Zero123

Intro to Programming Languages

9 / 253 35027 / 52121

Commands

Time of First Successful Submission: 2026-07-12 16:57:36

Command Arguments

Time of First Successful Submission: 2026-07-12 16:58:18

Command History

Time of First Successful Submission: 2026-07-12 16:58:59

The Root Path

Time of First Successful Submission: 2026-07-12 17:00:08

Absolute Paths

Time of First Successful Submission: 2026-07-12 17:00:48

Changing position

Time of First Successful Submission: 2026-07-12 17:02:09

Changing to an Absolute Path

Time of First Successful Submission: 2026-07-12 17:04:07

Relative Paths

Time of First Successful Submission: 2026-07-12 17:06:46

Cat

Time of First Successful Submission: 2026-07-12 17:11:39

Intro to Cybersecurity

183 / 183 310 / 25729

Path Traversal 1

Time of First Successful Submission: 2026-07-25 10:34:42

Path Traversal 2

Time of First Successful Submission: 2026-07-25 10:54:28

CMDi 1

Time of First Successful Submission: 2026-07-25 11:19:04

CMDi 2

Time of First Successful Submission: 2026-07-25 11:24:11

CMDi 3

Time of First Successful Submission: 2026-07-25 11:27:14

CMDi 4

Time of First Successful Submission: 2026-07-25 11:29:44

CMDi 5

Time of First Successful Submission: 2026-07-25 11:58:49

CMDi 6

Time of First Successful Submission: 2026-07-25 13:54:22

Authentication Bypass 1

Time of First Successful Submission: 2026-07-25 14:17:38

Authentication Bypass 2

Time of First Successful Submission: 2026-07-25 14:23:19

SQLi 1

Time of First Successful Submission: 2026-07-26 10:10:45

SQLi 2

Time of First Successful Submission: 2026-07-26 10:16:40

SQLi 3

Time of First Successful Submission: 2026-07-26 10:24:59

SQLi 4

Time of First Successful Submission: 2026-07-26 10:33:13

SQLi 5

Time of First Successful Submission: 2026-07-26 11:06:01

XSS 1

Time of First Successful Submission: 2026-07-26 11:28:15

XSS 2

Time of First Successful Submission: 2026-07-27 15:39:18

XSS 3

Time of First Successful Submission: 2026-07-27 15:55:26

XSS 4

Time of First Successful Submission: 2026-07-27 16:03:59

XSS 5

Time of First Successful Submission: 2026-07-28 14:34:38

XSS 6

Time of First Successful Submission: 2026-07-28 14:55:44

XSS 7

Time of First Successful Submission: 2026-07-28 15:02:32

CSRF 1

Time of First Successful Submission: 2026-07-29 12:55:21

CSRF 2

Time of First Successful Submission: 2026-07-29 13:33:11

CSRF 3

Time of First Successful Submission: 2026-07-29 13:52:42

CSRF 4

Time of First Successful Submission: 2026-07-29 14:05:13

CSRF 5

Time of First Successful Submission: 2026-07-29 14:28:17

Connect

Time of First Successful Submission: 2026-08-02 08:59:22

Send

Time of First Successful Submission: 2026-08-02 09:06:46

Shutdown

Time of First Successful Submission: 2026-08-02 09:26:38

Listen

Time of First Successful Submission: 2026-08-02 09:52:23

Scan 1

Time of First Successful Submission: 2026-08-02 10:42:17

Scan 2

Time of First Successful Submission: 2026-08-02 11:28:20

Monitor 1

Time of First Successful Submission: 2026-08-02 12:39:12

Monitor 2

Time of First Successful Submission: 2026-08-02 12:46:14

Sniffing Cookies

Time of First Successful Submission: 2026-08-02 13:27:58

Network Configuration

Time of First Successful Submission: 2026-08-02 13:05:50

Firewall 1

Time of First Successful Submission: 2026-08-07 12:36:42

Firewall 2

Time of First Successful Submission: 2026-08-07 12:51:30

Firewall 3

Time of First Successful Submission: 2026-08-07 12:54:26

Denial of Service 1

Time of First Successful Submission: 2026-08-07 13:03:11

Denial of Service 2

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

Denial of Service 3

Time of First Successful Submission: 2026-08-07 13:27:20

Ethernet

Time of First Successful Submission: 2026-08-07 16:35:53

IP

Time of First Successful Submission: 2026-08-07 16:42:29

TCP

Time of First Successful Submission: 2026-08-07 16:47:31

TCP Handshake

Time of First Successful Submission: 2026-08-08 14:36:00

UDP

Time of First Successful Submission: 2026-08-08 14:50:58

UDP 2

Time of First Successful Submission: 2026-08-08 14:57:01

UDP Spoofing 1

Time of First Successful Submission: 2026-08-08 15:04:25

UDP Spoofing 2

Time of First Successful Submission: 2026-08-09 02:28:45

UDP Spoofing 3

Time of First Successful Submission: 2026-08-09 02:51:42

UDP Spoofing 4

Time of First Successful Submission: 2026-08-09 03:50:30

ARP

Time of First Successful Submission: 2026-08-09 07:55:11

Intercept

Time of First Successful Submission: 2026-08-10 12:17:57

Man-in-the-Middle

Time of First Successful Submission: 2026-08-10 15:31:16

XOR

Time of First Successful Submission: 2026-07-12 17:15:08

XORing Hex

Time of First Successful Submission: 2026-07-12 17:18:39

XORing ASCII

Time of First Successful Submission: 2026-07-12 17:23:22

XORing ASCII Strings

Time of First Successful Submission: 2026-07-13 11:35:30

One-time Pad

Time of First Successful Submission: 2026-07-13 11:39:07

One-time Pad Tampering

Time of First Successful Submission: 2026-07-13 11:52:03

Many-time Pad

Time of First Successful Submission: 2026-07-13 12:16:30

AES

Time of First Successful Submission: 2026-07-13 12:58:48

AES-ECB-CPA

Time of First Successful Submission: 2026-07-13 17:04:06

AES-ECB-CPA-HTTP

Time of First Successful Submission: 2026-07-14 06:40:32

AES-ECB-CPA-HTTP (base64)

Time of First Successful Submission: 2026-07-14 06:55:18

AES-ECB-CPA-Suffix

Time of First Successful Submission: 2026-07-14 07:16:50

AES-ECB-CPA-Prefix

Time of First Successful Submission: 2026-07-14 12:58:11

AES-ECB-CPA-Prefix-2

Time of First Successful Submission: 2026-07-14 13:24:48

AES-ECB-CPA-Prefix-Miniboss

Time of First Successful Submission: 2026-07-14 15:18:46

AES-ECB-CPA-Prefix-Boss

Time of First Successful Submission: 2026-07-16 14:53:34

AES-CBC

Time of First Successful Submission: 2026-07-17 09:52:35

AES-CBC Tampering

Time of First Successful Submission: 2026-07-17 10:20:00

AES-CBC Resizing

Time of First Successful Submission: 2026-07-17 12:28:12

AES-CBC-POA-Partial-Block

Time of First Successful Submission: 2026-07-18 09:11:19

AES-CBC-POA-Full-Block

Time of First Successful Submission: 2026-07-18 09:30:29

AES-CBC-POA-Multi-Block

Time of First Successful Submission: 2026-07-18 10:50:39

AES-CBC-POA-Encrypt

Time of First Successful Submission: 2026-07-18 13:07:48

AES-CBC-POA-Encrypt-2

Time of First Successful Submission: 2026-07-18 13:25:07

DHKE

Time of First Successful Submission: 2026-07-19 12:33:08

DHKE-to-AES

Time of First Successful Submission: 2026-07-19 12:48:06

RSA 1

Time of First Successful Submission: 2026-07-19 13:10:08

RSA 2

Time of First Successful Submission: 2026-07-19 13:22:52

RSA 3

Time of First Successful Submission: 2026-07-19 13:53:24

RSA 4

Time of First Successful Submission: 2026-07-19 15:10:44

RSA Signatures

Time of First Successful Submission: 2026-07-20 12:58:42

SHA 1

Time of First Successful Submission: 2026-07-20 13:20:57

SHA 2

Time of First Successful Submission: 2026-07-20 13:35:45

TLS 1

Time of First Successful Submission: 2026-07-20 15:14:24

TLS 2

Time of First Successful Submission: 2026-07-21 14:20:20

level1

Time of First Successful Submission: 2026-08-11 12:53:48

level2

Time of First Successful Submission: 2026-08-11 12:57:56

level3

Time of First Successful Submission: 2026-08-11 13:04:39

level4

Time of First Successful Submission: 2026-08-12 12:42:36

level5

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

level6

Time of First Successful Submission: 2026-08-12 16:15:46

level7

Time of First Successful Submission: 2026-08-16 11:31:16

level8

Time of First Successful Submission: 2026-08-14 12:41:04

level9

Time of First Successful Submission: 2026-08-14 12:44:08

level10

Time of First Successful Submission: 2026-08-14 13:23:20

level11

Time of First Successful Submission: 2026-08-14 13:45:54

level12

Time of First Successful Submission: 2026-08-15 09:03:17

level13

Time of First Successful Submission: 2026-08-15 09:03:04

level14

Time of First Successful Submission: 2026-08-16 11:40:07

level15

Time of First Successful Submission: 2026-08-16 11:44:37

level16

Time of First Successful Submission: 2026-08-16 11:50:06

level17

Time of First Successful Submission: 2026-08-16 17:52:56

level18

Time of First Successful Submission: 2026-08-16 17:53:43

level19

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

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2026-08-25 05:27:37

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2026-08-25 05:35:24

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2026-08-25 05:47:34

Reading Endianness (Python)

Time of First Successful Submission: 2026-08-25 06:35:03

Reading Endianness (C)

Time of First Successful Submission: 2026-08-25 06:39:10

Reading Endianness (x86)

Time of First Successful Submission: 2026-08-25 06:44:50

Version Information (Python)

Time of First Successful Submission: 2026-08-25 09:13:12

Version Information (C)

Time of First Successful Submission: 2026-08-25 09:15:46

Version Information (x86)

Time of First Successful Submission: 2026-08-25 09:28:19

Metadata and Data (Python)

Time of First Successful Submission: 2026-08-25 09:48:16

Metadata and Data (C)

Time of First Successful Submission: 2026-08-25 10:04:31

Metadata and Data (x86)

Time of First Successful Submission: 2026-08-25 10:31:33

Input Restrictions (Python)

Time of First Successful Submission: 2026-08-25 10:37:38

Input Restrictions (C)

Time of First Successful Submission: 2026-08-25 10:42:15

Input Restrictions (x86)

Time of First Successful Submission: 2026-08-25 10:46:56

Behold the cIMG! (Python)

Time of First Successful Submission: 2026-08-25 10:58:17

Behold the cIMG! (C)

Time of First Successful Submission: 2026-08-25 11:03:01

Behold the cIMG! (x86)

Time of First Successful Submission: 2026-08-25 11:07:20

A Basic cIMG (Python)

Time of First Successful Submission: 2026-08-25 11:33:27

A Basic cIMG (C)

Time of First Successful Submission: 2026-08-25 11:37:56

A Basic cIMG (x86)

Time of First Successful Submission: 2026-08-25 11:49:16

Internal State Mini (C)

Time of First Successful Submission: 2026-08-26 08:25:12

Internal State Mini (x86)

Time of First Successful Submission: 2026-08-26 08:41:04

Internal State (C)

Time of First Successful Submission: 2026-08-26 09:11:32

Internal State (x86)

Time of First Successful Submission: 2026-08-26 10:51:13

File Formats: Directives (C)

Time of First Successful Submission: 2026-08-26 12:06:07

File Formats: Directives (x86)

Time of First Successful Submission: 2026-08-26 12:47:04

The Patch Directive

Time of First Successful Submission: 2026-08-27 15:07:34

Optimizing for Space

Time of First Successful Submission: 2026-08-28 11:20:13

Tweaking Images

Time of First Successful Submission: 2026-08-31 13:21:10

Storage and Retrieval

Time of First Successful Submission: 2026-09-01 14:25:29

Extracting Knowledge

Time of First Successful Submission: 2026-09-02 09:15:41

Advanced Sprites

Time of First Successful Submission: 2026-09-03 12:17:47

Accessing Resources

Time of First Successful Submission: 2026-09-04 10:34:20

Unsafe Animations

Time of First Successful Submission: 2026-09-05 11:02:39

Animations

Time of First Successful Submission: 2026-09-05 12:23:09

Interoperability: Patching Data

Time of First Successful Submission: 2026-09-06 09:23:10

Patching Code

Time of First Successful Submission: 2026-09-06 10:45:18

Patching Control Flow

Time of First Successful Submission: 2026-09-06 11:23:13

Your First Overflow (easy)

Time of First Successful Submission: 2026-09-07 08:04:59

Your First Overflow (hard)

Time of First Successful Submission: 2026-09-07 08:48:27

Precision (easy)

Time of First Successful Submission: 2026-09-07 08:53:57

Precision (hard)

Time of First Successful Submission: 2026-09-07 09:20:24

Variable Control (easy)

Time of First Successful Submission: 2026-09-07 09:30:33

Variable Control (hard)

Time of First Successful Submission: 2026-09-07 09:56:48

Control Hijack (easy)

Time of First Successful Submission: 2026-09-07 10:14:14

Control Hijack (hard)

Time of First Successful Submission: 2026-09-07 10:20:28

Tricky Control Hijack (easy)

Time of First Successful Submission: 2026-09-07 10:45:36

Tricky Control Hijack (hard)

Time of First Successful Submission: 2026-09-07 10:54:03

PIEs (easy)

Time of First Successful Submission: 2026-09-07 11:35:41

PIEs (hard)

Time of First Successful Submission: 2026-09-07 11:44:20

String Lengths (easy)

Time of First Successful Submission: 2026-09-07 13:06:49

String Lengths (hard)

Time of First Successful Submission: 2026-09-07 13:15:40

Basic Shellcode

Time of First Successful Submission: 2026-09-08 07:43:35

NOP Sleds

Time of First Successful Submission: 2026-09-08 07:56:06

NULL-Free Shellcode

Time of First Successful Submission: 2026-09-08 08:53:19

Hijack to (Mapped) Shellcode (easy)

Time of First Successful Submission: 2026-09-08 10:52:13

Hijack to (Mapped) Shellcode (hard)

Time of First Successful Submission: 2026-09-08 10:58:36

Hijack to Shellcode (easy)

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

Hijack to Shellcode (hard)

Time of First Successful Submission: 2026-09-08 13:49:00

ECB-to-Win (easy)

Time of First Successful Submission: 2026-09-09 10:20:26

ECB-to-Win (hard)

Time of First Successful Submission: 2026-09-09 11:37:21

ECB-to-Shellcode (easy)

Time of First Successful Submission: 2026-09-09 12:50:29

ECB-to-Shellcode (hard)

Time of First Successful Submission: 2026-09-09 15:06:24

CIMG Screenshots

Time of First Successful Submission: 2026-09-10 11:50:31

CIMG Screenshots 2

Time of First Successful Submission: 2026-09-11 14:05:02

Wily Webserver

Time of First Successful Submission: 2026-09-12 07:44:12

The Watering Hole

Time of First Successful Submission: 2026-09-12 14:21:26

Secure Chat 1

Time of First Successful Submission: 2026-09-14 05:51:19

Secure Chat 2

Time of First Successful Submission: 2026-10-07 07:49:48

Secure Chat 3

Time of First Successful Submission: 2026-10-08 08:43:45

Secure Chat 4

Time of First Successful Submission: 2026-10-08 16:23:17

Secure Chat 5

Time of First Successful Submission: 2026-10-10 07:49:16

Program Security

32 / 159 2553 / 10814

ello ackers!

Time of First Successful Submission: 2026-10-11 09:25:55

Syscall Smuggler

Time of First Successful Submission: 2026-10-11 10:08:56

Syscall Shenanigans

Time of First Successful Submission: 2026-10-11 10:27:04

Byte Budget

Time of First Successful Submission: 2026-10-12 04:37:07

ClobberCode

Time of First Successful Submission: 2026-10-12 06:17:27

Diverse Delivery

Time of First Successful Submission: 2026-10-13 06:55:26

Pocket Payload

Time of First Successful Submission: 2026-10-13 09:19:32

Micro Menace

Time of First Successful Submission: 2026-10-13 10:05:19

Login Leakage (Easy)

Time of First Successful Submission: 2026-10-14 11:41:27

Login Leakage (Hard)

Time of First Successful Submission: 2026-10-14 11:52:55

Bounds Breaker (Easy)

Time of First Successful Submission: 2026-10-14 14:36:42

Bounds Breaker (Hard)

Time of First Successful Submission: 2026-10-14 14:45:16

Casting Catastrophe (Easy)

Time of First Successful Submission: 2026-10-15 02:46:38

Casting Catastrophe (Hard)

Time of First Successful Submission: 2026-10-15 03:02:36

Pointer Problems (Easy)

Time of First Successful Submission: 2026-10-15 04:39:07

Pointer Problems (Hard)

Time of First Successful Submission: 2026-10-15 05:05:35

Anomalous Array (Easy)

Time of First Successful Submission: 2026-10-15 07:17:51

Anomalous Array (Hard)

Time of First Successful Submission: 2026-10-15 07:27:58

Now you got it (Easy)

Time of First Successful Submission: 2026-10-15 14:55:30

Now you got it (Hard)

Time of First Successful Submission: 2026-10-15 16:04:30

Loop Lunacy (Easy)

Time of First Successful Submission: 2026-10-17 15:45:07

Loop Lunacy (Hard)

Time of First Successful Submission: 2026-10-17 15:58:38

Nosy Neighbor (Easy)

Time of First Successful Submission: 2026-10-18 03:46:43

Nosy Neighbor (Hard)

Time of First Successful Submission: 2026-10-18 03:58:28

Recursive Ruin (Easy)

Time of First Successful Submission: 2026-10-18 06:48:27

Recursive Ruin (Hard)

Time of First Successful Submission: 2026-10-18 07:36:12

Lingering Leftover (Easy)

Time of First Successful Submission: 2026-10-18 08:03:47

Lingering Leftover (Hard)

Time of First Successful Submission: 2026-10-18 08:42:37

Latent Leak (Easy)

Time of First Successful Submission: 2026-10-19 03:49:31

Latent Leak (Hard)

Time of First Successful Submission: 2026-10-19 04:11:14

Fork Foolery (Easy)

Time of First Successful Submission: 2026-10-19 06:56:26

Fork Foolery (Hard)

Time of First Successful Submission: 2026-10-19 07:30:57

Start Here

10 / 10 13779 / 72230

Using the Terminal

Time of First Successful Submission: 2026-06-26 13:51:02

Using the VSCode Workspace

Time of First Successful Submission: 2026-06-26 14:01:28

Using the GUI Desktop

Time of First Successful Submission: 2026-06-26 14:23:34

Pasting into the Desktop

Time of First Successful Submission: 2026-06-26 14:29:55

Restarting Challenges

Time of First Successful Submission: 2026-06-26 14:42:01

Challenge Programs

Time of First Successful Submission: 2026-06-26 14:45:39

The Flag File

Time of First Successful Submission: 2026-06-26 14:47:33

Using Privileged Mode

Time of First Successful Submission: 2026-07-12 16:54:39

Persistent Home Directories - One

Time of First Successful Submission: 2026-07-12 16:50:25

Persistent Home Directories - Two

Time of First Successful Submission: 2026-07-12 16:51:25

Linux Luminarium

12 / 128 36636 / 52836

Intro to Commands

Time of First Successful Submission: 2026-07-12 16:57:36

Intro to Arguments

Time of First Successful Submission: 2026-07-12 16:58:18

Command History

Time of First Successful Submission: 2026-07-12 16:58:59

The Root

Time of First Successful Submission: 2026-07-12 17:00:08

Program and absolute paths

Time of First Successful Submission: 2026-07-12 17:00:48

Position thy self

Time of First Successful Submission: 2026-07-12 17:02:09

Position elsewhere

Time of First Successful Submission: 2026-07-12 17:04:07

implicit relative paths, from /

Time of First Successful Submission: 2026-07-12 17:06:46

explicit relative paths, from /

Time of First Successful Submission: 2026-07-12 17:07:13

implicit relative path

Time of First Successful Submission: 2026-07-12 17:07:57

home sweet home

Time of First Successful Submission: 2026-07-12 17:10:34

cat: not the pet, but the command!

Time of First Successful Submission: 2026-07-12 17:11:39

DSU Cyber Camps

11 / 104 13924 / 72702

Using the Terminal

Time of First Successful Submission: 2026-06-26 13:51:02

Using the VSCode Workspace

Time of First Successful Submission: 2026-06-26 14:01:28

Using the GUI Desktop

Time of First Successful Submission: 2026-06-26 14:23:34

Pasting into the Desktop

Time of First Successful Submission: 2026-06-26 14:29:55

Connecting over SSH

Time of First Successful Submission: 2026-06-26 14:35:43

Restarting Challenges

Time of First Successful Submission: 2026-06-26 14:42:01

Challenge Programs

Time of First Successful Submission: 2026-06-26 14:45:39

The Flag File

Time of First Successful Submission: 2026-06-26 14:47:33

Using Privileged Mode

Time of First Successful Submission: 2026-07-12 16:54:39

Persistent Home Directories - One

Time of First Successful Submission: 2026-07-12 16:50:25

Persistent Home Directories - Two

Time of First Successful Submission: 2026-07-12 16:51:25

GCA CTF

11 / 104 13924 / 72702

Using the Terminal

Time of First Successful Submission: 2026-06-26 13:51:02

Using the VSCode Workspace

Time of First Successful Submission: 2026-06-26 14:01:28

Using the GUI Desktop

Time of First Successful Submission: 2026-06-26 14:23:34

Pasting into the Desktop

Time of First Successful Submission: 2026-06-26 14:29:55

Connecting over SSH

Time of First Successful Submission: 2026-06-26 14:35:43

Restarting Challenges

Time of First Successful Submission: 2026-06-26 14:42:01

Challenge Programs

Time of First Successful Submission: 2026-06-26 14:45:39

The Flag File

Time of First Successful Submission: 2026-06-26 14:47:33

Using Privileged Mode

Time of First Successful Submission: 2026-07-12 16:54:39

Persistent Home Directories - One

Time of First Successful Submission: 2026-07-12 16:50:25

Persistent Home Directories - Two

Time of First Successful Submission: 2026-07-12 16:51:25