yuniux

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United States

ARM Architecture

16 / 28 197 / 682


Level1

Time of First Successful Submission: 2026-03-11 22:41:45

Level2

Time of First Successful Submission: 2026-03-11 22:54:57

Level3

Time of First Successful Submission: 2026-03-11 23:02:10

Level4

Time of First Successful Submission: 2026-03-11 23:02:42

Level5

Time of First Successful Submission: 2026-03-11 23:16:27

Level6

Time of First Successful Submission: 2026-03-11 23:30:07

Level7

Time of First Successful Submission: 2026-03-11 23:48:41

Level8

Time of First Successful Submission: 2026-03-11 23:53:34

Level9

Time of First Successful Submission: 2026-03-12 00:04:58

Level10

Time of First Successful Submission: 2026-03-12 00:12:16

Level11

Time of First Successful Submission: 2026-03-12 00:31:57

Level12

Time of First Successful Submission: 2026-03-12 00:34:11

Level13

Time of First Successful Submission: 2026-03-12 00:48:48

Level14

Time of First Successful Submission: 2026-03-12 01:23:17

Level15

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

level-1-0

Time of First Successful Submission: 2026-03-12 16:42:45


Intro to Programming Languages

26 / 234 703 / 31077


P1.0 Level 1 Open /flag in VSCode

Time of First Successful Submission: 2026-03-02 19:51:20

Commands

Time of First Successful Submission: 2026-02-22 00:39:44

Command Arguments

Time of First Successful Submission: 2026-02-22 00:40:15

Command History

Time of First Successful Submission: 2026-02-22 00:40:52

The Root Path

Time of First Successful Submission: 2026-02-22 00:41:48

Absolute Paths

Time of First Successful Submission: 2026-02-22 00:43:00

Changing position

Time of First Successful Submission: 2026-02-22 00:43:40

Changing to an Absolute Path

Time of First Successful Submission: 2026-02-22 00:44:33

Relative Paths

Time of First Successful Submission: 2026-02-22 00:45:20

P1.0 Level 5 read

Time of First Successful Submission: 2026-03-02 19:50:36

Cat

Time of First Successful Submission: 2026-02-22 00:49:02

Ls

Time of First Successful Submission: 2026-02-22 00:53:11

Ls All

Time of First Successful Submission: 2026-02-22 00:55:24

P1.0 Level 2 list dir

Time of First Successful Submission: 2026-03-02 19:54:48

Find

Time of First Successful Submission: 2026-02-22 01:00:29

Piping Echo

Time of First Successful Submission: 2026-02-22 01:34:08

Piping Stdout

Time of First Successful Submission: 2026-02-22 01:35:09

Piping Stdin

Time of First Successful Submission: 2026-02-22 01:42:10

P2.1 Level 01 C Force

Time of First Successful Submission: 2026-03-16 23:48:06

P2.1 Level 02 C Args

Time of First Successful Submission: 2026-03-17 00:41:31

P2.1 Level 03 scanf

Time of First Successful Submission: 2026-03-17 01:20:38

P2.1 Level 04 getchar

Time of First Successful Submission: 2026-03-17 01:55:19

P2.1 Level 05 add-n-sub

Time of First Successful Submission: 2026-03-17 02:31:11

P2.1 Level 06 debug me

Time of First Successful Submission: 2026-03-17 02:34:58

P2.2 Level 01 length

Time of First Successful Submission: 2026-03-17 02:48:05

P2.2 Level 02 c-cat

Time of First Successful Submission: 2026-03-17 03:08:44


XNU Dojo

16 / 61 212 / 700


Level1

Time of First Successful Submission: 2026-03-11 22:41:45

Level2

Time of First Successful Submission: 2026-03-11 22:54:57

Level3

Time of First Successful Submission: 2026-03-11 23:02:10

Level4

Time of First Successful Submission: 2026-03-11 23:02:42

Level5

Time of First Successful Submission: 2026-03-11 23:16:27

Level6

Time of First Successful Submission: 2026-03-11 23:30:07

Level7

Time of First Successful Submission: 2026-03-11 23:48:41

Level8

Time of First Successful Submission: 2026-03-11 23:53:34

Level9

Time of First Successful Submission: 2026-03-12 00:04:58

Level10

Time of First Successful Submission: 2026-03-12 00:12:16

Level11

Time of First Successful Submission: 2026-03-12 00:31:57

Level12

Time of First Successful Submission: 2026-03-12 00:34:11

Level13

Time of First Successful Submission: 2026-03-12 00:48:48

Level14

Time of First Successful Submission: 2026-03-12 01:23:17

Level15

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

level-1-0

Time of First Successful Submission: 2026-03-12 16:42:45


Intro to Cybersecurity

166 / 183 355 / 19656


Path Traversal 1

Time of First Successful Submission: 2026-02-25 17:21:05

Path Traversal 2

Time of First Successful Submission: 2026-02-25 17:29:28

CMDi 1

Time of First Successful Submission: 2026-02-25 17:37:19

CMDi 2

Time of First Successful Submission: 2026-02-25 17:39:01

CMDi 3

Time of First Successful Submission: 2026-02-25 17:40:15

CMDi 4

Time of First Successful Submission: 2026-02-25 17:41:19

CMDi 5

Time of First Successful Submission: 2026-02-25 17:42:54

CMDi 6

Time of First Successful Submission: 2026-02-25 17:52:41

Authentication Bypass 1

Time of First Successful Submission: 2026-02-25 17:58:07

Authentication Bypass 2

Time of First Successful Submission: 2026-02-25 17:59:47

SQLi 1

Time of First Successful Submission: 2026-02-25 18:08:40

SQLi 2

Time of First Successful Submission: 2026-02-25 18:11:22

SQLi 3

Time of First Successful Submission: 2026-02-25 18:20:08

SQLi 4

Time of First Successful Submission: 2026-02-25 18:25:04

SQLi 5

Time of First Successful Submission: 2026-02-25 18:49:19

XSS 1

Time of First Successful Submission: 2026-02-25 19:09:03

XSS 2

Time of First Successful Submission: 2026-02-25 19:10:15

XSS 3

Time of First Successful Submission: 2026-02-25 19:14:55

XSS 4

Time of First Successful Submission: 2026-02-25 19:17:00

XSS 5

Time of First Successful Submission: 2026-02-25 19:42:14

XSS 6

Time of First Successful Submission: 2026-02-25 19:44:11

XSS 7

Time of First Successful Submission: 2026-02-25 20:10:17

CSRF 1

Time of First Successful Submission: 2026-02-25 21:42:55

CSRF 2

Time of First Successful Submission: 2026-02-25 21:48:52

CSRF 3

Time of First Successful Submission: 2026-02-25 22:06:21

CSRF 4

Time of First Successful Submission: 2026-02-25 22:20:52

CSRF 5

Time of First Successful Submission: 2026-02-25 22:28:20

Connect

Time of First Successful Submission: 2026-02-25 22:45:26

Send

Time of First Successful Submission: 2026-02-25 22:46:00

Shutdown

Time of First Successful Submission: 2026-02-25 22:47:58

Listen

Time of First Successful Submission: 2026-02-25 22:48:30

Scan 1

Time of First Successful Submission: 2026-02-25 23:02:54

Scan 2

Time of First Successful Submission: 2026-02-25 23:57:19

Monitor 1

Time of First Successful Submission: 2026-02-26 00:01:32

Monitor 2

Time of First Successful Submission: 2026-02-26 00:13:54

Sniffing Cookies

Time of First Successful Submission: 2026-02-26 00:22:33

Network Configuration

Time of First Successful Submission: 2026-02-26 00:43:58

Firewall 1

Time of First Successful Submission: 2026-02-26 00:51:01

Firewall 2

Time of First Successful Submission: 2026-02-26 00:53:15

Firewall 3

Time of First Successful Submission: 2026-02-26 00:54:27

Denial of Service 1

Time of First Successful Submission: 2026-02-26 00:59:54

Denial of Service 2

Time of First Successful Submission: 2026-02-26 01:05:31

Denial of Service 3

Time of First Successful Submission: 2026-03-14 21:33:03

Ethernet

Time of First Successful Submission: 2026-02-26 18:25:46

IP

Time of First Successful Submission: 2026-02-26 18:30:55

TCP

Time of First Successful Submission: 2026-02-26 18:34:15

TCP Handshake

Time of First Successful Submission: 2026-02-26 19:13:39

UDP

Time of First Successful Submission: 2026-02-26 19:17:27

UDP 2

Time of First Successful Submission: 2026-02-26 19:19:14

UDP Spoofing 1

Time of First Successful Submission: 2026-02-26 19:25:35

UDP Spoofing 2

Time of First Successful Submission: 2026-02-26 19:31:46

UDP Spoofing 3

Time of First Successful Submission: 2026-02-26 20:06:26

UDP Spoofing 4

Time of First Successful Submission: 2026-02-26 20:13:42

ARP

Time of First Successful Submission: 2026-02-26 21:00:44

Intercept

Time of First Successful Submission: 2026-02-26 21:06:15

Man-in-the-Middle

Time of First Successful Submission: 2026-03-14 20:36:02

XOR

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

XORing Hex

Time of First Successful Submission: 2026-02-26 02:28:54

XORing ASCII

Time of First Successful Submission: 2026-02-26 02:30:17

XORing ASCII Strings

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

One-time Pad

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

One-time Pad Tampering

Time of First Successful Submission: 2026-02-26 02:38:09

Many-time Pad

Time of First Successful Submission: 2026-02-26 02:42:41

AES

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

AES-ECB-CPA

Time of First Successful Submission: 2026-02-26 16:08:51

AES-ECB-CPA-HTTP

Time of First Successful Submission: 2026-02-26 15:50:14

AES-ECB-CPA-HTTP (base64)

Time of First Successful Submission: 2026-02-26 15:58:37

AES-ECB-CPA-Suffix

Time of First Successful Submission: 2026-02-26 16:19:38

AES-ECB-CPA-Prefix

Time of First Successful Submission: 2026-02-26 16:41:24

AES-ECB-CPA-Prefix-2

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

AES-ECB-CPA-Prefix-Miniboss

Time of First Successful Submission: 2026-03-01 18:37:44

AES-ECB-CPA-Prefix-Boss

Time of First Successful Submission: 2026-03-01 19:02:21

AES-CBC

Time of First Successful Submission: 2026-02-28 22:38:40

AES-CBC Tampering

Time of First Successful Submission: 2026-02-28 23:12:02

AES-CBC Resizing

Time of First Successful Submission: 2026-02-28 23:21:26

AES-CBC-POA-Partial-Block

Time of First Successful Submission: 2026-03-01 21:32:59

AES-CBC-POA-Full-Block

Time of First Successful Submission: 2026-03-01 21:37:37

AES-CBC-POA-Multi-Block

Time of First Successful Submission: 2026-03-01 22:03:49

AES-CBC-POA-Encrypt

Time of First Successful Submission: 2026-03-01 23:52:20

AES-CBC-POA-Encrypt-2

Time of First Successful Submission: 2026-03-02 00:06:52

DHKE

Time of First Successful Submission: 2026-02-26 22:08:46

DHKE-to-AES

Time of First Successful Submission: 2026-02-26 22:24:54

RSA 1

Time of First Successful Submission: 2026-02-26 23:08:42

RSA 2

Time of First Successful Submission: 2026-02-26 23:17:11

RSA 3

Time of First Successful Submission: 2026-02-26 23:19:15

RSA 4

Time of First Successful Submission: 2026-02-26 23:49:47

RSA Signatures

Time of First Successful Submission: 2026-02-27 01:07:34

SHA 1

Time of First Successful Submission: 2026-02-27 17:12:17

SHA 2

Time of First Successful Submission: 2026-02-27 17:19:37

TLS 1

Time of First Successful Submission: 2026-03-01 16:20:50

TLS 2

Time of First Successful Submission: 2026-03-01 18:03:28

level1

Time of First Successful Submission: 2026-02-27 17:59:07

level2

Time of First Successful Submission: 2026-02-27 18:03:27

level3

Time of First Successful Submission: 2026-02-27 18:04:07

level4

Time of First Successful Submission: 2026-02-27 18:04:29

level5

Time of First Successful Submission: 2026-02-27 18:05:50

level6

Time of First Successful Submission: 2026-02-27 18:09:17

level7

Time of First Successful Submission: 2026-02-27 18:10:00

level8

Time of First Successful Submission: 2026-02-27 18:10:40

level9

Time of First Successful Submission: 2026-02-27 18:11:27

level10

Time of First Successful Submission: 2026-02-27 18:13:45

level11

Time of First Successful Submission: 2026-02-27 18:15:26

level12

Time of First Successful Submission: 2026-02-27 18:16:40

level13

Time of First Successful Submission: 2026-02-27 18:27:35

level14

Time of First Successful Submission: 2026-02-27 18:28:11

level15

Time of First Successful Submission: 2026-02-27 18:33:07

level16

Time of First Successful Submission: 2026-02-27 18:34:14

level17

Time of First Successful Submission: 2026-02-27 19:05:02

level18

Time of First Successful Submission: 2026-02-27 19:09:20

level19

Time of First Successful Submission: 2026-02-27 19:44:32

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2026-02-27 19:54:32

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2026-02-27 19:55:46

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2026-02-27 19:58:49

Reading Endianness (Python)

Time of First Successful Submission: 2026-02-27 20:00:29

Reading Endianness (C)

Time of First Successful Submission: 2026-02-27 20:02:13

Reading Endianness (x86)

Time of First Successful Submission: 2026-02-27 20:05:46

Version Information (Python)

Time of First Successful Submission: 2026-02-27 20:07:06

Version Information (C)

Time of First Successful Submission: 2026-02-27 20:12:31

Version Information (x86)

Time of First Successful Submission: 2026-02-27 20:14:19

Metadata and Data (Python)

Time of First Successful Submission: 2026-02-27 20:22:41

Metadata and Data (C)

Time of First Successful Submission: 2026-02-27 20:27:07

Metadata and Data (x86)

Time of First Successful Submission: 2026-02-27 20:29:36

Input Restrictions (Python)

Time of First Successful Submission: 2026-02-27 20:33:03

Input Restrictions (C)

Time of First Successful Submission: 2026-02-27 20:35:29

Input Restrictions (x86)

Time of First Successful Submission: 2026-02-27 20:37:50

Behold the cIMG! (Python)

Time of First Successful Submission: 2026-02-27 20:43:42

Behold the cIMG! (C)

Time of First Successful Submission: 2026-02-27 20:45:00

Behold the cIMG! (x86)

Time of First Successful Submission: 2026-02-27 20:49:36

A Basic cIMG (Python)

Time of First Successful Submission: 2026-02-27 20:53:59

A Basic cIMG (C)

Time of First Successful Submission: 2026-02-27 20:55:43

A Basic cIMG (x86)

Time of First Successful Submission: 2026-02-27 20:57:05

Internal State Mini (C)

Time of First Successful Submission: 2026-02-27 21:07:38

Internal State Mini (x86)

Time of First Successful Submission: 2026-02-27 21:14:27

Internal State (C)

Time of First Successful Submission: 2026-02-27 21:45:32

Internal State (x86)

Time of First Successful Submission: 2026-02-27 22:08:13

File Formats: Directives (C)

Time of First Successful Submission: 2026-02-27 22:21:28

File Formats: Directives (x86)

Time of First Successful Submission: 2026-02-27 22:31:04

The Patch Directive

Time of First Successful Submission: 2026-03-16 19:01:56

Optimizing for Space

Time of First Successful Submission: 2026-03-16 22:05:58

Your First Overflow (easy)

Time of First Successful Submission: 2026-02-27 22:48:05

Your First Overflow (hard)

Time of First Successful Submission: 2026-02-27 22:48:38

Precision (easy)

Time of First Successful Submission: 2026-02-27 22:52:48

Precision (hard)

Time of First Successful Submission: 2026-02-27 23:08:39

Variable Control (easy)

Time of First Successful Submission: 2026-02-28 01:11:07

Variable Control (hard)

Time of First Successful Submission: 2026-02-28 01:37:55

Control Hijack (easy)

Time of First Successful Submission: 2026-02-28 01:45:46

Control Hijack (hard)

Time of First Successful Submission: 2026-02-28 01:49:47

Tricky Control Hijack (easy)

Time of First Successful Submission: 2026-02-28 01:59:03

Tricky Control Hijack (hard)

Time of First Successful Submission: 2026-02-28 02:01:45

PIEs (easy)

Time of First Successful Submission: 2026-02-28 17:12:35

PIEs (hard)

Time of First Successful Submission: 2026-02-28 17:16:55

String Lengths (easy)

Time of First Successful Submission: 2026-02-28 17:40:48

String Lengths (hard)

Time of First Successful Submission: 2026-02-28 17:44:47

Basic Shellcode

Time of First Successful Submission: 2026-02-28 17:53:53

NOP Sleds

Time of First Successful Submission: 2026-02-28 18:01:16

NULL-Free Shellcode

Time of First Successful Submission: 2026-02-28 18:02:10

Hijack to (Mapped) Shellcode (easy)

Time of First Successful Submission: 2026-02-28 18:21:19

Hijack to (Mapped) Shellcode (hard)

Time of First Successful Submission: 2026-02-28 18:27:14

Hijack to Shellcode (easy)

Time of First Successful Submission: 2026-02-28 18:44:10

Hijack to Shellcode (hard)

Time of First Successful Submission: 2026-03-14 23:09:36

ECB-to-Win (easy)

Time of First Successful Submission: 2026-03-15 00:58:30

ECB-to-Win (hard)

Time of First Successful Submission: 2026-03-15 01:30:52

ECB-to-Shellcode (easy)

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

ECB-to-Shellcode (hard)

Time of First Successful Submission: 2026-03-15 02:58:21

Wily Webserver

Time of First Successful Submission: 2026-03-15 18:52:50

The Watering Hole

Time of First Successful Submission: 2026-03-15 22:09:40


Program Security

76 / 162 956 / 9407


ello ackers!

Time of First Successful Submission: 2026-03-04 21:06:38

Syscall Smuggler

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

Syscall Shenanigans

Time of First Successful Submission: 2026-03-03 16:17:21

Byte Budget

Time of First Successful Submission: 2026-03-05 19:03:22

ClobberCode

Time of First Successful Submission: 2026-03-04 22:39:22

Diverse Delivery

Time of First Successful Submission: 2026-03-05 19:34:03

Pocket Payload

Time of First Successful Submission: 2026-03-15 16:57:30

Login Leakage (Easy)

Time of First Successful Submission: 2026-03-09 14:21:32

Login Leakage (Hard)

Time of First Successful Submission: 2026-03-09 14:27:01

Bounds Breaker (Easy)

Time of First Successful Submission: 2026-03-09 14:54:56

Bounds Breaker (Hard)

Time of First Successful Submission: 2026-03-09 15:00:10

Casting Catastrophe (Easy)

Time of First Successful Submission: 2026-03-09 15:47:18

Casting Catastrophe (Hard)

Time of First Successful Submission: 2026-03-09 15:55:31

Pointer Problems (Easy)

Time of First Successful Submission: 2026-03-09 16:04:07

Pointer Problems (Hard)

Time of First Successful Submission: 2026-03-09 16:12:30

Anomalous Array (Easy)

Time of First Successful Submission: 2026-03-09 16:21:24

Anomalous Array (Hard)

Time of First Successful Submission: 2026-03-09 16:23:17

Now you got it (Easy)

Time of First Successful Submission: 2026-03-09 23:07:29

Now you got it (Hard)

Time of First Successful Submission: 2026-03-09 23:35:35

Loop Lunacy (Easy)

Time of First Successful Submission: 2026-03-09 17:30:30

Loop Lunacy (Hard)

Time of First Successful Submission: 2026-03-09 17:42:26

Nosy Neighbor (Easy)

Time of First Successful Submission: 2026-03-09 18:11:17

Nosy Neighbor (Hard)

Time of First Successful Submission: 2026-03-09 18:13:15

Recursive Ruin (Easy)

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

Recursive Ruin (Hard)

Time of First Successful Submission: 2026-03-09 21:06:50

Lingering Leftover (Easy)

Time of First Successful Submission: 2026-03-09 19:37:22

Lingering Leftover (Hard)

Time of First Successful Submission: 2026-03-09 19:43:49

Latent Leak (Easy)

Time of First Successful Submission: 2026-03-09 20:46:24

Latent Leak (Hard)

Time of First Successful Submission: 2026-03-09 20:56:45

Fork Foolery (Easy)

Time of First Successful Submission: 2026-03-09 21:50:57

Fork Foolery (Hard)

Time of First Successful Submission: 2026-03-09 21:54:22

Canary Conundrum (Easy)

Time of First Successful Submission: 2026-03-10 19:40:24

Canary Conundrum (Hard)

Time of First Successful Submission: 2026-03-10 20:26:38

A Crafty Clobber (Easy)

Time of First Successful Submission: 2026-03-10 21:30:27

A Crafty Clobber (Hard)

Time of First Successful Submission: 2026-03-10 22:07:38

Terrible Token (Easy)

Time of First Successful Submission: 2026-03-03 20:35:49

Terrible Token (Hard)

Time of First Successful Submission: 2026-03-03 20:36:19

Tangled Ticket (Easy)

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

Tangled Ticket (Hard)

Time of First Successful Submission: 2026-03-03 20:50:11

Substitution Sorcery

Time of First Successful Submission: 2026-03-08 16:17:41

Meager Mangler (Easy)

Time of First Successful Submission: 2026-03-04 15:37:34

Meager Mangler (Hard)

Time of First Successful Submission: 2026-03-07 20:15:46

Monstrous Mangler (Easy)

Time of First Successful Submission: 2026-03-08 14:41:13

Monstrous Mangler (Hard)

Time of First Successful Submission: 2026-03-08 15:39:28

Patched Up (Easy)

Time of First Successful Submission: 2026-03-08 16:45:44

Patched Up (Hard)

Time of First Successful Submission: 2026-03-08 16:48:51

Puzzle Patch (Easy)

Time of First Successful Submission: 2026-03-08 17:18:47

Puzzle Patch (Hard)

Time of First Successful Submission: 2026-03-08 17:20:01

Patch Perfect (Easy)

Time of First Successful Submission: 2026-03-08 17:22:37

Patch Perfect (Hard)

Time of First Successful Submission: 2026-03-08 17:24:24

Trust the Yancode (Easy)

Time of First Successful Submission: 2026-03-08 18:45:08

Trust the Yancode (Hard)

Time of First Successful Submission: 2026-03-08 19:05:43

Know the Yancode (Easy)

Time of First Successful Submission: 2026-03-08 19:10:35

Know the Yancode (Hard)

Time of First Successful Submission: 2026-03-08 19:14:03

Master the Yancode (Easy)

Time of First Successful Submission: 2026-03-08 19:24:32

Master the Yancode (Hard)

Time of First Successful Submission: 2026-03-08 19:30:19

Transcend the Yancode (Easy)

Time of First Successful Submission: 2026-03-08 19:38:02

Transcend the Yancode (Hard)

Time of First Successful Submission: 2026-03-08 19:40:54

The Yanalyzer (Easy)

Time of First Successful Submission: 2026-03-13 20:47:04

The Yanalyzer (Hard)

Time of First Successful Submission: 2026-03-13 21:30:45

The Yangler (Easy)

Time of First Successful Submission: 2026-03-13 22:38:45

The Yangler (Hard)

Time of First Successful Submission: 2026-03-13 22:55:22

Yancraft (Easy)

Time of First Successful Submission: 2026-03-13 23:47:56

Yancraft (Hard)

Time of First Successful Submission: 2026-03-14 00:12:00

Yansanity (Easy)

Time of First Successful Submission: 2026-03-14 00:32:40

When the Cow Says Moo

Time of First Successful Submission: 2026-03-08 22:07:02

Loose Link (Easy)

Time of First Successful Submission: 2026-03-11 18:06:09

Loose Link (Hard)

Time of First Successful Submission: 2026-03-11 18:12:39

Call Chain (Easy)

Time of First Successful Submission: 2026-03-11 19:15:42

Call Chain (Hard)

Time of First Successful Submission: 2026-03-11 19:17:50

Freebie (Easy)

Time of First Successful Submission: 2026-03-12 17:53:29

Freebie (Hard)

Time of First Successful Submission: 2026-03-12 18:02:17

Freebin Feint (Easy)

Time of First Successful Submission: 2026-03-12 18:21:17

Freebin Feint (Hard)

Time of First Successful Submission: 2026-03-12 19:54:29

Free Flag Fumble (Easy)

Time of First Successful Submission: 2026-03-12 19:57:00

Free Flag Fumble (Hard)

Time of First Successful Submission: 2026-03-12 20:00:26


System Security

16 / 95 1553 / 3293


chroot-escape-basic

Time of First Successful Submission: 2026-03-05 21:14:15

chroot-shellcode

Time of First Successful Submission: 2026-03-05 21:16:45

chroot-proper

Time of First Successful Submission: 2026-03-05 21:33:57

seccomp-basic

Time of First Successful Submission: 2026-03-05 21:35:10

seccomp-linkat

Time of First Successful Submission: 2026-03-05 22:04:17

seccomp-fchdir

Time of First Successful Submission: 2026-03-05 22:06:56

seccomp-rechroot

Time of First Successful Submission: 2026-03-05 23:51:43

seccomp-only

Time of First Successful Submission: 2026-03-06 00:04:27

seccomp-arch32

Time of First Successful Submission: 2026-03-06 00:30:41

seccomp-minimal

Time of First Successful Submission: 2026-03-06 17:06:51

seccomp-timebased

Time of First Successful Submission: 2026-03-06 18:51:09

seccomp-readonly

Time of First Successful Submission: 2026-03-06 20:36:55

mount-namespace

Time of First Successful Submission: 2026-03-06 21:12:20

mount-cleanup

Time of First Successful Submission: 2026-03-06 21:43:06

mount-readonly

Time of First Successful Submission: 2026-03-06 21:46:54

mount-shellcode

Time of First Successful Submission: 2026-03-06 21:58:46


Start Here

12 / 12 1557 / 42130


Using the Terminal

Time of First Successful Submission: 2026-02-22 00:22:45

Using the VSCode Workspace

Time of First Successful Submission: 2026-02-22 00:23:38

Using the GUI Desktop

Time of First Successful Submission: 2026-02-22 00:24:50

Pasting into the Desktop

Time of First Successful Submission: 2026-02-22 00:25:53

Restarting Challenges

Time of First Successful Submission: 2026-02-22 00:31:45

Challenge Programs

Time of First Successful Submission: 2026-02-22 00:34:08

The Flag File

Time of First Successful Submission: 2026-02-22 00:35:12

Using Privileged Mode

Time of First Successful Submission: 2026-02-22 00:36:42

Persistent Home Directories - One

Time of First Successful Submission: 2026-02-22 00:38:03

Persistent Home Directories - Two

Time of First Successful Submission: 2026-02-22 00:38:30


Linux Luminarium

128 / 128 2171 / 31471


Intro to Commands

Time of First Successful Submission: 2026-02-22 00:39:44

Intro to Arguments

Time of First Successful Submission: 2026-02-22 00:40:15

Command History

Time of First Successful Submission: 2026-02-22 00:40:52

The Root

Time of First Successful Submission: 2026-02-22 00:41:48

Program and absolute paths

Time of First Successful Submission: 2026-02-22 00:43:00

Position thy self

Time of First Successful Submission: 2026-02-22 00:43:40

Position elsewhere

Time of First Successful Submission: 2026-02-22 00:44:33

implicit relative paths, from /

Time of First Successful Submission: 2026-02-22 00:45:20

explicit relative paths, from /

Time of First Successful Submission: 2026-02-22 00:46:10

implicit relative path

Time of First Successful Submission: 2026-02-22 00:46:36

home sweet home

Time of First Successful Submission: 2026-02-22 00:47:43

cat: not the pet, but the command!

Time of First Successful Submission: 2026-02-22 00:49:02

catting absolute paths

Time of First Successful Submission: 2026-02-22 00:49:26

more catting practice

Time of First Successful Submission: 2026-02-22 00:50:57

grepping for a needle in a haystack

Time of First Successful Submission: 2026-02-22 00:51:47

comparing files

Time of First Successful Submission: 2026-02-22 00:52:41

listing files

Time of First Successful Submission: 2026-02-22 00:53:11

touching files

Time of First Successful Submission: 2026-02-22 00:53:39

removing files

Time of First Successful Submission: 2026-02-22 00:54:02

moving files

Time of First Successful Submission: 2026-02-22 00:54:30

copying files

Time of First Successful Submission: 2026-02-22 00:54:54

hidden files

Time of First Successful Submission: 2026-02-22 00:55:24

An Epic Filesystem Quest

Time of First Successful Submission: 2026-02-22 00:57:39

making directories

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

finding files

Time of First Successful Submission: 2026-02-22 01:00:29

linking files

Time of First Successful Submission: 2026-02-22 01:02:07

Learning From Documentation

Time of First Successful Submission: 2026-02-22 01:02:44

Learning Complex Usage

Time of First Successful Submission: 2026-02-22 01:05:08

Reading Manuals

Time of First Successful Submission: 2026-02-22 01:06:07

Searching Manuals

Time of First Successful Submission: 2026-02-22 01:06:48

Searching For Manuals

Time of First Successful Submission: 2026-02-22 01:07:53

Helpful Programs

Time of First Successful Submission: 2026-02-22 01:08:26

Help for Builtins

Time of First Successful Submission: 2026-02-22 01:09:38

Matching with *

Time of First Successful Submission: 2026-02-22 01:10:32

Matching with ?

Time of First Successful Submission: 2026-02-22 01:11:11

Matching with []

Time of First Successful Submission: 2026-02-22 01:11:48

Matching paths with []

Time of First Successful Submission: 2026-02-22 01:12:21

Multiple globs

Time of First Successful Submission: 2026-02-22 01:13:12

Mixing globs

Time of First Successful Submission: 2026-02-22 01:26:48

Exclusionary globbing

Time of First Successful Submission: 2026-02-22 01:27:39

Tab completion

Time of First Successful Submission: 2026-02-22 01:28:14

Multiple options for tab completion

Time of First Successful Submission: 2026-02-22 01:29:06

Tab completion on commands

Time of First Successful Submission: 2026-02-22 01:30:15

Redirecting output

Time of First Successful Submission: 2026-02-22 01:34:08

Redirecting more output

Time of First Successful Submission: 2026-02-22 01:35:09

Appending output

Time of First Successful Submission: 2026-02-22 01:36:02

Redirecting errors

Time of First Successful Submission: 2026-02-22 01:38:11

Redirecting input

Time of First Successful Submission: 2026-02-22 01:42:10

Grepping stored results

Time of First Successful Submission: 2026-02-22 01:42:53

Grepping live output

Time of First Successful Submission: 2026-02-22 01:43:37

Grepping errors

Time of First Successful Submission: 2026-02-22 01:44:30

Filtering with grep -v

Time of First Successful Submission: 2026-02-22 01:45:47

Filtering with sed

Time of First Successful Submission: 2026-02-22 01:46:37

Duplicating piped data with tee

Time of First Successful Submission: 2026-02-22 01:51:26

Process substitution for input

Time of First Successful Submission: 2026-02-22 01:53:02

Writing to multiple programs

Time of First Successful Submission: 2026-02-22 01:58:30

Split-piping stderr and stdout

Time of First Successful Submission: 2026-02-22 01:59:38

Named pipes

Time of First Successful Submission: 2026-02-22 02:05:56

Printing Variables

Time of First Successful Submission: 2026-02-22 02:07:28

Setting Variables

Time of First Successful Submission: 2026-02-22 02:07:51

Multi-word Variables

Time of First Successful Submission: 2026-02-22 02:08:11

Exporting Variables

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

Printing Exported Variables

Time of First Successful Submission: 2026-02-22 02:09:27

Storing Command Output

Time of First Successful Submission: 2026-02-22 02:10:20

Reading Input

Time of First Successful Submission: 2026-02-22 02:11:47

Reading Files

Time of First Successful Submission: 2026-02-22 02:12:52

Translating characters

Time of First Successful Submission: 2026-02-22 02:13:39

Deleting characters

Time of First Successful Submission: 2026-02-22 02:14:02

Deleting newlines

Time of First Successful Submission: 2026-02-22 02:14:34

Extracting the first lines with head

Time of First Successful Submission: 2026-02-22 02:15:16

Extracting specific sections of text

Time of First Successful Submission: 2026-02-22 02:16:26

Sorting data

Time of First Successful Submission: 2026-02-22 02:17:24

Listing Processes

Time of First Successful Submission: 2026-02-22 02:20:19

Killing Processes

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

Interrupting Processes

Time of First Successful Submission: 2026-02-22 02:21:45

Killing Misbehaving Processes

Time of First Successful Submission: 2026-02-22 02:24:03

Suspending Processes

Time of First Successful Submission: 2026-02-22 02:24:46

Resuming Processes

Time of First Successful Submission: 2026-02-22 02:25:28

Backgrounding Processes

Time of First Successful Submission: 2026-02-22 02:26:41

Foregrounding Processes

Time of First Successful Submission: 2026-02-22 02:27:15

Starting Backgrounded Processes

Time of First Successful Submission: 2026-02-22 02:27:38

Process Exit Codes

Time of First Successful Submission: 2026-02-22 02:28:08

Becoming root with su

Time of First Successful Submission: 2026-02-22 02:29:58

Other users with su

Time of First Successful Submission: 2026-02-22 02:30:32

Cracking passwords

Time of First Successful Submission: 2026-02-22 02:33:14

Using sudo

Time of First Successful Submission: 2026-02-22 02:34:32

Changing File Ownership

Time of First Successful Submission: 2026-02-22 02:37:02

Groups and Files

Time of First Successful Submission: 2026-02-22 02:37:49

Fun With Groups Names

Time of First Successful Submission: 2026-02-22 02:38:29

Changing Permissions

Time of First Successful Submission: 2026-02-22 02:39:57

Executable Files

Time of First Successful Submission: 2026-02-22 02:40:30

Permission Tweaking Practice

Time of First Successful Submission: 2026-02-22 02:42:49

Permissions Setting Practice

Time of First Successful Submission: 2026-02-22 02:44:36

The SUID Bit

Time of First Successful Submission: 2026-02-22 02:45:51

Chaining with Semicolons

Time of First Successful Submission: 2026-02-22 02:46:44

Building on Success

Time of First Successful Submission: 2026-02-22 02:47:32

Handling Failure

Time of First Successful Submission: 2026-02-22 02:47:54

Your First Shell Script

Time of First Successful Submission: 2026-02-22 02:49:36

Redirecting Script Output

Time of First Successful Submission: 2026-02-22 02:50:38

Executable Shell Scripts

Time of First Successful Submission: 2026-02-22 02:51:24

Understanding Shebangs

Time of First Successful Submission: 2026-02-22 02:52:40

Scripting with Arguments

Time of First Successful Submission: 2026-02-22 02:53:29

Scripting with Conditionals

Time of First Successful Submission: 2026-02-22 02:58:11

Scripting with Default Cases

Time of First Successful Submission: 2026-02-22 02:58:55

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-02-22 03:00:07

Reading Shell Scripts

Time of First Successful Submission: 2026-02-22 03:00:41

Launching Screen

Time of First Successful Submission: 2026-02-22 03:01:21

Detaching and Attaching

Time of First Successful Submission: 2026-02-22 03:02:27

Finding Sessions

Time of First Successful Submission: 2026-02-22 03:03:43

Switching Windows

Time of First Successful Submission: 2026-02-22 03:05:00

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-02-22 03:06:07

Switching Windows (tmux)

Time of First Successful Submission: 2026-02-22 03:07:39

The PATH Variable

Time of First Successful Submission: 2026-02-22 03:08:50

Setting PATH

Time of First Successful Submission: 2026-02-22 03:09:46

Finding Commands

Time of First Successful Submission: 2026-02-22 03:10:36

Adding Commands

Time of First Successful Submission: 2026-02-22 03:13:43

Hijacking Commands

Time of First Successful Submission: 2026-02-22 03:17:26

Bashrc Backdoor

Time of First Successful Submission: 2026-02-22 03:20:12

Sniffing Input

Time of First Successful Submission: 2026-02-22 03:24:00

Overshared Directories

Time of First Successful Submission: 2026-02-22 03:27:49

Tricky Linking

Time of First Successful Submission: 2026-02-22 15:12:48

Sniffing Process Arguments

Time of First Successful Submission: 2026-02-22 15:15:17

Snooping on Configurations

Time of First Successful Submission: 2026-02-22 15:18:09

The Fork Bomb

Time of First Successful Submission: 2026-02-22 15:30:37

Disk-Space Doomsday

Time of First Successful Submission: 2026-02-22 15:33:45

rm -rf /

Time of First Successful Submission: 2026-02-22 15:36:45

Life after rm -rf /

Time of First Successful Submission: 2026-02-22 15:40:19

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-02-22 15:42:57


Computing 101

94 / 94 52 / 21142


Your First Register

Time of First Successful Submission: 2026-02-22 15:47:35

Your First Syscall

Time of First Successful Submission: 2026-02-22 15:49:23

Exit Codes

Time of First Successful Submission: 2026-02-22 15:50:26

Building Executables

Time of First Successful Submission: 2026-02-22 15:57:20

Moving Between Registers

Time of First Successful Submission: 2026-02-22 16:00:54

Loading From Memory

Time of First Successful Submission: 2026-02-22 16:03:15

More Loading Practice

Time of First Successful Submission: 2026-02-22 16:03:53

Dereferencing Pointers

Time of First Successful Submission: 2026-02-22 16:05:51

Dereferencing Yourself

Time of First Successful Submission: 2026-02-22 16:08:26

Dereferencing with Offsets

Time of First Successful Submission: 2026-02-22 16:09:32

Stored Addresses

Time of First Successful Submission: 2026-02-22 16:11:15

Double Dereference

Time of First Successful Submission: 2026-02-22 16:13:35

The Stack

Time of First Successful Submission: 2026-02-22 16:15:29

Stack Offsets

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

Program Arguments on the Stack

Time of First Successful Submission: 2026-02-22 16:19:32

Popping From the Stack

Time of First Successful Submission: 2026-02-22 16:22:01

Disassembling Programs

Time of First Successful Submission: 2026-02-22 16:28:29

Tracing Syscalls

Time of First Successful Submission: 2026-02-22 16:31:09

Starting GDB

Time of First Successful Submission: 2026-02-22 16:31:49

Quitting GDB

Time of First Successful Submission: 2026-02-22 16:32:25

Starting Programs in GDB

Time of First Successful Submission: 2026-02-22 16:33:43

Disassembling in GDB

Time of First Successful Submission: 2026-02-22 16:35:42

Stepping Through Instructions

Time of First Successful Submission: 2026-02-22 16:36:47

Reading Register Values

Time of First Successful Submission: 2026-02-22 16:39:13

Popping Stack Values

Time of First Successful Submission: 2026-02-22 16:41:56

Examining Memory

Time of First Successful Submission: 2026-02-22 16:43:00

Examining Stack Pointers

Time of First Successful Submission: 2026-02-22 16:47:54

Cooperative Debugging

Time of First Successful Submission: 2026-02-22 17:38:03

Writing Output

Time of First Successful Submission: 2026-02-22 17:12:47

Chaining Syscalls

Time of First Successful Submission: 2026-02-22 17:13:23

Writing Strings

Time of First Successful Submission: 2026-02-22 17:13:57

Reading Data

Time of First Successful Submission: 2026-02-22 17:25:36

Opening Files

Time of First Successful Submission: 2026-02-22 17:31:04

Hardcoding the Filename

Time of First Successful Submission: 2026-02-22 17:36:01

Comparing Values

Time of First Successful Submission: 2026-02-22 17:47:09

Comparing Characters

Time of First Successful Submission: 2026-02-22 17:51:37

Conditional Control Flow

Time of First Successful Submission: 2026-02-22 17:56:04

Comparing Strings

Time of First Successful Submission: 2026-02-22 17:58:06

Reverse the Password

Time of First Successful Submission: 2026-02-22 18:00:15

Conditionals Without Conditionals

Time of First Successful Submission: 2026-02-22 18:16:38

Looping

Time of First Successful Submission: 2026-02-22 18:20:22

Reverse the Calculation

Time of First Successful Submission: 2026-02-22 18:28:58

Reverse the Reverse

Time of First Successful Submission: 2026-02-22 18:32:25

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-02-22 18:33:32

Loops on Data

Time of First Successful Submission: 2026-02-22 18:34:10

set-register

Time of First Successful Submission: 2026-02-22 18:36:10

set-multiple-registers

Time of First Successful Submission: 2026-02-22 18:37:08

add-to-register

Time of First Successful Submission: 2026-02-22 18:37:41

linear-equation-registers

Time of First Successful Submission: 2026-02-22 18:38:56

integer-division

Time of First Successful Submission: 2026-02-22 18:41:22

modulo-operation

Time of First Successful Submission: 2026-02-22 18:41:59

set-upper-byte

Time of First Successful Submission: 2026-02-22 18:42:31

efficient-modulo

Time of First Successful Submission: 2026-02-22 18:46:26

byte-extraction

Time of First Successful Submission: 2026-02-22 18:55:05

bitwise-and

Time of First Successful Submission: 2026-02-22 18:56:49

check-even

Time of First Successful Submission: 2026-02-22 19:01:00

memory-read

Time of First Successful Submission: 2026-02-22 19:02:23

memory-write

Time of First Successful Submission: 2026-02-22 19:03:45

memory-increment

Time of First Successful Submission: 2026-02-22 19:05:38

byte-access

Time of First Successful Submission: 2026-02-22 19:06:59

memory-size-access

Time of First Successful Submission: 2026-02-22 19:07:51

little-endian-write

Time of First Successful Submission: 2026-02-22 19:12:01

memory-sum

Time of First Successful Submission: 2026-02-22 19:16:27

stack-subtraction

Time of First Successful Submission: 2026-02-22 19:18:09

swap-stack-values

Time of First Successful Submission: 2026-02-22 19:19:26

average-stack-values

Time of First Successful Submission: 2026-02-22 19:23:27

absolute-jump

Time of First Successful Submission: 2026-02-22 19:25:06

relative-jump

Time of First Successful Submission: 2026-02-22 19:29:05

jump-trampoline

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

conditional-jump

Time of First Successful Submission: 2026-02-22 19:38:51

indirect-jump

Time of First Successful Submission: 2026-02-22 19:55:01

average-loop

Time of First Successful Submission: 2026-02-22 20:06:13

count-non-zero

Time of First Successful Submission: 2026-02-22 20:14:02

string-lower

Time of First Successful Submission: 2026-02-22 21:14:53

most-common-byte

Time of First Successful Submission: 2026-02-24 01:00:15

Exit

Time of First Successful Submission: 2026-02-22 23:59:04

Socket

Time of First Successful Submission: 2026-02-23 00:05:39

Bind

Time of First Successful Submission: 2026-02-23 01:14:41

Listen

Time of First Successful Submission: 2026-02-23 01:16:30

Accept

Time of First Successful Submission: 2026-02-23 01:19:30

Static Response

Time of First Successful Submission: 2026-02-23 03:06:07

Dynamic Response

Time of First Successful Submission: 2026-02-23 20:47:16

Iterative GET Server

Time of First Successful Submission: 2026-02-23 20:56:12

Concurrent GET Server

Time of First Successful Submission: 2026-02-23 21:33:45

Concurrent POST Server

Time of First Successful Submission: 2026-02-24 00:10:57

Web Server

Time of First Successful Submission: 2026-02-24 00:23:55

Debugging Programs

Time of First Successful Submission: 2026-02-23 03:18:17

Inspecting Registers

Time of First Successful Submission: 2026-02-23 03:19:50

Examining Memory

Time of First Successful Submission: 2026-02-23 03:29:16

Setting Breakpoints

Time of First Successful Submission: 2026-02-23 03:43:40

GDB Scripting

Time of First Successful Submission: 2026-02-23 16:23:24

Modifying Data

Time of First Successful Submission: 2026-02-23 16:46:13

Modifying Execution

Time of First Successful Submission: 2026-02-23 16:47:06

Broken Functions

Time of First Successful Submission: 2026-02-23 17:11:45


Playing With Programs

116 / 116 771 / 23131


What's the password?

Time of First Successful Submission: 2026-02-24 01:06:39

... and again!

Time of First Successful Submission: 2026-02-24 01:07:12

Newline Troubles

Time of First Successful Submission: 2026-02-24 01:08:27

Reasoning about files

Time of First Successful Submission: 2026-02-24 01:09:28

Specifying Filenames

Time of First Successful Submission: 2026-02-24 01:10:09

Binary and Hex Encoding

Time of First Successful Submission: 2026-02-24 01:13:18

More Hex

Time of First Successful Submission: 2026-02-24 01:14:00

Decoding Hex

Time of First Successful Submission: 2026-02-24 01:16:19

Decoding Practice

Time of First Successful Submission: 2026-02-24 01:17:32

Encoding Practice

Time of First Successful Submission: 2026-02-24 01:19:04

Hex-encoding ASCII

Time of First Successful Submission: 2026-02-24 16:26:40

Nested Encoding

Time of First Successful Submission: 2026-02-24 16:29:03

Hex-encoding UTF-8

Time of First Successful Submission: 2026-02-24 16:33:32

UTF Mixups

Time of First Successful Submission: 2026-02-24 16:47:35

Modifying Encoded Data

Time of First Successful Submission: 2026-02-24 16:55:49

Decoding Base64

Time of First Successful Submission: 2026-02-24 16:58:28

Encoding Base64

Time of First Successful Submission: 2026-02-24 16:59:36

Dealing with Obfuscation

Time of First Successful Submission: 2026-02-24 18:02:36

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-02-24 18:17:35

Your First HTTP Request

Time of First Successful Submission: 2026-02-24 17:26:29

Reading Flask

Time of First Successful Submission: 2026-02-24 17:29:32

Commented Data

Time of First Successful Submission: 2026-02-24 17:30:46

HTTP Metadata

Time of First Successful Submission: 2026-02-24 18:19:04

HTTP (netcat)

Time of First Successful Submission: 2026-02-24 18:21:55

HTTP Paths (netcat)

Time of First Successful Submission: 2026-02-24 18:22:50

HTTP (curl)

Time of First Successful Submission: 2026-02-24 18:23:46

HTTP (python)

Time of First Successful Submission: 2026-02-24 18:27:33

HTTP Host Header (python)

Time of First Successful Submission: 2026-02-24 18:43:42

HTTP Host Header (curl)

Time of First Successful Submission: 2026-02-24 18:52:26

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-02-24 19:01:35

URL Encoding (netcat)

Time of First Successful Submission: 2026-02-24 19:29:14

HTTP GET Parameters

Time of First Successful Submission: 2026-02-24 19:30:31

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-02-24 19:32:13

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-02-24 19:34:51

HTTP Forms

Time of First Successful Submission: 2026-02-24 19:35:36

HTTP Forms (curl)

Time of First Successful Submission: 2026-02-24 19:37:08

HTTP Forms (netcat)

Time of First Successful Submission: 2026-02-24 19:39:51

HTTP Forms (python)

Time of First Successful Submission: 2026-02-24 19:42:21

HTTP Forms Without Forms

Time of First Successful Submission: 2026-02-24 19:55:01

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-02-24 19:56:25

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-02-24 20:00:02

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-02-24 20:02:36

HTTP Redirects (curl)

Time of First Successful Submission: 2026-02-24 20:03:21

HTTP Redirects (python)

Time of First Successful Submission: 2026-02-24 20:04:17

HTTP Cookies (curl)

Time of First Successful Submission: 2026-02-24 20:08:03

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-02-24 20:10:11

HTTP Cookies (python)

Time of First Successful Submission: 2026-02-24 20:11:36

Server State (python)

Time of First Successful Submission: 2026-02-24 20:13:14

Listening Web

Time of First Successful Submission: 2026-02-24 20:16:12

Speaking Redirects

Time of First Successful Submission: 2026-02-24 20:23:18

JavaScript Redirects

Time of First Successful Submission: 2026-02-24 20:28:44

Including JavaScript

Time of First Successful Submission: 2026-02-24 20:37:27

HTTP (javascript)

Time of First Successful Submission: 2026-02-24 20:50:27

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-02-24 20:52:42

HTTP Forms (javascript)

Time of First Successful Submission: 2026-02-24 20:56:40

cat

Time of First Successful Submission: 2026-02-24 20:59:47

more

Time of First Successful Submission: 2026-02-24 21:00:14

less

Time of First Successful Submission: 2026-02-24 21:00:36

tail

Time of First Successful Submission: 2026-02-24 21:00:55

head

Time of First Successful Submission: 2026-02-24 21:01:12

sort

Time of First Successful Submission: 2026-02-24 21:01:30

vim

Time of First Successful Submission: 2026-02-24 21:01:49

emacs

Time of First Successful Submission: 2026-02-24 21:02:29

nano

Time of First Successful Submission: 2026-02-24 21:03:07

rev

Time of First Successful Submission: 2026-02-24 21:03:26

od

Time of First Successful Submission: 2026-02-24 21:06:19

hd

Time of First Successful Submission: 2026-02-24 21:13:48

xxd

Time of First Successful Submission: 2026-02-24 21:14:11

base32

Time of First Successful Submission: 2026-02-24 21:14:32

base64

Time of First Successful Submission: 2026-02-24 21:14:51

split

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

gzip

Time of First Successful Submission: 2026-02-24 21:19:07

bzip2

Time of First Successful Submission: 2026-02-24 21:20:10

zip

Time of First Successful Submission: 2026-02-24 21:23:14

tar

Time of First Successful Submission: 2026-02-24 21:28:08

ar

Time of First Successful Submission: 2026-02-24 21:31:28

cpio

Time of First Successful Submission: 2026-02-24 21:33:47

genisoimage

Time of First Successful Submission: 2026-02-24 23:11:32

env

Time of First Successful Submission: 2026-02-24 23:13:48

find

Time of First Successful Submission: 2026-02-24 23:18:18

make

Time of First Successful Submission: 2026-02-24 23:21:51

nice

Time of First Successful Submission: 2026-02-24 23:22:22

timeout

Time of First Successful Submission: 2026-02-24 23:23:04

stdbuf

Time of First Successful Submission: 2026-02-24 23:23:49

setarch

Time of First Successful Submission: 2026-02-24 23:24:49

watch

Time of First Successful Submission: 2026-02-24 23:26:19

socat

Time of First Successful Submission: 2026-02-24 23:29:44

whiptail

Time of First Successful Submission: 2026-02-24 23:41:43

awk

Time of First Successful Submission: 2026-02-24 23:40:03

sed

Time of First Successful Submission: 2026-02-24 23:42:21

ed

Time of First Successful Submission: 2026-02-24 23:44:12

chown

Time of First Successful Submission: 2026-02-24 23:44:42

chmod

Time of First Successful Submission: 2026-02-24 23:45:02

cp

Time of First Successful Submission: 2026-02-24 23:46:40

mv

Time of First Successful Submission: 2026-02-25 00:28:01

perl

Time of First Successful Submission: 2026-02-25 00:28:14

python

Time of First Successful Submission: 2026-02-25 00:31:37

ruby

Time of First Successful Submission: 2026-02-25 00:33:51

bash

Time of First Successful Submission: 2026-02-25 00:42:25

date

Time of First Successful Submission: 2026-02-25 00:43:19

dmesg

Time of First Successful Submission: 2026-02-25 00:44:09

wc

Time of First Successful Submission: 2026-02-25 00:46:16

gcc

Time of First Successful Submission: 2026-02-25 00:57:26

as

Time of First Successful Submission: 2026-02-25 00:58:10

wget

Time of First Successful Submission: 2026-02-25 01:22:53

ssh-keygen

Time of First Successful Submission: 2026-02-25 16:59:50

SQL Queries

Time of First Successful Submission: 2026-02-25 02:00:34

Filtering SQL

Time of First Successful Submission: 2026-02-25 02:07:05

Choosing Columns

Time of First Successful Submission: 2026-02-25 02:08:03

Exclusionary Filtering

Time of First Successful Submission: 2026-02-25 02:10:38

Filtering Strings

Time of First Successful Submission: 2026-02-25 02:12:09

Filtering on Expressions

Time of First Successful Submission: 2026-02-25 02:15:06

SELECTing Expressions

Time of First Successful Submission: 2026-02-25 16:24:05

Composite Conditions

Time of First Successful Submission: 2026-02-25 16:32:08

Reaching Your LIMITs

Time of First Successful Submission: 2026-02-25 16:33:24

Querying Metadata

Time of First Successful Submission: 2026-02-25 16:35:23


GCA CTF

12 / 104 1783 / 42406


Using the Terminal

Time of First Successful Submission: 2026-02-22 00:22:45

Using the VSCode Workspace

Time of First Successful Submission: 2026-02-22 00:23:38

Using the GUI Desktop

Time of First Successful Submission: 2026-02-22 00:24:50

Pasting into the Desktop

Time of First Successful Submission: 2026-02-22 00:25:53

Connecting over SSH

Time of First Successful Submission: 2026-02-22 00:29:04

Restarting Challenges

Time of First Successful Submission: 2026-02-22 00:31:45

Getting Help

Time of First Successful Submission: 2026-03-06 16:20:20

Challenge Programs

Time of First Successful Submission: 2026-02-22 00:34:08

The Flag File

Time of First Successful Submission: 2026-02-22 00:35:12

Using Privileged Mode

Time of First Successful Submission: 2026-02-22 00:36:42

Persistent Home Directories - One

Time of First Successful Submission: 2026-02-22 00:38:03

Persistent Home Directories - Two

Time of First Successful Submission: 2026-02-22 00:38:30


Pwntools Tutorials

12 / 12 345 / 1192


Level 0.0

Time of First Successful Submission: 2026-03-14 03:22:26

Level 1.0

Time of First Successful Submission: 2026-03-14 03:25:59

Level 1.1

Time of First Successful Submission: 2026-03-14 14:01:59

Level 2.0

Time of First Successful Submission: 2026-03-14 14:10:09

Level 2.1

Time of First Successful Submission: 2026-03-14 14:11:58

Level 2.2

Time of First Successful Submission: 2026-03-14 14:16:56

Level 2.3

Time of First Successful Submission: 2026-03-14 14:20:35

Level 2.4

Time of First Successful Submission: 2026-03-14 14:24:00

Level 2.5

Time of First Successful Submission: 2026-03-14 14:34:26

Level 2.6

Time of First Successful Submission: 2026-03-14 14:40:11

Level 3.0

Time of First Successful Submission: 2026-03-14 15:13:27

Level 4.0

Time of First Successful Submission: 2026-03-14 15:25:27