Nu1t

Intro to Cybersecurity

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Path Traversal 1

Time of First Successful Submission: 2026-02-03 15:11:53

Path Traversal 2

Time of First Successful Submission: 2026-02-04 20:26:40

CMDi 1

Time of First Successful Submission: 2026-02-03 16:07:13

CMDi 2

Time of First Successful Submission: 2026-02-05 18:56:19

CMDi 3

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

CMDi 4

Time of First Successful Submission: 2026-02-05 19:14:24

CMDi 5

Time of First Successful Submission: 2026-02-05 19:18:48

CMDi 6

Time of First Successful Submission: 2026-02-05 19:49:14

Authentication Bypass 1

Time of First Successful Submission: 2026-02-05 20:01:55

Authentication Bypass 2

Time of First Successful Submission: 2026-02-05 20:15:12

SQLi 1

Time of First Successful Submission: 2026-02-05 23:37:58

SQLi 2

Time of First Successful Submission: 2026-02-06 15:35:59

SQLi 3

Time of First Successful Submission: 2026-02-06 17:09:14

SQLi 4

Time of First Successful Submission: 2026-02-06 17:22:33

SQLi 5

Time of First Successful Submission: 2026-02-06 18:31:39

XSS 1

Time of First Successful Submission: 2026-02-06 19:12:03

XSS 2

Time of First Successful Submission: 2026-02-06 19:14:56

XSS 3

Time of First Successful Submission: 2026-02-06 19:21:33

XSS 4

Time of First Successful Submission: 2026-02-06 19:38:18

XSS 5

Time of First Successful Submission: 2026-02-06 20:39:19

XSS 6

Time of First Successful Submission: 2026-02-06 20:47:03

XSS 7

Time of First Successful Submission: 2026-02-06 22:36:30

CSRF 1

Time of First Successful Submission: 2026-02-09 18:16:25

CSRF 2

Time of First Successful Submission: 2026-02-09 19:17:39

CSRF 3

Time of First Successful Submission: 2026-02-09 19:49:27

CSRF 4

Time of First Successful Submission: 2026-02-09 20:39:19

CSRF 5

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

Connect

Time of First Successful Submission: 2026-02-09 23:30:50

Send

Time of First Successful Submission: 2026-02-09 23:32:20

Shutdown

Time of First Successful Submission: 2026-02-09 23:34:03

Listen

Time of First Successful Submission: 2026-02-09 23:39:26

Scan 1

Time of First Successful Submission: 2026-02-09 23:48:37

Scan 2

Time of First Successful Submission: 2026-02-10 01:03:47

Monitor 1

Time of First Successful Submission: 2026-02-10 01:56:17

Monitor 2

Time of First Successful Submission: 2026-02-10 01:59:13

Sniffing Cookies

Time of First Successful Submission: 2026-02-10 02:04:46

Network Configuration

Time of First Successful Submission: 2026-02-10 15:12:21

Firewall 1

Time of First Successful Submission: 2026-02-10 15:17:43

Firewall 2

Time of First Successful Submission: 2026-02-10 15:29:23

Firewall 3

Time of First Successful Submission: 2026-02-10 15:40:48

Denial of Service 1

Time of First Successful Submission: 2026-02-10 15:59:26

Denial of Service 2

Time of First Successful Submission: 2026-02-10 16:58:49

Denial of Service 3

Time of First Successful Submission: 2026-02-10 18:33:05

Ethernet

Time of First Successful Submission: 2026-02-10 19:25:28

IP

Time of First Successful Submission: 2026-02-10 19:40:54

TCP

Time of First Successful Submission: 2026-02-10 20:26:14

TCP Handshake

Time of First Successful Submission: 2026-02-10 20:46:20

UDP

Time of First Successful Submission: 2026-02-10 21:03:19

UDP 2

Time of First Successful Submission: 2026-02-10 21:08:25

UDP Spoofing 1

Time of First Successful Submission: 2026-02-10 21:39:20

UDP Spoofing 2

Time of First Successful Submission: 2026-02-10 23:42:39

UDP Spoofing 3

Time of First Successful Submission: 2026-02-11 15:08:03

UDP Spoofing 4

Time of First Successful Submission: 2026-02-11 15:51:59

ARP

Time of First Successful Submission: 2026-02-11 16:24:01

Intercept

Time of First Successful Submission: 2026-02-11 19:44:46

Man-in-the-Middle

Time of First Successful Submission: 2026-02-11 21:14:25

XOR

Time of First Successful Submission: 2025-12-19 15:42:58

XORing Hex

Time of First Successful Submission: 2025-12-19 16:26:14

XORing ASCII

Time of First Successful Submission: 2025-12-19 15:57:30

XORing ASCII Strings

Time of First Successful Submission: 2025-12-19 16:35:52

One-time Pad

Time of First Successful Submission: 2025-12-19 16:43:29

One-time Pad Tampering

Time of First Successful Submission: 2025-12-19 17:06:39

Many-time Pad

Time of First Successful Submission: 2025-12-19 17:25:16

AES

Time of First Successful Submission: 2025-12-19 17:27:49

AES-ECB-CPA

Time of First Successful Submission: 2025-12-19 18:36:00

AES-ECB-CPA-HTTP

Time of First Successful Submission: 2026-02-12 14:00:08

AES-ECB-CPA-HTTP (base64)

Time of First Successful Submission: 2026-02-12 14:09:03

AES-ECB-CPA-Suffix

Time of First Successful Submission: 2026-02-12 16:30:15

AES-ECB-CPA-Prefix

Time of First Successful Submission: 2026-02-17 22:19:58

AES-ECB-CPA-Prefix-2

Time of First Successful Submission: 2026-02-17 22:22:45

AES-ECB-CPA-Prefix-Miniboss

Time of First Successful Submission: 2026-02-18 00:38:16

AES-ECB-CPA-Prefix-Boss

Time of First Successful Submission: 2026-02-18 01:42:26

AES-CBC

Time of First Successful Submission: 2025-12-21 04:36:02

AES-CBC Tampering

Time of First Successful Submission: 2026-02-18 15:21:33

AES-CBC Resizing

Time of First Successful Submission: 2026-02-18 15:36:47

AES-CBC-POA-Partial-Block

Time of First Successful Submission: 2026-02-18 19:11:19

AES-CBC-POA-Full-Block

Time of First Successful Submission: 2026-02-18 19:12:29

AES-CBC-POA-Multi-Block

Time of First Successful Submission: 2026-02-18 19:21:50

AES-CBC-POA-Encrypt

Time of First Successful Submission: 2026-02-18 19:41:30

AES-CBC-POA-Encrypt-2

Time of First Successful Submission: 2026-02-18 19:44:33

DHKE

Time of First Successful Submission: 2026-02-12 17:41:56

DHKE-to-AES

Time of First Successful Submission: 2026-02-12 17:54:19

RSA 1

Time of First Successful Submission: 2026-02-12 18:19:28

RSA 2

Time of First Successful Submission: 2026-02-12 18:26:21

RSA 3

Time of First Successful Submission: 2026-02-12 18:43:20

RSA 4

Time of First Successful Submission: 2026-02-12 19:00:13

RSA Signatures

Time of First Successful Submission: 2026-02-13 19:45:10

SHA 1

Time of First Successful Submission: 2026-02-13 20:44:11

SHA 2

Time of First Successful Submission: 2026-02-13 21:20:39

TLS 1

Time of First Successful Submission: 2026-02-14 20:28:00

TLS 2

Time of First Successful Submission: 2026-02-15 00:49:50

level1

Time of First Successful Submission: 2026-02-09 21:36:42

level2

Time of First Successful Submission: 2026-02-09 21:37:04

level3

Time of First Successful Submission: 2026-02-09 21:37:41

level4

Time of First Successful Submission: 2026-02-09 21:38:15

level5

Time of First Successful Submission: 2026-02-09 21:40:04

level6

Time of First Successful Submission: 2026-02-09 22:01:08

level7

Time of First Successful Submission: 2026-02-09 22:02:29

level8

Time of First Successful Submission: 2026-02-09 22:03:12

level9

Time of First Successful Submission: 2026-02-09 22:04:33

level10

Time of First Successful Submission: 2026-02-09 22:07:43

level11

Time of First Successful Submission: 2026-02-09 22:11:21

level12

Time of First Successful Submission: 2026-02-09 22:13:21

level13

Time of First Successful Submission: 2026-02-09 22:13:59

level14

Time of First Successful Submission: 2026-02-09 22:15:11

level15

Time of First Successful Submission: 2026-02-09 22:16:00

level16

Time of First Successful Submission: 2026-02-09 22:17:33

level17

Time of First Successful Submission: 2026-02-12 12:07:00

level18

Time of First Successful Submission: 2026-02-12 12:27:15

level19

Time of First Successful Submission: 2026-02-12 12:39:12

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2026-02-15 01:07:50

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2026-02-15 01:08:51

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2026-02-15 01:19:46

Reading Endianness (Python)

Time of First Successful Submission: 2026-02-15 01:28:08

Reading Endianness (C)

Time of First Successful Submission: 2026-02-15 01:33:02

Reading Endianness (x86)

Time of First Successful Submission: 2026-02-15 01:38:28

Version Information (Python)

Time of First Successful Submission: 2026-02-15 02:31:56

Version Information (C)

Time of First Successful Submission: 2026-02-15 02:33:31

Version Information (x86)

Time of First Successful Submission: 2026-02-15 02:36:52

Metadata and Data (Python)

Time of First Successful Submission: 2026-02-15 02:45:11

Metadata and Data (C)

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

Metadata and Data (x86)

Time of First Successful Submission: 2026-02-15 03:14:31

Input Restrictions (Python)

Time of First Successful Submission: 2026-02-15 03:29:27

Input Restrictions (C)

Time of First Successful Submission: 2026-02-15 03:30:50

Input Restrictions (x86)

Time of First Successful Submission: 2026-02-15 03:33:11

Behold the cIMG! (Python)

Time of First Successful Submission: 2026-02-15 03:38:56

Behold the cIMG! (C)

Time of First Successful Submission: 2026-02-15 03:43:07

Behold the cIMG! (x86)

Time of First Successful Submission: 2026-02-15 03:47:18

A Basic cIMG (Python)

Time of First Successful Submission: 2026-02-15 04:03:42

A Basic cIMG (C)

Time of First Successful Submission: 2026-02-15 04:06:35

A Basic cIMG (x86)

Time of First Successful Submission: 2026-02-15 04:09:11

Internal State Mini (C)

Time of First Successful Submission: 2026-02-15 20:58:32

Internal State Mini (x86)

Time of First Successful Submission: 2026-02-15 21:55:59

Internal State (C)

Time of First Successful Submission: 2026-02-18 22:57:03

Internal State (x86)

Time of First Successful Submission: 2026-02-19 12:13:04

File Formats: Directives (C)

Time of First Successful Submission: 2026-02-19 13:01:35

File Formats: Directives (x86)

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

The Patch Directive

Time of First Successful Submission: 2026-02-19 14:18:05

Optimizing for Space

Time of First Successful Submission: 2026-02-19 16:21:18

Tweaking Images

Time of First Successful Submission: 2026-02-19 17:28:04

Storage and Retrieval

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

Your First Overflow (easy)

Time of First Successful Submission: 2026-02-16 03:12:26

Your First Overflow (hard)

Time of First Successful Submission: 2026-02-16 03:25:11

Precision (easy)

Time of First Successful Submission: 2026-02-16 09:40:15

Precision (hard)

Time of First Successful Submission: 2026-02-16 09:49:12

Variable Control (easy)

Time of First Successful Submission: 2026-02-16 09:53:01

Variable Control (hard)

Time of First Successful Submission: 2026-02-16 10:10:42

Control Hijack (easy)

Time of First Successful Submission: 2026-02-16 12:59:27

Control Hijack (hard)

Time of First Successful Submission: 2026-02-16 14:20:06

Tricky Control Hijack (easy)

Time of First Successful Submission: 2026-02-16 14:41:45

Tricky Control Hijack (hard)

Time of First Successful Submission: 2026-02-16 16:57:27

PIEs (easy)

Time of First Successful Submission: 2026-02-16 17:15:47

PIEs (hard)

Time of First Successful Submission: 2026-02-16 18:26:53

String Lengths (easy)

Time of First Successful Submission: 2026-02-16 18:35:45

String Lengths (hard)

Time of First Successful Submission: 2026-02-16 18:41:51

Basic Shellcode

Time of First Successful Submission: 2026-02-16 22:03:00

NOP Sleds

Time of First Successful Submission: 2026-02-16 22:06:27

NULL-Free Shellcode

Time of First Successful Submission: 2026-02-16 22:10:12

Hijack to (Mapped) Shellcode (easy)

Time of First Successful Submission: 2026-02-17 01:46:38

Hijack to (Mapped) Shellcode (hard)

Time of First Successful Submission: 2026-02-17 13:15:08

Hijack to Shellcode (easy)

Time of First Successful Submission: 2026-02-17 15:50:23

Hijack to Shellcode (hard)

Time of First Successful Submission: 2026-02-17 17:55:33


Start Here

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Using the Terminal

Time of First Successful Submission: 2026-02-07 18:23:20

Using the VSCode Workspace

Time of First Successful Submission: 2026-02-07 18:25:25

Using the GUI Desktop

Time of First Successful Submission: 2026-02-07 18:29:50

Pasting into the Desktop

Time of First Successful Submission: 2026-02-07 18:32:35

Restarting Challenges

Time of First Successful Submission: 2026-02-07 18:38:57

Challenge Programs

Time of First Successful Submission: 2026-02-07 18:50:33

The Flag File

Time of First Successful Submission: 2026-02-07 18:51:26

Using Privileged Mode

Time of First Successful Submission: 2026-02-07 18:55:44

Persistent Home Directories - One

Time of First Successful Submission: 2026-02-07 18:56:47

Persistent Home Directories - Two

Time of First Successful Submission: 2026-02-07 18:57:11


GCA CTF

12 / 104 1351 / 40655


Using the Terminal

Time of First Successful Submission: 2026-02-07 18:23:20

Using the VSCode Workspace

Time of First Successful Submission: 2026-02-07 18:25:25

Using the GUI Desktop

Time of First Successful Submission: 2026-02-07 18:29:50

Pasting into the Desktop

Time of First Successful Submission: 2026-02-07 18:32:35

Connecting over SSH

Time of First Successful Submission: 2026-02-07 18:33:30

Restarting Challenges

Time of First Successful Submission: 2026-02-07 18:38:57

Getting Help

Time of First Successful Submission: 2026-02-07 18:49:52

Challenge Programs

Time of First Successful Submission: 2026-02-07 18:50:33

The Flag File

Time of First Successful Submission: 2026-02-07 18:51:26

Using Privileged Mode

Time of First Successful Submission: 2026-02-07 18:55:44

Persistent Home Directories - One

Time of First Successful Submission: 2026-02-07 18:56:47

Persistent Home Directories - Two

Time of First Successful Submission: 2026-02-07 18:57:11