JC+

Intro to Cybersecurity

183 / 183 156 / 19797

Path Traversal 1

Time of First Successful Submission: 2025-09-25 16:31:27

Path Traversal 2

Time of First Successful Submission: 2025-09-25 17:26:00

CMDi 1

Time of First Successful Submission: 2025-09-25 17:41:20

CMDi 2

Time of First Successful Submission: 2025-09-25 17:43:03

CMDi 3

Time of First Successful Submission: 2025-09-26 16:08:12

CMDi 4

Time of First Successful Submission: 2025-09-26 16:11:59

CMDi 5

Time of First Successful Submission: 2025-09-26 16:15:11

CMDi 6

Time of First Successful Submission: 2025-09-26 19:53:58

Authentication Bypass 1

Time of First Successful Submission: 2025-09-27 13:39:11

Authentication Bypass 2

Time of First Successful Submission: 2025-09-27 13:40:43

SQLi 1

Time of First Successful Submission: 2025-09-27 13:46:21

SQLi 2

Time of First Successful Submission: 2025-09-27 13:48:18

SQLi 3

Time of First Successful Submission: 2025-09-27 13:52:13

SQLi 4

Time of First Successful Submission: 2025-09-27 13:58:38

SQLi 5

Time of First Successful Submission: 2025-09-27 16:05:16

XSS 1

Time of First Successful Submission: 2025-09-27 17:21:05

XSS 2

Time of First Successful Submission: 2025-09-27 17:23:21

XSS 3

Time of First Successful Submission: 2025-09-27 17:28:26

XSS 4

Time of First Successful Submission: 2025-09-27 17:30:34

XSS 5

Time of First Successful Submission: 2025-09-27 17:38:50

XSS 6

Time of First Successful Submission: 2025-09-27 17:41:24

XSS 7

Time of First Successful Submission: 2025-09-27 17:54:40

CSRF 1

Time of First Successful Submission: 2025-09-27 18:51:55

CSRF 2

Time of First Successful Submission: 2025-09-27 18:57:05

CSRF 3

Time of First Successful Submission: 2025-09-27 19:03:17

CSRF 4

Time of First Successful Submission: 2025-09-27 19:11:16

CSRF 5

Time of First Successful Submission: 2025-09-27 19:28:44

Connect

Time of First Successful Submission: 2025-09-29 09:12:59

Send

Time of First Successful Submission: 2025-09-29 09:13:40

Shutdown

Time of First Successful Submission: 2025-09-29 09:15:29

Listen

Time of First Successful Submission: 2025-09-29 09:16:01

Scan 1

Time of First Successful Submission: 2025-09-29 09:31:52

Scan 2

Time of First Successful Submission: 2025-09-29 10:07:32

Monitor 1

Time of First Successful Submission: 2025-10-02 13:12:59

Monitor 2

Time of First Successful Submission: 2025-10-03 05:19:33

Sniffing Cookies

Time of First Successful Submission: 2025-10-03 05:23:23

Network Configuration

Time of First Successful Submission: 2025-10-03 05:45:55

Firewall 1

Time of First Successful Submission: 2025-10-03 06:40:27

Firewall 2

Time of First Successful Submission: 2025-10-03 06:41:33

Firewall 3

Time of First Successful Submission: 2025-10-03 06:44:34

Denial of Service 1

Time of First Successful Submission: 2025-10-03 06:47:29

Denial of Service 2

Time of First Successful Submission: 2025-10-03 08:42:25

Denial of Service 3

Time of First Successful Submission: 2025-10-06 16:21:48

Ethernet

Time of First Successful Submission: 2025-10-06 16:37:30

IP

Time of First Successful Submission: 2025-10-07 05:04:36

TCP

Time of First Successful Submission: 2025-10-07 05:08:24

TCP Handshake

Time of First Successful Submission: 2025-10-07 05:20:45

UDP

Time of First Successful Submission: 2025-10-07 10:54:33

UDP 2

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

UDP Spoofing 1

Time of First Successful Submission: 2025-10-07 11:02:14

UDP Spoofing 2

Time of First Successful Submission: 2025-10-07 11:08:45

UDP Spoofing 3

Time of First Successful Submission: 2025-10-07 13:24:10

UDP Spoofing 4

Time of First Successful Submission: 2025-10-07 13:38:03

ARP

Time of First Successful Submission: 2025-10-07 13:45:08

Intercept

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

Man-in-the-Middle

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

XOR

Time of First Successful Submission: 2025-09-28 16:45:52

XORing Hex

Time of First Successful Submission: 2025-09-28 16:51:42

XORing ASCII

Time of First Successful Submission: 2025-09-28 16:54:28

XORing ASCII Strings

Time of First Successful Submission: 2025-09-28 16:59:10

One-time Pad

Time of First Successful Submission: 2025-09-28 17:00:50

One-time Pad Tampering

Time of First Successful Submission: 2025-09-28 17:03:09

Many-time Pad

Time of First Successful Submission: 2025-09-28 17:04:30

AES

Time of First Successful Submission: 2025-09-28 17:06:36

AES-ECB-CPA

Time of First Successful Submission: 2026-02-02 10:24:22

AES-ECB-CPA-HTTP

Time of First Successful Submission: 2026-02-02 10:46:01

AES-ECB-CPA-HTTP (base64)

Time of First Successful Submission: 2026-02-02 10:49:49

AES-ECB-CPA-Suffix

Time of First Successful Submission: 2026-02-02 10:58:33

AES-ECB-CPA-Prefix

Time of First Successful Submission: 2026-02-02 11:49:34

AES-ECB-CPA-Prefix-2

Time of First Successful Submission: 2026-02-02 12:37:33

AES-ECB-CPA-Prefix-Miniboss

Time of First Successful Submission: 2026-02-06 07:17:24

AES-ECB-CPA-Prefix-Boss

Time of First Successful Submission: 2026-02-10 12:53:30

AES-CBC

Time of First Successful Submission: 2026-02-10 13:07:50

AES-CBC Tampering

Time of First Successful Submission: 2026-02-10 13:17:48

AES-CBC Resizing

Time of First Successful Submission: 2026-02-10 13:22:47

AES-CBC-POA-Partial-Block

Time of First Successful Submission: 2026-02-10 14:10:53

AES-CBC-POA-Full-Block

Time of First Successful Submission: 2026-02-11 07:14:44

AES-CBC-POA-Multi-Block

Time of First Successful Submission: 2026-02-12 06:17:06

AES-CBC-POA-Encrypt

Time of First Successful Submission: 2026-02-13 07:12:15

AES-CBC-POA-Encrypt-2

Time of First Successful Submission: 2026-02-13 07:16:49

DHKE

Time of First Successful Submission: 2026-02-13 11:44:22

DHKE-to-AES

Time of First Successful Submission: 2026-02-13 11:49:35

RSA 1

Time of First Successful Submission: 2026-02-13 11:53:36

RSA 2

Time of First Successful Submission: 2026-02-13 11:56:28

RSA 3

Time of First Successful Submission: 2026-02-13 12:10:56

RSA 4

Time of First Successful Submission: 2026-02-13 12:19:44

RSA Signatures

Time of First Successful Submission: 2026-02-13 14:26:26

SHA 1

Time of First Successful Submission: 2026-02-13 14:48:24

SHA 2

Time of First Successful Submission: 2026-02-13 14:53:45

TLS 1

Time of First Successful Submission: 2026-02-18 13:25:15

TLS 2

Time of First Successful Submission: 2026-02-18 14:12:17

level1

Time of First Successful Submission: 2025-10-16 11:54:58

level2

Time of First Successful Submission: 2025-10-16 11:55:26

level3

Time of First Successful Submission: 2025-10-16 11:56:05

level4

Time of First Successful Submission: 2025-10-16 11:56:53

level5

Time of First Successful Submission: 2025-10-16 12:00:13

level6

Time of First Successful Submission: 2025-10-16 12:04:36

level7

Time of First Successful Submission: 2025-10-16 12:06:20

level8

Time of First Successful Submission: 2025-10-16 12:07:37

level9

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

level10

Time of First Successful Submission: 2025-10-16 12:13:49

level11

Time of First Successful Submission: 2025-10-16 12:16:28

level12

Time of First Successful Submission: 2025-10-16 12:18:15

level13

Time of First Successful Submission: 2025-10-16 12:19:41

level14

Time of First Successful Submission: 2025-10-16 12:25:23

level15

Time of First Successful Submission: 2025-10-16 12:26:05

level16

Time of First Successful Submission: 2025-10-16 12:28:08

level17

Time of First Successful Submission: 2025-10-17 05:46:24

level18

Time of First Successful Submission: 2025-10-17 05:46:47

level19

Time of First Successful Submission: 2025-10-17 05:52:55

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2025-10-17 09:12:48

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2025-10-17 09:17:27

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2025-10-17 09:23:23

Reading Endianness (Python)

Time of First Successful Submission: 2025-10-17 09:28:05

Reading Endianness (C)

Time of First Successful Submission: 2026-01-11 10:05:46

Reading Endianness (x86)

Time of First Successful Submission: 2026-01-27 13:09:00

Version Information (Python)

Time of First Successful Submission: 2025-11-03 12:04:06

Version Information (C)

Time of First Successful Submission: 2026-01-11 11:24:21

Version Information (x86)

Time of First Successful Submission: 2026-01-27 13:11:28

Metadata and Data (Python)

Time of First Successful Submission: 2025-11-03 12:10:51

Metadata and Data (C)

Time of First Successful Submission: 2026-01-11 11:35:21

Metadata and Data (x86)

Time of First Successful Submission: 2026-01-27 13:16:32

Input Restrictions (Python)

Time of First Successful Submission: 2025-11-03 12:14:35

Input Restrictions (C)

Time of First Successful Submission: 2026-01-11 11:48:17

Input Restrictions (x86)

Time of First Successful Submission: 2026-01-27 13:19:47

Behold the cIMG! (Python)

Time of First Successful Submission: 2025-11-03 12:17:26

Behold the cIMG! (C)

Time of First Successful Submission: 2026-01-11 12:11:46

Behold the cIMG! (x86)

Time of First Successful Submission: 2026-01-27 13:23:53

A Basic cIMG (Python)

Time of First Successful Submission: 2025-11-03 12:21:56

A Basic cIMG (C)

Time of First Successful Submission: 2026-01-11 12:42:20

A Basic cIMG (x86)

Time of First Successful Submission: 2026-01-27 13:31:07

Internal State Mini (C)

Time of First Successful Submission: 2026-01-14 19:45:38

Internal State Mini (x86)

Time of First Successful Submission: 2026-01-27 13:51:28

Internal State (C)

Time of First Successful Submission: 2026-01-17 19:42:52

Internal State (x86)

Time of First Successful Submission: 2026-01-27 13:54:09

File Formats: Directives (C)

Time of First Successful Submission: 2026-01-18 13:35:38

File Formats: Directives (x86)

Time of First Successful Submission: 2026-01-27 14:04:10

The Patch Directive

Time of First Successful Submission: 2026-01-18 14:17:58

Optimizing for Space

Time of First Successful Submission: 2026-01-18 14:57:00

Tweaking Images

Time of First Successful Submission: 2026-01-19 17:16:27

Storage and Retrieval

Time of First Successful Submission: 2026-01-20 17:34:04

Extracting Knowledge

Time of First Successful Submission: 2026-01-21 17:07:31

Advanced Sprites

Time of First Successful Submission: 2026-01-22 19:07:08

Accessing Resources

Time of First Successful Submission: 2026-01-26 18:33:57

Unsafe Animations

Time of First Successful Submission: 2026-01-27 17:49:24

Animations

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

Interoperability: Patching Data

Time of First Successful Submission: 2026-01-28 16:54:59

Patching Code

Time of First Successful Submission: 2026-01-29 17:18:40

Patching Control Flow

Time of First Successful Submission: 2026-01-30 13:19:57

Your First Overflow (easy)

Time of First Successful Submission: 2026-01-20 13:45:28

Your First Overflow (hard)

Time of First Successful Submission: 2026-01-20 13:51:49

Precision (easy)

Time of First Successful Submission: 2026-01-20 13:57:49

Precision (hard)

Time of First Successful Submission: 2026-01-20 13:59:12

Variable Control (easy)

Time of First Successful Submission: 2026-01-21 12:27:26

Variable Control (hard)

Time of First Successful Submission: 2026-01-21 12:32:47

Control Hijack (easy)

Time of First Successful Submission: 2026-01-21 12:40:51

Control Hijack (hard)

Time of First Successful Submission: 2026-01-21 12:43:46

Tricky Control Hijack (easy)

Time of First Successful Submission: 2026-01-21 13:52:37

Tricky Control Hijack (hard)

Time of First Successful Submission: 2026-01-21 13:55:15

PIEs (easy)

Time of First Successful Submission: 2026-01-22 12:30:18

PIEs (hard)

Time of First Successful Submission: 2026-01-22 12:38:42

String Lengths (easy)

Time of First Successful Submission: 2026-01-22 13:07:16

String Lengths (hard)

Time of First Successful Submission: 2026-01-22 13:29:53

Basic Shellcode

Time of First Successful Submission: 2026-01-28 10:22:35

NOP Sleds

Time of First Successful Submission: 2026-01-28 10:36:45

NULL-Free Shellcode

Time of First Successful Submission: 2026-01-28 10:46:05

Hijack to (Mapped) Shellcode (easy)

Time of First Successful Submission: 2026-01-29 06:57:25

Hijack to (Mapped) Shellcode (hard)

Time of First Successful Submission: 2026-01-29 07:10:49

Hijack to Shellcode (easy)

Time of First Successful Submission: 2026-01-30 06:28:20

Hijack to Shellcode (hard)

Time of First Successful Submission: 2026-01-30 13:12:52

ECB-to-Win (easy)

Time of First Successful Submission: 2026-01-30 13:56:21

ECB-to-Win (hard)

Time of First Successful Submission: 2026-01-30 14:33:05

ECB-to-Shellcode (easy)

Time of First Successful Submission: 2026-01-30 17:41:54

ECB-to-Shellcode (hard)

Time of First Successful Submission: 2026-02-06 16:11:05

CIMG Screenshots

Time of First Successful Submission: 2026-02-09 17:53:21

CIMG Screenshots 2

Time of First Successful Submission: 2026-02-09 18:35:46

Wily Webserver

Time of First Successful Submission: 2026-02-10 17:49:04

The Watering Hole

Time of First Successful Submission: 2026-02-18 17:07:56

Secure Chat 1

Time of First Successful Submission: 2026-02-13 20:37:17

Secure Chat 2

Time of First Successful Submission: 2026-02-16 14:24:00

Secure Chat 3

Time of First Successful Submission: 2026-02-17 13:49:02

Secure Chat 4

Time of First Successful Submission: 2026-02-17 14:45:05

Secure Chat 5

Time of First Successful Submission: 2026-02-18 13:00:48

Program Security

89 / 162 801 / 9456

ello ackers!

Time of First Successful Submission: 2026-02-21 16:30:46

Syscall Smuggler

Time of First Successful Submission: 2026-02-21 16:53:10

Syscall Shenanigans

Time of First Successful Submission: 2026-02-21 16:59:21

Byte Budget

Time of First Successful Submission: 2026-02-21 18:41:15

ClobberCode

Time of First Successful Submission: 2026-02-21 19:09:12

Diverse Delivery

Time of First Successful Submission: 2026-02-21 19:18:33

Pocket Payload

Time of First Successful Submission: 2026-02-21 19:44:05

Micro Menace

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

Login Leakage (Easy)

Time of First Successful Submission: 2026-02-23 19:33:31

Login Leakage (Hard)

Time of First Successful Submission: 2026-02-23 19:36:09

Bounds Breaker (Easy)

Time of First Successful Submission: 2026-02-24 10:42:56

Bounds Breaker (Hard)

Time of First Successful Submission: 2026-02-24 10:45:59

Casting Catastrophe (Easy)

Time of First Successful Submission: 2026-02-25 09:29:25

Casting Catastrophe (Hard)

Time of First Successful Submission: 2026-02-25 09:31:48

Pointer Problems (Easy)

Time of First Successful Submission: 2026-02-25 17:24:18

Pointer Problems (Hard)

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

Anomalous Array (Easy)

Time of First Successful Submission: 2026-02-25 17:59:35

Anomalous Array (Hard)

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

Now you got it (Easy)

Time of First Successful Submission: 2026-02-25 18:34:51

Now you got it (Hard)

Time of First Successful Submission: 2026-02-25 18:56:58

Loop Lunacy (Easy)

Time of First Successful Submission: 2026-02-28 09:28:40

Loop Lunacy (Hard)

Time of First Successful Submission: 2026-02-28 09:17:13

Nosy Neighbor (Easy)

Time of First Successful Submission: 2026-02-28 09:34:29

Nosy Neighbor (Hard)

Time of First Successful Submission: 2026-02-28 09:37:23

Recursive Ruin (Easy)

Time of First Successful Submission: 2026-02-28 10:33:15

Recursive Ruin (Hard)

Time of First Successful Submission: 2026-02-28 10:46:06

Lingering Leftover (Easy)

Time of First Successful Submission: 2026-02-28 10:56:00

Lingering Leftover (Hard)

Time of First Successful Submission: 2026-02-28 11:00:51

Latent Leak (Easy)

Time of First Successful Submission: 2026-02-28 12:55:49

Latent Leak (Hard)

Time of First Successful Submission: 2026-02-28 13:07:42

Fork Foolery (Easy)

Time of First Successful Submission: 2026-02-28 14:16:40

Fork Foolery (Hard)

Time of First Successful Submission: 2026-02-28 14:08:31

Canary Conundrum (Easy)

Time of First Successful Submission: 2026-02-28 14:30:41

Canary Conundrum (Hard)

Time of First Successful Submission: 2026-02-28 15:42:48

A Crafty Clobber (Easy)

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

A Crafty Clobber (Hard)

Time of First Successful Submission: 2026-02-28 16:12:40

Can It Fizz?

Time of First Successful Submission: 2026-03-01 14:30:49

Does It Buzz?

Time of First Successful Submission: 2026-03-02 17:37:06

Make It FizzBuzz

Time of First Successful Submission: 2026-03-05 06:49:30

Terrible Token (Easy)

Time of First Successful Submission: 2026-03-05 12:59:12

Terrible Token (Hard)

Time of First Successful Submission: 2026-03-05 13:00:26

Tangled Ticket (Easy)

Time of First Successful Submission: 2026-03-05 13:03:24

Tangled Ticket (Hard)

Time of First Successful Submission: 2026-03-05 13:05:07

Bit Bender

Time of First Successful Submission: 2026-03-05 14:03:59

Substitution Sorcery

Time of First Successful Submission: 2026-03-05 14:10:55

Meager Mangler (Easy)

Time of First Successful Submission: 2026-03-05 14:16:17

Meager Mangler (Hard)

Time of First Successful Submission: 2026-03-05 14:28:24

Monstrous Mangler (Easy)

Time of First Successful Submission: 2026-03-06 06:09:52

Monstrous Mangler (Hard)

Time of First Successful Submission: 2026-03-06 06:25:35

Patched Up (Easy)

Time of First Successful Submission: 2026-03-06 17:54:43

Patched Up (Hard)

Time of First Successful Submission: 2026-03-06 17:56:05

Puzzle Patch (Easy)

Time of First Successful Submission: 2026-03-06 17:57:15

Puzzle Patch (Hard)

Time of First Successful Submission: 2026-03-06 17:58:07

Patch Perfect (Easy)

Time of First Successful Submission: 2026-03-06 18:03:46

Patch Perfect (Hard)

Time of First Successful Submission: 2026-03-06 18:15:01

Trust the Yancode (Easy)

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

Trust the Yancode (Hard)

Time of First Successful Submission: 2026-03-09 18:12:05

Know the Yancode (Easy)

Time of First Successful Submission: 2026-03-09 18:46:05

Know the Yancode (Hard)

Time of First Successful Submission: 2026-03-09 18:50:26

Master the Yancode (Easy)

Time of First Successful Submission: 2026-03-10 10:53:11

Master the Yancode (Hard)

Time of First Successful Submission: 2026-03-10 11:06:10

Transcend the Yancode (Easy)

Time of First Successful Submission: 2026-03-10 11:21:15

Transcend the Yancode (Hard)

Time of First Successful Submission: 2026-03-10 12:07:29

The Yanalyzer (Easy)

Time of First Successful Submission: 2026-03-12 14:43:24

The Yanalyzer (Hard)

Time of First Successful Submission: 2026-03-12 15:27:43

The Yangler (Easy)

Time of First Successful Submission: 2026-03-13 06:23:03

The Yangler (Hard)

Time of First Successful Submission: 2026-03-13 11:09:54

Yancraft (Easy)

Time of First Successful Submission: 2026-03-13 13:04:30

Yancraft (Hard)

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

Yansanity (Easy)

Time of First Successful Submission: 2026-03-13 14:21:56

Yansanity (Hard)

Time of First Successful Submission: 2026-03-14 09:32:59

When the Cow Says Moo

Time of First Successful Submission: 2026-03-14 10:28:02

Predictable Migration

Time of First Successful Submission: 2026-03-14 13:09:04

Hashing Heifers

Time of First Successful Submission: 2026-03-14 13:25:41

Salty Stampede

Time of First Successful Submission: 2026-03-14 13:49:56

Loose Link (Easy)

Time of First Successful Submission: 2026-03-16 06:18:48

Loose Link (Hard)

Time of First Successful Submission: 2026-03-16 06:21:38

Call Chain (Easy)

Time of First Successful Submission: 2026-03-16 06:24:41

Call Chain (Hard)

Time of First Successful Submission: 2026-03-16 06:26:44

Chain of Command (Easy)

Time of First Successful Submission: 2026-03-16 18:01:52

Chain of Command (Hard)

Time of First Successful Submission: 2026-03-16 18:08:41

Stop, Pop, and ROP (Easy)

Time of First Successful Submission: 2026-03-17 13:27:01

Stop, Pop, and ROP (Hard)

Time of First Successful Submission: 2026-03-17 13:30:30

Stop, Pop and ROP II (Easy)

Time of First Successful Submission: 2026-03-18 19:26:01

Stop, Pop, and ROP II (Hard)

Time of First Successful Submission: 2026-03-19 06:10:56

Indirect Invocation (Easy)

Time of First Successful Submission: 2026-03-20 11:44:28

Indirect Invocation (Hard)

Time of First Successful Submission: 2026-03-20 11:50:19

Leaky Libc (Easy)

Time of First Successful Submission: 2026-03-20 20:27:25

Leaky Libc (Hard)

Time of First Successful Submission: 2026-03-20 20:31:35

Linux Luminarium

5 / 128 26888 / 31790

The PATH Variable

Time of First Successful Submission: 2026-01-27 17:32:13

Setting PATH

Time of First Successful Submission: 2026-01-27 17:33:41

Finding Commands

Time of First Successful Submission: 2026-01-27 17:35:34

Adding Commands

Time of First Successful Submission: 2026-01-27 17:39:29

Hijacking Commands

Time of First Successful Submission: 2026-01-27 17:42:56