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Intro to Programming Languages

15 / 234 1735 / 29395

Commands

Time of First Successful Submission: 2025-04-26 00:17:26

Command Arguments

Time of First Successful Submission: 2025-04-26 00:18:47

Command History

Time of First Successful Submission: 2025-07-04 00:43:45

The Root Path

Time of First Successful Submission: 2025-04-26 00:20:30

Absolute Paths

Time of First Successful Submission: 2025-04-26 00:22:01

Changing position

Time of First Successful Submission: 2025-04-26 00:23:39

Changing to an Absolute Path

Time of First Successful Submission: 2025-04-26 00:25:52

Relative Paths

Time of First Successful Submission: 2025-04-26 00:28:15

Cat

Time of First Successful Submission: 2025-04-26 00:55:08

Ls

Time of First Successful Submission: 2025-04-26 00:59:52

Ls All

Time of First Successful Submission: 2025-04-26 01:04:19

Find

Time of First Successful Submission: 2025-04-26 01:17:53

Piping Echo

Time of First Successful Submission: 2025-04-26 14:25:41

Piping Stdout

Time of First Successful Submission: 2025-04-26 14:27:44

Piping Stdin

Time of First Successful Submission: 2025-04-26 14:01:44

Intro to Cybersecurity

183 / 183 47 / 18824

Path Traversal 1

Time of First Successful Submission: 2025-07-19 14:37:02

Path Traversal 2

Time of First Successful Submission: 2025-07-19 14:54:40

CMDi 1

Time of First Successful Submission: 2025-07-19 14:59:32

CMDi 2

Time of First Successful Submission: 2025-07-19 15:03:35

CMDi 3

Time of First Successful Submission: 2025-07-19 15:08:46

CMDi 4

Time of First Successful Submission: 2025-07-19 15:14:32

CMDi 5

Time of First Successful Submission: 2025-07-19 15:17:34

CMDi 6

Time of First Successful Submission: 2025-07-19 15:21:45

Authentication Bypass 1

Time of First Successful Submission: 2025-07-19 15:26:05

Authentication Bypass 2

Time of First Successful Submission: 2025-07-19 15:28:55

SQLi 1

Time of First Successful Submission: 2025-07-19 22:52:47

SQLi 2

Time of First Successful Submission: 2025-07-19 22:57:52

SQLi 3

Time of First Successful Submission: 2025-07-19 23:05:00

SQLi 4

Time of First Successful Submission: 2025-07-19 23:10:51

SQLi 5

Time of First Successful Submission: 2025-07-19 23:59:56

XSS 1

Time of First Successful Submission: 2025-07-20 12:12:29

XSS 2

Time of First Successful Submission: 2025-07-20 12:18:16

XSS 3

Time of First Successful Submission: 2025-07-20 12:23:11

XSS 4

Time of First Successful Submission: 2025-07-20 12:27:42

XSS 5

Time of First Successful Submission: 2025-07-20 12:50:21

XSS 6

Time of First Successful Submission: 2025-07-20 23:02:00

XSS 7

Time of First Successful Submission: 2025-07-20 23:22:58

CSRF 1

Time of First Successful Submission: 2025-07-21 21:18:59

CSRF 2

Time of First Successful Submission: 2025-07-21 21:44:45

CSRF 3

Time of First Successful Submission: 2025-07-21 22:26:45

CSRF 4

Time of First Successful Submission: 2025-07-21 22:33:56

CSRF 5

Time of First Successful Submission: 2025-07-21 22:55:34

Connect

Time of First Successful Submission: 2025-07-22 21:56:40

Send

Time of First Successful Submission: 2025-07-22 21:59:25

Shutdown

Time of First Successful Submission: 2025-07-22 22:03:29

Listen

Time of First Successful Submission: 2025-07-22 22:04:56

Scan 1

Time of First Successful Submission: 2025-07-22 22:40:20

Scan 2

Time of First Successful Submission: 2025-07-22 23:10:32

Monitor 1

Time of First Successful Submission: 2025-07-22 23:15:46

Monitor 2

Time of First Successful Submission: 2025-07-22 23:19:52

Sniffing Cookies

Time of First Successful Submission: 2025-07-23 21:43:07

Network Configuration

Time of First Successful Submission: 2025-07-23 22:11:27

Firewall 1

Time of First Successful Submission: 2025-07-23 23:39:57

Firewall 2

Time of First Successful Submission: 2025-07-23 23:42:43

Firewall 3

Time of First Successful Submission: 2025-07-23 23:50:29

Denial of Service 1

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

Denial of Service 2

Time of First Successful Submission: 2025-07-25 00:13:08

Denial of Service 3

Time of First Successful Submission: 2025-07-25 23:59:40

Ethernet

Time of First Successful Submission: 2025-07-26 00:12:12

IP

Time of First Successful Submission: 2025-07-26 00:14:42

TCP

Time of First Successful Submission: 2025-07-26 00:20:14

TCP Handshake

Time of First Successful Submission: 2025-07-26 00:32:16

UDP

Time of First Successful Submission: 2025-07-26 01:02:41

UDP 2

Time of First Successful Submission: 2025-07-26 01:06:27

UDP Spoofing 1

Time of First Successful Submission: 2025-07-26 01:14:28

UDP Spoofing 2

Time of First Successful Submission: 2025-07-26 01:21:57

UDP Spoofing 3

Time of First Successful Submission: 2025-07-26 01:31:07

UDP Spoofing 4

Time of First Successful Submission: 2025-07-26 01:52:25

ARP

Time of First Successful Submission: 2025-07-26 10:42:05

Intercept

Time of First Successful Submission: 2025-07-26 10:47:16

Man-in-the-Middle

Time of First Successful Submission: 2025-07-27 21:51:32

XOR

Time of First Successful Submission: 2025-07-29 22:27:26

XORing Hex

Time of First Successful Submission: 2025-07-29 22:34:19

XORing ASCII

Time of First Successful Submission: 2025-07-29 22:48:01

XORing ASCII Strings

Time of First Successful Submission: 2025-07-30 22:16:54

One-time Pad

Time of First Successful Submission: 2025-07-30 22:28:37

One-time Pad Tampering

Time of First Successful Submission: 2025-07-31 21:11:45

Many-time Pad

Time of First Successful Submission: 2025-07-31 21:40:19

AES

Time of First Successful Submission: 2025-08-01 00:11:08

AES-ECB-CPA

Time of First Successful Submission: 2025-08-01 00:42:24

AES-ECB-CPA-HTTP

Time of First Successful Submission: 2025-08-01 23:14:19

AES-ECB-CPA-HTTP (base64)

Time of First Successful Submission: 2025-08-01 23:16:53

AES-ECB-CPA-Suffix

Time of First Successful Submission: 2025-08-01 23:39:52

AES-ECB-CPA-Prefix

Time of First Successful Submission: 2025-08-02 00:10:51

AES-ECB-CPA-Prefix-2

Time of First Successful Submission: 2025-08-02 00:18:26

AES-ECB-CPA-Prefix-Miniboss

Time of First Successful Submission: 2025-08-02 01:56:19

AES-ECB-CPA-Prefix-Boss

Time of First Successful Submission: 2025-08-02 23:00:26

AES-CBC

Time of First Successful Submission: 2025-08-02 23:17:13

AES-CBC Tampering

Time of First Successful Submission: 2025-08-03 12:01:42

AES-CBC Resizing

Time of First Successful Submission: 2025-08-03 12:04:51

AES-CBC-POA-Partial-Block

Time of First Successful Submission: 2025-08-03 18:57:27

AES-CBC-POA-Full-Block

Time of First Successful Submission: 2025-08-03 19:55:10

AES-CBC-POA-Multi-Block

Time of First Successful Submission: 2025-08-03 23:02:59

AES-CBC-POA-Encrypt

Time of First Successful Submission: 2025-08-04 19:43:19

AES-CBC-POA-Encrypt-2

Time of First Successful Submission: 2025-09-08 23:35:29

DHKE

Time of First Successful Submission: 2025-08-04 20:05:38

DHKE-to-AES

Time of First Successful Submission: 2025-08-04 20:19:50

RSA 1

Time of First Successful Submission: 2025-08-05 21:46:17

RSA 2

Time of First Successful Submission: 2025-08-05 21:53:18

RSA 3

Time of First Successful Submission: 2025-08-06 21:04:55

RSA 4

Time of First Successful Submission: 2025-08-06 22:35:05

RSA Signatures

Time of First Successful Submission: 2025-08-05 22:53:06

SHA 1

Time of First Successful Submission: 2025-08-06 20:17:09

SHA 2

Time of First Successful Submission: 2025-08-06 20:36:47

TLS 1

Time of First Successful Submission: 2025-08-07 00:00:01

TLS 2

Time of First Successful Submission: 2025-08-07 20:26:32

level1

Time of First Successful Submission: 2025-08-07 21:07:09

level2

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

level3

Time of First Successful Submission: 2025-08-07 21:09:45

level4

Time of First Successful Submission: 2025-08-07 21:10:58

level5

Time of First Successful Submission: 2025-08-07 21:16:53

level6

Time of First Successful Submission: 2025-08-07 21:18:40

level7

Time of First Successful Submission: 2025-08-07 21:21:49

level8

Time of First Successful Submission: 2025-08-07 21:23:06

level9

Time of First Successful Submission: 2025-08-07 21:25:01

level10

Time of First Successful Submission: 2025-08-07 21:26:55

level11

Time of First Successful Submission: 2025-08-07 21:31:01

level12

Time of First Successful Submission: 2025-08-07 21:34:59

level13

Time of First Successful Submission: 2025-08-07 21:36:40

level14

Time of First Successful Submission: 2025-08-07 21:38:49

level15

Time of First Successful Submission: 2025-08-07 21:40:20

level16

Time of First Successful Submission: 2025-08-07 21:43:16

level17

Time of First Successful Submission: 2025-08-07 22:58:38

level18

Time of First Successful Submission: 2025-08-07 23:00:45

level19

Time of First Successful Submission: 2025-08-07 23:08:16

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2025-08-08 22:36:55

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2025-08-08 22:44:49

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2025-08-08 22:57:46

Reading Endianness (Python)

Time of First Successful Submission: 2025-08-08 23:03:45

Reading Endianness (C)

Time of First Successful Submission: 2025-08-08 23:07:01

Reading Endianness (x86)

Time of First Successful Submission: 2025-08-08 23:15:53

Version Information (Python)

Time of First Successful Submission: 2025-08-09 02:28:54

Version Information (C)

Time of First Successful Submission: 2025-08-09 02:33:17

Version Information (x86)

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

Metadata and Data (Python)

Time of First Successful Submission: 2025-08-09 02:45:09

Metadata and Data (C)

Time of First Successful Submission: 2025-08-09 02:50:12

Metadata and Data (x86)

Time of First Successful Submission: 2025-08-09 03:04:54

Input Restrictions (Python)

Time of First Successful Submission: 2025-08-09 11:43:26

Input Restrictions (C)

Time of First Successful Submission: 2025-08-09 11:48:25

Input Restrictions (x86)

Time of First Successful Submission: 2025-08-09 11:52:58

Behold the cIMG! (Python)

Time of First Successful Submission: 2025-08-09 12:11:05

Behold the cIMG! (C)

Time of First Successful Submission: 2025-08-09 12:14:31

Behold the cIMG! (x86)

Time of First Successful Submission: 2025-08-09 12:19:43

A Basic cIMG (Python)

Time of First Successful Submission: 2025-08-09 12:39:22

A Basic cIMG (C)

Time of First Successful Submission: 2025-08-09 12:44:25

A Basic cIMG (x86)

Time of First Successful Submission: 2025-08-09 12:51:10

Internal State Mini (C)

Time of First Successful Submission: 2025-08-09 14:35:13

Internal State Mini (x86)

Time of First Successful Submission: 2025-08-10 01:20:07

Internal State (C)

Time of First Successful Submission: 2025-08-10 01:49:57

Internal State (x86)

Time of First Successful Submission: 2025-08-10 02:05:28

File Formats: Directives (C)

Time of First Successful Submission: 2025-08-10 11:40:22

File Formats: Directives (x86)

Time of First Successful Submission: 2025-08-10 12:07:01

The Patch Directive

Time of First Successful Submission: 2025-08-12 22:32:51

Optimizing for Space

Time of First Successful Submission: 2025-08-12 23:28:09

Tweaking Images

Time of First Successful Submission: 2025-08-13 21:09:18

Storage and Retrieval

Time of First Successful Submission: 2025-08-17 01:55:28

Extracting Knowledge

Time of First Successful Submission: 2025-08-17 03:05:39

Advanced Sprites

Time of First Successful Submission: 2025-08-19 23:35:51

Accessing Resources

Time of First Successful Submission: 2025-08-20 00:15:16

Unsafe Animations

Time of First Successful Submission: 2025-08-20 23:17:15

Animations

Time of First Successful Submission: 2025-08-20 23:44:07

Interoperability: Patching Data

Time of First Successful Submission: 2025-08-21 21:58:20

Patching Code

Time of First Successful Submission: 2025-08-21 22:33:01

Patching Control Flow

Time of First Successful Submission: 2025-08-21 23:20:27

Your First Overflow (easy)

Time of First Successful Submission: 2025-08-22 22:00:50

Your First Overflow (hard)

Time of First Successful Submission: 2025-08-22 22:05:45

Precision (easy)

Time of First Successful Submission: 2025-08-22 22:08:53

Precision (hard)

Time of First Successful Submission: 2025-08-22 22:14:35

Variable Control (easy)

Time of First Successful Submission: 2025-08-22 22:22:50

Variable Control (hard)

Time of First Successful Submission: 2025-08-23 01:56:03

Control Hijack (easy)

Time of First Successful Submission: 2025-08-23 02:09:28

Control Hijack (hard)

Time of First Successful Submission: 2025-08-23 02:20:16

Tricky Control Hijack (easy)

Time of First Successful Submission: 2025-08-23 02:30:56

Tricky Control Hijack (hard)

Time of First Successful Submission: 2025-08-23 02:35:42

PIEs (easy)

Time of First Successful Submission: 2025-08-23 12:01:39

PIEs (hard)

Time of First Successful Submission: 2025-08-23 12:06:17

String Lengths (easy)

Time of First Successful Submission: 2025-08-23 12:18:25

String Lengths (hard)

Time of First Successful Submission: 2025-08-23 12:22:31

Basic Shellcode

Time of First Successful Submission: 2025-08-23 23:29:12

NOP Sleds

Time of First Successful Submission: 2025-08-23 23:34:22

NULL-Free Shellcode

Time of First Successful Submission: 2025-08-23 23:50:05

Hijack to (Mapped) Shellcode (easy)

Time of First Successful Submission: 2025-08-24 02:38:35

Hijack to (Mapped) Shellcode (hard)

Time of First Successful Submission: 2025-08-24 02:43:41

Hijack to Shellcode (easy)

Time of First Successful Submission: 2025-08-24 03:12:30

Hijack to Shellcode (hard)

Time of First Successful Submission: 2025-08-24 12:16:04

ECB-to-Win (easy)

Time of First Successful Submission: 2025-08-25 22:14:17

ECB-to-Win (hard)

Time of First Successful Submission: 2025-08-25 22:45:20

ECB-to-Shellcode (easy)

Time of First Successful Submission: 2025-08-26 22:36:33

ECB-to-Shellcode (hard)

Time of First Successful Submission: 2025-08-26 22:38:36

CIMG Screenshots

Time of First Successful Submission: 2025-08-31 01:57:30

CIMG Screenshots 2

Time of First Successful Submission: 2025-08-31 02:58:08

Wily Webserver

Time of First Successful Submission: 2025-08-31 11:34:08

The Watering Hole

Time of First Successful Submission: 2025-08-31 23:28:17

Secure Chat 1

Time of First Successful Submission: 2025-09-01 14:00:55

Secure Chat 2

Time of First Successful Submission: 2025-09-02 00:18:38

Secure Chat 3

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

Secure Chat 4

Time of First Successful Submission: 2025-09-06 03:24:55

Secure Chat 5

Time of First Successful Submission: 2025-09-08 23:25:42

Program Security

159 / 162 42 / 9179

ello ackers!

Time of First Successful Submission: 2025-09-10 23:54:13

Syscall Smuggler

Time of First Successful Submission: 2025-09-16 00:48:00

Syscall Shenanigans

Time of First Successful Submission: 2025-09-16 01:34:00

Byte Budget

Time of First Successful Submission: 2025-09-16 20:01:19

ClobberCode

Time of First Successful Submission: 2025-09-17 00:48:54

Diverse Delivery

Time of First Successful Submission: 2025-09-17 00:56:53

Pocket Payload

Time of First Successful Submission: 2025-09-17 01:23:29

Micro Menace

Time of First Successful Submission: 2025-09-17 02:10:32

Login Leakage (Easy)

Time of First Successful Submission: 2025-09-19 11:41:28

Login Leakage (Hard)

Time of First Successful Submission: 2025-09-19 11:55:46

Bounds Breaker (Easy)

Time of First Successful Submission: 2025-09-19 12:14:11

Bounds Breaker (Hard)

Time of First Successful Submission: 2025-09-19 12:28:14

Casting Catastrophe (Easy)

Time of First Successful Submission: 2025-09-19 13:19:46

Casting Catastrophe (Hard)

Time of First Successful Submission: 2025-09-21 20:38:56

Pointer Problems (Easy)

Time of First Successful Submission: 2025-09-21 21:10:06

Pointer Problems (Hard)

Time of First Successful Submission: 2025-09-21 22:18:27

Anomalous Array (Easy)

Time of First Successful Submission: 2025-09-22 13:19:42

Anomalous Array (Hard)

Time of First Successful Submission: 2025-09-22 13:38:48

Now you got it (Easy)

Time of First Successful Submission: 2025-09-22 20:35:48

Now you got it (Hard)

Time of First Successful Submission: 2025-09-22 23:10:30

Loop Lunacy (Easy)

Time of First Successful Submission: 2025-09-22 23:53:16

Loop Lunacy (Hard)

Time of First Successful Submission: 2025-09-23 10:54:48

Nosy Neighbor (Easy)

Time of First Successful Submission: 2025-09-23 11:14:49

Nosy Neighbor (Hard)

Time of First Successful Submission: 2025-09-23 11:23:27

Recursive Ruin (Easy)

Time of First Successful Submission: 2025-09-23 12:37:22

Recursive Ruin (Hard)

Time of First Successful Submission: 2025-09-23 12:54:08

Lingering Leftover (Easy)

Time of First Successful Submission: 2025-09-23 17:55:04

Lingering Leftover (Hard)

Time of First Successful Submission: 2025-09-23 17:59:53

Latent Leak (Easy)

Time of First Successful Submission: 2025-09-23 22:15:47

Latent Leak (Hard)

Time of First Successful Submission: 2025-09-23 22:30:28

Fork Foolery (Easy)

Time of First Successful Submission: 2025-09-24 13:06:52

Fork Foolery (Hard)

Time of First Successful Submission: 2025-09-24 13:13:22

Canary Conundrum (Easy)

Time of First Successful Submission: 2025-09-24 16:04:13

Canary Conundrum (Hard)

Time of First Successful Submission: 2025-09-24 16:22:57

A Crafty Clobber (Easy)

Time of First Successful Submission: 2025-09-24 23:35:08

A Crafty Clobber (Hard)

Time of First Successful Submission: 2025-09-24 23:43:04

Can It Fizz?

Time of First Successful Submission: 2025-09-25 11:59:05

Does It Buzz?

Time of First Successful Submission: 2025-09-25 19:27:01

Make It FizzBuzz

Time of First Successful Submission: 2025-09-26 12:53:23

Terrible Token (Easy)

Time of First Successful Submission: 2025-09-30 22:51:04

Terrible Token (Hard)

Time of First Successful Submission: 2025-09-30 22:58:20

Tangled Ticket (Easy)

Time of First Successful Submission: 2025-09-30 23:01:09

Tangled Ticket (Hard)

Time of First Successful Submission: 2025-09-30 23:16:02

Bit Bender

Time of First Successful Submission: 2025-10-15 20:44:16

Substitution Sorcery

Time of First Successful Submission: 2025-10-15 22:44:21

Meager Mangler (Easy)

Time of First Successful Submission: 2025-10-15 23:00:06

Meager Mangler (Hard)

Time of First Successful Submission: 2025-10-16 19:33:50

Monstrous Mangler (Easy)

Time of First Successful Submission: 2025-10-16 19:51:56

Monstrous Mangler (Hard)

Time of First Successful Submission: 2025-10-16 20:23:10

Patched Up (Easy)

Time of First Successful Submission: 2025-10-17 18:54:01

Patched Up (Hard)

Time of First Successful Submission: 2025-10-17 19:02:54

Puzzle Patch (Easy)

Time of First Successful Submission: 2025-10-17 19:13:40

Puzzle Patch (Hard)

Time of First Successful Submission: 2025-10-17 19:19:14

Patch Perfect (Easy)

Time of First Successful Submission: 2025-10-17 19:36:08

Patch Perfect (Hard)

Time of First Successful Submission: 2025-10-17 19:46:05

Trust the Yancode (Easy)

Time of First Successful Submission: 2025-10-18 13:50:38

Trust the Yancode (Hard)

Time of First Successful Submission: 2025-10-18 14:15:21

Know the Yancode (Easy)

Time of First Successful Submission: 2025-10-18 14:36:50

Know the Yancode (Hard)

Time of First Successful Submission: 2025-10-18 14:54:15

Master the Yancode (Easy)

Time of First Successful Submission: 2025-10-18 19:11:22

Master the Yancode (Hard)

Time of First Successful Submission: 2025-10-18 20:56:33

Transcend the Yancode (Easy)

Time of First Successful Submission: 2025-10-18 21:08:48

Transcend the Yancode (Hard)

Time of First Successful Submission: 2025-10-18 21:16:54

The Yanalyzer (Easy)

Time of First Successful Submission: 2025-10-19 00:38:24

The Yanalyzer (Hard)

Time of First Successful Submission: 2025-10-19 01:05:09

The Yangler (Easy)

Time of First Successful Submission: 2025-10-19 11:42:09

The Yangler (Hard)

Time of First Successful Submission: 2025-10-19 12:26:34

Yancraft (Easy)

Time of First Successful Submission: 2025-10-19 21:28:55

Yancraft (Hard)

Time of First Successful Submission: 2025-10-19 21:42:21

Yansanity (Easy)

Time of First Successful Submission: 2025-10-21 23:02:46

Yansanity (Hard)

Time of First Successful Submission: 2025-10-23 20:28:53

When the Cow Says Moo

Time of First Successful Submission: 2025-10-24 20:55:01

Predictable Migration

Time of First Successful Submission: 2025-10-25 01:33:08

Hashing Heifers

Time of First Successful Submission: 2025-10-25 01:59:46

Salty Stampede

Time of First Successful Submission: 2025-10-25 14:44:09

Loose Link (Easy)

Time of First Successful Submission: 2025-10-25 21:12:36

Loose Link (Hard)

Time of First Successful Submission: 2025-10-25 20:46:04

Call Chain (Easy)

Time of First Successful Submission: 2025-10-25 20:52:05

Call Chain (Hard)

Time of First Successful Submission: 2025-10-25 20:55:50

Chain of Command (Easy)

Time of First Successful Submission: 2025-10-25 21:05:09

Chain of Command (Hard)

Time of First Successful Submission: 2025-10-25 21:10:41

Stop, Pop, and ROP (Easy)

Time of First Successful Submission: 2025-10-26 00:40:13

Stop, Pop, and ROP (Hard)

Time of First Successful Submission: 2025-10-26 01:12:07

Stop, Pop and ROP II (Easy)

Time of First Successful Submission: 2025-10-26 02:13:35

Stop, Pop, and ROP II (Hard)

Time of First Successful Submission: 2025-10-26 02:27:08

Indirect Invocation (Easy)

Time of First Successful Submission: 2025-10-26 03:17:50

Indirect Invocation (Hard)

Time of First Successful Submission: 2025-10-26 03:23:37

Leaky Libc (Easy)

Time of First Successful Submission: 2025-10-26 10:36:25

Leaky Libc (Hard)

Time of First Successful Submission: 2025-10-26 10:42:56

Putsception (Easy)

Time of First Successful Submission: 2025-10-26 11:14:01

Putsception (Hard)

Time of First Successful Submission: 2025-10-26 11:22:34

Pivotal Prelude (Easy)

Time of First Successful Submission: 2025-10-26 21:45:32

Pivotal Prelude (Hard)

Time of First Successful Submission: 2025-10-26 22:05:57

Pivotal Pointer (Easy)

Time of First Successful Submission: 2025-10-27 22:16:51

Pivotal Pointer (Hard)

Time of First Successful Submission: 2025-10-28 20:57:14

Pivotal Payload (Easy)

Time of First Successful Submission: 2025-10-28 21:08:12

Pivotal Payload (Hard)

Time of First Successful Submission: 2025-10-28 21:14:22

Pivotal Pursuit (Easy)

Time of First Successful Submission: 2025-10-28 22:58:45

Pivotal Pursuit (Hard)

Time of First Successful Submission: 2025-10-29 18:34:31

Guarded Gadgets (Easy)

Time of First Successful Submission: 2025-10-29 22:12:41

Guarded Gadgets (Hard)

Time of First Successful Submission: 2025-10-29 22:29:25

ROP Roulette (Easy)

Time of First Successful Submission: 2025-10-30 22:04:15

ROP Roulette (Hard)

Time of First Successful Submission: 2025-10-30 22:48:09

Libc Lottery (Easy)

Time of First Successful Submission: 2025-11-01 00:28:24

Libc Lottery (Hard)

Time of First Successful Submission: 2025-11-01 00:36:27

Freebie (Easy)

Time of First Successful Submission: 2025-11-01 12:17:44

Freebie (Hard)

Time of First Successful Submission: 2025-11-01 12:36:05

Freebin Feint (Easy)

Time of First Successful Submission: 2025-11-01 12:44:35

Freebin Feint (Hard)

Time of First Successful Submission: 2025-11-01 12:48:31

Free Flag Fumble (Easy)

Time of First Successful Submission: 2025-11-01 12:58:33

Free Flag Fumble (Hard)

Time of First Successful Submission: 2025-11-01 13:14:21

Fickle Free (Easy)

Time of First Successful Submission: 2025-11-01 19:26:09

Fickle Free (Hard)

Time of First Successful Submission: 2025-11-01 20:00:24

Malloc Mirage (Easy)

Time of First Successful Submission: 2025-11-01 20:25:01

Malloc Mirage (Hard)

Time of First Successful Submission: 2025-11-01 20:30:27

Seeking Secrets (Easy)

Time of First Successful Submission: 2025-11-01 21:17:27

Seeking Secrets (Hard)

Time of First Successful Submission: 2025-11-01 21:25:31

Seeking Substantial Secrets (Easy)

Time of First Successful Submission: 2025-11-02 10:22:37

Seeking Substantial Secrets (Hard)

Time of First Successful Submission: 2025-11-02 12:30:47

Seeking Spanless Secrets (Easy)

Time of First Successful Submission: 2025-11-02 13:19:36

Seeking Spanless Secrets (Hard)

Time of First Successful Submission: 2025-11-02 13:26:28

Seeking Smuggled Secrets (Easy)

Time of First Successful Submission: 2025-11-03 01:01:18

Seeking Smuggled Secrets (Hard)

Time of First Successful Submission: 2025-11-03 01:17:56

Sus Sequence (Easy)

Time of First Successful Submission: 2025-11-03 21:11:00

Sus Sequence (Hard)

Time of First Successful Submission: 2025-11-03 21:17:15

Echo Emanations (Easy)

Time of First Successful Submission: 2025-11-04 00:41:45

Echo Emanations (Hard)

Time of First Successful Submission: 2025-11-04 00:49:11

Stack Spoofing (Easy)

Time of First Successful Submission: 2025-11-04 19:28:28

Stack Spoofing (Hard)

Time of First Successful Submission: 2025-11-04 19:32:27

Stack Summoning (Easy)

Time of First Successful Submission: 2025-11-04 20:08:51

Stack Summoning (Hard)

Time of First Successful Submission: 2025-11-04 20:35:12

Enterprising Echo (Easy)

Time of First Successful Submission: 2025-11-04 23:08:54

Enterprising Echo (Hard)

Time of First Successful Submission: 2025-11-05 20:26:35

Ephemeral Echo (Easy)

Time of First Successful Submission: 2025-11-05 22:34:00

Ephemeral Echo (Hard)

Time of First Successful Submission: 2025-11-05 22:40:25

Seeking Safe Secrets (Easy)

Time of First Successful Submission: 2025-11-08 01:21:33

Seeking Safe Secrets (Hard)

Time of First Successful Submission: 2025-11-08 01:39:07

Sus Sequence Safety (Easy)

Time of First Successful Submission: 2025-11-08 12:36:39

Sus Sequence Safety (Hard)

Time of First Successful Submission: 2025-11-08 14:52:08

Safely Stack Summoning (Easy)

Time of First Successful Submission: 2025-11-08 18:09:38

Safely Stack Summoning (Hard)

Time of First Successful Submission: 2025-11-08 20:06:14

Overlapping Odyssey (Easy)

Time of First Successful Submission: 2025-11-08 21:26:22

Overlapping Odyssey (Hard)

Time of First Successful Submission: 2025-11-08 21:33:28

Tcache Terror (Easy)

Time of First Successful Submission: 2025-11-09 23:13:19

Tcache Terror (Hard)

Time of First Successful Submission: 2025-11-09 23:16:26

Containment Composition (Easy)

Time of First Successful Submission: 2025-11-10 10:48:59

Containment Composition (Hard)

Time of First Successful Submission: 2025-11-10 12:53:17

Constant Corruption (Easy)

Time of First Successful Submission: 2025-11-10 18:56:58

Constant Corruption (Hard)

Time of First Successful Submission: 2025-11-10 19:39:59

Return to YanLand (Easy)

Time of First Successful Submission: 2025-11-11 12:49:59

Return to YanLand (Hard)

Time of First Successful Submission: 2025-11-11 13:41:24

Escape from YanLand (Easy)

Time of First Successful Submission: 2025-11-11 16:21:17

Escape from YanLand (Hard)

Time of First Successful Submission: 2025-11-11 16:50:03

The YanFilter (Easy)

Time of First Successful Submission: 2025-11-12 00:52:47

The YanFilter (Hard)

Time of First Successful Submission: 2025-11-12 01:11:36

The Great YanFilter (Easy)

Time of First Successful Submission: 2025-11-12 22:54:34

The Great YanFilter (Hard)

Time of First Successful Submission: 2025-11-13 00:24:51

Yan85 Reborn (Easy)

Time of First Successful Submission: 2025-11-14 22:10:04

Yan85 Reborn (Hard)

Time of First Successful Submission: 2025-11-14 22:27:22

System Security

95 / 95 8 / 3232

chroot-escape-basic

Time of First Successful Submission: 2025-11-15 13:18:25

chroot-shellcode

Time of First Successful Submission: 2025-11-15 14:16:29

chroot-proper

Time of First Successful Submission: 2025-11-15 14:43:05

seccomp-basic

Time of First Successful Submission: 2025-11-15 19:58:34

seccomp-linkat

Time of First Successful Submission: 2025-11-15 20:52:56

seccomp-fchdir

Time of First Successful Submission: 2025-11-15 21:03:07

seccomp-rechroot

Time of First Successful Submission: 2025-11-15 23:27:54

seccomp-only

Time of First Successful Submission: 2025-11-16 00:11:23

seccomp-arch32

Time of First Successful Submission: 2025-11-16 00:47:51

seccomp-minimal

Time of First Successful Submission: 2025-11-16 12:54:56

seccomp-timebased

Time of First Successful Submission: 2025-11-16 23:34:50

seccomp-readonly

Time of First Successful Submission: 2025-11-16 23:46:23

process-isolation

Time of First Successful Submission: 2025-11-17 21:57:55

mount-namespace

Time of First Successful Submission: 2025-11-17 22:53:26

mount-cleanup

Time of First Successful Submission: 2025-11-17 23:35:04

mount-readonly

Time of First Successful Submission: 2025-11-17 23:53:33

mount-shellcode

Time of First Successful Submission: 2025-11-18 00:35:33

mount-bindmount

Time of First Successful Submission: 2025-11-18 00:56:33

level1.0

Time of First Successful Submission: 2025-11-18 21:44:27

level1.1

Time of First Successful Submission: 2025-11-18 21:45:57

level2.0

Time of First Successful Submission: 2025-11-18 21:50:16

level2.1

Time of First Successful Submission: 2025-11-18 21:51:37

level3.0

Time of First Successful Submission: 2025-11-18 21:55:48

level3.1

Time of First Successful Submission: 2025-11-18 21:57:15

level4.0

Time of First Successful Submission: 2025-11-18 23:42:28

level4.1

Time of First Successful Submission: 2025-11-18 23:50:08

level5.0

Time of First Successful Submission: 2025-11-19 00:10:49

level5.1

Time of First Successful Submission: 2025-11-19 00:42:53

level6.0

Time of First Successful Submission: 2025-11-19 21:07:28

level6.1

Time of First Successful Submission: 2025-11-19 21:12:39

level7.0

Time of First Successful Submission: 2025-11-19 21:44:39

level7.1

Time of First Successful Submission: 2025-11-19 22:19:05

level8.0

Time of First Successful Submission: 2025-11-19 22:31:19

level8.1

Time of First Successful Submission: 2025-11-19 22:37:48

level9.0

Time of First Successful Submission: 2025-11-20 21:29:20

level9.1

Time of First Successful Submission: 2025-11-20 22:26:52

level10.0

Time of First Successful Submission: 2025-11-21 20:12:03

level10.1

Time of First Successful Submission: 2025-11-21 23:41:39

level11.0

Time of First Successful Submission: 2025-11-21 20:31:55

level11.1

Time of First Successful Submission: 2025-11-21 23:53:10

level1.0

Time of First Successful Submission: 2025-11-22 15:40:32

level1.1

Time of First Successful Submission: 2025-11-22 15:48:42

level2.0

Time of First Successful Submission: 2025-11-22 15:54:23

level2.1

Time of First Successful Submission: 2025-11-22 15:57:13

level3.0

Time of First Successful Submission: 2025-11-22 16:04:40

level3.1

Time of First Successful Submission: 2025-11-22 16:41:22

level4.0

Time of First Successful Submission: 2025-11-22 17:04:40

level4.1

Time of First Successful Submission: 2025-11-22 17:06:45

level5.0

Time of First Successful Submission: 2025-11-22 23:32:26

level5.1

Time of First Successful Submission: 2025-11-22 23:39:43

level6.0

Time of First Successful Submission: 2025-11-23 00:17:31

level6.1

Time of First Successful Submission: 2025-11-23 00:22:13

level7.0

Time of First Successful Submission: 2025-11-23 01:30:25

level7.1

Time of First Successful Submission: 2025-11-23 01:31:53

level8.0

Time of First Successful Submission: 2025-11-23 13:15:00

level8.1

Time of First Successful Submission: 2025-11-23 13:19:30

level9.0

Time of First Successful Submission: 2025-11-23 13:52:27

level9.1

Time of First Successful Submission: 2025-11-23 13:54:07

level10.0

Time of First Successful Submission: 2025-11-23 20:22:30

level10.1

Time of First Successful Submission: 2025-11-23 20:24:10

level11.0

Time of First Successful Submission: 2025-11-23 23:34:12

level11.1

Time of First Successful Submission: 2025-11-23 23:36:14

level12.0

Time of First Successful Submission: 2025-11-30 04:25:11

level12.1

Time of First Successful Submission: 2025-11-30 04:28:35

Baby Spectre 1

Time of First Successful Submission: 2025-11-30 15:50:23

Baby Spectre 2

Time of First Successful Submission: 2025-11-30 16:08:53

Baby Spectre 3

Time of First Successful Submission: 2025-11-30 18:50:03

Baby Spectre 4

Time of First Successful Submission: 2025-11-30 19:09:29

Baby Spectre 5

Time of First Successful Submission: 2025-11-30 21:12:06

Prefetch Peek

Time of First Successful Submission: 2025-11-30 23:59:30

Spooky Spectre 1

Time of First Successful Submission: 2025-12-07 01:23:41

Spooky Spectre 2

Time of First Successful Submission: 2025-12-07 22:01:30

Yan85 Reloaded

Time of First Successful Submission: 2025-12-09 20:19:21

Ghost in the YPU 1

Time of First Successful Submission: 2025-12-15 23:09:25

Ghost in the YPU 2

Time of First Successful Submission: 2025-12-17 22:00:25

Molten Access

Time of First Successful Submission: 2025-12-18 23:01:44

Molten Walk

Time of First Successful Submission: 2025-12-20 00:30:46

level1.0

Time of First Successful Submission: 2025-12-20 16:11:10

level1.1

Time of First Successful Submission: 2025-12-20 16:27:57

level2.0

Time of First Successful Submission: 2025-12-21 02:11:28

level2.1

Time of First Successful Submission: 2025-12-21 02:59:51

level3.0

Time of First Successful Submission: 2025-12-24 00:11:27

level3.1

Time of First Successful Submission: 2025-12-24 01:18:52

level4.0

Time of First Successful Submission: 2025-12-26 02:13:18

level4.1

Time of First Successful Submission: 2025-12-26 02:32:34

level5.0

Time of First Successful Submission: 2025-12-31 21:11:58

level5.1

Time of First Successful Submission: 2025-12-31 23:42:38

level6.0

Time of First Successful Submission: 2026-01-01 00:58:01

level6.1

Time of First Successful Submission: 2026-01-01 01:50:32

level7.0

Time of First Successful Submission: 2026-01-02 16:30:27

level7.1

Time of First Successful Submission: 2026-01-02 18:17:17

level8.0

Time of First Successful Submission: 2026-01-02 20:00:35

level8.1

Time of First Successful Submission: 2026-01-02 20:36:05

Software Exploitation

85 / 90 130 / 1983

Level1.0

Time of First Successful Submission: 2025-05-04 18:46:11

Level1.1

Time of First Successful Submission: 2025-05-04 18:52:05

Level2.0

Time of First Successful Submission: 2025-05-04 19:11:11

Level2.1

Time of First Successful Submission: 2025-05-04 19:14:58

Level3.0

Time of First Successful Submission: 2025-05-04 20:00:02

Level3.1

Time of First Successful Submission: 2025-05-04 20:26:19

Level4.0

Time of First Successful Submission: 2025-05-04 20:42:41

Level4.1

Time of First Successful Submission: 2025-05-04 21:06:34

Level5.0

Time of First Successful Submission: 2025-05-05 20:48:10

Level5.1

Time of First Successful Submission: 2025-05-05 21:34:23

Level6.0

Time of First Successful Submission: 2025-05-05 22:11:14

Level6.1

Time of First Successful Submission: 2025-05-06 20:42:16

Level7.0

Time of First Successful Submission: 2025-05-07 22:07:00

Level7.1

Time of First Successful Submission: 2025-05-07 22:36:48

Level8.0

Time of First Successful Submission: 2025-05-08 22:43:07

Level8.1

Time of First Successful Submission: 2025-05-08 23:09:26

Level9.0

Time of First Successful Submission: 2025-05-09 22:30:13

Level9.1

Time of First Successful Submission: 2025-05-09 23:03:12

Level10.0

Time of First Successful Submission: 2025-05-14 23:53:38

Level10.1

Time of First Successful Submission: 2025-05-15 21:05:00

Level11.0

Time of First Successful Submission: 2025-05-21 21:29:34

Level11.1

Time of First Successful Submission: 2025-05-21 22:25:23

Level12.0

Time of First Successful Submission: 2025-06-18 22:08:09

Level12.1

Time of First Successful Submission: 2025-06-18 22:58:01

level1

Time of First Successful Submission: 2025-06-20 20:11:44

level2

Time of First Successful Submission: 2025-06-20 20:23:02

level3

Time of First Successful Submission: 2025-06-20 20:34:51

level4

Time of First Successful Submission: 2025-06-20 21:36:12

level5

Time of First Successful Submission: 2025-06-21 00:47:41

level6

Time of First Successful Submission: 2025-06-21 00:59:44

level7

Time of First Successful Submission: 2025-06-24 20:48:35

level8

Time of First Successful Submission: 2025-06-24 21:39:53

level9

Time of First Successful Submission: 2025-06-27 23:13:15

level10

Time of First Successful Submission: 2025-06-28 01:05:39

level11

Time of First Successful Submission: 2025-06-29 17:24:47

level12

Time of First Successful Submission: 2025-06-28 17:32:59

level13

Time of First Successful Submission: 2025-06-29 13:49:42

level14

Time of First Successful Submission: 2025-06-29 17:11:44

level15

Time of First Successful Submission: 2025-06-29 18:08:24

level16

Time of First Successful Submission: 2025-06-29 22:53:05

level17

Time of First Successful Submission: 2025-06-29 23:39:08

level18

Time of First Successful Submission: 2025-06-30 20:34:52

level19

Time of First Successful Submission: 2025-06-30 23:12:24

level20

Time of First Successful Submission: 2025-07-01 11:47:54

level21

Time of First Successful Submission: 2025-07-04 00:41:17

level1.0

Time of First Successful Submission: 2026-01-04 21:07:26

level1.1

Time of First Successful Submission: 2026-01-04 21:16:12

level2.0

Time of First Successful Submission: 2026-01-04 22:03:40

level2.1

Time of First Successful Submission: 2026-01-04 22:11:02

level3.0

Time of First Successful Submission: 2026-01-07 23:01:34

level3.1

Time of First Successful Submission: 2026-01-07 23:08:19

level4.0

Time of First Successful Submission: 2026-01-08 22:18:48

level4.1

Time of First Successful Submission: 2026-01-08 22:25:21

level5.0

Time of First Successful Submission: 2026-01-09 23:00:25

level5.1

Time of First Successful Submission: 2026-01-09 23:24:11

level6.0

Time of First Successful Submission: 2026-01-15 00:19:13

level6.1

Time of First Successful Submission: 2026-01-15 22:28:10

level7.0

Time of First Successful Submission: 2026-01-17 00:22:05

level7.1

Time of First Successful Submission: 2026-01-17 00:23:02

level8.0

Time of First Successful Submission: 2026-01-21 00:35:18

level8.1

Time of First Successful Submission: 2026-01-21 00:38:44

level9.0

Time of First Successful Submission: 2026-01-22 00:14:01

level9.1

Time of First Successful Submission: 2026-01-22 00:30:19

level10.0

Time of First Successful Submission: 2026-01-23 00:09:44

level10.1

Time of First Successful Submission: 2026-01-23 00:12:36

level1.0

Time of First Successful Submission: 2026-01-23 21:50:04

level1.1

Time of First Successful Submission: 2026-01-23 21:51:16

level2.0

Time of First Successful Submission: 2026-01-24 00:21:28

level2.1

Time of First Successful Submission: 2026-01-24 00:31:00

level3.0

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

level3.1

Time of First Successful Submission: 2026-01-24 01:32:06

level4.0

Time of First Successful Submission: 2026-01-25 20:40:13

level4.1

Time of First Successful Submission: 2026-01-25 20:41:04

level5.0

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

level5.1

Time of First Successful Submission: 2026-01-26 01:53:55

level6.0

Time of First Successful Submission: 2026-01-27 01:38:54

level6.1

Time of First Successful Submission: 2026-01-27 01:48:15

level7.0

Time of First Successful Submission: 2026-01-30 00:32:46

level7.1

Time of First Successful Submission: 2026-01-30 00:38:47

level8.0

Time of First Successful Submission: 2026-01-31 23:35:21

level8.1

Time of First Successful Submission: 2026-01-31 23:37:26

level9

Time of First Successful Submission: 2026-02-01 01:07:35

Level-1

Time of First Successful Submission: 2026-02-05 20:20:48

Level-2

Time of First Successful Submission: 2026-02-09 02:23:44

Level-3

Time of First Successful Submission: 2026-02-11 21:38:57

Start Here

11 / 12 5160 / 39878

Using the Terminal

Time of First Successful Submission: 2025-10-15 19:20:44

Using the VSCode Workspace

Time of First Successful Submission: 2025-04-25 23:38:47

Using the GUI Desktop

Time of First Successful Submission: 2025-04-25 23:43:17

Pasting into the Desktop

Time of First Successful Submission: 2025-04-25 23:44:40

Restarting Challenges

Time of First Successful Submission: 2025-04-25 23:48:04

Challenge Programs

Time of First Successful Submission: 2025-04-26 00:00:36

The Flag File

Time of First Successful Submission: 2025-04-26 00:02:48

Using Privileged Mode

Time of First Successful Submission: 2025-04-26 00:09:32

Persistent Home Directories - One

Time of First Successful Submission: 2025-04-26 00:12:10

Persistent Home Directories - Two

Time of First Successful Submission: 2025-04-26 00:14:11

Linux Luminarium

128 / 128 335 / 29750

Intro to Commands

Time of First Successful Submission: 2025-04-26 00:17:26

Intro to Arguments

Time of First Successful Submission: 2025-04-26 00:18:47

Command History

Time of First Successful Submission: 2025-07-04 00:43:45

The Root

Time of First Successful Submission: 2025-04-26 00:20:30

Program and absolute paths

Time of First Successful Submission: 2025-04-26 00:22:01

Position thy self

Time of First Successful Submission: 2025-04-26 00:23:39

Position elsewhere

Time of First Successful Submission: 2025-04-26 00:25:52

implicit relative paths, from /

Time of First Successful Submission: 2025-04-26 00:28:15

explicit relative paths, from /

Time of First Successful Submission: 2025-04-26 00:29:57

implicit relative path

Time of First Successful Submission: 2025-04-26 00:31:14

home sweet home

Time of First Successful Submission: 2025-04-26 00:33:19

cat: not the pet, but the command!

Time of First Successful Submission: 2025-04-26 00:55:08

catting absolute paths

Time of First Successful Submission: 2025-04-26 00:55:58

more catting practice

Time of First Successful Submission: 2025-04-26 00:57:13

grepping for a needle in a haystack

Time of First Successful Submission: 2025-04-26 00:58:43

comparing files

Time of First Successful Submission: 2025-10-15 19:23:01

listing files

Time of First Successful Submission: 2025-04-26 00:59:52

touching files

Time of First Successful Submission: 2025-04-26 01:01:06

removing files

Time of First Successful Submission: 2025-04-26 01:02:53

moving files

Time of First Successful Submission: 2025-07-07 22:27:18

copying files

Time of First Successful Submission: 2025-11-14 22:30:35

hidden files

Time of First Successful Submission: 2025-04-26 01:04:19

An Epic Filesystem Quest

Time of First Successful Submission: 2025-04-26 01:12:59

making directories

Time of First Successful Submission: 2025-04-26 01:14:14

finding files

Time of First Successful Submission: 2025-04-26 01:17:53

linking files

Time of First Successful Submission: 2025-04-26 01:19:40

Learning From Documentation

Time of First Successful Submission: 2025-04-26 13:14:02

Learning Complex Usage

Time of First Successful Submission: 2025-04-26 13:16:33

Reading Manuals

Time of First Successful Submission: 2025-04-26 13:20:48

Searching Manuals

Time of First Successful Submission: 2025-04-26 13:22:30

Searching For Manuals

Time of First Successful Submission: 2025-04-26 13:24:41

Helpful Programs

Time of First Successful Submission: 2025-04-26 13:26:47

Help for Builtins

Time of First Successful Submission: 2025-04-26 14:29:49

Matching with *

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Matching with ?

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Matching with []

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Matching paths with []

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Multiple globs

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Mixing globs

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Exclusionary globbing

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Tab completion

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Multiple options for tab completion

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Tab completion on commands

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Redirecting output

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Redirecting more output

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Appending output

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Redirecting errors

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Redirecting input

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Grepping stored results

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Grepping live output

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Grepping errors

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Filtering with grep -v

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Filtering with sed

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Duplicating piped data with tee

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Process substitution for input

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Writing to multiple programs

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Split-piping stderr and stdout

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Named pipes

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Printing Variables

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Setting Variables

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Multi-word Variables

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Exporting Variables

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Printing Exported Variables

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Storing Command Output

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Reading Input

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Reading Files

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Translating characters

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Deleting characters

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Deleting newlines

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Extracting the first lines with head

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Extracting specific sections of text

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Sorting data

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Listing Processes

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Killing Processes

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Interrupting Processes

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Killing Misbehaving Processes

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Suspending Processes

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Resuming Processes

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Backgrounding Processes

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Foregrounding Processes

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Starting Backgrounded Processes

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Process Exit Codes

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Becoming root with su

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Other users with su

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Cracking passwords

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Using sudo

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Changing File Ownership

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Groups and Files

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Fun With Groups Names

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Changing Permissions

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Executable Files

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Permission Tweaking Practice

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Permissions Setting Practice

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The SUID Bit

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Chaining with Semicolons

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Building on Success

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Handling Failure

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Your First Shell Script

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Redirecting Script Output

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Executable Shell Scripts

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Understanding Shebangs

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Scripting with Arguments

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Scripting with Conditionals

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Scripting with Default Cases

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Scripting with Multiple Conditions

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Reading Shell Scripts

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Launching Screen

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Detaching and Attaching

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Finding Sessions

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Switching Windows

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Detaching and Attaching (tmux)

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Switching Windows (tmux)

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The PATH Variable

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Setting PATH

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Finding Commands

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Adding Commands

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Hijacking Commands

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Bashrc Backdoor

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Sniffing Input

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Overshared Directories

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Tricky Linking

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Sniffing Process Arguments

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Snooping on Configurations

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The Fork Bomb

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Disk-Space Doomsday

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rm -rf /

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Life after rm -rf /

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Finding meaning after rm -rf /

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Computing 101

69 / 69 369 / 19973

Your First Register

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Your First Syscall

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Exit Codes

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Building Executables

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Moving Between Registers

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Tracing Syscalls

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Starting GDB

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Starting Programs in GDB

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Loading From Memory

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More Loading Practice

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Dereferencing Pointers

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Dereferencing Yourself

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Dereferencing with Offsets

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Stored Addresses

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Double Dereference

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Triple Dereference

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Writing Output

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Chaining Syscalls

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Writing Strings

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Reading Data

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set-register

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set-multiple-registers

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add-to-register

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linear-equation-registers

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integer-division

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modulo-operation

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set-upper-byte

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efficient-modulo

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byte-extraction

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bitwise-and

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check-even

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memory-read

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memory-write

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memory-increment

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byte-access

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memory-size-access

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little-endian-write

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memory-sum

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stack-subtraction

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swap-stack-values

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average-stack-values

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absolute-jump

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relative-jump

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jump-trampoline

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conditional-jump

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indirect-jump

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average-loop

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count-non-zero

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string-lower

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most-common-byte

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Debugging Programs

Time of First Successful Submission: 2025-05-01 19:32:52

Inspecting Registers

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Examining Memory

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Setting Breakpoints

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GDB Scripting

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Modifying Data

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Modifying Execution

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Broken Functions

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Exit

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Socket

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Bind

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Listen

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Accept

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Static Response

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Dynamic Response

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Iterative GET Server

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Concurrent GET Server

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Concurrent POST Server

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Web Server

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Playing With Programs

116 / 116 247 / 22706

What's the password?

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... and again!

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Newline Troubles

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Reasoning about files

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Specifying Filenames

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Binary and Hex Encoding

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More Hex

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Decoding Hex

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Decoding Practice

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Encoding Practice

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Hex-encoding ASCII

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Nested Encoding

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Hex-encoding UTF-8

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UTF Mixups

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Modifying Encoded Data

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Decoding Base64

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Encoding Base64

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Dealing with Obfuscation

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Dealing with Obfuscation 2

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Your First HTTP Request

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Reading Flask

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Commented Data

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HTTP Metadata

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HTTP (netcat)

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HTTP Paths (netcat)

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HTTP (curl)

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HTTP (python)

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HTTP Host Header (python)

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HTTP Host Header (curl)

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HTTP Host Header (netcat)

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URL Encoding (netcat)

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HTTP GET Parameters

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Multiple HTTP Parameters (netcat)

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Multiple HTTP Parameters (curl)

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HTTP Forms

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HTTP Forms (curl)

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HTTP Forms (netcat)

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HTTP Forms (python)

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HTTP Forms Without Forms

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Multiple Form Fields (curl)

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Multiple Form Fields (netcat)

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HTTP Redirects (netcat)

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HTTP Redirects (curl)

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HTTP Redirects (python)

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HTTP Cookies (curl)

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HTTP Cookies (netcat)

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HTTP Cookies (python)

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Server State (python)

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Listening Web

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Speaking Redirects

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JavaScript Redirects

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Including JavaScript

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HTTP (javascript)

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HTTP Get Parameters (javascript)

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HTTP Forms (javascript)

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cat

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more

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less

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tail

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head

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sort

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vim

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emacs

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nano

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rev

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od

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hd

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xxd

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base32

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base64

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split

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gzip

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bzip2

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zip

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tar

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ar

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cpio

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genisoimage

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env

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find

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make

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nice

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timeout

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stdbuf

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setarch

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watch

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socat

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whiptail

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awk

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sed

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ed

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chown

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chmod

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cp

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mv

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perl

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python

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ruby

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bash

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date

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dmesg

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wc

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gcc

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as

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wget

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ssh-keygen

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SQL Queries

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Filtering SQL

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Choosing Columns

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Exclusionary Filtering

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Filtering Strings

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Filtering on Expressions

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SELECTing Expressions

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Composite Conditions

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Reaching Your LIMITs

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Querying Metadata

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GCA CTF

11 / 104 5279 / 40095

Using the Terminal

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Using the VSCode Workspace

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Using the GUI Desktop

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Pasting into the Desktop

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Restarting Challenges

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Getting Help

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Challenge Programs

Time of First Successful Submission: 2025-04-26 00:00:36

The Flag File

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Using Privileged Mode

Time of First Successful Submission: 2025-04-26 00:09:32

Persistent Home Directories - One

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Persistent Home Directories - Two

Time of First Successful Submission: 2025-04-26 00:14:11