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30 / 232 12338 / 25863


set-register

Time of First Successful Submission: 2026-06-04 07:53:35

set-multiple-registers

Time of First Successful Submission: 2026-06-04 07:55:02

add-to-register

Time of First Successful Submission: 2026-06-04 07:56:46

linear-equation-registers

Time of First Successful Submission: 2026-06-04 07:58:12

integer-division

Time of First Successful Submission: 2026-06-04 09:23:45

modulo-operation

Time of First Successful Submission: 2026-06-04 09:25:30

set-upper-byte

Time of First Successful Submission: 2026-06-04 09:31:08

efficient-modulo

Time of First Successful Submission: 2026-06-04 09:40:40

byte-extraction

Time of First Successful Submission: 2026-06-04 11:18:52

bitwise-and

Time of First Successful Submission: 2026-06-04 11:24:24

check-even

Time of First Successful Submission: 2026-06-04 11:29:46

memory-read

Time of First Successful Submission: 2026-06-04 11:32:03

memory-write

Time of First Successful Submission: 2026-06-04 11:34:04

memory-increment

Time of First Successful Submission: 2026-06-04 11:36:59

byte-access

Time of First Successful Submission: 2026-06-04 11:38:19

memory-size-access

Time of First Successful Submission: 2026-06-04 11:39:47

little-endian-write

Time of First Successful Submission: 2026-06-04 11:49:30

memory-sum

Time of First Successful Submission: 2026-06-04 11:56:19

stack-subtraction

Time of First Successful Submission: 2026-06-04 12:02:56

swap-stack-values

Time of First Successful Submission: 2026-06-04 12:07:02

average-stack-values

Time of First Successful Submission: 2026-06-04 12:11:33

absolute-jump

Time of First Successful Submission: 2026-06-04 12:12:36

relative-jump

Time of First Successful Submission: 2026-06-04 12:17:26

jump-trampoline

Time of First Successful Submission: 2026-06-04 12:25:35

conditional-jump

Time of First Successful Submission: 2026-06-04 12:47:19

indirect-jump

Time of First Successful Submission: 2026-06-04 12:57:22

average-loop

Time of First Successful Submission: 2026-06-04 13:03:43

count-non-zero

Time of First Successful Submission: 2026-06-04 13:11:10

string-lower

Time of First Successful Submission: 2026-06-04 13:53:47

most-common-byte

Time of First Successful Submission: 2026-06-04 14:02:13


Intro to Programming Languages

15 / 253 10767 / 44342


Commands

Time of First Successful Submission: 2026-05-13 09:35:17

Command Arguments

Time of First Successful Submission: 2026-05-13 09:36:46

Command History

Time of First Successful Submission: 2026-05-13 09:40:07

The Root Path

Time of First Successful Submission: 2026-05-13 10:47:36

Absolute Paths

Time of First Successful Submission: 2026-05-13 10:48:12

Changing position

Time of First Successful Submission: 2026-05-13 10:53:48

Changing to an Absolute Path

Time of First Successful Submission: 2026-05-13 10:55:51

Relative Paths

Time of First Successful Submission: 2026-05-13 11:04:15

Cat

Time of First Successful Submission: 2026-05-13 11:22:18

Ls

Time of First Successful Submission: 2026-05-13 11:28:34

Ls All

Time of First Successful Submission: 2026-05-13 11:37:35

Find

Time of First Successful Submission: 2026-05-13 12:08:42

Piping Echo

Time of First Successful Submission: 2026-05-15 11:05:55

Piping Stdout

Time of First Successful Submission: 2026-05-15 11:13:50

Piping Stdin

Time of First Successful Submission: 2026-05-15 11:24:39


Intro to Cybersecurity

183 / 183 267 / 23232


Path Traversal 1

Time of First Successful Submission: 2026-08-11 06:34:22

Path Traversal 2

Time of First Successful Submission: 2026-08-11 06:44:18

CMDi 1

Time of First Successful Submission: 2026-08-11 07:04:05

CMDi 2

Time of First Successful Submission: 2026-08-11 07:14:30

CMDi 3

Time of First Successful Submission: 2026-08-11 07:21:46

CMDi 4

Time of First Successful Submission: 2026-08-11 07:26:59

CMDi 5

Time of First Successful Submission: 2026-08-11 07:38:04

CMDi 6

Time of First Successful Submission: 2026-08-11 07:42:07

Authentication Bypass 1

Time of First Successful Submission: 2026-08-11 07:46:05

Authentication Bypass 2

Time of First Successful Submission: 2026-08-11 07:50:00

SQLi 1

Time of First Successful Submission: 2026-08-11 10:18:38

SQLi 2

Time of First Successful Submission: 2026-08-11 10:26:32

SQLi 3

Time of First Successful Submission: 2026-08-11 10:34:48

SQLi 4

Time of First Successful Submission: 2026-08-11 10:47:14

SQLi 5

Time of First Successful Submission: 2026-08-11 11:02:30

XSS 1

Time of First Successful Submission: 2026-08-11 16:15:34

XSS 2

Time of First Successful Submission: 2026-08-11 16:49:17

XSS 3

Time of First Successful Submission: 2026-08-11 17:01:18

XSS 4

Time of First Successful Submission: 2026-08-11 17:09:17

XSS 5

Time of First Successful Submission: 2026-08-11 18:02:24

XSS 6

Time of First Successful Submission: 2026-08-11 18:13:08

XSS 7

Time of First Successful Submission: 2026-08-11 18:27:56

CSRF 1

Time of First Successful Submission: 2026-08-12 08:05:17

CSRF 2

Time of First Successful Submission: 2026-08-12 08:24:23

CSRF 3

Time of First Successful Submission: 2026-08-12 09:08:37

CSRF 4

Time of First Successful Submission: 2026-08-12 09:20:38

CSRF 5

Time of First Successful Submission: 2026-08-12 09:34:02

Connect

Time of First Successful Submission: 2026-08-12 09:47:42

Send

Time of First Successful Submission: 2026-08-12 09:50:53

Shutdown

Time of First Successful Submission: 2026-08-12 09:53:31

Listen

Time of First Successful Submission: 2026-08-12 09:57:10

Scan 1

Time of First Successful Submission: 2026-08-12 10:04:09

Scan 2

Time of First Successful Submission: 2026-08-12 10:18:17

Monitor 1

Time of First Successful Submission: 2026-08-12 10:31:16

Monitor 2

Time of First Successful Submission: 2026-08-12 11:28:28

Sniffing Cookies

Time of First Successful Submission: 2026-08-13 09:11:25

Network Configuration

Time of First Successful Submission: 2026-08-13 09:32:13

Firewall 1

Time of First Successful Submission: 2026-08-13 09:37:13

Firewall 2

Time of First Successful Submission: 2026-08-13 09:56:12

Firewall 3

Time of First Successful Submission: 2026-08-13 09:59:37

Denial of Service 1

Time of First Successful Submission: 2026-08-13 10:43:13

Denial of Service 2

Time of First Successful Submission: 2026-08-13 10:53:25

Denial of Service 3

Time of First Successful Submission: 2026-08-13 11:02:52

Ethernet

Time of First Successful Submission: 2026-08-13 11:23:51

IP

Time of First Successful Submission: 2026-08-13 11:27:32

TCP

Time of First Successful Submission: 2026-08-13 16:56:29

TCP Handshake

Time of First Successful Submission: 2026-08-13 17:06:43

UDP

Time of First Successful Submission: 2026-08-13 17:38:01

UDP 2

Time of First Successful Submission: 2026-08-13 17:51:20

UDP Spoofing 1

Time of First Successful Submission: 2026-08-13 17:58:17

UDP Spoofing 2

Time of First Successful Submission: 2026-08-13 18:12:16

UDP Spoofing 3

Time of First Successful Submission: 2026-08-13 18:21:19

UDP Spoofing 4

Time of First Successful Submission: 2026-08-13 18:35:41

ARP

Time of First Successful Submission: 2026-08-13 18:47:03

Intercept

Time of First Successful Submission: 2026-08-13 19:34:45

Man-in-the-Middle

Time of First Successful Submission: 2026-08-14 05:23:13

XOR

Time of First Successful Submission: 2026-08-14 08:05:39

XORing Hex

Time of First Successful Submission: 2026-08-14 08:09:06

XORing ASCII

Time of First Successful Submission: 2026-08-15 07:56:28

XORing ASCII Strings

Time of First Successful Submission: 2026-08-15 08:07:25

One-time Pad

Time of First Successful Submission: 2026-08-15 08:09:07

One-time Pad Tampering

Time of First Successful Submission: 2026-08-15 08:15:16

Many-time Pad

Time of First Successful Submission: 2026-08-15 08:18:58

AES

Time of First Successful Submission: 2026-08-15 08:25:29

AES-ECB-CPA

Time of First Successful Submission: 2026-08-15 08:41:03

AES-ECB-CPA-HTTP

Time of First Successful Submission: 2026-08-15 08:46:37

AES-ECB-CPA-HTTP (base64)

Time of First Successful Submission: 2026-08-15 08:58:14

AES-ECB-CPA-Suffix

Time of First Successful Submission: 2026-08-15 09:12:48

AES-ECB-CPA-Prefix

Time of First Successful Submission: 2026-08-15 10:11:51

AES-ECB-CPA-Prefix-2

Time of First Successful Submission: 2026-08-15 10:12:59

AES-ECB-CPA-Prefix-Miniboss

Time of First Successful Submission: 2026-08-15 10:30:31

AES-ECB-CPA-Prefix-Boss

Time of First Successful Submission: 2026-08-15 10:45:32

AES-CBC

Time of First Successful Submission: 2026-08-15 11:07:30

AES-CBC Tampering

Time of First Successful Submission: 2026-08-15 11:17:40

AES-CBC Resizing

Time of First Successful Submission: 2026-08-15 11:20:30

AES-CBC-POA-Partial-Block

Time of First Successful Submission: 2026-08-15 11:36:50

AES-CBC-POA-Full-Block

Time of First Successful Submission: 2026-08-15 12:51:12

AES-CBC-POA-Multi-Block

Time of First Successful Submission: 2026-08-15 13:01:38

AES-CBC-POA-Encrypt

Time of First Successful Submission: 2026-08-15 17:00:43

AES-CBC-POA-Encrypt-2

Time of First Successful Submission: 2026-08-15 17:01:50

DHKE

Time of First Successful Submission: 2026-08-15 17:22:50

DHKE-to-AES

Time of First Successful Submission: 2026-08-15 17:43:01

RSA 1

Time of First Successful Submission: 2026-08-15 18:10:20

RSA 2

Time of First Successful Submission: 2026-08-15 18:17:13

RSA 3

Time of First Successful Submission: 2026-08-15 18:27:49

RSA 4

Time of First Successful Submission: 2026-08-15 18:42:11

RSA Signatures

Time of First Successful Submission: 2026-08-15 18:51:41

SHA 1

Time of First Successful Submission: 2026-08-15 19:06:33

SHA 2

Time of First Successful Submission: 2026-08-15 19:09:45

TLS 1

Time of First Successful Submission: 2026-08-17 08:52:47

TLS 2

Time of First Successful Submission: 2026-08-17 08:59:08

level1

Time of First Successful Submission: 2026-08-17 09:00:52

level2

Time of First Successful Submission: 2026-08-17 09:02:05

level3

Time of First Successful Submission: 2026-08-17 09:05:00

level4

Time of First Successful Submission: 2026-08-17 09:05:38

level5

Time of First Successful Submission: 2026-08-17 09:06:29

level6

Time of First Successful Submission: 2026-08-17 09:08:29

level7

Time of First Successful Submission: 2026-08-17 09:09:47

level8

Time of First Successful Submission: 2026-08-17 09:10:53

level9

Time of First Successful Submission: 2026-08-17 09:14:07

level10

Time of First Successful Submission: 2026-08-17 09:17:49

level11

Time of First Successful Submission: 2026-08-17 09:23:12

level12

Time of First Successful Submission: 2026-08-17 09:27:25

level13

Time of First Successful Submission: 2026-08-17 09:28:40

level14

Time of First Successful Submission: 2026-08-17 09:30:45

level15

Time of First Successful Submission: 2026-08-17 09:32:54

level16

Time of First Successful Submission: 2026-08-17 09:35:45

level17

Time of First Successful Submission: 2026-08-17 09:39:30

level18

Time of First Successful Submission: 2026-08-17 09:40:51

level19

Time of First Successful Submission: 2026-08-17 09:45:53

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2026-08-17 09:51:25

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2026-08-17 09:53:49

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2026-08-17 09:58:43

Reading Endianness (Python)

Time of First Successful Submission: 2026-08-17 13:44:49

Reading Endianness (C)

Time of First Successful Submission: 2026-08-17 13:48:19

Reading Endianness (x86)

Time of First Successful Submission: 2026-08-17 13:52:57

Version Information (Python)

Time of First Successful Submission: 2026-08-17 18:08:41

Version Information (C)

Time of First Successful Submission: 2026-08-17 18:07:56

Version Information (x86)

Time of First Successful Submission: 2026-08-17 18:15:18

Metadata and Data (Python)

Time of First Successful Submission: 2026-08-17 18:22:21

Metadata and Data (C)

Time of First Successful Submission: 2026-08-17 18:32:18

Metadata and Data (x86)

Time of First Successful Submission: 2026-08-17 18:35:54

Input Restrictions (Python)

Time of First Successful Submission: 2026-08-18 07:57:47

Input Restrictions (C)

Time of First Successful Submission: 2026-08-18 08:04:09

Input Restrictions (x86)

Time of First Successful Submission: 2026-08-18 08:12:21

Behold the cIMG! (Python)

Time of First Successful Submission: 2026-08-18 08:28:12

Behold the cIMG! (C)

Time of First Successful Submission: 2026-08-18 08:40:17

Behold the cIMG! (x86)

Time of First Successful Submission: 2026-08-18 08:53:16

A Basic cIMG (Python)

Time of First Successful Submission: 2026-08-18 09:06:18

A Basic cIMG (C)

Time of First Successful Submission: 2026-08-18 09:19:17

A Basic cIMG (x86)

Time of First Successful Submission: 2026-08-18 18:14:26

Internal State Mini (C)

Time of First Successful Submission: 2026-08-18 18:32:17

Internal State Mini (x86)

Time of First Successful Submission: 2026-08-18 19:14:31

Internal State (C)

Time of First Successful Submission: 2026-08-19 08:33:38

Internal State (x86)

Time of First Successful Submission: 2026-08-19 08:50:41

File Formats: Directives (C)

Time of First Successful Submission: 2026-08-19 08:59:02

File Formats: Directives (x86)

Time of First Successful Submission: 2026-08-19 09:09:57

The Patch Directive

Time of First Successful Submission: 2026-08-19 17:16:13

Optimizing for Space

Time of First Successful Submission: 2026-08-19 17:33:01

Tweaking Images

Time of First Successful Submission: 2026-08-19 17:43:29

Storage and Retrieval

Time of First Successful Submission: 2026-08-19 18:11:08

Extracting Knowledge

Time of First Successful Submission: 2026-08-19 18:31:02

Advanced Sprites

Time of First Successful Submission: 2026-08-19 18:52:57

Accessing Resources

Time of First Successful Submission: 2026-08-19 19:03:28

Unsafe Animations

Time of First Successful Submission: 2026-08-19 19:20:30

Animations

Time of First Successful Submission: 2026-08-19 19:33:25

Interoperability: Patching Data

Time of First Successful Submission: 2026-08-20 06:38:01

Patching Code

Time of First Successful Submission: 2026-08-20 18:32:21

Patching Control Flow

Time of First Successful Submission: 2026-08-20 19:00:31

Your First Overflow (easy)

Time of First Successful Submission: 2026-08-18 19:23:10

Your First Overflow (hard)

Time of First Successful Submission: 2026-08-18 19:24:42

Precision (easy)

Time of First Successful Submission: 2026-08-20 19:13:34

Precision (hard)

Time of First Successful Submission: 2026-08-20 19:24:09

Variable Control (easy)

Time of First Successful Submission: 2026-08-21 17:48:56

Variable Control (hard)

Time of First Successful Submission: 2026-08-21 18:07:09

Control Hijack (easy)

Time of First Successful Submission: 2026-08-21 18:19:29

Control Hijack (hard)

Time of First Successful Submission: 2026-08-21 18:27:50

Tricky Control Hijack (easy)

Time of First Successful Submission: 2026-08-21 18:39:20

Tricky Control Hijack (hard)

Time of First Successful Submission: 2026-08-21 18:48:35

PIEs (easy)

Time of First Successful Submission: 2026-08-21 19:05:57

PIEs (hard)

Time of First Successful Submission: 2026-08-21 19:16:17

String Lengths (easy)

Time of First Successful Submission: 2026-08-21 19:32:16

String Lengths (hard)

Time of First Successful Submission: 2026-08-21 19:43:05

Basic Shellcode

Time of First Successful Submission: 2026-08-22 09:33:57

NOP Sleds

Time of First Successful Submission: 2026-08-22 09:38:08

NULL-Free Shellcode

Time of First Successful Submission: 2026-08-22 09:43:18

Hijack to (Mapped) Shellcode (easy)

Time of First Successful Submission: 2026-08-22 09:56:38

Hijack to (Mapped) Shellcode (hard)

Time of First Successful Submission: 2026-08-22 10:04:36

Hijack to Shellcode (easy)

Time of First Successful Submission: 2026-08-22 10:13:05

Hijack to Shellcode (hard)

Time of First Successful Submission: 2026-08-22 10:51:42

ECB-to-Win (easy)

Time of First Successful Submission: 2026-08-22 12:24:49

ECB-to-Win (hard)

Time of First Successful Submission: 2026-08-22 12:57:08

ECB-to-Shellcode (easy)

Time of First Successful Submission: 2026-08-22 13:41:52

ECB-to-Shellcode (hard)

Time of First Successful Submission: 2026-08-22 14:04:56

CIMG Screenshots

Time of First Successful Submission: 2026-08-22 14:37:40

CIMG Screenshots 2

Time of First Successful Submission: 2026-08-22 15:19:49

Wily Webserver

Time of First Successful Submission: 2026-08-22 18:21:26

The Watering Hole

Time of First Successful Submission: 2026-08-22 19:18:34

Secure Chat 1

Time of First Successful Submission: 2026-08-23 09:55:00

Secure Chat 2

Time of First Successful Submission: 2026-08-23 10:42:19

Secure Chat 3

Time of First Successful Submission: 2026-08-23 16:09:55

Secure Chat 4

Time of First Successful Submission: 2026-08-23 16:43:16

Secure Chat 5

Time of First Successful Submission: 2026-08-23 17:01:38


Program Security

79 / 159 1066 / 10490


ello ackers!

Time of First Successful Submission: 2026-08-24 14:03:05

Syscall Smuggler

Time of First Successful Submission: 2026-08-24 14:10:51

Syscall Shenanigans

Time of First Successful Submission: 2026-08-24 14:35:54

Byte Budget

Time of First Successful Submission: 2026-08-25 17:31:46

ClobberCode

Time of First Successful Submission: 2026-08-25 18:16:55

Diverse Delivery

Time of First Successful Submission: 2026-08-25 18:23:36

Pocket Payload

Time of First Successful Submission: 2026-08-25 18:50:27

Micro Menace

Time of First Successful Submission: 2026-08-25 19:19:04

Login Leakage (Easy)

Time of First Successful Submission: 2026-08-26 16:00:59

Login Leakage (Hard)

Time of First Successful Submission: 2026-08-26 16:05:50

Bounds Breaker (Easy)

Time of First Successful Submission: 2026-08-26 16:23:57

Bounds Breaker (Hard)

Time of First Successful Submission: 2026-08-26 16:31:46

Casting Catastrophe (Easy)

Time of First Successful Submission: 2026-08-26 16:48:11

Casting Catastrophe (Hard)

Time of First Successful Submission: 2026-08-26 16:55:21

Pointer Problems (Easy)

Time of First Successful Submission: 2026-08-26 17:12:52

Pointer Problems (Hard)

Time of First Successful Submission: 2026-08-26 17:32:06

Anomalous Array (Easy)

Time of First Successful Submission: 2026-08-27 16:08:23

Anomalous Array (Hard)

Time of First Successful Submission: 2026-08-27 16:10:10

Now you got it (Easy)

Time of First Successful Submission: 2026-08-27 16:57:28

Now you got it (Hard)

Time of First Successful Submission: 2026-08-27 17:18:41

Loop Lunacy (Easy)

Time of First Successful Submission: 2026-08-27 18:10:45

Loop Lunacy (Hard)

Time of First Successful Submission: 2026-08-27 18:37:21

Nosy Neighbor (Easy)

Time of First Successful Submission: 2026-08-27 18:48:49

Nosy Neighbor (Hard)

Time of First Successful Submission: 2026-08-27 18:52:04

Recursive Ruin (Easy)

Time of First Successful Submission: 2026-08-27 19:16:31

Recursive Ruin (Hard)

Time of First Successful Submission: 2026-08-27 19:22:53

Lingering Leftover (Easy)

Time of First Successful Submission: 2026-08-27 19:31:13

Lingering Leftover (Hard)

Time of First Successful Submission: 2026-08-27 19:43:25

Latent Leak (Easy)

Time of First Successful Submission: 2026-08-27 20:03:02

Latent Leak (Hard)

Time of First Successful Submission: 2026-08-27 20:38:31

Fork Foolery (Easy)

Time of First Successful Submission: 2026-08-28 09:30:50

Fork Foolery (Hard)

Time of First Successful Submission: 2026-08-28 09:47:49

Canary Conundrum (Easy)

Time of First Successful Submission: 2026-08-28 10:05:33

Canary Conundrum (Hard)

Time of First Successful Submission: 2026-08-28 10:14:31

A Crafty Clobber (Easy)

Time of First Successful Submission: 2026-08-28 10:29:36

A Crafty Clobber (Hard)

Time of First Successful Submission: 2026-08-28 10:43:11

Can It Fizz?

Time of First Successful Submission: 2026-08-28 13:10:51

Does It Buzz?

Time of First Successful Submission: 2026-08-28 14:20:22

Make It FizzBuzz

Time of First Successful Submission: 2026-08-28 16:29:01

Terrible Token (Easy)

Time of First Successful Submission: 2026-08-28 19:02:03

Terrible Token (Hard)

Time of First Successful Submission: 2026-08-28 19:07:37

Tangled Ticket (Easy)

Time of First Successful Submission: 2026-08-29 11:17:52

Tangled Ticket (Hard)

Time of First Successful Submission: 2026-08-29 11:26:40

Bit Bender

Time of First Successful Submission: 2026-08-29 13:16:37

Substitution Sorcery

Time of First Successful Submission: 2026-08-29 12:11:24

Meager Mangler (Easy)

Time of First Successful Submission: 2026-09-01 04:52:33

Meager Mangler (Hard)

Time of First Successful Submission: 2026-09-01 05:21:03

Monstrous Mangler (Easy)

Time of First Successful Submission: 2026-09-01 07:54:04

Monstrous Mangler (Hard)

Time of First Successful Submission: 2026-09-01 09:22:34

Patched Up (Easy)

Time of First Successful Submission: 2026-09-01 16:32:51

Patched Up (Hard)

Time of First Successful Submission: 2026-09-01 16:41:18

Puzzle Patch (Easy)

Time of First Successful Submission: 2026-09-03 11:50:30

Puzzle Patch (Hard)

Time of First Successful Submission: 2026-09-03 13:21:37

Patch Perfect (Easy)

Time of First Successful Submission: 2026-09-03 13:44:14

Patch Perfect (Hard)

Time of First Successful Submission: 2026-09-03 14:15:23

Trust the Yancode (Easy)

Time of First Successful Submission: 2026-09-03 15:20:58

Trust the Yancode (Hard)

Time of First Successful Submission: 2026-09-04 05:15:24

Know the Yancode (Easy)

Time of First Successful Submission: 2026-09-04 05:19:07

Know the Yancode (Hard)

Time of First Successful Submission: 2026-09-04 05:25:27

Master the Yancode (Easy)

Time of First Successful Submission: 2026-09-04 06:40:46

Master the Yancode (Hard)

Time of First Successful Submission: 2026-09-04 06:55:50

Transcend the Yancode (Easy)

Time of First Successful Submission: 2026-09-04 07:17:44

Transcend the Yancode (Hard)

Time of First Successful Submission: 2026-09-04 07:31:38

The Yanalyzer (Easy)

Time of First Successful Submission: 2026-09-04 08:42:03

The Yanalyzer (Hard)

Time of First Successful Submission: 2026-09-04 11:41:40

The Yangler (Easy)

Time of First Successful Submission: 2026-09-05 06:16:43

The Yangler (Hard)

Time of First Successful Submission: 2026-09-05 06:33:09

Yancraft (Easy)

Time of First Successful Submission: 2026-09-05 11:07:21

Yancraft (Hard)

Time of First Successful Submission: 2026-09-05 11:33:05

Yansanity (Easy)

Time of First Successful Submission: 2026-09-05 12:20:09

Yansanity (Hard)

Time of First Successful Submission: 2026-09-05 13:10:03

When the Cow Says Moo

Time of First Successful Submission: 2026-09-05 13:33:13

Predictable Migration

Time of First Successful Submission: 2026-09-05 13:55:22

Hashing Heifers

Time of First Successful Submission: 2026-09-05 14:19:37

Salty Stampede

Time of First Successful Submission: 2026-09-05 15:17:33

Loose Link (Easy)

Time of First Successful Submission: 2026-09-07 04:50:05

Loose Link (Hard)

Time of First Successful Submission: 2026-09-07 04:55:39

Call Chain (Easy)

Time of First Successful Submission: 2026-09-07 05:11:27

Call Chain (Hard)

Time of First Successful Submission: 2026-09-07 05:24:31

Chain of Command (Easy)

Time of First Successful Submission: 2026-09-07 05:45:24

Chain of Command (Hard)

Time of First Successful Submission: 2026-09-07 05:53:29

Stop, Pop, and ROP (Easy)

Time of First Successful Submission: 2026-09-07 06:38:55


Start Here

10 / 10 11636 / 60717


Using the Terminal

Time of First Successful Submission: 2026-05-13 08:28:40

Using the VSCode Workspace

Time of First Successful Submission: 2026-05-13 08:33:31

Using the GUI Desktop

Time of First Successful Submission: 2026-05-13 08:38:36

Pasting into the Desktop

Time of First Successful Submission: 2026-05-13 08:40:45

Restarting Challenges

Time of First Successful Submission: 2026-05-13 08:45:50

Challenge Programs

Time of First Successful Submission: 2026-05-13 08:49:19

The Flag File

Time of First Successful Submission: 2026-05-13 08:50:55

Using Privileged Mode

Time of First Successful Submission: 2026-05-13 08:55:00

Persistent Home Directories - One

Time of First Successful Submission: 2026-05-13 09:05:28

Persistent Home Directories - Two

Time of First Successful Submission: 2026-05-13 09:06:34


Linux Luminarium

128 / 128 3316 / 44986


Intro to Commands

Time of First Successful Submission: 2026-05-13 09:35:17

Intro to Arguments

Time of First Successful Submission: 2026-05-13 09:36:46

Command History

Time of First Successful Submission: 2026-05-13 09:40:07

The Root

Time of First Successful Submission: 2026-05-13 10:47:36

Program and absolute paths

Time of First Successful Submission: 2026-05-13 10:48:12

Position thy self

Time of First Successful Submission: 2026-05-13 10:53:48

Position elsewhere

Time of First Successful Submission: 2026-05-13 10:55:51

implicit relative paths, from /

Time of First Successful Submission: 2026-05-13 11:04:15

explicit relative paths, from /

Time of First Successful Submission: 2026-05-13 11:05:00

implicit relative path

Time of First Successful Submission: 2026-05-13 11:07:38

home sweet home

Time of First Successful Submission: 2026-05-13 11:15:35

cat: not the pet, but the command!

Time of First Successful Submission: 2026-05-13 11:22:18

catting absolute paths

Time of First Successful Submission: 2026-05-13 11:22:44

more catting practice

Time of First Successful Submission: 2026-05-13 11:23:32

grepping for a needle in a haystack

Time of First Successful Submission: 2026-05-13 11:25:03

comparing files

Time of First Successful Submission: 2026-05-13 11:27:24

listing files

Time of First Successful Submission: 2026-05-13 11:28:34

touching files

Time of First Successful Submission: 2026-05-13 11:29:37

removing files

Time of First Successful Submission: 2026-05-13 11:31:41

moving files

Time of First Successful Submission: 2026-05-13 11:32:51

copying files

Time of First Successful Submission: 2026-05-13 11:33:47

hidden files

Time of First Successful Submission: 2026-05-13 11:37:35

An Epic Filesystem Quest

Time of First Successful Submission: 2026-05-13 12:02:05

making directories

Time of First Successful Submission: 2026-05-13 12:03:35

finding files

Time of First Successful Submission: 2026-05-13 12:08:42

linking files

Time of First Successful Submission: 2026-05-13 12:18:40

Learning From Documentation

Time of First Successful Submission: 2026-05-13 12:26:12

Learning Complex Usage

Time of First Successful Submission: 2026-05-13 12:30:05

Reading Manuals

Time of First Successful Submission: 2026-05-14 09:22:18

Searching Manuals

Time of First Successful Submission: 2026-05-14 09:26:35

Searching For Manuals

Time of First Successful Submission: 2026-05-15 08:58:40

Helpful Programs

Time of First Successful Submission: 2026-05-15 09:19:10

Help for Builtins

Time of First Successful Submission: 2026-05-15 09:26:45

Matching with *

Time of First Successful Submission: 2026-05-15 09:29:29

Matching with ?

Time of First Successful Submission: 2026-05-15 09:30:53

Matching with []

Time of First Successful Submission: 2026-05-15 09:44:52

Matching paths with []

Time of First Successful Submission: 2026-05-15 09:36:15

Multiple globs

Time of First Successful Submission: 2026-05-15 09:38:45

Mixing globs

Time of First Successful Submission: 2026-05-15 09:52:14

Exclusionary globbing

Time of First Successful Submission: 2026-05-15 09:54:59

Tab completion

Time of First Successful Submission: 2026-05-15 09:55:46

Multiple options for tab completion

Time of First Successful Submission: 2026-05-15 11:03:37

Tab completion on commands

Time of First Successful Submission: 2026-05-15 11:04:21

Redirecting output

Time of First Successful Submission: 2026-05-15 11:05:55

Redirecting more output

Time of First Successful Submission: 2026-05-15 11:13:50

Appending output

Time of First Successful Submission: 2026-05-15 11:15:38

Redirecting errors

Time of First Successful Submission: 2026-05-15 11:22:37

Redirecting input

Time of First Successful Submission: 2026-05-15 11:24:39

Grepping stored results

Time of First Successful Submission: 2026-05-15 11:27:29

Grepping live output

Time of First Successful Submission: 2026-05-15 11:29:41

Grepping errors

Time of First Successful Submission: 2026-05-15 11:31:55

Filtering with grep -v

Time of First Successful Submission: 2026-05-15 11:33:56

Filtering with sed

Time of First Successful Submission: 2026-05-15 11:42:39

Duplicating piped data with tee

Time of First Successful Submission: 2026-05-15 12:08:01

Process substitution for input

Time of First Successful Submission: 2026-05-15 12:13:19

Writing to multiple programs

Time of First Successful Submission: 2026-05-15 12:22:27

Split-piping stderr and stdout

Time of First Successful Submission: 2026-05-15 12:32:50

Named pipes

Time of First Successful Submission: 2026-05-15 12:41:45

Printing Variables

Time of First Successful Submission: 2026-05-16 05:45:21

Setting Variables

Time of First Successful Submission: 2026-05-16 05:46:48

Multi-word Variables

Time of First Successful Submission: 2026-05-16 05:47:55

Exporting Variables

Time of First Successful Submission: 2026-05-16 05:53:01

Printing Exported Variables

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

Storing Command Output

Time of First Successful Submission: 2026-05-16 05:55:15

Reading Input

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

Reading Files

Time of First Successful Submission: 2026-05-16 05:59:13

Translating characters

Time of First Successful Submission: 2026-05-16 06:02:58

Deleting characters

Time of First Successful Submission: 2026-05-16 06:03:54

Deleting newlines

Time of First Successful Submission: 2026-05-16 06:48:51

Extracting the first lines with head

Time of First Successful Submission: 2026-05-16 06:49:54

Extracting specific sections of text

Time of First Successful Submission: 2026-05-16 06:55:42

Sorting data

Time of First Successful Submission: 2026-05-16 07:32:58

Listing Processes

Time of First Successful Submission: 2026-05-28 08:49:39

Killing Processes

Time of First Successful Submission: 2026-05-28 08:52:02

Interrupting Processes

Time of First Successful Submission: 2026-05-28 08:52:56

Killing Misbehaving Processes

Time of First Successful Submission: 2026-05-28 09:39:40

Suspending Processes

Time of First Successful Submission: 2026-05-28 09:40:55

Resuming Processes

Time of First Successful Submission: 2026-05-28 09:42:43

Backgrounding Processes

Time of First Successful Submission: 2026-05-28 12:44:51

Foregrounding Processes

Time of First Successful Submission: 2026-05-28 12:46:58

Starting Backgrounded Processes

Time of First Successful Submission: 2026-05-28 12:49:11

Process Exit Codes

Time of First Successful Submission: 2026-05-28 12:52:27

Becoming root with su

Time of First Successful Submission: 2026-05-29 07:08:35

Other users with su

Time of First Successful Submission: 2026-05-29 07:09:20

Cracking passwords

Time of First Successful Submission: 2026-05-29 07:11:55

Using sudo

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

Changing File Ownership

Time of First Successful Submission: 2026-05-29 07:53:09

Groups and Files

Time of First Successful Submission: 2026-05-29 07:55:14

Fun With Groups Names

Time of First Successful Submission: 2026-05-29 08:01:29

Changing Permissions

Time of First Successful Submission: 2026-05-29 08:10:28

Executable Files

Time of First Successful Submission: 2026-05-29 08:15:51

Permission Tweaking Practice

Time of First Successful Submission: 2026-05-29 08:25:20

Permissions Setting Practice

Time of First Successful Submission: 2026-05-29 08:29:41

The SUID Bit

Time of First Successful Submission: 2026-05-29 08:40:12

Chaining with Semicolons

Time of First Successful Submission: 2026-05-29 08:44:37

Building on Success

Time of First Successful Submission: 2026-05-29 08:45:57

Handling Failure

Time of First Successful Submission: 2026-05-29 08:46:54

Your First Shell Script

Time of First Successful Submission: 2026-05-31 13:34:10

Redirecting Script Output

Time of First Successful Submission: 2026-05-31 14:28:42

Executable Shell Scripts

Time of First Successful Submission: 2026-05-31 14:37:07

Understanding Shebangs

Time of First Successful Submission: 2026-05-31 14:42:51

Scripting with Arguments

Time of First Successful Submission: 2026-05-31 14:45:29

Scripting with Conditionals

Time of First Successful Submission: 2026-05-31 14:48:11

Scripting with Default Cases

Time of First Successful Submission: 2026-05-31 14:51:19

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-05-31 14:55:30

Reading Shell Scripts

Time of First Successful Submission: 2026-05-31 14:58:17

Launching Screen

Time of First Successful Submission: 2026-05-31 14:59:37

Detaching and Attaching

Time of First Successful Submission: 2026-05-31 15:01:59

Finding Sessions

Time of First Successful Submission: 2026-05-31 15:05:33

Switching Windows

Time of First Successful Submission: 2026-05-31 15:08:46

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-05-31 15:12:11

Switching Windows (tmux)

Time of First Successful Submission: 2026-05-31 15:14:33

The PATH Variable

Time of First Successful Submission: 2026-05-31 15:17:13

Setting PATH

Time of First Successful Submission: 2026-05-31 15:20:07

Finding Commands

Time of First Successful Submission: 2026-05-31 15:23:30

Adding Commands

Time of First Successful Submission: 2026-05-31 15:43:47

Hijacking Commands

Time of First Successful Submission: 2026-05-31 15:50:10

Bashrc Backdoor

Time of First Successful Submission: 2026-05-31 15:55:16

Sniffing Input

Time of First Successful Submission: 2026-05-31 16:16:46

Overshared Directories

Time of First Successful Submission: 2026-05-31 16:34:35

Tricky Linking

Time of First Successful Submission: 2026-06-01 08:32:49

Sniffing Process Arguments

Time of First Successful Submission: 2026-06-01 08:39:46

Snooping on Configurations

Time of First Successful Submission: 2026-06-01 08:55:09

The Fork Bomb

Time of First Successful Submission: 2026-06-01 10:03:23

Disk-Space Doomsday

Time of First Successful Submission: 2026-06-01 10:06:20

rm -rf /

Time of First Successful Submission: 2026-06-01 10:10:42

Life after rm -rf /

Time of First Successful Submission: 2026-06-01 10:14:52

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-06-01 10:20:13


Computing 101

120 / 132 366 / 22786


Your First Register

Time of First Successful Submission: 2026-06-02 12:03:41

Your First Syscall

Time of First Successful Submission: 2026-06-02 12:04:42

Exit Codes

Time of First Successful Submission: 2026-06-02 12:06:00

Building Executables

Time of First Successful Submission: 2026-06-02 12:13:36

Moving Between Registers

Time of First Successful Submission: 2026-06-02 12:15:16

Loading From Memory

Time of First Successful Submission: 2026-06-02 12:30:47

More Loading Practice

Time of First Successful Submission: 2026-06-02 12:32:03

Dereferencing Pointers

Time of First Successful Submission: 2026-06-02 12:33:24

Dereferencing Yourself

Time of First Successful Submission: 2026-06-02 12:34:47

Dereferencing with Offsets

Time of First Successful Submission: 2026-06-02 12:35:51

Stored Addresses

Time of First Successful Submission: 2026-06-02 12:38:43

Double Dereference

Time of First Successful Submission: 2026-06-02 12:40:26

The Stack

Time of First Successful Submission: 2026-06-02 12:41:37

Stack Offsets

Time of First Successful Submission: 2026-06-02 12:42:37

Program Arguments on the Stack

Time of First Successful Submission: 2026-06-02 12:44:52

Popping From the Stack

Time of First Successful Submission: 2026-06-02 12:49:11

Negative Numbers

Time of First Successful Submission: 2026-07-13 03:47:34

Negative Numbers (16-bit)

Time of First Successful Submission: 2026-07-13 03:51:50

Negative Numbers (32-bit)

Time of First Successful Submission: 2026-07-13 03:54:24

Encoding Negatives

Time of First Successful Submission: 2026-07-13 03:58:04

Binary and Hex Encoding

Time of First Successful Submission: 2026-07-13 03:59:08

More Hex

Time of First Successful Submission: 2026-07-13 04:01:19

Decoding Hex

Time of First Successful Submission: 2026-07-13 04:02:42

Mixed Conversions

Time of First Successful Submission: 2026-07-13 08:15:03

Disassembling Programs

Time of First Successful Submission: 2026-06-02 12:56:16

Tracing Syscalls

Time of First Successful Submission: 2026-06-02 12:58:12

Starting GDB

Time of First Successful Submission: 2026-06-02 12:59:25

Quitting GDB

Time of First Successful Submission: 2026-06-02 12:59:57

Starting Programs in GDB

Time of First Successful Submission: 2026-06-02 13:01:20

Disassembling in GDB

Time of First Successful Submission: 2026-06-02 13:03:15

Stepping Through Instructions

Time of First Successful Submission: 2026-06-02 13:04:05

Reading Register Values

Time of First Successful Submission: 2026-06-02 13:04:54

Setting Register Values

Time of First Successful Submission: 2026-07-13 02:38:05

Popping Stack Values

Time of First Successful Submission: 2026-06-02 13:05:54

Examining Memory

Time of First Successful Submission: 2026-06-02 13:07:03

Examining Stack Pointers

Time of First Successful Submission: 2026-06-02 13:08:01

Cooperative Debugging

Time of First Successful Submission: 2026-06-02 13:12:12

Running with Arguments

Time of First Successful Submission: 2026-06-02 13:13:01

Redirecting Input in GDB

Time of First Successful Submission: 2026-07-13 02:41:44

Writing Output

Time of First Successful Submission: 2026-06-02 13:19:07

Chaining Syscalls

Time of First Successful Submission: 2026-06-02 13:20:43

Writing Strings

Time of First Successful Submission: 2026-06-02 13:21:45

Reading Data

Time of First Successful Submission: 2026-06-02 13:27:13

Reading Exactly

Time of First Successful Submission: 2026-06-16 06:12:18

Opening Files

Time of First Successful Submission: 2026-06-02 13:32:20

Hardcoding the Filename

Time of First Successful Submission: 2026-06-02 13:35:57

RIP-Relative Strings

Time of First Successful Submission: 2026-06-14 10:52:19

Comparing Values

Time of First Successful Submission: 2026-06-03 04:51:50

Comparing Characters

Time of First Successful Submission: 2026-06-03 04:57:38

Conditional Control Flow

Time of First Successful Submission: 2026-06-03 05:04:41

Comparing Strings

Time of First Successful Submission: 2026-06-03 05:07:14

Reverse the Password

Time of First Successful Submission: 2026-06-03 05:10:48

Conditionals Without Conditionals

Time of First Successful Submission: 2026-06-03 05:50:29

Recognizing Loops

Time of First Successful Submission: 2026-06-03 05:55:24

Writing Loops

Time of First Successful Submission: 2026-07-13 02:51:04

Writing From a Shared Library

Time of First Successful Submission: 2026-06-03 06:19:14

Returning a Value

Time of First Successful Submission: 2026-06-03 06:25:18

Calling Through a Pointer

Time of First Successful Submission: 2026-06-03 06:26:28

Calling Through a Pointer with an Argument

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

Saving Caller-Saved Registers

Time of First Successful Submission: 2026-06-14 11:14:38

Saving Callee-Saved Registers

Time of First Successful Submission: 2026-06-14 11:29:23

Sign Extension

Time of First Successful Submission: 2026-06-14 13:34:26

Little-Endian Bytes

Time of First Successful Submission: 2026-06-14 13:53:38

Qword by Qword

Time of First Successful Submission: 2026-06-14 14:05:37

Dword by Dword

Time of First Successful Submission: 2026-06-14 14:07:52

Word by Word

Time of First Successful Submission: 2026-06-14 14:09:18

Byte by Byte

Time of First Successful Submission: 2026-06-14 14:11:34

Cracking a Struct

Time of First Successful Submission: 2026-06-14 14:12:55

Scrambled Struct

Time of First Successful Submission: 2026-06-14 14:15:24

Reverse the Calculation

Time of First Successful Submission: 2026-06-03 06:35:38

Reverse the Reverse

Time of First Successful Submission: 2026-06-03 06:36:34

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-06-03 06:37:54

Even or Odd

Time of First Successful Submission: 2026-06-14 12:56:46

Masking Bits

Time of First Successful Submission: 2026-06-14 13:04:04

Lowercase a String

Time of First Successful Submission: 2026-06-14 13:07:43

Uppercase a String

Time of First Successful Submission: 2026-06-14 13:16:46

Swap Case

Time of First Successful Submission: 2026-06-14 13:23:36

Shifting Left

Time of First Successful Submission: 2026-06-14 13:27:02

Shifting Right

Time of First Successful Submission: 2026-06-14 13:30:25

Loops on Data

Time of First Successful Submission: 2026-06-03 06:39:23

Reaching Into the Caller's Frame

Time of First Successful Submission: 2026-06-03 06:55:00

Loading Stale Stack Data

Time of First Successful Submission: 2026-07-13 03:12:03

Stealing Stale Stack Data

Time of First Successful Submission: 2026-07-13 03:22:53

Reserving Your Own Frame

Time of First Successful Submission: 2026-07-13 03:42:33

Using Your Own Frame

Time of First Successful Submission: 2026-06-14 12:51:38

Environment Variables on the Stack

Time of First Successful Submission: 2026-06-03 06:59:46

Aligning the Stack Through the Environment

Time of First Successful Submission: 2026-06-03 07:26:52

Aligning the Stack Through GDB

Time of First Successful Submission: 2026-06-03 07:48:05

Aligning the Stack Through GDB, Generalized

Time of First Successful Submission: 2026-06-03 07:53:57

A Single Digit

Time of First Successful Submission: 2026-07-13 09:41:02

Two Digits

Time of First Successful Submission: 2026-07-13 09:47:38

String to Integer

Time of First Successful Submission: 2026-07-13 11:13:37

Negative Numbers

Time of First Successful Submission: 2026-07-13 11:24:35

Where the Number Ends

Time of First Successful Submission: 2026-07-13 11:28:59

A Whole Program

Time of First Successful Submission: 2026-07-14 03:05:41

A Single Digit, Back to Text

Time of First Successful Submission: 2026-07-14 03:15:15

Divide and Remainder

Time of First Successful Submission: 2026-07-14 05:30:39

Drop the Leading Zero

Time of First Successful Submission: 2026-07-14 05:34:42

Integer to String

Time of First Successful Submission: 2026-07-14 06:00:51

Negative Numbers, Back to Text

Time of First Successful Submission: 2026-07-14 06:13:21

Sum Them All

Time of First Successful Submission: 2026-07-14 06:46:30

Debugging Programs

Time of First Successful Submission: 2026-06-05 09:58:16

Inspecting Registers

Time of First Successful Submission: 2026-06-05 10:02:24

Examining Memory

Time of First Successful Submission: 2026-06-05 10:37:32

Setting Breakpoints

Time of First Successful Submission: 2026-06-05 11:13:42

GDB Scripting

Time of First Successful Submission: 2026-06-05 11:40:12

Modifying Data

Time of First Successful Submission: 2026-06-05 12:23:43

Modifying Execution

Time of First Successful Submission: 2026-06-05 14:15:10

Broken Functions

Time of First Successful Submission: 2026-06-05 15:30:48

Exit

Time of First Successful Submission: 2026-06-05 05:36:52

Socket

Time of First Successful Submission: 2026-06-05 05:39:46

Bind

Time of First Successful Submission: 2026-06-05 05:55:38

Listen

Time of First Successful Submission: 2026-06-05 07:01:37

Accept

Time of First Successful Submission: 2026-06-05 07:09:20

Static Response

Time of First Successful Submission: 2026-06-05 07:42:39

Dynamic Response

Time of First Successful Submission: 2026-06-05 08:22:23

Iterative GET Server

Time of First Successful Submission: 2026-06-05 08:25:46

Concurrent GET Server

Time of First Successful Submission: 2026-06-05 08:41:36

Concurrent POST Server

Time of First Successful Submission: 2026-06-05 09:36:46

Web Server

Time of First Successful Submission: 2026-06-05 09:48:08


Playing With Programs

116 / 116 1104 / 25945


What's the password?

Time of First Successful Submission: 2026-07-14 06:54:48

... and again!

Time of First Successful Submission: 2026-07-14 06:55:48

Newline Troubles

Time of First Successful Submission: 2026-07-14 06:58:33

Reasoning about files

Time of First Successful Submission: 2026-07-14 07:00:40

Specifying Filenames

Time of First Successful Submission: 2026-07-14 07:04:28

Binary and Hex Encoding

Time of First Successful Submission: 2026-07-14 07:09:19

More Hex

Time of First Successful Submission: 2026-07-14 07:10:19

Decoding Hex

Time of First Successful Submission: 2026-07-14 07:19:07

Decoding Practice

Time of First Successful Submission: 2026-07-14 07:27:52

Encoding Practice

Time of First Successful Submission: 2026-07-14 07:32:21

Hex-encoding ASCII

Time of First Successful Submission: 2026-07-14 07:40:13

Nested Encoding

Time of First Successful Submission: 2026-07-14 07:43:27

Hex-encoding UTF-8

Time of First Successful Submission: 2026-07-14 08:00:10

UTF Mixups

Time of First Successful Submission: 2026-07-14 08:06:19

Modifying Encoded Data

Time of First Successful Submission: 2026-07-14 08:18:44

Decoding Base64

Time of First Successful Submission: 2026-07-14 08:25:16

Encoding Base64

Time of First Successful Submission: 2026-07-14 08:31:57

Dealing with Obfuscation

Time of First Successful Submission: 2026-07-14 08:34:32

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-07-14 08:40:00

Your First HTTP Request

Time of First Successful Submission: 2026-07-26 12:26:53

Reading Flask

Time of First Successful Submission: 2026-07-26 12:32:03

Commented Data

Time of First Successful Submission: 2026-07-26 12:36:02

HTTP Metadata

Time of First Successful Submission: 2026-07-26 12:47:19

HTTP (netcat)

Time of First Successful Submission: 2026-07-26 12:56:06

HTTP Paths (netcat)

Time of First Successful Submission: 2026-07-26 12:59:47

HTTP (curl)

Time of First Successful Submission: 2026-07-26 13:01:52

HTTP (python)

Time of First Successful Submission: 2026-07-27 02:02:32

HTTP Host Header (python)

Time of First Successful Submission: 2026-07-27 02:12:33

HTTP Host Header (curl)

Time of First Successful Submission: 2026-07-27 02:16:29

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-07-27 02:19:19

URL Encoding (netcat)

Time of First Successful Submission: 2026-07-27 02:23:33

HTTP GET Parameters

Time of First Successful Submission: 2026-07-27 02:31:00

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-07-27 02:33:29

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-07-27 02:36:03

HTTP Forms

Time of First Successful Submission: 2026-07-27 03:01:26

HTTP Forms (curl)

Time of First Successful Submission: 2026-07-27 03:08:38

HTTP Forms (netcat)

Time of First Successful Submission: 2026-07-27 03:17:47

HTTP Forms (python)

Time of First Successful Submission: 2026-07-27 03:22:39

HTTP Forms Without Forms

Time of First Successful Submission: 2026-07-27 03:27:37

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-07-27 03:46:20

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-07-28 05:11:51

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-07-28 05:37:17

HTTP Redirects (curl)

Time of First Successful Submission: 2026-07-28 05:39:38

HTTP Redirects (python)

Time of First Successful Submission: 2026-07-28 05:43:40

HTTP Cookies (curl)

Time of First Successful Submission: 2026-07-28 05:50:14

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-07-28 05:57:12

HTTP Cookies (python)

Time of First Successful Submission: 2026-07-29 11:29:13

Server State (python)

Time of First Successful Submission: 2026-07-29 11:43:10

Listening Web

Time of First Successful Submission: 2026-07-29 11:57:44

Speaking Redirects

Time of First Successful Submission: 2026-07-29 13:43:22

JavaScript Redirects

Time of First Successful Submission: 2026-07-29 14:20:18

Including JavaScript

Time of First Successful Submission: 2026-07-29 17:15:16

HTTP (javascript)

Time of First Successful Submission: 2026-07-29 17:36:42

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-07-29 17:52:12

HTTP Forms (javascript)

Time of First Successful Submission: 2026-07-29 18:12:25

cat

Time of First Successful Submission: 2026-07-29 18:18:53

more

Time of First Successful Submission: 2026-07-29 18:24:50

less

Time of First Successful Submission: 2026-07-29 18:25:20

tail

Time of First Successful Submission: 2026-07-29 18:26:34

head

Time of First Successful Submission: 2026-07-29 18:27:48

sort

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

vim

Time of First Successful Submission: 2026-07-29 18:30:15

emacs

Time of First Successful Submission: 2026-07-29 18:31:37

nano

Time of First Successful Submission: 2026-07-29 18:32:52

rev

Time of First Successful Submission: 2026-07-29 18:34:11

od

Time of First Successful Submission: 2026-07-29 18:41:36

hd

Time of First Successful Submission: 2026-07-29 18:43:53

xxd

Time of First Successful Submission: 2026-07-29 18:45:32

base32

Time of First Successful Submission: 2026-07-29 18:48:22

base64

Time of First Successful Submission: 2026-07-29 18:50:07

split

Time of First Successful Submission: 2026-07-29 18:52:27

gzip

Time of First Successful Submission: 2026-07-29 18:56:37

bzip2

Time of First Successful Submission: 2026-07-29 19:09:41

zip

Time of First Successful Submission: 2026-07-29 19:12:14

tar

Time of First Successful Submission: 2026-07-29 19:16:40

ar

Time of First Successful Submission: 2026-07-29 19:19:50

cpio

Time of First Successful Submission: 2026-07-30 14:45:50

genisoimage

Time of First Successful Submission: 2026-07-30 15:10:52

env

Time of First Successful Submission: 2026-07-31 14:05:13

find

Time of First Successful Submission: 2026-07-31 14:13:02

make

Time of First Successful Submission: 2026-07-31 14:27:57

nice

Time of First Successful Submission: 2026-07-31 14:31:45

timeout

Time of First Successful Submission: 2026-07-31 14:33:43

stdbuf

Time of First Successful Submission: 2026-07-31 14:35:38

setarch

Time of First Successful Submission: 2026-07-31 14:39:28

watch

Time of First Successful Submission: 2026-07-31 14:41:39

socat

Time of First Successful Submission: 2026-07-31 14:46:04

whiptail

Time of First Successful Submission: 2026-07-31 14:49:58

awk

Time of First Successful Submission: 2026-07-31 17:39:23

sed

Time of First Successful Submission: 2026-07-31 17:43:12

ed

Time of First Successful Submission: 2026-07-31 17:51:07

chown

Time of First Successful Submission: 2026-07-31 17:53:01

chmod

Time of First Successful Submission: 2026-07-31 17:54:08

cp

Time of First Successful Submission: 2026-07-31 17:56:55

mv

Time of First Successful Submission: 2026-07-31 18:37:52

perl

Time of First Successful Submission: 2026-07-31 18:46:06

python

Time of First Successful Submission: 2026-07-31 18:52:36

ruby

Time of First Successful Submission: 2026-07-31 18:55:04

bash

Time of First Successful Submission: 2026-07-31 18:58:15

date

Time of First Successful Submission: 2026-07-31 19:03:10

dmesg

Time of First Successful Submission: 2026-07-31 19:06:38

wc

Time of First Successful Submission: 2026-07-31 19:11:44

gcc

Time of First Successful Submission: 2026-07-31 19:17:43

as

Time of First Successful Submission: 2026-07-31 19:19:06

wget

Time of First Successful Submission: 2026-07-31 20:03:47

ssh-keygen

Time of First Successful Submission: 2026-07-31 20:10:10

SQL Queries

Time of First Successful Submission: 2026-08-01 07:10:03

Filtering SQL

Time of First Successful Submission: 2026-08-01 07:39:15

Choosing Columns

Time of First Successful Submission: 2026-08-01 09:40:28

Exclusionary Filtering

Time of First Successful Submission: 2026-08-01 09:42:47

Filtering Strings

Time of First Successful Submission: 2026-08-01 09:45:10

Filtering on Expressions

Time of First Successful Submission: 2026-08-01 10:00:59

SELECTing Expressions

Time of First Successful Submission: 2026-08-01 10:09:32

Composite Conditions

Time of First Successful Submission: 2026-08-02 09:59:52

Reaching Your LIMITs

Time of First Successful Submission: 2026-08-02 10:07:54

Querying Metadata

Time of First Successful Submission: 2026-08-02 10:12:24


DSU Cyber Camps

12 / 104 2879 / 61117


Using the Terminal

Time of First Successful Submission: 2026-05-13 08:28:40

Using the VSCode Workspace

Time of First Successful Submission: 2026-05-13 08:33:31

Using the GUI Desktop

Time of First Successful Submission: 2026-05-13 08:38:36

Pasting into the Desktop

Time of First Successful Submission: 2026-05-13 08:40:45

Connecting over SSH

Time of First Successful Submission: 2026-05-13 08:42:48

Restarting Challenges

Time of First Successful Submission: 2026-05-13 08:45:50

Getting Help

Time of First Successful Submission: 2026-05-13 08:47:59

Challenge Programs

Time of First Successful Submission: 2026-05-13 08:49:19

The Flag File

Time of First Successful Submission: 2026-05-13 08:50:55

Using Privileged Mode

Time of First Successful Submission: 2026-05-13 08:55:00

Persistent Home Directories - One

Time of First Successful Submission: 2026-05-13 09:05:28

Persistent Home Directories - Two

Time of First Successful Submission: 2026-05-13 09:06:34


GCA CTF

12 / 104 2879 / 61117


Using the Terminal

Time of First Successful Submission: 2026-05-13 08:28:40

Using the VSCode Workspace

Time of First Successful Submission: 2026-05-13 08:33:31

Using the GUI Desktop

Time of First Successful Submission: 2026-05-13 08:38:36

Pasting into the Desktop

Time of First Successful Submission: 2026-05-13 08:40:45

Connecting over SSH

Time of First Successful Submission: 2026-05-13 08:42:48

Restarting Challenges

Time of First Successful Submission: 2026-05-13 08:45:50

Getting Help

Time of First Successful Submission: 2026-05-13 08:47:59

Challenge Programs

Time of First Successful Submission: 2026-05-13 08:49:19

The Flag File

Time of First Successful Submission: 2026-05-13 08:50:55

Using Privileged Mode

Time of First Successful Submission: 2026-05-13 08:55:00

Persistent Home Directories - One

Time of First Successful Submission: 2026-05-13 09:05:28

Persistent Home Directories - Two

Time of First Successful Submission: 2026-05-13 09:06:34