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level1

Time of First Successful Submission: 2025-07-02 00:31:09

Intro to Programming Languages

15 / 234 836 / 27901

Commands

Time of First Successful Submission: 2025-06-02 21:30:01

Command Arguments

Time of First Successful Submission: 2025-06-02 21:32:07

Command History

Time of First Successful Submission: 2025-06-08 03:20:31

The Root Path

Time of First Successful Submission: 2025-06-02 21:53:40

Absolute Paths

Time of First Successful Submission: 2025-06-02 22:14:21

Changing position

Time of First Successful Submission: 2025-06-02 22:16:15

Changing to an Absolute Path

Time of First Successful Submission: 2025-06-02 22:17:47

Relative Paths

Time of First Successful Submission: 2025-06-02 22:20:17

Cat

Time of First Successful Submission: 2025-06-02 22:41:54

Ls

Time of First Successful Submission: 2025-06-02 22:45:54

Ls All

Time of First Successful Submission: 2025-06-02 23:05:18

Find

Time of First Successful Submission: 2025-06-02 23:23:13

Piping Echo

Time of First Successful Submission: 2025-06-03 22:45:58

Piping Stdout

Time of First Successful Submission: 2025-06-03 22:47:36

Piping Stdin

Time of First Successful Submission: 2025-06-03 23:05:13

Intro to Cybersecurity

150 / 183 475 / 17833

Path Traversal 1

Time of First Successful Submission: 2025-07-21 20:21:49

Path Traversal 2

Time of First Successful Submission: 2025-07-21 20:53:27

CMDi 1

Time of First Successful Submission: 2025-07-22 19:45:53

CMDi 2

Time of First Successful Submission: 2025-07-22 19:58:17

CMDi 3

Time of First Successful Submission: 2025-07-22 20:36:06

CMDi 4

Time of First Successful Submission: 2025-07-22 20:37:56

CMDi 5

Time of First Successful Submission: 2025-07-22 20:41:44

CMDi 6

Time of First Successful Submission: 2025-07-22 20:47:38

Authentication Bypass 1

Time of First Successful Submission: 2025-07-22 20:51:25

Authentication Bypass 2

Time of First Successful Submission: 2025-07-22 21:02:23

SQLi 1

Time of First Successful Submission: 2025-07-22 21:12:58

SQLi 2

Time of First Successful Submission: 2025-07-22 21:15:28

SQLi 3

Time of First Successful Submission: 2025-07-22 21:23:24

SQLi 4

Time of First Successful Submission: 2025-07-22 21:30:29

SQLi 5

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

XSS 1

Time of First Successful Submission: 2025-07-22 22:10:35

XSS 2

Time of First Successful Submission: 2025-07-22 22:16:26

XSS 3

Time of First Successful Submission: 2025-07-22 22:21:14

XSS 4

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

XSS 5

Time of First Successful Submission: 2025-07-22 22:41:16

XSS 6

Time of First Successful Submission: 2025-07-22 22:49:07

XSS 7

Time of First Successful Submission: 2025-07-22 23:11:50

CSRF 1

Time of First Successful Submission: 2025-07-22 23:40:39

CSRF 2

Time of First Successful Submission: 2025-07-22 23:53:59

CSRF 3

Time of First Successful Submission: 2025-07-22 23:59:48

CSRF 4

Time of First Successful Submission: 2025-07-23 00:08:29

CSRF 5

Time of First Successful Submission: 2025-07-23 00:22:18

Connect

Time of First Successful Submission: 2025-07-28 23:19:12

Send

Time of First Successful Submission: 2025-07-28 23:23:36

Shutdown

Time of First Successful Submission: 2025-07-28 23:25:44

Listen

Time of First Successful Submission: 2025-07-28 23:26:28

Scan 1

Time of First Successful Submission: 2025-07-28 23:38:44

Scan 2

Time of First Successful Submission: 2025-07-29 00:15:40

Monitor 1

Time of First Successful Submission: 2025-07-29 00:23:24

Monitor 2

Time of First Successful Submission: 2025-07-29 00:33:58

Sniffing Cookies

Time of First Successful Submission: 2025-07-29 02:25:28

Network Configuration

Time of First Successful Submission: 2025-07-29 02:37:17

Firewall 1

Time of First Successful Submission: 2025-07-29 02:43:29

Firewall 2

Time of First Successful Submission: 2025-07-29 02:52:50

Firewall 3

Time of First Successful Submission: 2025-07-29 02:55:07

Denial of Service 1

Time of First Successful Submission: 2025-07-29 19:33:38

Denial of Service 2

Time of First Successful Submission: 2025-07-29 19:38:19

Denial of Service 3

Time of First Successful Submission: 2025-07-29 19:52:29

Ethernet

Time of First Successful Submission: 2025-07-29 19:57:23

IP

Time of First Successful Submission: 2025-07-29 20:01:44

TCP

Time of First Successful Submission: 2025-07-29 20:07:38

TCP Handshake

Time of First Successful Submission: 2025-07-29 20:13:40

UDP

Time of First Successful Submission: 2025-07-29 20:24:40

UDP 2

Time of First Successful Submission: 2025-07-29 20:26:22

UDP Spoofing 1

Time of First Successful Submission: 2025-07-29 20:32:37

UDP Spoofing 2

Time of First Successful Submission: 2025-07-29 20:38:12

UDP Spoofing 3

Time of First Successful Submission: 2025-07-29 21:10:55

UDP Spoofing 4

Time of First Successful Submission: 2025-07-29 21:15:19

ARP

Time of First Successful Submission: 2025-07-29 21:21:22

Intercept

Time of First Successful Submission: 2025-07-29 21:31:29

Man-in-the-Middle

Time of First Successful Submission: 2025-07-29 21:39:59

XOR

Time of First Successful Submission: 2025-09-15 20:09:20

XORing Hex

Time of First Successful Submission: 2025-09-15 20:23:24

XORing ASCII

Time of First Successful Submission: 2025-09-15 20:57:21

XORing ASCII Strings

Time of First Successful Submission: 2025-09-15 21:13:03

One-time Pad

Time of First Successful Submission: 2025-09-15 21:20:35

One-time Pad Tampering

Time of First Successful Submission: 2025-09-15 21:34:13

Many-time Pad

Time of First Successful Submission: 2025-09-15 21:44:02

AES

Time of First Successful Submission: 2025-09-15 22:04:54

AES-ECB-CPA

Time of First Successful Submission: 2025-09-16 19:31:48

AES-ECB-CPA-HTTP

Time of First Successful Submission: 2025-09-16 19:40:54

AES-ECB-CPA-HTTP (base64)

Time of First Successful Submission: 2025-09-16 21:27:54

AES-ECB-CPA-Suffix

Time of First Successful Submission: 2025-09-16 21:31:42

AES-ECB-CPA-Prefix

Time of First Successful Submission: 2025-09-16 21:35:33

AES-ECB-CPA-Prefix-2

Time of First Successful Submission: 2025-09-16 21:40:54

AES-CBC

Time of First Successful Submission: 2025-09-29 19:31:44

AES-CBC Tampering

Time of First Successful Submission: 2025-09-29 19:50:44

AES-CBC Resizing

Time of First Successful Submission: 2025-09-29 19:57:56

DHKE

Time of First Successful Submission: 2025-10-06 23:12:20

DHKE-to-AES

Time of First Successful Submission: 2025-10-06 23:30:08

RSA 1

Time of First Successful Submission: 2025-10-07 01:16:18

RSA 2

Time of First Successful Submission: 2025-10-07 01:46:51

RSA 3

Time of First Successful Submission: 2025-10-07 01:53:56

RSA 4

Time of First Successful Submission: 2025-10-07 02:34:42

SHA 1

Time of First Successful Submission: 2025-10-13 19:13:22

SHA 2

Time of First Successful Submission: 2025-10-13 19:14:55

TLS 1

Time of First Successful Submission: 2025-10-13 19:17:41

TLS 2

Time of First Successful Submission: 2025-10-13 19:19:44

level1

Time of First Successful Submission: 2025-08-11 18:29:05

level2

Time of First Successful Submission: 2025-08-11 18:31:17

level3

Time of First Successful Submission: 2025-08-11 18:32:25

level4

Time of First Successful Submission: 2025-08-11 18:35:15

level5

Time of First Successful Submission: 2025-08-11 18:57:17

level6

Time of First Successful Submission: 2025-08-11 19:09:52

level7

Time of First Successful Submission: 2025-08-11 19:16:12

level8

Time of First Successful Submission: 2025-08-11 19:20:04

level9

Time of First Successful Submission: 2025-08-11 19:22:14

level10

Time of First Successful Submission: 2025-08-11 19:23:41

level11

Time of First Successful Submission: 2025-08-11 19:26:21

level12

Time of First Successful Submission: 2025-08-11 19:32:28

level13

Time of First Successful Submission: 2025-08-11 19:48:47

level14

Time of First Successful Submission: 2025-08-11 19:50:22

level15

Time of First Successful Submission: 2025-08-11 19:51:15

level16

Time of First Successful Submission: 2025-08-11 19:53:19

level17

Time of First Successful Submission: 2025-08-11 19:54:27

level18

Time of First Successful Submission: 2025-08-11 19:55:22

level19

Time of First Successful Submission: 2025-08-11 19:57:12

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2025-10-13 21:41:46

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2025-10-13 21:47:53

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2025-10-16 01:15:42

Reading Endianness (Python)

Time of First Successful Submission: 2025-10-20 18:23:04

Reading Endianness (C)

Time of First Successful Submission: 2025-10-20 18:29:57

Reading Endianness (x86)

Time of First Successful Submission: 2025-10-20 18:33:41

Version Information (Python)

Time of First Successful Submission: 2025-10-20 18:44:45

Version Information (C)

Time of First Successful Submission: 2025-10-20 18:49:47

Version Information (x86)

Time of First Successful Submission: 2025-10-20 18:57:13

Metadata and Data (Python)

Time of First Successful Submission: 2025-10-20 19:47:39

Metadata and Data (C)

Time of First Successful Submission: 2025-10-20 19:25:06

Metadata and Data (x86)

Time of First Successful Submission: 2025-10-20 19:43:05

Input Restrictions (Python)

Time of First Successful Submission: 2025-10-20 20:00:23

Input Restrictions (C)

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

Input Restrictions (x86)

Time of First Successful Submission: 2025-10-20 20:26:44

Behold the cIMG! (Python)

Time of First Successful Submission: 2025-10-20 20:46:14

Behold the cIMG! (C)

Time of First Successful Submission: 2025-10-20 20:54:44

Behold the cIMG! (x86)

Time of First Successful Submission: 2025-10-21 18:02:35

A Basic cIMG (Python)

Time of First Successful Submission: 2025-10-21 17:48:02

A Basic cIMG (C)

Time of First Successful Submission: 2025-10-21 18:14:47

A Basic cIMG (x86)

Time of First Successful Submission: 2025-10-21 18:36:53

Internal State Mini (C)

Time of First Successful Submission: 2025-10-21 19:01:13

Internal State Mini (x86)

Time of First Successful Submission: 2025-10-21 19:14:25

Internal State (C)

Time of First Successful Submission: 2025-10-21 20:00:26

Internal State (x86)

Time of First Successful Submission: 2025-10-21 20:37:02

File Formats: Directives (C)

Time of First Successful Submission: 2025-10-21 21:04:38

File Formats: Directives (x86)

Time of First Successful Submission: 2025-10-21 21:24:28

Your First Overflow (easy)

Time of First Successful Submission: 2025-10-28 01:17:45

Your First Overflow (hard)

Time of First Successful Submission: 2025-10-28 01:49:32

Precision (easy)

Time of First Successful Submission: 2025-10-28 18:30:12

Precision (hard)

Time of First Successful Submission: 2025-10-28 19:02:42

Variable Control (easy)

Time of First Successful Submission: 2025-10-28 18:36:11

Variable Control (hard)

Time of First Successful Submission: 2025-10-28 19:05:35

Control Hijack (easy)

Time of First Successful Submission: 2025-10-28 18:45:14

Control Hijack (hard)

Time of First Successful Submission: 2025-10-28 19:09:25

Tricky Control Hijack (easy)

Time of First Successful Submission: 2025-10-28 18:54:05

Tricky Control Hijack (hard)

Time of First Successful Submission: 2025-10-28 19:14:26

PIEs (easy)

Time of First Successful Submission: 2025-11-03 21:41:06

PIEs (hard)

Time of First Successful Submission: 2025-11-03 21:58:40

String Lengths (easy)

Time of First Successful Submission: 2025-11-03 22:19:35

String Lengths (hard)

Time of First Successful Submission: 2025-11-03 22:26:23

Basic Shellcode

Time of First Successful Submission: 2025-11-04 20:55:07

NOP Sleds

Time of First Successful Submission: 2025-11-04 21:06:50

NULL-Free Shellcode

Time of First Successful Submission: 2025-11-04 21:35:41

Hijack to (Mapped) Shellcode (easy)

Time of First Successful Submission: 2025-11-10 22:06:18

Hijack to (Mapped) Shellcode (hard)

Time of First Successful Submission: 2025-11-11 19:50:00

Hijack to Shellcode (easy)

Time of First Successful Submission: 2025-11-11 03:26:06

Hijack to Shellcode (hard)

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

Start Here

11 / 12 1123 / 38117

Using the Terminal

Time of First Successful Submission: 2025-08-07 18:40:24

Using the VSCode Workspace

Time of First Successful Submission: 2025-03-31 06:24:20

Using the GUI Desktop

Time of First Successful Submission: 2025-06-02 20:18:26

Pasting into the Desktop

Time of First Successful Submission: 2025-06-02 20:20:53

Restarting Challenges

Time of First Successful Submission: 2025-06-02 20:22:51

Challenge Programs

Time of First Successful Submission: 2025-06-02 20:33:29

The Flag File

Time of First Successful Submission: 2025-06-02 20:40:46

Using Privileged Mode

Time of First Successful Submission: 2025-06-02 20:48:21

Persistent Home Directories - One

Time of First Successful Submission: 2025-06-02 20:56:47

Persistent Home Directories - Two

Time of First Successful Submission: 2025-06-02 21:01:00

Linux Luminarium

128 / 128 173 / 28127

Intro to Commands

Time of First Successful Submission: 2025-06-02 21:30:01

Intro to Arguments

Time of First Successful Submission: 2025-06-02 21:32:07

Command History

Time of First Successful Submission: 2025-06-08 03:20:31

The Root

Time of First Successful Submission: 2025-06-02 21:53:40

Program and absolute paths

Time of First Successful Submission: 2025-06-02 22:14:21

Position thy self

Time of First Successful Submission: 2025-06-02 22:16:15

Position elsewhere

Time of First Successful Submission: 2025-06-02 22:17:47

implicit relative paths, from /

Time of First Successful Submission: 2025-06-02 22:20:17

explicit relative paths, from /

Time of First Successful Submission: 2025-06-02 22:21:50

implicit relative path

Time of First Successful Submission: 2025-06-02 22:22:44

home sweet home

Time of First Successful Submission: 2025-06-02 22:30:17

cat: not the pet, but the command!

Time of First Successful Submission: 2025-06-02 22:41:54

catting absolute paths

Time of First Successful Submission: 2025-06-02 22:42:54

more catting practice

Time of First Successful Submission: 2025-06-02 22:43:48

grepping for a needle in a haystack

Time of First Successful Submission: 2025-06-02 22:45:09

comparing files

Time of First Successful Submission: 2025-07-28 07:17:40

listing files

Time of First Successful Submission: 2025-06-02 22:45:54

touching files

Time of First Successful Submission: 2025-06-02 22:48:50

removing files

Time of First Successful Submission: 2025-06-02 23:04:19

moving files

Time of First Successful Submission: 2025-06-05 04:14:40

copying files

Time of First Successful Submission: 2025-11-09 06:21:28

hidden files

Time of First Successful Submission: 2025-06-02 23:05:18

An Epic Filesystem Quest

Time of First Successful Submission: 2025-06-02 23:12:28

making directories

Time of First Successful Submission: 2025-06-02 23:14:29

finding files

Time of First Successful Submission: 2025-06-02 23:23:13

linking files

Time of First Successful Submission: 2025-06-02 23:28:06

Learning From Documentation

Time of First Successful Submission: 2025-06-03 21:51:26

Learning Complex Usage

Time of First Successful Submission: 2025-06-03 21:53:20

Reading Manuals

Time of First Successful Submission: 2025-06-03 21:57:04

Searching Manuals

Time of First Successful Submission: 2025-06-03 21:59:10

Searching For Manuals

Time of First Successful Submission: 2025-06-03 22:07:51

Helpful Programs

Time of First Successful Submission: 2025-06-03 22:12:07

Help for Builtins

Time of First Successful Submission: 2025-06-03 22:18:09

Matching with *

Time of First Successful Submission: 2025-06-03 22:24:16

Matching with ?

Time of First Successful Submission: 2025-06-03 22:25:51

Matching with []

Time of First Successful Submission: 2025-06-03 22:27:45

Matching paths with []

Time of First Successful Submission: 2025-06-03 22:29:45

Multiple globs

Time of First Successful Submission: 2025-06-03 22:32:06

Mixing globs

Time of First Successful Submission: 2025-06-03 22:39:38

Exclusionary globbing

Time of First Successful Submission: 2025-06-03 22:42:22

Tab completion

Time of First Successful Submission: 2025-06-08 03:23:33

Multiple options for tab completion

Time of First Successful Submission: 2025-06-08 03:28:28

Tab completion on commands

Time of First Successful Submission: 2025-06-08 03:29:01

Redirecting output

Time of First Successful Submission: 2025-06-03 22:45:58

Redirecting more output

Time of First Successful Submission: 2025-06-03 22:47:36

Appending output

Time of First Successful Submission: 2025-06-03 22:57:00

Redirecting errors

Time of First Successful Submission: 2025-06-03 23:01:30

Redirecting input

Time of First Successful Submission: 2025-06-03 23:05:13

Grepping stored results

Time of First Successful Submission: 2025-06-03 23:09:08

Grepping live output

Time of First Successful Submission: 2025-06-03 23:09:57

Grepping errors

Time of First Successful Submission: 2025-06-03 23:12:35

Filtering with grep -v

Time of First Successful Submission: 2025-06-05 04:16:44

Filtering with sed

Time of First Successful Submission: 2025-11-09 06:20:07

Duplicating piped data with tee

Time of First Successful Submission: 2025-06-03 23:16:06

Process substitution for input

Time of First Successful Submission: 2025-07-28 07:22:41

Writing to multiple programs

Time of First Successful Submission: 2025-06-03 23:23:37

Split-piping stderr and stdout

Time of First Successful Submission: 2025-06-03 23:30:57

Named pipes

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

Printing Variables

Time of First Successful Submission: 2025-06-09 20:36:43

Setting Variables

Time of First Successful Submission: 2025-06-09 20:38:36

Multi-word Variables

Time of First Successful Submission: 2025-06-09 20:43:20

Exporting Variables

Time of First Successful Submission: 2025-06-09 20:47:43

Printing Exported Variables

Time of First Successful Submission: 2025-06-09 20:48:51

Storing Command Output

Time of First Successful Submission: 2025-06-09 20:55:18

Reading Input

Time of First Successful Submission: 2025-06-09 21:03:38

Reading Files

Time of First Successful Submission: 2025-06-09 21:06:55

Translating characters

Time of First Successful Submission: 2025-06-09 21:22:22

Deleting characters

Time of First Successful Submission: 2025-06-09 21:24:24

Deleting newlines

Time of First Successful Submission: 2025-06-09 21:28:43

Extracting the first lines with head

Time of First Successful Submission: 2025-06-09 21:29:46

Extracting specific sections of text

Time of First Successful Submission: 2025-06-09 21:45:57

Sorting data

Time of First Successful Submission: 2025-07-28 07:33:16

Listing Processes

Time of First Successful Submission: 2025-06-09 22:06:12

Killing Processes

Time of First Successful Submission: 2025-06-09 22:10:17

Interrupting Processes

Time of First Successful Submission: 2025-06-09 22:10:53

Killing Misbehaving Processes

Time of First Successful Submission: 2025-07-28 07:37:16

Suspending Processes

Time of First Successful Submission: 2025-06-09 22:16:35

Resuming Processes

Time of First Successful Submission: 2025-06-09 22:23:27

Backgrounding Processes

Time of First Successful Submission: 2025-06-09 22:31:34

Foregrounding Processes

Time of First Successful Submission: 2025-06-09 22:35:51

Starting Backgrounded Processes

Time of First Successful Submission: 2025-06-09 22:36:59

Process Exit Codes

Time of First Successful Submission: 2025-06-09 22:38:28

Becoming root with su

Time of First Successful Submission: 2025-06-10 00:04:03

Other users with su

Time of First Successful Submission: 2025-06-10 00:04:57

Cracking passwords

Time of First Successful Submission: 2025-06-10 00:18:20

Using sudo

Time of First Successful Submission: 2025-06-10 00:29:16

Changing File Ownership

Time of First Successful Submission: 2025-06-09 22:57:15

Groups and Files

Time of First Successful Submission: 2025-06-09 23:03:47

Fun With Groups Names

Time of First Successful Submission: 2025-06-09 23:04:53

Changing Permissions

Time of First Successful Submission: 2025-06-09 23:09:46

Executable Files

Time of First Successful Submission: 2025-06-09 23:13:17

Permission Tweaking Practice

Time of First Successful Submission: 2025-06-09 23:30:11

Permissions Setting Practice

Time of First Successful Submission: 2025-06-09 23:39:15

The SUID Bit

Time of First Successful Submission: 2025-06-09 23:44:39

Chaining with Semicolons

Time of First Successful Submission: 2025-06-10 00:34:29

Building on Success

Time of First Successful Submission: 2025-07-28 07:42:48

Handling Failure

Time of First Successful Submission: 2025-07-28 07:46:50

Your First Shell Script

Time of First Successful Submission: 2025-06-10 00:39:14

Redirecting Script Output

Time of First Successful Submission: 2025-06-10 00:43:34

Executable Shell Scripts

Time of First Successful Submission: 2025-06-10 00:47:04

Understanding Shebangs

Time of First Successful Submission: 2025-07-28 07:49:15

Scripting with Arguments

Time of First Successful Submission: 2025-07-28 07:50:31

Scripting with Conditionals

Time of First Successful Submission: 2025-07-28 07:59:13

Scripting with Default Cases

Time of First Successful Submission: 2025-07-28 08:00:40

Scripting with Multiple Conditions

Time of First Successful Submission: 2025-07-28 08:03:47

Reading Shell Scripts

Time of First Successful Submission: 2025-08-25 19:12:20

Launching Screen

Time of First Successful Submission: 2025-07-28 08:05:18

Detaching and Attaching

Time of First Successful Submission: 2025-07-28 08:08:47

Finding Sessions

Time of First Successful Submission: 2025-07-28 08:12:34

Switching Windows

Time of First Successful Submission: 2025-07-28 08:13:38

Detaching and Attaching (tmux)

Time of First Successful Submission: 2025-07-28 08:16:25

Switching Windows (tmux)

Time of First Successful Submission: 2025-07-28 08:21:26

The PATH Variable

Time of First Successful Submission: 2025-06-10 01:37:55

Setting PATH

Time of First Successful Submission: 2025-06-10 01:39:33

Finding Commands

Time of First Successful Submission: 2025-06-10 01:41:08

Adding Commands

Time of First Successful Submission: 2025-06-10 01:57:41

Hijacking Commands

Time of First Successful Submission: 2025-06-10 02:05:14

Bashrc Backdoor

Time of First Successful Submission: 2025-06-10 18:38:53

Sniffing Input

Time of First Successful Submission: 2025-06-10 18:51:32

Overshared Directories

Time of First Successful Submission: 2025-06-10 19:03:36

Tricky Linking

Time of First Successful Submission: 2025-06-10 19:10:38

Sniffing Process Arguments

Time of First Successful Submission: 2025-06-10 19:12:41

Snooping on Configurations

Time of First Successful Submission: 2025-06-10 19:26:12

The Fork Bomb

Time of First Successful Submission: 2025-06-10 19:48:33

Disk-Space Doomsday

Time of First Successful Submission: 2025-06-10 19:40:23

rm -rf /

Time of First Successful Submission: 2025-06-10 19:44:32

Life after rm -rf /

Time of First Successful Submission: 2025-06-10 19:46:45

Finding meaning after rm -rf /

Time of First Successful Submission: 2025-06-10 19:48:26

Computing 101

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Your First Register

Time of First Successful Submission: 2025-06-17 20:34:18

Your First Syscall

Time of First Successful Submission: 2025-06-17 20:39:57

Exit Codes

Time of First Successful Submission: 2025-06-17 20:44:02

Building Executables

Time of First Successful Submission: 2025-06-17 21:03:08

Moving Between Registers

Time of First Successful Submission: 2025-06-17 21:07:46

Tracing Syscalls

Time of First Successful Submission: 2025-06-17 21:40:14

Starting GDB

Time of First Successful Submission: 2025-06-17 21:41:30

Starting Programs in GDB

Time of First Successful Submission: 2025-06-17 21:42:47

Loading From Memory

Time of First Successful Submission: 2025-06-17 22:22:33

More Loading Practice

Time of First Successful Submission: 2025-06-17 22:23:35

Dereferencing Pointers

Time of First Successful Submission: 2025-06-17 22:27:25

Dereferencing Yourself

Time of First Successful Submission: 2025-06-17 22:28:40

Dereferencing with Offsets

Time of First Successful Submission: 2025-06-17 22:31:19

Stored Addresses

Time of First Successful Submission: 2025-06-17 22:35:59

Double Dereference

Time of First Successful Submission: 2025-06-17 22:38:41

Triple Dereference

Time of First Successful Submission: 2025-06-17 22:40:47

Writing Output

Time of First Successful Submission: 2025-06-17 23:04:09

Chaining Syscalls

Time of First Successful Submission: 2025-06-17 23:05:40

Writing Strings

Time of First Successful Submission: 2025-06-17 23:10:53

Reading Data

Time of First Successful Submission: 2025-06-17 23:27:19

set-register

Time of First Successful Submission: 2025-06-18 00:08:19

set-multiple-registers

Time of First Successful Submission: 2025-06-18 00:10:01

add-to-register

Time of First Successful Submission: 2025-06-18 00:13:41

linear-equation-registers

Time of First Successful Submission: 2025-06-18 00:17:47

integer-division

Time of First Successful Submission: 2025-06-18 00:22:04

modulo-operation

Time of First Successful Submission: 2025-06-18 00:23:19

set-upper-byte

Time of First Successful Submission: 2025-06-18 00:26:33

efficient-modulo

Time of First Successful Submission: 2025-06-18 00:32:35

byte-extraction

Time of First Successful Submission: 2025-06-18 00:39:33

bitwise-and

Time of First Successful Submission: 2025-06-18 00:43:26

check-even

Time of First Successful Submission: 2025-06-18 00:53:27

memory-read

Time of First Successful Submission: 2025-06-19 21:23:52

memory-write

Time of First Successful Submission: 2025-06-19 21:25:08

memory-increment

Time of First Successful Submission: 2025-06-19 21:30:36

byte-access

Time of First Successful Submission: 2025-06-19 21:39:30

memory-size-access

Time of First Successful Submission: 2025-06-19 21:42:21

little-endian-write

Time of First Successful Submission: 2025-06-19 21:48:04

memory-sum

Time of First Successful Submission: 2025-06-19 22:03:11

stack-subtraction

Time of First Successful Submission: 2025-06-19 22:09:53

swap-stack-values

Time of First Successful Submission: 2025-06-19 22:13:51

average-stack-values

Time of First Successful Submission: 2025-06-19 22:43:38

absolute-jump

Time of First Successful Submission: 2025-06-23 18:07:40

relative-jump

Time of First Successful Submission: 2025-06-23 18:13:13

jump-trampoline

Time of First Successful Submission: 2025-06-23 18:18:53

conditional-jump

Time of First Successful Submission: 2025-06-23 18:43:09

indirect-jump

Time of First Successful Submission: 2025-06-23 19:16:28

average-loop

Time of First Successful Submission: 2025-06-23 19:28:11

count-non-zero

Time of First Successful Submission: 2025-06-23 19:37:48

string-lower

Time of First Successful Submission: 2025-06-23 20:43:54

most-common-byte

Time of First Successful Submission: 2025-06-23 20:54:29

Debugging Programs

Time of First Successful Submission: 2025-06-23 21:01:43

Inspecting Registers

Time of First Successful Submission: 2025-06-23 21:05:13

Examining Memory

Time of First Successful Submission: 2025-06-23 21:20:50

Setting Breakpoints

Time of First Successful Submission: 2025-06-23 23:19:33

GDB Scripting

Time of First Successful Submission: 2025-06-24 00:17:54

Modifying Data

Time of First Successful Submission: 2025-06-24 00:43:47

Modifying Execution

Time of First Successful Submission: 2025-06-24 01:48:51

Broken Functions

Time of First Successful Submission: 2025-06-24 02:06:24

Exit

Time of First Successful Submission: 2025-06-30 18:55:35

Socket

Time of First Successful Submission: 2025-06-30 19:01:36

Bind

Time of First Successful Submission: 2025-06-30 19:18:21

Listen

Time of First Successful Submission: 2025-06-30 19:22:44

Accept

Time of First Successful Submission: 2025-06-30 19:28:30

Static Response

Time of First Successful Submission: 2025-06-30 19:48:51

Dynamic Response

Time of First Successful Submission: 2025-06-30 20:54:32

Iterative GET Server

Time of First Successful Submission: 2025-06-30 21:00:48

Concurrent GET Server

Time of First Successful Submission: 2025-06-30 20:46:31

Concurrent POST Server

Time of First Successful Submission: 2025-06-30 20:46:03

Web Server

Time of First Successful Submission: 2025-06-30 20:44:54

Playing With Programs

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What's the password?

Time of First Successful Submission: 2025-07-01 20:31:56

... and again!

Time of First Successful Submission: 2025-07-01 20:32:37

Newline Troubles

Time of First Successful Submission: 2025-07-01 20:35:36

Reasoning about files

Time of First Successful Submission: 2025-07-01 20:41:19

Specifying Filenames

Time of First Successful Submission: 2025-07-01 20:42:50

Binary and Hex Encoding

Time of First Successful Submission: 2025-07-01 20:53:54

More Hex

Time of First Successful Submission: 2025-07-01 20:55:43

Decoding Hex

Time of First Successful Submission: 2025-07-01 21:01:42

Decoding Practice

Time of First Successful Submission: 2025-07-01 21:04:16

Encoding Practice

Time of First Successful Submission: 2025-07-01 21:07:20

Hex-encoding ASCII

Time of First Successful Submission: 2025-07-01 21:34:39

Nested Encoding

Time of First Successful Submission: 2025-07-01 21:40:58

Hex-encoding UTF-8

Time of First Successful Submission: 2025-07-01 21:50:51

UTF Mixups

Time of First Successful Submission: 2025-07-01 22:25:57

Modifying Encoded Data

Time of First Successful Submission: 2025-07-01 22:40:01

Decoding Base64

Time of First Successful Submission: 2025-07-01 23:01:24

Encoding Base64

Time of First Successful Submission: 2025-07-01 23:07:44

Dealing with Obfuscation

Time of First Successful Submission: 2025-07-01 23:30:26

Dealing with Obfuscation 2

Time of First Successful Submission: 2025-07-01 23:37:18

Your First HTTP Request

Time of First Successful Submission: 2025-07-07 19:54:26

Reading Flask

Time of First Successful Submission: 2025-07-08 20:46:11

Commented Data

Time of First Successful Submission: 2025-07-08 20:51:25

HTTP Metadata

Time of First Successful Submission: 2025-07-08 20:54:53

HTTP (netcat)

Time of First Successful Submission: 2025-07-08 20:57:53

HTTP Paths (netcat)

Time of First Successful Submission: 2025-07-08 21:03:53

HTTP (curl)

Time of First Successful Submission: 2025-07-08 21:04:49

HTTP (python)

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

HTTP Host Header (python)

Time of First Successful Submission: 2025-07-08 21:17:44

HTTP Host Header (curl)

Time of First Successful Submission: 2025-07-08 21:21:19

HTTP Host Header (netcat)

Time of First Successful Submission: 2025-07-08 21:23:01

URL Encoding (netcat)

Time of First Successful Submission: 2025-07-08 21:26:11

HTTP GET Parameters

Time of First Successful Submission: 2025-07-08 21:28:48

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2025-07-08 21:31:36

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2025-07-08 21:34:49

HTTP Forms

Time of First Successful Submission: 2025-07-08 21:36:58

HTTP Forms (curl)

Time of First Successful Submission: 2025-07-08 21:41:13

HTTP Forms (netcat)

Time of First Successful Submission: 2025-07-08 21:46:11

HTTP Forms (python)

Time of First Successful Submission: 2025-07-08 21:51:08

HTTP Forms Without Forms

Time of First Successful Submission: 2025-07-08 22:03:27

Multiple Form Fields (curl)

Time of First Successful Submission: 2025-07-08 22:06:09

Multiple Form Fields (netcat)

Time of First Successful Submission: 2025-07-08 22:11:47

HTTP Redirects (netcat)

Time of First Successful Submission: 2025-07-08 22:14:51

HTTP Redirects (curl)

Time of First Successful Submission: 2025-07-08 22:16:31

HTTP Redirects (python)

Time of First Successful Submission: 2025-07-08 22:18:07

HTTP Cookies (curl)

Time of First Successful Submission: 2025-07-11 04:13:40

HTTP Cookies (netcat)

Time of First Successful Submission: 2025-07-11 04:15:09

HTTP Cookies (python)

Time of First Successful Submission: 2025-07-11 04:19:54

Server State (python)

Time of First Successful Submission: 2025-07-11 04:21:16

Listening Web

Time of First Successful Submission: 2025-07-11 04:33:30

Speaking Redirects

Time of First Successful Submission: 2025-07-11 04:56:53

JavaScript Redirects

Time of First Successful Submission: 2025-07-11 05:11:53

Including JavaScript

Time of First Successful Submission: 2025-07-11 05:27:59

HTTP (javascript)

Time of First Successful Submission: 2025-07-11 06:04:10

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2025-07-11 06:06:51

HTTP Forms (javascript)

Time of First Successful Submission: 2025-07-11 06:14:19

cat

Time of First Successful Submission: 2025-07-12 05:32:04

more

Time of First Successful Submission: 2025-07-12 05:32:25

less

Time of First Successful Submission: 2025-07-12 05:33:04

tail

Time of First Successful Submission: 2025-07-12 05:33:26

head

Time of First Successful Submission: 2025-07-12 05:33:48

sort

Time of First Successful Submission: 2025-07-12 05:34:29

vim

Time of First Successful Submission: 2025-07-12 05:34:57

emacs

Time of First Successful Submission: 2025-07-12 05:48:02

nano

Time of First Successful Submission: 2025-07-12 05:49:09

rev

Time of First Successful Submission: 2025-07-12 05:49:35

od

Time of First Successful Submission: 2025-07-12 05:52:01

hd

Time of First Successful Submission: 2025-07-12 05:56:04

xxd

Time of First Successful Submission: 2025-07-12 05:56:40

base32

Time of First Successful Submission: 2025-07-12 05:57:47

base64

Time of First Successful Submission: 2025-07-12 05:58:15

split

Time of First Successful Submission: 2025-07-12 06:01:29

gzip

Time of First Successful Submission: 2025-07-12 06:05:53

bzip2

Time of First Successful Submission: 2025-07-14 19:25:36

zip

Time of First Successful Submission: 2025-07-14 19:30:57

tar

Time of First Successful Submission: 2025-07-14 19:32:24

ar

Time of First Successful Submission: 2025-07-14 19:36:09

cpio

Time of First Successful Submission: 2025-07-14 19:39:29

genisoimage

Time of First Successful Submission: 2025-07-14 19:46:45

env

Time of First Successful Submission: 2025-07-14 19:47:13

find

Time of First Successful Submission: 2025-07-14 19:48:58

make

Time of First Successful Submission: 2025-07-14 19:51:46

nice

Time of First Successful Submission: 2025-07-14 19:53:47

timeout

Time of First Successful Submission: 2025-07-14 19:56:45

stdbuf

Time of First Successful Submission: 2025-07-14 19:58:41

setarch

Time of First Successful Submission: 2025-07-14 20:01:52

watch

Time of First Successful Submission: 2025-07-14 20:04:02

socat

Time of First Successful Submission: 2025-07-14 20:10:25

whiptail

Time of First Successful Submission: 2025-07-14 20:12:23

awk

Time of First Successful Submission: 2025-07-14 20:13:10

sed

Time of First Successful Submission: 2025-07-14 20:13:44

ed

Time of First Successful Submission: 2025-07-14 20:14:33

chown

Time of First Successful Submission: 2025-07-14 20:16:18

chmod

Time of First Successful Submission: 2025-07-14 20:16:48

cp

Time of First Successful Submission: 2025-07-14 20:21:34

mv

Time of First Successful Submission: 2025-07-14 20:22:22

perl

Time of First Successful Submission: 2025-07-14 20:25:19

python

Time of First Successful Submission: 2025-07-14 20:26:22

ruby

Time of First Successful Submission: 2025-07-14 20:27:32

bash

Time of First Successful Submission: 2025-07-14 20:29:03

date

Time of First Successful Submission: 2025-07-14 20:29:32

dmesg

Time of First Successful Submission: 2025-07-14 20:29:58

wc

Time of First Successful Submission: 2025-07-14 20:30:27

gcc

Time of First Successful Submission: 2025-07-14 20:32:24

as

Time of First Successful Submission: 2025-07-14 20:32:46

wget

Time of First Successful Submission: 2025-07-14 20:59:43

ssh-keygen

Time of First Successful Submission: 2025-07-14 20:42:24

SQL Queries

Time of First Successful Submission: 2025-07-15 19:52:58

Filtering SQL

Time of First Successful Submission: 2025-07-15 20:00:52

Choosing Columns

Time of First Successful Submission: 2025-07-15 20:03:09

Exclusionary Filtering

Time of First Successful Submission: 2025-07-15 20:05:48

Filtering Strings

Time of First Successful Submission: 2025-07-15 20:08:26

Filtering on Expressions

Time of First Successful Submission: 2025-07-15 20:12:52

SELECTing Expressions

Time of First Successful Submission: 2025-07-15 20:27:06

Composite Conditions

Time of First Successful Submission: 2025-07-15 20:34:41

Reaching Your LIMITs

Time of First Successful Submission: 2025-07-15 20:39:31

Querying Metadata

Time of First Successful Submission: 2025-07-15 20:45:05

CybHer Dojo

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Using the Terminal

Time of First Successful Submission: 2025-08-07 18:40:24

Using the VSCode Workspace

Time of First Successful Submission: 2025-03-31 06:24:20

Using the GUI Desktop

Time of First Successful Submission: 2025-06-02 20:18:26

Pasting into the Desktop

Time of First Successful Submission: 2025-06-02 20:20:53

Restarting Challenges

Time of First Successful Submission: 2025-06-02 20:22:51

Getting Help

Time of First Successful Submission: 2025-06-02 20:25:43

Challenge Programs

Time of First Successful Submission: 2025-06-02 20:33:29

The Flag File

Time of First Successful Submission: 2025-06-02 20:40:46

Using Privileged Mode

Time of First Successful Submission: 2025-06-02 20:48:21

Persistent Home Directories - One

Time of First Successful Submission: 2025-06-02 20:56:47

Persistent Home Directories - Two

Time of First Successful Submission: 2025-06-02 21:01:00

GCA CTF

11 / 104 1279 / 38331

Using the Terminal

Time of First Successful Submission: 2025-08-07 18:40:24

Using the VSCode Workspace

Time of First Successful Submission: 2025-03-31 06:24:20

Using the GUI Desktop

Time of First Successful Submission: 2025-06-02 20:18:26

Pasting into the Desktop

Time of First Successful Submission: 2025-06-02 20:20:53

Restarting Challenges

Time of First Successful Submission: 2025-06-02 20:22:51

Getting Help

Time of First Successful Submission: 2025-06-02 20:25:43

Challenge Programs

Time of First Successful Submission: 2025-06-02 20:33:29

The Flag File

Time of First Successful Submission: 2025-06-02 20:40:46

Using Privileged Mode

Time of First Successful Submission: 2025-06-02 20:48:21

Persistent Home Directories - One

Time of First Successful Submission: 2025-06-02 20:56:47

Persistent Home Directories - Two

Time of First Successful Submission: 2025-06-02 21:01:00