44:24

CMDi 5

Time of First Successful Submission: 2025-12-31 16:51:16

CMDi 6

Time of First Successful Submission: 2025-12-31 17:01:22

Authentication Bypass 1

Time of First Successful Submission: 2025-12-31 17:03:34

Authentication Bypass 2

Time of First Successful Submission: 2025-12-31 17:05:29

SQLi 1

Time of First Successful Submission: 2025-12-31 17:09:28

SQLi 2

Time of First Successful Submission: 2025-12-31 17:11:27

SQLi 3

Time of First Successful Submission: 2025-12-31 17:15:24

SQLi 4

Time of First Successful Submission: 2025-12-31 17:17:55

SQLi 5

Time of First Successful Submission: 2026-01-01 18:28:34

XSS 1

Time of First Successful Submission: 2026-01-01 18:34:46

XSS 2

Time of First Successful Submission: 2026-01-01 18:39:36

XSS 3

Time of First Successful Submission: 2026-01-01 18:44:22

XSS 4

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

XSS 5

Time of First Successful Submission: 2026-01-01 18:53:39

XSS 6

Time of First Successful Submission: 2026-01-01 18:57:47

XSS 7

Time of First Successful Submission: 2026-01-01 19:34:21

CSRF 1

Time of First Successful Submission: 2026-01-01 20:14:27

CSRF 2

Time of First Successful Submission: 2026-01-01 20:31:43

CSRF 3

Time of First Successful Submission: 2026-01-01 20:38:05

CSRF 4

Time of First Successful Submission: 2026-01-01 20:57:41

CSRF 5

Time of First Successful Submission: 2026-01-01 21:17:58

Connect

Time of First Successful Submission: 2026-01-24 14:07:35

Send

Time of First Successful Submission: 2026-01-24 14:08:33

Shutdown

Time of First Successful Submission: 2026-01-24 14:11:14

Listen

Time of First Successful Submission: 2026-01-24 14:14:19

Scan 1

Time of First Successful Submission: 2026-01-24 14:34:40

Scan 2

Time of First Successful Submission: 2026-01-24 14:56:26

Monitor 1

Time of First Successful Submission: 2026-01-24 15:00:12

Monitor 2

Time of First Successful Submission: 2026-01-24 15:09:51

Sniffing Cookies

Time of First Successful Submission: 2026-01-24 15:17:05

Network Configuration

Time of First Successful Submission: 2026-01-24 15:27:26

Firewall 1

Time of First Successful Submission: 2026-01-24 15:33:43

Firewall 2

Time of First Successful Submission: 2026-01-24 15:42:28

Firewall 3

Time of First Successful Submission: 2026-01-24 15:45:23

Denial of Service 1

Time of First Successful Submission: 2026-01-24 15:47:57

Denial of Service 2

Time of First Successful Submission: 2026-01-24 16:11:10

Denial of Service 3

Time of First Successful Submission: 2026-01-24 17:17:29

Ethernet

Time of First Successful Submission: 2026-01-24 17:31:16

IP

Time of First Successful Submission: 2026-01-24 17:43:36

TCP

Time of First Successful Submission: 2026-01-24 18:19:34

TCP Handshake

Time of First Successful Submission: 2026-01-24 19:27:03

UDP

Time of First Successful Submission: 2026-01-24 19:37:33

UDP 2

Time of First Successful Submission: 2026-01-24 19:39:34

UDP Spoofing 1

Time of First Successful Submission: 2026-01-24 19:53:14

UDP Spoofing 2

Time of First Successful Submission: 2026-01-24 19:51:22

UDP Spoofing 3

Time of First Successful Submission: 2026-01-24 19:57:53

UDP Spoofing 4

Time of First Successful Submission: 2026-01-24 20:57:04

ARP

Time of First Successful Submission: 2026-01-24 21:18:37

Intercept

Time of First Successful Submission: 2026-01-24 21:25:44

Man-in-the-Middle

Time of First Successful Submission: 2026-01-25 01:03:24

XOR

Time of First Successful Submission: 2026-01-26 13:28:53

XORing Hex

Time of First Successful Submission: 2026-01-26 14:28:34

XORing ASCII

Time of First Successful Submission: 2026-01-26 14:47:54

XORing ASCII Strings

Time of First Successful Submission: 2026-01-26 15:09:30

One-time Pad

Time of First Successful Submission: 2026-01-26 15:19:18

One-time Pad Tampering

Time of First Successful Submission: 2026-01-26 15:29:21

Many-time Pad

Time of First Successful Submission: 2026-01-26 15:56:30

AES

Time of First Successful Submission: 2026-01-26 16:14:50

AES-ECB-CPA

Time of First Successful Submission: 2026-01-26 16:58:57

AES-ECB-CPA-HTTP

Time of First Successful Submission: 2026-01-26 17:28:49

AES-ECB-CPA-HTTP (base64)

Time of First Successful Submission: 2026-01-26 17:31:22

AES-ECB-CPA-Suffix

Time of First Successful Submission: 2026-01-26 17:51:43

AES-ECB-CPA-Prefix

Time of First Successful Submission: 2026-01-26 18:54:48

AES-ECB-CPA-Prefix-2

Time of First Successful Submission: 2026-01-26 19:17:23

AES-ECB-CPA-Prefix-Miniboss

Time of First Successful Submission: 2026-01-26 19:40:16

AES-ECB-CPA-Prefix-Boss

Time of First Successful Submission: 2026-01-26 20:40:14

AES-CBC

Time of First Successful Submission: 2026-01-27 16:38:57

AES-CBC Tampering

Time of First Successful Submission: 2026-01-27 17:19:32

AES-CBC Resizing

Time of First Successful Submission: 2026-01-27 17:20:52

AES-CBC-POA-Partial-Block

Time of First Successful Submission: 2026-01-27 17:57:40

AES-CBC-POA-Full-Block

Time of First Successful Submission: 2026-01-27 18:06:14

AES-CBC-POA-Multi-Block

Time of First Successful Submission: 2026-01-27 18:25:37

AES-CBC-POA-Encrypt

Time of First Successful Submission: 2026-01-27 18:59:43

AES-CBC-POA-Encrypt-2

Time of First Successful Submission: 2026-01-27 20:30:01

DHKE

Time of First Successful Submission: 2026-01-28 12:01:41

DHKE-to-AES

Time of First Successful Submission: 2026-01-28 12:14:45

RSA 1

Time of First Successful Submission: 2026-01-28 12:26:40

RSA 2

Time of First Successful Submission: 2026-01-28 12:29:39

RSA 3

Time of First Successful Submission: 2026-01-28 12:56:39

RSA 4

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

RSA Signatures

Time of First Successful Submission: 2026-01-28 13:35:57

SHA 1

Time of First Successful Submission: 2026-01-28 15:39:12

SHA 2

Time of First Successful Submission: 2026-01-28 15:49:35

TLS 1

Time of First Successful Submission: 2026-01-28 16:17:22

TLS 2

Time of First Successful Submission: 2026-01-28 17:08:10

level1

Time of First Successful Submission: 2026-01-29 11:53:19

level2

Time of First Successful Submission: 2026-01-29 11:53:54

level3

Time of First Successful Submission: 2026-01-29 11:54:38

level4

Time of First Successful Submission: 2026-01-29 11:55:27

level5

Time of First Successful Submission: 2026-01-29 12:00:29

level6

Time of First Successful Submission: 2026-01-29 12:09:29

level7

Time of First Successful Submission: 2026-01-29 12:10:27

level8

Time of First Successful Submission: 2026-01-29 12:12:06

level9

Time of First Successful Submission: 2026-01-29 12:13:51

level10

Time of First Successful Submission: 2026-01-29 12:18:04

level11

Time of First Successful Submission: 2026-01-29 12:23:03

level12

Time of First Successful Submission: 2026-01-29 12:26:23

level13

Time of First Successful Submission: 2026-01-29 12:27:17

level14

Time of First Successful Submission: 2026-01-29 12:28:11

level15

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

level16

Time of First Successful Submission: 2026-01-29 12:30:51

level17

Time of First Successful Submission: 2026-01-29 13:19:15

level18

Time of First Successful Submission: 2026-01-29 13:19:57

level19

Time of First Successful Submission: 2026-01-29 13:21:48

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2026-01-29 17:32:11

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2026-01-29 17:34:21

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2026-01-29 17:38:31

Reading Endianness (Python)

Time of First Successful Submission: 2026-01-29 17:57:32

Reading Endianness (C)

Time of First Successful Submission: 2026-01-29 18:03:07

Reading Endianness (x86)

Time of First Successful Submission: 2026-01-30 15:11:22

Version Information (Python)

Time of First Successful Submission: 2026-01-30 15:17:44

Version Information (C)

Time of First Successful Submission: 2026-01-30 15:20:25

Version Information (x86)

Time of First Successful Submission: 2026-01-30 15:31:31

Metadata and Data (Python)

Time of First Successful Submission: 2026-01-30 15:39:40

Metadata and Data (C)

Time of First Successful Submission: 2026-01-30 15:42:11

Metadata and Data (x86)

Time of First Successful Submission: 2026-01-30 15:48:11

Input Restrictions (Python)

Time of First Successful Submission: 2026-01-30 15:54:04

Input Restrictions (C)

Time of First Successful Submission: 2026-01-30 15:56:15

Input Restrictions (x86)

Time of First Successful Submission: 2026-01-30 15:59:25

Behold the cIMG! (Python)

Time of First Successful Submission: 2026-01-30 16:06:01

Behold the cIMG! (C)

Time of First Successful Submission: 2026-01-30 16:17:21

Behold the cIMG! (x86)

Time of First Successful Submission: 2026-01-30 16:45:09

A Basic cIMG (Python)

Time of First Successful Submission: 2026-01-30 16:53:09

A Basic cIMG (C)

Time of First Successful Submission: 2026-01-30 16:55:22

A Basic cIMG (x86)

Time of First Successful Submission: 2026-01-30 16:57:29

Internal State Mini (C)

Time of First Successful Submission: 2026-01-30 21:25:33

Internal State Mini (x86)

Time of First Successful Submission: 2026-01-30 21:34:52

Internal State (C)

Time of First Successful Submission: 2026-01-31 14:10:09

Internal State (x86)

Time of First Successful Submission: 2026-01-31 14:44:34

File Formats: Directives (C)

Time of First Successful Submission: 2026-01-31 14:56:47

File Formats: Directives (x86)

Time of First Successful Submission: 2026-01-31 15:00:19

The Patch Directive

Time of First Successful Submission: 2026-01-31 20:44:48

Optimizing for Space

Time of First Successful Submission: 2026-01-31 21:51:31

Tweaking Images

Time of First Successful Submission: 2026-02-01 11:10:48

Storage and Retrieval

Time of First Successful Submission: 2026-02-01 16:24:02

Extracting Knowledge

Time of First Successful Submission: 2026-02-01 16:58:23

Advanced Sprites

Time of First Successful Submission: 2026-02-01 20:49:25

Accessing Resources

Time of First Successful Submission: 2026-02-02 13:34:49

Unsafe Animations

Time of First Successful Submission: 2026-02-02 14:16:23

Animations

Time of First Successful Submission: 2026-02-02 15:02:16

Interoperability: Patching Data

Time of First Successful Submission: 2026-02-02 15:28:51

Patching Code

Time of First Successful Submission: 2026-02-02 15:47:37

Patching Control Flow

Time of First Successful Submission: 2026-02-02 16:10:50

Your First Overflow (easy)

Time of First Successful Submission: 2026-02-02 17:32:51

Your First Overflow (hard)

Time of First Successful Submission: 2026-02-02 17:35:55

Precision (easy)

Time of First Successful Submission: 2026-02-02 17:37:54

Precision (hard)

Time of First Successful Submission: 2026-02-02 17:52:36

Variable Control (easy)

Time of First Successful Submission: 2026-02-02 17:58:28

Variable Control (hard)

Time of First Successful Submission: 2026-02-02 18:00:18

Control Hijack (easy)

Time of First Successful Submission: 2026-02-02 18:54:47

Control Hijack (hard)

Time of First Successful Submission: 2026-02-02 18:56:47

Tricky Control Hijack (easy)

Time of First Successful Submission: 2026-02-02 19:00:34

Tricky Control Hijack (hard)

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

PIEs (easy)

Time of First Successful Submission: 2026-02-03 14:33:04

PIEs (hard)

Time of First Successful Submission: 2026-02-03 15:14:44

String Lengths (easy)

Time of First Successful Submission: 2026-02-03 15:25:10

String Lengths (hard)

Time of First Successful Submission: 2026-02-03 15:26:44

Basic Shellcode

Time of First Successful Submission: 2026-02-03 16:20:46

NOP Sleds

Time of First Successful Submission: 2026-02-03 20:26:54

NULL-Free Shellcode

Time of First Successful Submission: 2026-02-03 20:41:55

Hijack to (Mapped) Shellcode (easy)

Time of First Successful Submission: 2026-02-05 15:30:37

Hijack to (Mapped) Shellcode (hard)

Time of First Successful Submission: 2026-02-05 15:33:37

Hijack to Shellcode (easy)

Time of First Successful Submission: 2026-02-05 16:01:10

Hijack to Shellcode (hard)

Time of First Successful Submission: 2026-02-05 16:04:44

ECB-to-Win (easy)

Time of First Successful Submission: 2026-02-05 17:09:02

ECB-to-Win (hard)

Time of First Successful Submission: 2026-02-05 17:13:16

ECB-to-Shellcode (easy)

Time of First Successful Submission: 2026-02-05 18:19:28

ECB-to-Shellcode (hard)

Time of First Successful Submission: 2026-02-05 19:01:43

CIMG Screenshots

Time of First Successful Submission: 2026-02-06 22:01:27

CIMG Screenshots 2

Time of First Successful Submission: 2026-02-09 15:15:45

Wily Webserver

Time of First Successful Submission: 2026-02-09 16:03:26

The Watering Hole

Time of First Successful Submission: 2026-02-11 21:29:29

Secure Chat 1

Time of First Successful Submission: 2026-02-17 15:14:13

Secure Chat 2

Time of First Successful Submission: 2026-02-18 16:00:53

Secure Chat 3

Time of First Successful Submission: 2026-02-18 21:27:38

Secure Chat 4

Time of First Successful Submission: 2026-02-19 15:47:08

Secure Chat 5

Time of First Successful Submission: 2026-02-19 23:56:57


Program Security

149 / 162 141 / 9452


ello ackers!

Time of First Successful Submission: 2026-02-20 17:32:23

Syscall Smuggler

Time of First Successful Submission: 2026-02-20 18:01:23

Syscall Shenanigans

Time of First Successful Submission: 2026-02-20 18:03:52

Byte Budget

Time of First Successful Submission: 2026-02-20 19:53:32

ClobberCode

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

Diverse Delivery

Time of First Successful Submission: 2026-02-20 20:12:32

Pocket Payload

Time of First Successful Submission: 2026-02-20 21:58:31

Micro Menace

Time of First Successful Submission: 2026-02-20 22:49:49

Login Leakage (Easy)

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

Login Leakage (Hard)

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

Bounds Breaker (Easy)

Time of First Successful Submission: 2026-02-21 18:28:22

Bounds Breaker (Hard)

Time of First Successful Submission: 2026-02-21 18:34:17

Casting Catastrophe (Easy)

Time of First Successful Submission: 2026-02-21 18:52:07

Casting Catastrophe (Hard)

Time of First Successful Submission: 2026-02-21 19:26:28

Pointer Problems (Easy)

Time of First Successful Submission: 2026-02-21 19:37:29

Pointer Problems (Hard)

Time of First Successful Submission: 2026-02-21 20:17:56

Anomalous Array (Easy)

Time of First Successful Submission: 2026-02-22 19:27:58

Anomalous Array (Hard)

Time of First Successful Submission: 2026-02-22 19:31:55

Now you got it (Easy)

Time of First Successful Submission: 2026-02-22 21:17:18

Now you got it (Hard)

Time of First Successful Submission: 2026-02-22 21:51:52

Loop Lunacy (Easy)

Time of First Successful Submission: 2026-02-23 16:50:45

Loop Lunacy (Hard)

Time of First Successful Submission: 2026-02-23 17:17:59

Nosy Neighbor (Easy)

Time of First Successful Submission: 2026-02-23 17:57:05

Nosy Neighbor (Hard)

Time of First Successful Submission: 2026-02-23 17:59:43

Recursive Ruin (Easy)

Time of First Successful Submission: 2026-02-23 18:47:12

Recursive Ruin (Hard)

Time of First Successful Submission: 2026-02-23 18:51:33

Lingering Leftover (Easy)

Time of First Successful Submission: 2026-02-23 18:59:28

Lingering Leftover (Hard)

Time of First Successful Submission: 2026-02-23 19:03:13

Latent Leak (Easy)

Time of First Successful Submission: 2026-02-23 19:44:01

Latent Leak (Hard)

Time of First Successful Submission: 2026-02-23 19:54:13

Fork Foolery (Easy)

Time of First Successful Submission: 2026-02-23 20:24:14

Fork Foolery (Hard)

Time of First Successful Submission: 2026-02-23 20:29:24

Canary Conundrum (Easy)

Time of First Successful Submission: 2026-02-24 12:24:36

Canary Conundrum (Hard)

Time of First Successful Submission: 2026-02-24 17:17:04

A Crafty Clobber (Easy)

Time of First Successful Submission: 2026-02-24 17:30:29

A Crafty Clobber (Hard)

Time of First Successful Submission: 2026-02-24 17:33:37

Can It Fizz?

Time of First Successful Submission: 2026-02-24 19:53:34

Does It Buzz?

Time of First Successful Submission: 2026-02-24 20:55:51

Make It FizzBuzz

Time of First Successful Submission: 2026-02-25 19:24:45

Terrible Token (Easy)

Time of First Successful Submission: 2026-02-26 11:37:01

Terrible Token (Hard)

Time of First Successful Submission: 2026-02-26 11:39:48

Tangled Ticket (Easy)

Time of First Successful Submission: 2026-02-26 11:41:18

Tangled Ticket (Hard)

Time of First Successful Submission: 2026-02-26 11:43:43

Bit Bender

Time of First Successful Submission: 2026-02-26 12:23:23

Substitution Sorcery

Time of First Successful Submission: 2026-02-26 12:32:26

Meager Mangler (Easy)

Time of First Successful Submission: 2026-02-26 15:35:26

Meager Mangler (Hard)

Time of First Successful Submission: 2026-02-26 16:06:50

Monstrous Mangler (Easy)

Time of First Successful Submission: 2026-02-26 16:28:08

Monstrous Mangler (Hard)

Time of First Successful Submission: 2026-02-26 16:33:32

Patched Up (Easy)

Time of First Successful Submission: 2026-02-26 16:40:49

Patched Up (Hard)

Time of First Successful Submission: 2026-02-26 16:42:52

Puzzle Patch (Easy)

Time of First Successful Submission: 2026-02-26 16:45:27

Puzzle Patch (Hard)

Time of First Successful Submission: 2026-02-26 16:46:54

Patch Perfect (Easy)

Time of First Successful Submission: 2026-02-26 16:50:04

Patch Perfect (Hard)

Time of First Successful Submission: 2026-02-26 16:55:26

Trust the Yancode (Easy)

Time of First Successful Submission: 2026-02-26 18:06:13

Trust the Yancode (Hard)

Time of First Successful Submission: 2026-02-26 18:25:27

Know the Yancode (Easy)

Time of First Successful Submission: 2026-02-26 18:42:52

Know the Yancode (Hard)

Time of First Successful Submission: 2026-02-26 18:58:33

Master the Yancode (Easy)

Time of First Successful Submission: 2026-02-27 13:34:23

Master the Yancode (Hard)

Time of First Successful Submission: 2026-02-27 13:54:46

Transcend the Yancode (Easy)

Time of First Successful Submission: 2026-02-27 14:07:10

Transcend the Yancode (Hard)

Time of First Successful Submission: 2026-02-27 14:41:19

The Yanalyzer (Easy)

Time of First Successful Submission: 2026-02-27 17:16:04

The Yanalyzer (Hard)

Time of First Successful Submission: 2026-02-27 18:09:05

The Yangler (Easy)

Time of First Successful Submission: 2026-02-27 18:58:21

The Yangler (Hard)

Time of First Successful Submission: 2026-02-27 19:27:45

Yancraft (Easy)

Time of First Successful Submission: 2026-02-27 20:12:10

Yancraft (Hard)

Time of First Successful Submission: 2026-02-28 13:50:17

Yansanity (Easy)

Time of First Successful Submission: 2026-02-28 21:08:46

Yansanity (Hard)

Time of First Successful Submission: 2026-02-28 21:21:23

When the Cow Says Moo

Time of First Successful Submission: 2026-02-28 21:40:22

Predictable Migration

Time of First Successful Submission: 2026-03-01 18:22:08

Hashing Heifers

Time of First Successful Submission: 2026-03-01 18:57:23

Salty Stampede

Time of First Successful Submission: 2026-03-01 19:54:53

Loose Link (Easy)

Time of First Successful Submission: 2026-03-02 15:57:32

Loose Link (Hard)

Time of First Successful Submission: 2026-03-02 16:00:10

Call Chain (Easy)

Time of First Successful Submission: 2026-03-02 16:04:00

Call Chain (Hard)

Time of First Successful Submission: 2026-03-02 16:06:21

Chain of Command (Easy)

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

Chain of Command (Hard)

Time of First Successful Submission: 2026-03-02 17:33:31

Stop, Pop, and ROP (Easy)

Time of First Successful Submission: 2026-03-02 19:22:17

Stop, Pop, and ROP (Hard)

Time of First Successful Submission: 2026-03-02 19:24:46

Stop, Pop and ROP II (Easy)

Time of First Successful Submission: 2026-03-02 20:38:08

Stop, Pop, and ROP II (Hard)

Time of First Successful Submission: 2026-03-02 20:41:47

Indirect Invocation (Easy)

Time of First Successful Submission: 2026-03-03 19:15:58

Indirect Invocation (Hard)

Time of First Successful Submission: 2026-03-03 19:10:54

Leaky Libc (Easy)

Time of First Successful Submission: 2026-03-03 20:40:17

Leaky Libc (Hard)

Time of First Successful Submission: 2026-03-03 20:41:55

Putsception (Easy)

Time of First Successful Submission: 2026-03-03 20:43:29

Putsception (Hard)

Time of First Successful Submission: 2026-03-03 20:44:48

Pivotal Prelude (Easy)

Time of First Successful Submission: 2026-03-04 16:59:37

Pivotal Prelude (Hard)

Time of First Successful Submission: 2026-03-04 17:04:12

Pivotal Pointer (Easy)

Time of First Successful Submission: 2026-03-04 17:42:38

Pivotal Pointer (Hard)

Time of First Successful Submission: 2026-03-04 17:53:24

Pivotal Payload (Easy)

Time of First Successful Submission: 2026-03-04 17:59:18

Pivotal Payload (Hard)

Time of First Successful Submission: 2026-03-04 18:03:46

Pivotal Pursuit (Easy)

Time of First Successful Submission: 2026-03-04 18:55:31

Pivotal Pursuit (Hard)

Time of First Successful Submission: 2026-03-04 18:57:48

Guarded Gadgets (Easy)

Time of First Successful Submission: 2026-03-04 19:44:42

Guarded Gadgets (Hard)

Time of First Successful Submission: 2026-03-04 19:47:00

ROP Roulette (Easy)

Time of First Successful Submission: 2026-03-04 20:39:49

ROP Roulette (Hard)

Time of First Successful Submission: 2026-03-04 20:47:17

Libc Lottery (Easy)

Time of First Successful Submission: 2026-03-04 21:45:10

Libc Lottery (Hard)

Time of First Successful Submission: 2026-03-04 21:50:36

Freebie (Easy)

Time of First Successful Submission: 2026-03-05 16:31:07

Freebie (Hard)

Time of First Successful Submission: 2026-03-05 16:33:40

Freebin Feint (Easy)

Time of First Successful Submission: 2026-03-05 16:34:57

Freebin Feint (Hard)

Time of First Successful Submission: 2026-03-05 16:42:37

Free Flag Fumble (Easy)

Time of First Successful Submission: 2026-03-05 16:44:54

Free Flag Fumble (Hard)

Time of First Successful Submission: 2026-03-05 16:46:26

Fickle Free (Easy)

Time of First Successful Submission: 2026-03-08 19:37:11

Fickle Free (Hard)

Time of First Successful Submission: 2026-03-08 19:56:16

Malloc Mirage (Easy)

Time of First Successful Submission: 2026-03-08 20:04:47

Malloc Mirage (Hard)

Time of First Successful Submission: 2026-03-08 20:06:40

Seeking Secrets (Easy)

Time of First Successful Submission: 2026-03-08 20:28:27

Seeking Secrets (Hard)

Time of First Successful Submission: 2026-03-08 20:31:05

Seeking Substantial Secrets (Easy)

Time of First Successful Submission: 2026-03-08 21:14:48

Seeking Substantial Secrets (Hard)

Time of First Successful Submission: 2026-03-08 21:16:27

Seeking Spanless Secrets (Easy)

Time of First Successful Submission: 2026-03-11 15:46:39

Seeking Spanless Secrets (Hard)

Time of First Successful Submission: 2026-03-11 15:51:43

Seeking Smuggled Secrets (Easy)

Time of First Successful Submission: 2026-03-11 16:49:07

Seeking Smuggled Secrets (Hard)

Time of First Successful Submission: 2026-03-11 16:50:23

Sus Sequence (Easy)

Time of First Successful Submission: 2026-03-11 17:07:04

Sus Sequence (Hard)

Time of First Successful Submission: 2026-03-11 17:09:52

Echo Emanations (Easy)

Time of First Successful Submission: 2026-03-11 18:20:38

Echo Emanations (Hard)

Time of First Successful Submission: 2026-03-11 18:23:36

Stack Spoofing (Easy)

Time of First Successful Submission: 2026-03-13 16:28:26

Stack Spoofing (Hard)

Time of First Successful Submission: 2026-03-13 17:24:58

Stack Summoning (Easy)

Time of First Successful Submission: 2026-03-13 18:38:41

Stack Summoning (Hard)

Time of First Successful Submission: 2026-03-13 22:50:49

Enterprising Echo (Easy)

Time of First Successful Submission: 2026-03-16 15:15:02

Enterprising Echo (Hard)

Time of First Successful Submission: 2026-03-16 15:27:46

Ephemeral Echo (Easy)

Time of First Successful Submission: 2026-03-16 21:33:34

Ephemeral Echo (Hard)

Time of First Successful Submission: 2026-03-16 21:36:58

Seeking Safe Secrets (Easy)

Time of First Successful Submission: 2026-03-17 20:27:37

Seeking Safe Secrets (Hard)

Time of First Successful Submission: 2026-03-17 20:32:15

Sus Sequence Safety (Easy)

Time of First Successful Submission: 2026-03-17 21:02:52

Sus Sequence Safety (Hard)

Time of First Successful Submission: 2026-03-17 21:04:43

Safely Stack Summoning (Easy)

Time of First Successful Submission: 2026-03-17 21:23:00

Safely Stack Summoning (Hard)

Time of First Successful Submission: 2026-03-17 21:25:50

Overlapping Odyssey (Easy)

Time of First Successful Submission: 2026-03-18 16:22:19

Overlapping Odyssey (Hard)

Time of First Successful Submission: 2026-03-18 16:23:37

Tcache Terror (Easy)

Time of First Successful Submission: 2026-03-18 21:06:53

Tcache Terror (Hard)

Time of First Successful Submission: 2026-03-18 21:15:21

Containment Composition (Easy)

Time of First Successful Submission: 2026-03-19 16:03:39

Containment Composition (Hard)

Time of First Successful Submission: 2026-03-19 16:11:19

Constant Corruption (Easy)

Time of First Successful Submission: 2026-03-19 16:46:58

Constant Corruption (Hard)

Time of First Successful Submission: 2026-03-19 17:13:46


Start Here

12 / 12 1673 / 42531


Using the Terminal

Time of First Successful Submission: 2025-12-24 15:29:43

Using the VSCode Workspace

Time of First Successful Submission: 2025-12-24 15:31:27

Using the GUI Desktop

Time of First Successful Submission: 2025-12-24 15:32:38

Pasting into the Desktop

Time of First Successful Submission: 2025-12-24 15:33:37

Restarting Challenges

Time of First Successful Submission: 2025-12-24 15:36:02

Challenge Programs

Time of First Successful Submission: 2025-12-24 15:37:57

The Flag File

Time of First Successful Submission: 2025-12-24 15:38:50

Using Privileged Mode

Time of First Successful Submission: 2025-12-24 15:41:54

Persistent Home Directories - One

Time of First Successful Submission: 2025-12-24 15:44:44

Persistent Home Directories - Two

Time of First Successful Submission: 2025-12-24 15:45:32


Linux Luminarium

128 / 128 1039 / 31775


Intro to Commands

Time of First Successful Submission: 2025-12-24 15:49:12

Intro to Arguments

Time of First Successful Submission: 2025-12-24 15:50:04

Command History

Time of First Successful Submission: 2025-12-24 15:50:59

The Root

Time of First Successful Submission: 2025-12-24 15:53:20

Program and absolute paths

Time of First Successful Submission: 2025-12-24 15:54:16

Position thy self

Time of First Successful Submission: 2025-12-24 15:55:13

Position elsewhere

Time of First Successful Submission: 2025-12-24 15:56:17

implicit relative paths, from /

Time of First Successful Submission: 2025-12-24 15:57:50

explicit relative paths, from /

Time of First Successful Submission: 2025-12-24 15:58:41

implicit relative path

Time of First Successful Submission: 2025-12-24 15:59:56

home sweet home

Time of First Successful Submission: 2025-12-24 16:01:11

cat: not the pet, but the command!

Time of First Successful Submission: 2025-12-24 16:02:51

catting absolute paths

Time of First Successful Submission: 2025-12-24 16:03:22

more catting practice

Time of First Successful Submission: 2025-12-24 17:01:41

grepping for a needle in a haystack

Time of First Successful Submission: 2025-12-24 17:02:40

comparing files

Time of First Successful Submission: 2025-12-24 17:03:59

listing files

Time of First Successful Submission: 2025-12-24 17:04:33

touching files

Time of First Successful Submission: 2025-12-24 17:05:11

removing files

Time of First Successful Submission: 2025-12-24 17:05:42

moving files

Time of First Successful Submission: 2025-12-24 17:06:55

copying files

Time of First Successful Submission: 2025-12-24 17:07:23

hidden files

Time of First Successful Submission: 2025-12-24 17:07:52

An Epic Filesystem Quest

Time of First Successful Submission: 2025-12-24 17:11:37

making directories

Time of First Successful Submission: 2025-12-24 17:12:28

finding files

Time of First Successful Submission: 2025-12-24 17:14:15

linking files

Time of First Successful Submission: 2025-12-24 17:22:44

Learning From Documentation

Time of First Successful Submission: 2025-12-24 18:14:23

Learning Complex Usage

Time of First Successful Submission: 2025-12-24 18:15:16

Reading Manuals

Time of First Successful Submission: 2025-12-24 18:16:55

Searching Manuals

Time of First Successful Submission: 2025-12-24 18:18:03

Searching For Manuals

Time of First Successful Submission: 2025-12-24 18:21:18

Helpful Programs

Time of First Successful Submission: 2025-12-24 18:22:01

Help for Builtins

Time of First Successful Submission: 2025-12-24 18:23:10

Matching with *

Time of First Successful Submission: 2025-12-25 16:17:54

Matching with ?

Time of First Successful Submission: 2025-12-25 16:19:03

Matching with []

Time of First Successful Submission: 2025-12-25 16:20:09

Matching paths with []

Time of First Successful Submission: 2025-12-25 16:21:10

Multiple globs

Time of First Successful Submission: 2025-12-25 16:22:08

Mixing globs

Time of First Successful Submission: 2025-12-25 16:23:19

Exclusionary globbing

Time of First Successful Submission: 2025-12-25 16:25:05

Tab completion

Time of First Successful Submission: 2025-12-25 16:26:16

Multiple options for tab completion

Time of First Successful Submission: 2025-12-25 16:27:18

Tab completion on commands

Time of First Successful Submission: 2025-12-25 16:27:40

Redirecting output

Time of First Successful Submission: 2025-12-25 16:30:04

Redirecting more output

Time of First Successful Submission: 2025-12-25 16:31:21

Appending output

Time of First Successful Submission: 2025-12-25 16:32:44

Redirecting errors

Time of First Successful Submission: 2025-12-25 16:34:42

Redirecting input

Time of First Successful Submission: 2025-12-25 16:36:25

Grepping stored results

Time of First Successful Submission: 2025-12-25 16:37:32

Grepping live output

Time of First Successful Submission: 2025-12-25 16:38:29

Grepping errors

Time of First Successful Submission: 2025-12-25 16:40:15

Filtering with grep -v

Time of First Successful Submission: 2025-12-25 16:41:11

Filtering with sed

Time of First Successful Submission: 2025-12-25 16:41:52

Duplicating piped data with tee

Time of First Successful Submission: 2025-12-25 16:46:54

Process substitution for input

Time of First Successful Submission: 2025-12-25 16:49:06

Writing to multiple programs

Time of First Successful Submission: 2025-12-25 16:52:45

Split-piping stderr and stdout

Time of First Successful Submission: 2025-12-25 16:55:05

Named pipes

Time of First Successful Submission: 2025-12-25 16:59:22

Printing Variables

Time of First Successful Submission: 2025-12-25 17:01:24

Setting Variables

Time of First Successful Submission: 2025-12-25 17:02:06

Multi-word Variables

Time of First Successful Submission: 2025-12-25 17:02:38

Exporting Variables

Time of First Successful Submission: 2025-12-25 17:03:36

Printing Exported Variables

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

Storing Command Output

Time of First Successful Submission: 2025-12-25 17:05:28

Reading Input

Time of First Successful Submission: 2025-12-25 17:06:38

Reading Files

Time of First Successful Submission: 2025-12-25 17:07:46

Translating characters

Time of First Successful Submission: 2025-12-25 17:11:22

Deleting characters

Time of First Successful Submission: 2025-12-25 17:11:58

Deleting newlines

Time of First Successful Submission: 2025-12-25 17:12:54

Extracting the first lines with head

Time of First Successful Submission: 2025-12-25 17:13:40

Extracting specific sections of text

Time of First Successful Submission: 2025-12-25 17:14:57

Sorting data

Time of First Successful Submission: 2025-12-25 17:15:46

Listing Processes

Time of First Successful Submission: 2025-12-26 15:24:44

Killing Processes

Time of First Successful Submission: 2025-12-26 15:45:04

Interrupting Processes

Time of First Successful Submission: 2025-12-26 15:46:21

Killing Misbehaving Processes

Time of First Successful Submission: 2025-12-26 15:50:13

Suspending Processes

Time of First Successful Submission: 2025-12-26 15:51:44

Resuming Processes

Time of First Successful Submission: 2025-12-26 15:52:43

Backgrounding Processes

Time of First Successful Submission: 2025-12-26 15:54:54

Foregrounding Processes

Time of First Successful Submission: 2025-12-26 15:55:45

Starting Backgrounded Processes

Time of First Successful Submission: 2025-12-26 15:56:07

Process Exit Codes

Time of First Successful Submission: 2025-12-26 15:57:58

Becoming root with su

Time of First Successful Submission: 2025-12-26 16:00:56

Other users with su

Time of First Successful Submission: 2025-12-26 16:02:11

Cracking passwords

Time of First Successful Submission: 2025-12-26 16:04:44

Using sudo

Time of First Successful Submission: 2025-12-26 16:06:13

Changing File Ownership

Time of First Successful Submission: 2025-12-26 17:06:49

Groups and Files

Time of First Successful Submission: 2025-12-26 17:08:48

Fun With Groups Names

Time of First Successful Submission: 2025-12-26 17:22:26

Changing Permissions

Time of First Successful Submission: 2025-12-26 18:28:31

Executable Files

Time of First Successful Submission: 2025-12-26 18:32:01

Permission Tweaking Practice

Time of First Successful Submission: 2025-12-26 18:34:14

Permissions Setting Practice

Time of First Successful Submission: 2025-12-26 18:46:38

The SUID Bit

Time of First Successful Submission: 2025-12-26 18:53:08

Chaining with Semicolons

Time of First Successful Submission: 2025-12-26 18:56:57

Building on Success

Time of First Successful Submission: 2025-12-26 19:15:38

Handling Failure

Time of First Successful Submission: 2025-12-26 19:16:42

Your First Shell Script

Time of First Successful Submission: 2025-12-26 19:18:42

Redirecting Script Output

Time of First Successful Submission: 2025-12-26 20:00:08

Executable Shell Scripts

Time of First Successful Submission: 2025-12-26 20:01:20

Understanding Shebangs

Time of First Successful Submission: 2025-12-26 20:09:53

Scripting with Arguments

Time of First Successful Submission: 2025-12-26 20:12:49

Scripting with Conditionals

Time of First Successful Submission: 2025-12-26 20:17:40

Scripting with Default Cases

Time of First Successful Submission: 2025-12-26 20:21:31

Scripting with Multiple Conditions

Time of First Successful Submission: 2025-12-26 20:23:06

Reading Shell Scripts

Time of First Successful Submission: 2025-12-26 20:27:09

Launching Screen

Time of First Successful Submission: 2025-12-26 21:25:53

Detaching and Attaching

Time of First Successful Submission: 2025-12-26 21:26:49

Finding Sessions

Time of First Successful Submission: 2025-12-26 21:30:23

Switching Windows

Time of First Successful Submission: 2025-12-26 21:31:13

Detaching and Attaching (tmux)

Time of First Successful Submission: 2025-12-26 21:34:28

Switching Windows (tmux)

Time of First Successful Submission: 2025-12-26 21:35:08

The PATH Variable

Time of First Successful Submission: 2025-12-26 22:22:38

Setting PATH

Time of First Successful Submission: 2025-12-26 22:25:46

Finding Commands

Time of First Successful Submission: 2025-12-26 22:28:52

Adding Commands

Time of First Successful Submission: 2025-12-26 22:32:35

Hijacking Commands

Time of First Successful Submission: 2025-12-26 22:34:58

Bashrc Backdoor

Time of First Successful Submission: 2025-12-26 22:38:10

Sniffing Input

Time of First Successful Submission: 2025-12-26 22:57:53

Overshared Directories

Time of First Successful Submission: 2025-12-26 23:01:58

Tricky Linking

Time of First Successful Submission: 2025-12-26 23:04:13

Sniffing Process Arguments

Time of First Successful Submission: 2025-12-26 23:05:16

Snooping on Configurations

Time of First Successful Submission: 2025-12-26 23:06:44

The Fork Bomb

Time of First Successful Submission: 2025-12-26 23:16:09

Disk-Space Doomsday

Time of First Successful Submission: 2025-12-26 23:17:31

rm -rf /

Time of First Successful Submission: 2025-12-26 23:20:44

Life after rm -rf /

Time of First Successful Submission: 2025-12-26 23:22:54

Finding meaning after rm -rf /

Time of First Successful Submission: 2025-12-26 23:25:22


Computing 101

94 / 94 27 / 21264


Your First Register

Time of First Successful Submission: 2025-12-27 15:47:15

Your First Syscall

Time of First Successful Submission: 2025-12-27 15:48:49

Exit Codes

Time of First Successful Submission: 2025-12-27 15:49:51

Building Executables

Time of First Successful Submission: 2025-12-27 15:53:44

Moving Between Registers

Time of First Successful Submission: 2025-12-27 15:55:04

Loading From Memory

Time of First Successful Submission: 2025-12-27 16:20:15

More Loading Practice

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

Dereferencing Pointers

Time of First Successful Submission: 2025-12-27 16:23:10

Dereferencing Yourself

Time of First Successful Submission: 2025-12-27 16:24:01

Dereferencing with Offsets

Time of First Successful Submission: 2025-12-27 16:25:04

Stored Addresses

Time of First Successful Submission: 2025-12-27 16:27:26

Double Dereference

Time of First Successful Submission: 2025-12-27 16:28:31

The Stack

Time of First Successful Submission: 2026-02-20 14:05:30

Stack Offsets

Time of First Successful Submission: 2026-02-20 14:07:12

Program Arguments on the Stack

Time of First Successful Submission: 2026-02-20 14:09:18

Popping From the Stack

Time of First Successful Submission: 2026-02-20 14:11:03

Disassembling Programs

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

Tracing Syscalls

Time of First Successful Submission: 2025-12-27 15:57:22

Starting GDB

Time of First Successful Submission: 2025-12-27 15:58:06

Quitting GDB

Time of First Successful Submission: 2026-02-20 14:15:01

Starting Programs in GDB

Time of First Successful Submission: 2025-12-27 15:58:59

Disassembling in GDB

Time of First Successful Submission: 2026-02-20 14:16:03

Stepping Through Instructions

Time of First Successful Submission: 2026-02-20 14:17:48

Reading Register Values

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

Popping Stack Values

Time of First Successful Submission: 2026-02-20 14:25:48

Examining Memory

Time of First Successful Submission: 2026-02-20 14:26:46

Examining Stack Pointers

Time of First Successful Submission: 2026-02-20 14:31:32

Cooperative Debugging

Time of First Successful Submission: 2026-02-20 14:34:08

Writing Output

Time of First Successful Submission: 2025-12-27 16:39:49

Chaining Syscalls

Time of First Successful Submission: 2025-12-27 16:41:10

Writing Strings

Time of First Successful Submission: 2025-12-27 16:42:33

Reading Data

Time of First Successful Submission: 2025-12-27 16:44:35

Opening Files

Time of First Successful Submission: 2026-02-20 15:11:25

Hardcoding the Filename

Time of First Successful Submission: 2026-02-20 15:14:34

Comparing Values

Time of First Successful Submission: 2026-02-20 15:49:34

Comparing Characters

Time of First Successful Submission: 2026-02-20 15:51:39

Conditional Control Flow

Time of First Successful Submission: 2026-02-20 15:53:56

Comparing Strings

Time of First Successful Submission: 2026-02-20 15:55:46

Reverse the Password

Time of First Successful Submission: 2026-02-20 15:59:30

Conditionals Without Conditionals

Time of First Successful Submission: 2026-02-20 16:07:31

Looping

Time of First Successful Submission: 2026-02-20 16:09:32

Reverse the Calculation

Time of First Successful Submission: 2026-02-20 16:11:28

Reverse the Reverse

Time of First Successful Submission: 2026-02-20 16:12:30

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-02-20 16:13:53

Loops on Data

Time of First Successful Submission: 2026-02-20 16:21:26

set-register

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

set-multiple-registers

Time of First Successful Submission: 2025-12-27 17:33:49

add-to-register

Time of First Successful Submission: 2025-12-27 17:35:13

linear-equation-registers

Time of First Successful Submission: 2025-12-27 17:41:12

integer-division

Time of First Successful Submission: 2025-12-27 17:42:51

modulo-operation

Time of First Successful Submission: 2025-12-27 17:43:34

set-upper-byte

Time of First Successful Submission: 2025-12-27 17:46:45

efficient-modulo

Time of First Successful Submission: 2025-12-27 17:49:46

byte-extraction

Time of First Successful Submission: 2025-12-27 17:52:59

bitwise-and

Time of First Successful Submission: 2025-12-27 17:54:51

check-even

Time of First Successful Submission: 2025-12-27 17:58:01

memory-read

Time of First Successful Submission: 2025-12-27 17:59:22

memory-write

Time of First Successful Submission: 2025-12-27 17:59:57

memory-increment

Time of First Successful Submission: 2025-12-27 18:02:09

byte-access

Time of First Successful Submission: 2025-12-27 18:03:09

memory-size-access

Time of First Successful Submission: 2025-12-27 18:04:24

little-endian-write

Time of First Successful Submission: 2025-12-27 18:08:38

memory-sum

Time of First Successful Submission: 2025-12-27 18:10:54

stack-subtraction

Time of First Successful Submission: 2025-12-27 18:11:57

swap-stack-values

Time of First Successful Submission: 2025-12-27 18:12:48

average-stack-values

Time of First Successful Submission: 2025-12-27 18:15:46

absolute-jump

Time of First Successful Submission: 2025-12-27 18:17:18

relative-jump

Time of First Successful Submission: 2025-12-27 18:19:54

jump-trampoline

Time of First Successful Submission: 2025-12-27 18:20:54

conditional-jump

Time of First Successful Submission: 2025-12-27 18:28:05

indirect-jump

Time of First Successful Submission: 2025-12-27 18:32:46

average-loop

Time of First Successful Submission: 2025-12-27 18:36:15

count-non-zero

Time of First Successful Submission: 2025-12-27 18:39:18

string-lower

Time of First Successful Submission: 2025-12-27 18:52:47

most-common-byte

Time of First Successful Submission: 2025-12-27 20:05:29

Exit

Time of First Successful Submission: 2025-12-28 18:57:51

Socket

Time of First Successful Submission: 2025-12-28 19:06:52

Bind

Time of First Successful Submission: 2025-12-28 19:36:09

Listen

Time of First Successful Submission: 2025-12-28 19:38:38

Accept

Time of First Successful Submission: 2025-12-28 19:41:12

Static Response

Time of First Successful Submission: 2025-12-28 20:04:33

Dynamic Response

Time of First Successful Submission: 2025-12-28 20:26:22

Iterative GET Server

Time of First Successful Submission: 2025-12-28 20:33:37

Concurrent GET Server

Time of First Successful Submission: 2025-12-28 20:41:51

Concurrent POST Server

Time of First Successful Submission: 2025-12-28 21:43:14

Web Server

Time of First Successful Submission: 2025-12-28 22:04:35

Debugging Programs

Time of First Successful Submission: 2025-12-27 20:08:18

Inspecting Registers

Time of First Successful Submission: 2025-12-27 20:09:24

Examining Memory

Time of First Successful Submission: 2025-12-27 20:15:59

Setting Breakpoints

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

GDB Scripting

Time of First Successful Submission: 2025-12-27 20:35:50

Modifying Data

Time of First Successful Submission: 2025-12-27 21:29:32

Modifying Execution

Time of First Successful Submission: 2025-12-27 21:30:57

Broken Functions

Time of First Successful Submission: 2025-12-27 21:39:37


Playing With Programs

116 / 116 627 / 23216


What's the password?

Time of First Successful Submission: 2025-12-29 16:45:14

... and again!

Time of First Successful Submission: 2025-12-29 16:46:41

Newline Troubles

Time of First Successful Submission: 2025-12-29 16:49:09

Reasoning about files

Time of First Successful Submission: 2025-12-29 16:50:15

Specifying Filenames

Time of First Successful Submission: 2025-12-29 16:50:56

Binary and Hex Encoding

Time of First Successful Submission: 2025-12-29 17:13:24

More Hex

Time of First Successful Submission: 2025-12-29 17:14:50

Decoding Hex

Time of First Successful Submission: 2025-12-29 17:22:46

Decoding Practice

Time of First Successful Submission: 2025-12-29 17:31:16

Encoding Practice

Time of First Successful Submission: 2025-12-29 17:36:28

Hex-encoding ASCII

Time of First Successful Submission: 2025-12-29 17:42:18

Nested Encoding

Time of First Successful Submission: 2025-12-29 18:00:34

Hex-encoding UTF-8

Time of First Successful Submission: 2025-12-29 18:06:39

UTF Mixups

Time of First Successful Submission: 2025-12-29 18:16:11

Modifying Encoded Data

Time of First Successful Submission: 2025-12-29 18:45:58

Decoding Base64

Time of First Successful Submission: 2025-12-29 18:56:31

Encoding Base64

Time of First Successful Submission: 2025-12-29 18:57:56

Dealing with Obfuscation

Time of First Successful Submission: 2025-12-29 19:00:11

Dealing with Obfuscation 2

Time of First Successful Submission: 2025-12-29 19:08:25

Your First HTTP Request

Time of First Successful Submission: 2025-12-30 15:03:25

Reading Flask

Time of First Successful Submission: 2025-12-30 15:06:36

Commented Data

Time of First Successful Submission: 2025-12-30 15:13:11

HTTP Metadata

Time of First Successful Submission: 2025-12-30 15:15:51

HTTP (netcat)

Time of First Successful Submission: 2025-12-30 15:20:28

HTTP Paths (netcat)

Time of First Successful Submission: 2025-12-30 15:22:03

HTTP (curl)

Time of First Successful Submission: 2025-12-30 15:24:47

HTTP (python)

Time of First Successful Submission: 2025-12-30 15:29:06

HTTP Host Header (python)

Time of First Successful Submission: 2025-12-30 15:38:41

HTTP Host Header (curl)

Time of First Successful Submission: 2025-12-30 15:40:28

HTTP Host Header (netcat)

Time of First Successful Submission: 2025-12-30 15:42:23

URL Encoding (netcat)

Time of First Successful Submission: 2025-12-30 15:45:46

HTTP GET Parameters

Time of First Successful Submission: 2025-12-30 15:47:51

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2025-12-30 15:50:59

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2025-12-30 15:53:07

HTTP Forms

Time of First Successful Submission: 2025-12-30 15:54:50

HTTP Forms (curl)

Time of First Successful Submission: 2025-12-30 15:57:54

HTTP Forms (netcat)

Time of First Successful Submission: 2025-12-30 16:09:05

HTTP Forms (python)

Time of First Successful Submission: 2025-12-30 16:11:50

HTTP Forms Without Forms

Time of First Successful Submission: 2025-12-30 16:19:22

Multiple Form Fields (curl)

Time of First Successful Submission: 2025-12-30 16:21:14

Multiple Form Fields (netcat)

Time of First Successful Submission: 2025-12-30 16:25:37

HTTP Redirects (netcat)

Time of First Successful Submission: 2025-12-30 16:27:41

HTTP Redirects (curl)

Time of First Successful Submission: 2025-12-30 16:29:12

HTTP Redirects (python)

Time of First Successful Submission: 2025-12-30 16:30:50

HTTP Cookies (curl)

Time of First Successful Submission: 2025-12-30 16:33:43

HTTP Cookies (netcat)

Time of First Successful Submission: 2025-12-30 16:36:56

HTTP Cookies (python)

Time of First Successful Submission: 2025-12-30 16:40:28

Server State (python)

Time of First Successful Submission: 2025-12-30 16:46:06

Listening Web

Time of First Successful Submission: 2025-12-30 16:49:05

Speaking Redirects

Time of First Successful Submission: 2025-12-30 16:58:05

JavaScript Redirects

Time of First Successful Submission: 2025-12-30 17:11:35

Including JavaScript

Time of First Successful Submission: 2025-12-30 17:18:10

HTTP (javascript)

Time of First Successful Submission: 2025-12-30 17:24:04

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2025-12-30 17:26:45

HTTP Forms (javascript)

Time of First Successful Submission: 2025-12-30 17:32:00

cat

Time of First Successful Submission: 2025-12-30 17:57:38

more

Time of First Successful Submission: 2025-12-30 17:57:53

less

Time of First Successful Submission: 2025-12-30 17:58:12

tail

Time of First Successful Submission: 2025-12-30 17:58:35

head

Time of First Successful Submission: 2025-12-30 17:58:50

sort

Time of First Successful Submission: 2025-12-30 17:59:04

vim

Time of First Successful Submission: 2025-12-30 17:59:21

emacs

Time of First Successful Submission: 2025-12-30 17:59:39

nano

Time of First Successful Submission: 2025-12-30 18:00:15

rev

Time of First Successful Submission: 2025-12-30 18:00:36

od

Time of First Successful Submission: 2025-12-30 18:07:50

hd

Time of First Successful Submission: 2025-12-30 18:15:57

xxd

Time of First Successful Submission: 2025-12-30 18:16:17

base32

Time of First Successful Submission: 2025-12-30 18:16:35

base64

Time of First Successful Submission: 2025-12-30 18:16:57

split

Time of First Successful Submission: 2025-12-30 18:19:03

gzip

Time of First Successful Submission: 2025-12-30 18:21:56

bzip2

Time of First Successful Submission: 2025-12-30 18:23:53

zip

Time of First Successful Submission: 2025-12-30 18:26:10

tar

Time of First Successful Submission: 2025-12-30 18:31:44

ar

Time of First Successful Submission: 2025-12-30 18:34:43

cpio

Time of First Successful Submission: 2025-12-30 18:42:18

genisoimage

Time of First Successful Submission: 2025-12-30 18:45:02

env

Time of First Successful Submission: 2025-12-30 18:46:07

find

Time of First Successful Submission: 2025-12-30 18:54:44

make

Time of First Successful Submission: 2025-12-30 18:55:17

nice

Time of First Successful Submission: 2025-12-30 18:55:57

timeout

Time of First Successful Submission: 2025-12-30 18:56:42

stdbuf

Time of First Successful Submission: 2025-12-30 18:57:57

setarch

Time of First Successful Submission: 2025-12-30 18:58:53

watch

Time of First Successful Submission: 2025-12-30 18:59:59

socat

Time of First Successful Submission: 2025-12-30 19:02:20

whiptail

Time of First Successful Submission: 2025-12-30 19:03:24

awk

Time of First Successful Submission: 2025-12-30 19:06:40

sed

Time of First Successful Submission: 2025-12-30 19:08:51

ed

Time of First Successful Submission: 2025-12-30 19:13:59

chown

Time of First Successful Submission: 2025-12-30 19:17:41

chmod

Time of First Successful Submission: 2025-12-30 19:18:09

cp

Time of First Successful Submission: 2025-12-30 19:22:01

mv

Time of First Successful Submission: 2025-12-30 19:44:00

perl

Time of First Successful Submission: 2025-12-30 19:44:40

python

Time of First Successful Submission: 2025-12-30 19:46:17

ruby

Time of First Successful Submission: 2025-12-30 19:47:38

bash

Time of First Successful Submission: 2025-12-30 19:48:59

date

Time of First Successful Submission: 2025-12-30 19:51:20

dmesg

Time of First Successful Submission: 2025-12-30 19:52:57

wc

Time of First Successful Submission: 2025-12-30 19:54:21

gcc

Time of First Successful Submission: 2025-12-30 20:09:17

as

Time of First Successful Submission: 2025-12-30 20:10:07

wget

Time of First Successful Submission: 2025-12-30 20:30:01

ssh-keygen

Time of First Successful Submission: 2025-12-30 21:21:10

SQL Queries

Time of First Successful Submission: 2025-12-30 21:30:00

Filtering SQL

Time of First Successful Submission: 2025-12-30 21:31:08

Choosing Columns

Time of First Successful Submission: 2025-12-30 21:32:34

Exclusionary Filtering

Time of First Successful Submission: 2025-12-30 21:33:23

Filtering Strings

Time of First Successful Submission: 2025-12-30 21:35:13

Filtering on Expressions

Time of First Successful Submission: 2025-12-30 21:38:17

SELECTing Expressions

Time of First Successful Submission: 2025-12-30 21:46:08

Composite Conditions

Time of First Successful Submission: 2025-12-30 21:50:12

Reaching Your LIMITs

Time of First Successful Submission: 2025-12-30 21:52:47

Querying Metadata

Time of First Successful Submission: 2025-12-30 21:56:32


GCA CTF

12 / 104 1902 / 42808


Using the Terminal

Time of First Successful Submission: 2025-12-24 15:29:43

Using the VSCode Workspace

Time of First Successful Submission: 2025-12-24 15:31:27

Using the GUI Desktop

Time of First Successful Submission: 2025-12-24 15:32:38

Pasting into the Desktop

Time of First Successful Submission: 2025-12-24 15:33:37

Connecting over SSH

Time of First Successful Submission: 2026-03-12 18:38:05

Restarting Challenges

Time of First Successful Submission: 2025-12-24 15:36:02

Getting Help

Time of First Successful Submission: 2025-12-24 15:37:12

Challenge Programs

Time of First Successful Submission: 2025-12-24 15:37:57

The Flag File

Time of First Successful Submission: 2025-12-24 15:38:50

Using Privileged Mode

Time of First Successful Submission: 2025-12-24 15:41:54

Persistent Home Directories - One

Time of First Successful Submission: 2025-12-24 15:44:44

Persistent Home Directories - Two

Time of First Successful Submission: 2025-12-24 15:45:32