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Triple Dereference

Time of First Successful Submission: 2025-11-17 20:12:55

Intro to Programming Languages

15 / 234 6192 / 31864

Commands

Time of First Successful Submission: 2025-08-27 06:00:06

Command Arguments

Time of First Successful Submission: 2025-08-27 06:02:33

Command History

Time of First Successful Submission: 2025-08-27 06:03:39

The Root Path

Time of First Successful Submission: 2025-08-27 19:09:53

Absolute Paths

Time of First Successful Submission: 2025-08-27 19:11:47

Changing position

Time of First Successful Submission: 2025-08-27 19:14:20

Changing to an Absolute Path

Time of First Successful Submission: 2025-08-27 19:31:44

Relative Paths

Time of First Successful Submission: 2025-08-28 07:48:18

Cat

Time of First Successful Submission: 2025-08-28 20:05:23

Ls

Time of First Successful Submission: 2025-08-28 22:29:15

Ls All

Time of First Successful Submission: 2025-08-28 23:53:27

Find

Time of First Successful Submission: 2025-08-29 04:37:35

Piping Echo

Time of First Successful Submission: 2025-11-19 10:44:45

Piping Stdout

Time of First Successful Submission: 2025-11-19 10:46:52

Piping Stdin

Time of First Successful Submission: 2025-11-19 11:01:13

Intro to Cybersecurity

147 / 183 608 / 19990

Path Traversal 1

Time of First Successful Submission: 2025-11-08 22:31:12

Path Traversal 2

Time of First Successful Submission: 2025-11-11 05:32:06

CMDi 1

Time of First Successful Submission: 2025-11-11 13:05:54

CMDi 2

Time of First Successful Submission: 2025-11-11 22:53:34

CMDi 3

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

CMDi 4

Time of First Successful Submission: 2025-11-11 23:00:10

CMDi 5

Time of First Successful Submission: 2025-11-12 00:14:48

Authentication Bypass 1

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

Authentication Bypass 2

Time of First Successful Submission: 2025-11-11 18:23:44

SQLi 1

Time of First Successful Submission: 2025-11-11 18:29:39

SQLi 2

Time of First Successful Submission: 2025-11-11 18:34:31

SQLi 3

Time of First Successful Submission: 2025-11-11 19:03:49

SQLi 4

Time of First Successful Submission: 2025-11-11 19:09:50

SQLi 5

Time of First Successful Submission: 2025-11-11 19:53:49

XSS 1

Time of First Successful Submission: 2025-11-11 20:10:59

XSS 2

Time of First Successful Submission: 2025-11-11 20:14:29

XSS 3

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

XSS 4

Time of First Successful Submission: 2025-11-11 20:23:21

XSS 5

Time of First Successful Submission: 2025-11-11 20:28:32

XSS 6

Time of First Successful Submission: 2025-11-11 20:32:55

XSS 7

Time of First Successful Submission: 2025-11-11 21:55:44

CSRF 1

Time of First Successful Submission: 2025-11-11 22:27:33

CSRF 2

Time of First Successful Submission: 2025-11-11 22:29:49

CSRF 3

Time of First Successful Submission: 2025-11-11 22:43:00

CSRF 4

Time of First Successful Submission: 2025-11-11 22:46:43

CSRF 5

Time of First Successful Submission: 2025-11-11 22:49:13

Connect

Time of First Successful Submission: 2025-11-13 17:30:41

Send

Time of First Successful Submission: 2025-11-13 17:33:54

Shutdown

Time of First Successful Submission: 2025-11-13 17:38:21

Listen

Time of First Successful Submission: 2025-11-13 17:40:24

Scan 1

Time of First Successful Submission: 2025-11-13 18:17:41

Scan 2

Time of First Successful Submission: 2025-11-13 18:21:43

Monitor 1

Time of First Successful Submission: 2025-11-13 18:25:02

Monitor 2

Time of First Successful Submission: 2025-11-14 12:54:23

Sniffing Cookies

Time of First Successful Submission: 2025-11-14 13:26:37

Network Configuration

Time of First Successful Submission: 2025-11-13 20:10:03

Firewall 1

Time of First Successful Submission: 2025-11-13 20:11:34

Firewall 2

Time of First Successful Submission: 2025-11-13 20:16:15

Firewall 3

Time of First Successful Submission: 2025-11-13 20:19:15

Denial of Service 1

Time of First Successful Submission: 2025-11-14 02:32:50

Denial of Service 2

Time of First Successful Submission: 2025-11-14 02:35:13

Denial of Service 3

Time of First Successful Submission: 2025-11-14 13:48:14

Ethernet

Time of First Successful Submission: 2025-11-14 06:27:56

IP

Time of First Successful Submission: 2025-11-14 06:30:09

TCP

Time of First Successful Submission: 2025-11-14 06:34:31

TCP Handshake

Time of First Successful Submission: 2025-11-14 06:37:18

UDP

Time of First Successful Submission: 2025-11-14 06:58:05

UDP 2

Time of First Successful Submission: 2025-11-14 07:01:04

UDP Spoofing 1

Time of First Successful Submission: 2025-11-14 07:03:23

UDP Spoofing 2

Time of First Successful Submission: 2025-11-14 07:09:29

UDP Spoofing 3

Time of First Successful Submission: 2025-11-14 07:13:59

UDP Spoofing 4

Time of First Successful Submission: 2025-11-14 07:22:16

ARP

Time of First Successful Submission: 2025-11-14 07:24:49

Intercept

Time of First Successful Submission: 2025-11-14 08:03:46

Man-in-the-Middle

Time of First Successful Submission: 2025-11-15 08:20:51

XOR

Time of First Successful Submission: 2025-12-04 15:52:35

XORing Hex

Time of First Successful Submission: 2025-12-04 16:06:13

XORing ASCII

Time of First Successful Submission: 2025-12-08 16:16:57

XORing ASCII Strings

Time of First Successful Submission: 2025-12-08 16:25:39

One-time Pad

Time of First Successful Submission: 2025-12-08 16:31:17

One-time Pad Tampering

Time of First Successful Submission: 2025-12-05 08:54:48

Many-time Pad

Time of First Successful Submission: 2025-12-05 08:59:03

AES

Time of First Successful Submission: 2025-12-05 09:01:59

AES-ECB-CPA

Time of First Successful Submission: 2025-12-05 14:03:38

AES-ECB-CPA-HTTP

Time of First Successful Submission: 2025-12-05 14:08:43

AES-ECB-CPA-HTTP (base64)

Time of First Successful Submission: 2025-12-05 14:13:02

AES-ECB-CPA-Suffix

Time of First Successful Submission: 2025-12-05 14:17:20

AES-ECB-CPA-Prefix

Time of First Successful Submission: 2025-12-05 14:21:25

AES-ECB-CPA-Prefix-2

Time of First Successful Submission: 2025-12-05 14:24:51

AES-ECB-CPA-Prefix-Miniboss

Time of First Successful Submission: 2025-12-05 14:33:28

AES-ECB-CPA-Prefix-Boss

Time of First Successful Submission: 2025-12-08 15:50:12

AES-CBC

Time of First Successful Submission: 2025-12-05 13:07:10

AES-CBC Tampering

Time of First Successful Submission: 2025-12-05 13:14:24

AES-CBC Resizing

Time of First Successful Submission: 2025-12-05 13:19:33

AES-CBC-POA-Partial-Block

Time of First Successful Submission: 2025-12-08 15:57:54

AES-CBC-POA-Full-Block

Time of First Successful Submission: 2025-12-08 16:02:53

AES-CBC-POA-Multi-Block

Time of First Successful Submission: 2025-12-08 16:07:10

AES-CBC-POA-Encrypt

Time of First Successful Submission: 2025-12-05 18:15:35

AES-CBC-POA-Encrypt-2

Time of First Successful Submission: 2025-12-08 15:14:09

DHKE

Time of First Successful Submission: 2025-12-05 10:42:23

DHKE-to-AES

Time of First Successful Submission: 2025-12-05 10:49:03

RSA 1

Time of First Successful Submission: 2025-12-05 10:54:34

RSA 2

Time of First Successful Submission: 2025-12-05 10:57:29

RSA 3

Time of First Successful Submission: 2025-12-05 11:00:33

RSA 4

Time of First Successful Submission: 2025-12-05 11:15:22

RSA Signatures

Time of First Successful Submission: 2025-12-05 11:30:42

SHA 1

Time of First Successful Submission: 2025-12-05 11:57:18

SHA 2

Time of First Successful Submission: 2025-12-05 12:06:36

TLS 1

Time of First Successful Submission: 2025-12-05 12:38:41

TLS 2

Time of First Successful Submission: 2025-12-05 12:58:47

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2025-11-23 19:44:09

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2025-11-23 20:02:55

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2025-11-24 03:44:10

Reading Endianness (Python)

Time of First Successful Submission: 2025-11-24 03:49:00

Reading Endianness (C)

Time of First Successful Submission: 2025-11-24 03:52:25

Reading Endianness (x86)

Time of First Successful Submission: 2025-11-24 03:55:38

Version Information (Python)

Time of First Successful Submission: 2025-11-24 03:58:45

Version Information (C)

Time of First Successful Submission: 2025-11-24 04:02:42

Version Information (x86)

Time of First Successful Submission: 2025-11-24 04:05:23

Metadata and Data (Python)

Time of First Successful Submission: 2025-11-24 04:08:26

Metadata and Data (C)

Time of First Successful Submission: 2025-11-24 04:10:42

Metadata and Data (x86)

Time of First Successful Submission: 2025-11-24 04:14:16

Input Restrictions (Python)

Time of First Successful Submission: 2025-11-24 04:17:10

Input Restrictions (C)

Time of First Successful Submission: 2025-11-24 04:20:07

Input Restrictions (x86)

Time of First Successful Submission: 2025-11-24 04:23:11

Behold the cIMG! (Python)

Time of First Successful Submission: 2025-11-24 04:26:36

Behold the cIMG! (C)

Time of First Successful Submission: 2025-11-24 04:32:59

Behold the cIMG! (x86)

Time of First Successful Submission: 2025-11-24 04:43:01

A Basic cIMG (Python)

Time of First Successful Submission: 2025-11-24 04:48:57

A Basic cIMG (C)

Time of First Successful Submission: 2025-11-24 04:53:25

A Basic cIMG (x86)

Time of First Successful Submission: 2025-11-24 04:57:58

Internal State Mini (C)

Time of First Successful Submission: 2025-11-24 05:08:04

Internal State Mini (x86)

Time of First Successful Submission: 2025-11-24 05:13:16

Internal State (C)

Time of First Successful Submission: 2025-11-24 05:44:26

Internal State (x86)

Time of First Successful Submission: 2025-11-24 05:52:39

File Formats: Directives (C)

Time of First Successful Submission: 2025-11-24 05:57:16

File Formats: Directives (x86)

Time of First Successful Submission: 2025-11-25 09:22:22

The Patch Directive

Time of First Successful Submission: 2025-12-09 00:30:13

Tweaking Images

Time of First Successful Submission: 2025-11-28 21:41:29

Extracting Knowledge

Time of First Successful Submission: 2025-11-30 13:33:07

Accessing Resources

Time of First Successful Submission: 2025-11-29 17:49:30

Unsafe Animations

Time of First Successful Submission: 2025-11-29 18:41:40

Animations

Time of First Successful Submission: 2025-11-30 00:07:40

Interoperability: Patching Data

Time of First Successful Submission: 2025-11-25 17:15:28

Patching Code

Time of First Successful Submission: 2025-11-25 17:31:29

Patching Control Flow

Time of First Successful Submission: 2025-11-25 18:00:37

Your First Overflow (easy)

Time of First Successful Submission: 2025-11-18 12:22:08

Your First Overflow (hard)

Time of First Successful Submission: 2025-11-18 12:26:11

Precision (easy)

Time of First Successful Submission: 2025-11-18 14:56:55

Precision (hard)

Time of First Successful Submission: 2025-11-18 15:03:54

Variable Control (easy)

Time of First Successful Submission: 2025-11-18 15:10:58

Variable Control (hard)

Time of First Successful Submission: 2025-11-18 15:22:21

Control Hijack (easy)

Time of First Successful Submission: 2025-11-18 15:29:51

Control Hijack (hard)

Time of First Successful Submission: 2025-11-18 15:34:51

Tricky Control Hijack (easy)

Time of First Successful Submission: 2025-11-18 15:42:32

Tricky Control Hijack (hard)

Time of First Successful Submission: 2025-11-18 16:05:37

PIEs (easy)

Time of First Successful Submission: 2025-11-18 16:26:54

PIEs (hard)

Time of First Successful Submission: 2025-11-23 16:31:55

String Lengths (easy)

Time of First Successful Submission: 2025-11-20 22:42:10

String Lengths (hard)

Time of First Successful Submission: 2025-11-25 16:24:07

Basic Shellcode

Time of First Successful Submission: 2025-11-23 15:22:41

NOP Sleds

Time of First Successful Submission: 2025-11-23 15:25:12

NULL-Free Shellcode

Time of First Successful Submission: 2025-11-23 15:35:02

Hijack to (Mapped) Shellcode (easy)

Time of First Successful Submission: 2025-11-23 15:39:07

Hijack to (Mapped) Shellcode (hard)

Time of First Successful Submission: 2025-11-20 18:11:28

Hijack to Shellcode (easy)

Time of First Successful Submission: 2025-11-23 15:44:18

Hijack to Shellcode (hard)

Time of First Successful Submission: 2025-11-23 15:55:34

Start Here

5 / 12 30963 / 43149

Using the Terminal

Time of First Successful Submission: 2025-08-27 00:16:04

Using the VSCode Workspace

Time of First Successful Submission: 2025-08-27 00:19:51

Using the GUI Desktop

Time of First Successful Submission: 2025-08-27 00:22:07

Pasting into the Desktop

Time of First Successful Submission: 2025-08-27 00:33:40

Restarting Challenges

Time of First Successful Submission: 2025-08-27 00:45:53

Linux Luminarium

125 / 128 4010 / 32272

Intro to Commands

Time of First Successful Submission: 2025-08-27 06:00:06

Intro to Arguments

Time of First Successful Submission: 2025-08-27 06:02:33

Command History

Time of First Successful Submission: 2025-08-27 06:03:39

The Root

Time of First Successful Submission: 2025-08-27 19:09:53

Program and absolute paths

Time of First Successful Submission: 2025-08-27 19:11:47

Position thy self

Time of First Successful Submission: 2025-08-27 19:14:20

Position elsewhere

Time of First Successful Submission: 2025-08-27 19:31:44

implicit relative paths, from /

Time of First Successful Submission: 2025-08-28 07:48:18

explicit relative paths, from /

Time of First Successful Submission: 2025-08-28 08:06:20

implicit relative path

Time of First Successful Submission: 2025-08-28 08:37:23

home sweet home

Time of First Successful Submission: 2025-08-28 18:32:27

cat: not the pet, but the command!

Time of First Successful Submission: 2025-08-28 20:05:23

catting absolute paths

Time of First Successful Submission: 2025-08-28 20:09:39

more catting practice

Time of First Successful Submission: 2025-08-28 20:20:17

grepping for a needle in a haystack

Time of First Successful Submission: 2025-08-28 20:21:18

comparing files

Time of First Successful Submission: 2025-08-28 21:38:52

listing files

Time of First Successful Submission: 2025-08-28 22:29:15

touching files

Time of First Successful Submission: 2025-08-28 22:35:01

removing files

Time of First Successful Submission: 2025-08-28 22:35:57

moving files

Time of First Successful Submission: 2025-08-28 23:49:05

hidden files

Time of First Successful Submission: 2025-08-28 23:53:27

An Epic Filesystem Quest

Time of First Successful Submission: 2025-08-29 01:44:31

making directories

Time of First Successful Submission: 2025-08-29 01:53:08

finding files

Time of First Successful Submission: 2025-08-29 04:37:35

linking files

Time of First Successful Submission: 2025-08-31 08:04:34

Learning From Documentation

Time of First Successful Submission: 2025-09-30 23:18:44

Learning Complex Usage

Time of First Successful Submission: 2025-10-02 22:20:58

Reading Manuals

Time of First Successful Submission: 2025-10-02 22:30:26

Searching Manuals

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

Searching For Manuals

Time of First Successful Submission: 2025-10-02 23:18:39

Helpful Programs

Time of First Successful Submission: 2025-10-03 00:11:24

Help for Builtins

Time of First Successful Submission: 2025-10-18 20:26:28

Matching with *

Time of First Successful Submission: 2025-11-19 10:05:44

Matching with ?

Time of First Successful Submission: 2025-11-19 10:08:30

Matching with []

Time of First Successful Submission: 2025-11-19 10:10:31

Matching paths with []

Time of First Successful Submission: 2025-11-19 10:14:25

Multiple globs

Time of First Successful Submission: 2025-11-19 10:15:58

Mixing globs

Time of First Successful Submission: 2025-11-19 10:18:20

Exclusionary globbing

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

Tab completion

Time of First Successful Submission: 2025-11-19 10:23:14

Multiple options for tab completion

Time of First Successful Submission: 2025-11-19 10:40:59

Tab completion on commands

Time of First Successful Submission: 2025-11-19 10:43:14

Redirecting output

Time of First Successful Submission: 2025-11-19 10:44:45

Redirecting more output

Time of First Successful Submission: 2025-11-19 10:46:52

Appending output

Time of First Successful Submission: 2025-11-19 10:50:38

Redirecting errors

Time of First Successful Submission: 2025-11-19 10:56:01

Redirecting input

Time of First Successful Submission: 2025-11-19 11:01:13

Grepping stored results

Time of First Successful Submission: 2025-11-19 11:02:31

Grepping live output

Time of First Successful Submission: 2025-11-19 11:03:40

Grepping errors

Time of First Successful Submission: 2025-11-19 11:05:00

Filtering with grep -v

Time of First Successful Submission: 2025-11-19 11:07:37

Duplicating piped data with tee

Time of First Successful Submission: 2025-11-19 11:22:41

Process substitution for input

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

Writing to multiple programs

Time of First Successful Submission: 2025-11-19 11:29:24

Split-piping stderr and stdout

Time of First Successful Submission: 2025-11-19 11:31:08

Named pipes

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

Printing Variables

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

Setting Variables

Time of First Successful Submission: 2025-11-19 11:36:49

Multi-word Variables

Time of First Successful Submission: 2025-11-19 11:38:10

Exporting Variables

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

Printing Exported Variables

Time of First Successful Submission: 2025-11-19 11:42:55

Storing Command Output

Time of First Successful Submission: 2025-11-19 11:45:28

Reading Input

Time of First Successful Submission: 2025-11-19 11:49:35

Reading Files

Time of First Successful Submission: 2025-11-19 11:50:30

Translating characters

Time of First Successful Submission: 2025-11-19 14:38:32

Deleting characters

Time of First Successful Submission: 2025-11-19 14:41:33

Deleting newlines

Time of First Successful Submission: 2025-11-19 14:42:45

Extracting the first lines with head

Time of First Successful Submission: 2025-11-19 14:43:56

Extracting specific sections of text

Time of First Successful Submission: 2025-11-19 14:45:49

Sorting data

Time of First Successful Submission: 2025-11-19 14:47:31

Listing Processes

Time of First Successful Submission: 2025-11-19 15:04:33

Killing Processes

Time of First Successful Submission: 2025-11-19 15:25:04

Interrupting Processes

Time of First Successful Submission: 2025-11-19 15:26:46

Killing Misbehaving Processes

Time of First Successful Submission: 2025-11-19 15:36:52

Suspending Processes

Time of First Successful Submission: 2025-11-19 15:39:40

Resuming Processes

Time of First Successful Submission: 2025-11-19 15:41:20

Backgrounding Processes

Time of First Successful Submission: 2025-11-19 15:43:30

Foregrounding Processes

Time of First Successful Submission: 2025-11-19 15:45:46

Starting Backgrounded Processes

Time of First Successful Submission: 2025-11-19 15:47:15

Process Exit Codes

Time of First Successful Submission: 2025-11-19 15:49:43

Becoming root with su

Time of First Successful Submission: 2025-11-19 16:06:50

Other users with su

Time of First Successful Submission: 2025-11-19 16:08:59

Cracking passwords

Time of First Successful Submission: 2025-11-19 16:14:02

Using sudo

Time of First Successful Submission: 2025-11-19 16:15:43

Changing File Ownership

Time of First Successful Submission: 2025-11-19 16:21:08

Groups and Files

Time of First Successful Submission: 2025-11-19 16:22:52

Fun With Groups Names

Time of First Successful Submission: 2025-11-19 16:28:06

Changing Permissions

Time of First Successful Submission: 2025-11-19 16:30:07

Executable Files

Time of First Successful Submission: 2025-11-19 16:32:53

Permission Tweaking Practice

Time of First Successful Submission: 2025-11-19 16:47:43

Permissions Setting Practice

Time of First Successful Submission: 2025-11-19 16:56:49

The SUID Bit

Time of First Successful Submission: 2025-11-19 17:00:32

Chaining with Semicolons

Time of First Successful Submission: 2025-11-19 17:02:34

Building on Success

Time of First Successful Submission: 2025-11-19 17:04:38

Handling Failure

Time of First Successful Submission: 2025-11-19 17:06:11

Your First Shell Script

Time of First Successful Submission: 2025-11-19 17:09:10

Redirecting Script Output

Time of First Successful Submission: 2025-11-19 17:10:42

Executable Shell Scripts

Time of First Successful Submission: 2025-11-19 17:12:20

Understanding Shebangs

Time of First Successful Submission: 2025-11-19 17:14:02

Scripting with Arguments

Time of First Successful Submission: 2025-11-19 17:16:51

Scripting with Conditionals

Time of First Successful Submission: 2025-11-19 17:19:38

Scripting with Default Cases

Time of First Successful Submission: 2025-11-19 17:22:01

Scripting with Multiple Conditions

Time of First Successful Submission: 2025-11-19 17:24:32

Launching Screen

Time of First Successful Submission: 2025-11-19 17:28:00

Detaching and Attaching

Time of First Successful Submission: 2025-11-19 17:29:53

Finding Sessions

Time of First Successful Submission: 2025-11-19 17:33:40

Switching Windows

Time of First Successful Submission: 2025-11-19 17:36:28

Detaching and Attaching (tmux)

Time of First Successful Submission: 2025-11-19 18:03:37

Switching Windows (tmux)

Time of First Successful Submission: 2025-11-20 20:57:50

The PATH Variable

Time of First Successful Submission: 2025-11-19 18:11:21

Setting PATH

Time of First Successful Submission: 2025-11-19 18:13:36

Finding Commands

Time of First Successful Submission: 2025-11-19 18:17:57

Adding Commands

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

Hijacking Commands

Time of First Successful Submission: 2025-11-19 18:20:25

Bashrc Backdoor

Time of First Successful Submission: 2025-11-19 18:31:09

Sniffing Input

Time of First Successful Submission: 2025-11-19 18:33:05

Overshared Directories

Time of First Successful Submission: 2025-11-19 18:34:57

Tricky Linking

Time of First Successful Submission: 2025-11-19 18:36:34

Sniffing Process Arguments

Time of First Successful Submission: 2025-11-19 18:39:42

Snooping on Configurations

Time of First Successful Submission: 2025-11-19 18:42:31

The Fork Bomb

Time of First Successful Submission: 2025-11-20 21:25:37

Disk-Space Doomsday

Time of First Successful Submission: 2025-11-19 18:53:18

rm -rf /

Time of First Successful Submission: 2025-11-20 21:41:09

Life after rm -rf /

Time of First Successful Submission: 2025-11-20 21:53:30

Finding meaning after rm -rf /

Time of First Successful Submission: 2025-11-20 22:09:43

Computing 101

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Your First Register

Time of First Successful Submission: 2025-11-08 21:57:59

Your First Syscall

Time of First Successful Submission: 2025-11-08 21:56:12

Exit Codes

Time of First Successful Submission: 2025-11-17 16:46:52

Building Executables

Time of First Successful Submission: 2025-11-17 16:53:19

Moving Between Registers

Time of First Successful Submission: 2025-11-17 16:56:58

Loading From Memory

Time of First Successful Submission: 2025-11-17 17:33:32

More Loading Practice

Time of First Successful Submission: 2025-11-17 17:36:27

Dereferencing Pointers

Time of First Successful Submission: 2025-11-17 17:43:55

Dereferencing Yourself

Time of First Successful Submission: 2025-11-17 17:50:00

Dereferencing with Offsets

Time of First Successful Submission: 2025-11-17 17:53:54

Stored Addresses

Time of First Successful Submission: 2025-11-17 20:04:39

Double Dereference

Time of First Successful Submission: 2025-11-17 20:08:47

Tracing Syscalls

Time of First Successful Submission: 2025-11-17 17:19:01

Starting GDB

Time of First Successful Submission: 2025-11-17 17:22:46

Starting Programs in GDB

Time of First Successful Submission: 2025-11-17 17:24:57

Writing Output

Time of First Successful Submission: 2025-11-17 20:18:13

Chaining Syscalls

Time of First Successful Submission: 2025-11-17 20:22:32

Writing Strings

Time of First Successful Submission: 2025-11-17 20:24:26

Reading Data

Time of First Successful Submission: 2025-11-17 20:27:14

set-register

Time of First Successful Submission: 2025-11-17 20:32:00

set-multiple-registers

Time of First Successful Submission: 2025-11-17 20:34:44

add-to-register

Time of First Successful Submission: 2025-11-17 20:38:27

linear-equation-registers

Time of First Successful Submission: 2025-11-17 20:40:38

integer-division

Time of First Successful Submission: 2025-11-17 20:44:21

modulo-operation

Time of First Successful Submission: 2025-11-17 20:47:08

set-upper-byte

Time of First Successful Submission: 2025-11-17 20:50:57

efficient-modulo

Time of First Successful Submission: 2025-11-17 20:54:20

byte-extraction

Time of First Successful Submission: 2025-11-17 20:57:20

bitwise-and

Time of First Successful Submission: 2025-11-17 21:01:13

check-even

Time of First Successful Submission: 2025-11-17 21:04:00

memory-read

Time of First Successful Submission: 2025-11-17 21:05:42

memory-write

Time of First Successful Submission: 2025-11-17 21:09:24

memory-increment

Time of First Successful Submission: 2025-11-17 21:12:17

byte-access

Time of First Successful Submission: 2025-11-17 21:14:09

memory-size-access

Time of First Successful Submission: 2025-11-17 21:17:44

little-endian-write

Time of First Successful Submission: 2025-11-17 21:21:12

memory-sum

Time of First Successful Submission: 2025-11-17 21:24:39

stack-subtraction

Time of First Successful Submission: 2025-11-17 21:27:06

swap-stack-values

Time of First Successful Submission: 2025-11-17 21:29:55

average-stack-values

Time of First Successful Submission: 2025-11-17 21:33:00

absolute-jump

Time of First Successful Submission: 2025-11-17 21:34:39

relative-jump

Time of First Successful Submission: 2025-11-17 21:40:18

jump-trampoline

Time of First Successful Submission: 2025-11-17 21:43:02

conditional-jump

Time of First Successful Submission: 2025-11-17 21:44:41

indirect-jump

Time of First Successful Submission: 2025-11-17 21:48:18

average-loop

Time of First Successful Submission: 2025-11-17 21:50:41

count-non-zero

Time of First Successful Submission: 2025-11-17 21:54:45

string-lower

Time of First Successful Submission: 2025-11-17 21:58:32

most-common-byte

Time of First Successful Submission: 2025-11-17 22:06:42

Exit

Time of First Successful Submission: 2025-11-18 04:59:37

Socket

Time of First Successful Submission: 2025-11-18 05:04:31

Bind

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Listen

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Accept

Time of First Successful Submission: 2025-11-18 05:13:33

Static Response

Time of First Successful Submission: 2025-11-18 05:16:52

Dynamic Response

Time of First Successful Submission: 2025-11-18 05:20:44

Iterative GET Server

Time of First Successful Submission: 2025-11-18 05:24:04

Concurrent GET Server

Time of First Successful Submission: 2025-11-18 05:27:04

Concurrent POST Server

Time of First Successful Submission: 2025-11-18 05:38:16

Web Server

Time of First Successful Submission: 2025-11-18 05:43:08

Debugging Programs

Time of First Successful Submission: 2025-11-17 22:12:55

Inspecting Registers

Time of First Successful Submission: 2025-11-17 22:19:47

Examining Memory

Time of First Successful Submission: 2025-11-17 22:31:17

Setting Breakpoints

Time of First Successful Submission: 2025-11-18 03:34:17

GDB Scripting

Time of First Successful Submission: 2025-11-18 04:13:45

Modifying Data

Time of First Successful Submission: 2025-11-18 04:36:26

Modifying Execution

Time of First Successful Submission: 2025-11-18 04:41:02

Broken Functions

Time of First Successful Submission: 2025-11-18 04:57:14

Playing With Programs

65 / 116 4098 / 23347

What's the password?

Time of First Successful Submission: 2025-09-04 06:53:27

... and again!

Time of First Successful Submission: 2025-09-04 07:00:05

Newline Troubles

Time of First Successful Submission: 2025-09-05 00:20:32

Reasoning about files

Time of First Successful Submission: 2025-09-05 00:30:33

Specifying Filenames

Time of First Successful Submission: 2025-09-05 00:36:18

Binary and Hex Encoding

Time of First Successful Submission: 2025-09-05 01:00:26

More Hex

Time of First Successful Submission: 2025-09-05 01:14:15

Decoding Hex

Time of First Successful Submission: 2025-09-08 03:27:12

Decoding Practice

Time of First Successful Submission: 2025-09-08 04:00:37

Encoding Practice

Time of First Successful Submission: 2025-09-08 04:09:48

Hex-encoding ASCII

Time of First Successful Submission: 2025-09-08 04:29:58

Nested Encoding

Time of First Successful Submission: 2025-09-10 06:27:26

Hex-encoding UTF-8

Time of First Successful Submission: 2025-11-19 00:08:13

UTF Mixups

Time of First Successful Submission: 2025-11-19 00:11:38

Modifying Encoded Data

Time of First Successful Submission: 2025-11-19 00:15:38

Decoding Base64

Time of First Successful Submission: 2025-11-19 00:18:19

Encoding Base64

Time of First Successful Submission: 2025-11-19 00:30:43

Dealing with Obfuscation

Time of First Successful Submission: 2025-11-19 00:33:34

Dealing with Obfuscation 2

Time of First Successful Submission: 2025-11-19 00:36:45

Your First HTTP Request

Time of First Successful Submission: 2025-11-19 00:27:54

Reading Flask

Time of First Successful Submission: 2025-11-19 00:40:45

Commented Data

Time of First Successful Submission: 2025-11-19 00:43:52

HTTP Metadata

Time of First Successful Submission: 2025-11-19 00:48:13

HTTP (netcat)

Time of First Successful Submission: 2025-11-19 00:54:11

HTTP Paths (netcat)

Time of First Successful Submission: 2025-11-19 00:59:59

HTTP (curl)

Time of First Successful Submission: 2025-11-19 01:03:33

HTTP (python)

Time of First Successful Submission: 2025-11-19 01:07:04

HTTP Host Header (python)

Time of First Successful Submission: 2025-11-19 01:16:34

HTTP Host Header (curl)

Time of First Successful Submission: 2025-11-19 01:19:33

HTTP Host Header (netcat)

Time of First Successful Submission: 2025-11-19 01:24:52

URL Encoding (netcat)

Time of First Successful Submission: 2025-11-19 01:27:50

HTTP GET Parameters

Time of First Successful Submission: 2025-11-19 01:31:15

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2025-11-19 01:34:09

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2025-11-19 01:36:56

HTTP Forms

Time of First Successful Submission: 2025-11-19 01:49:19

HTTP Forms (curl)

Time of First Successful Submission: 2025-11-19 01:52:41

HTTP Forms (netcat)

Time of First Successful Submission: 2025-11-19 09:24:16

HTTP Forms (python)

Time of First Successful Submission: 2025-11-19 04:48:32

HTTP Forms Without Forms

Time of First Successful Submission: 2025-11-19 05:03:52

Multiple Form Fields (curl)

Time of First Successful Submission: 2025-11-19 05:07:29

Multiple Form Fields (netcat)

Time of First Successful Submission: 2025-11-19 09:29:53

HTTP Redirects (netcat)

Time of First Successful Submission: 2025-11-19 05:25:00

HTTP Redirects (curl)

Time of First Successful Submission: 2025-11-19 05:29:01

HTTP Redirects (python)

Time of First Successful Submission: 2025-11-19 05:36:16

HTTP Cookies (curl)

Time of First Successful Submission: 2025-11-19 05:39:34

HTTP Cookies (netcat)

Time of First Successful Submission: 2025-11-19 05:45:16

HTTP Cookies (python)

Time of First Successful Submission: 2025-11-19 05:50:43

Server State (python)

Time of First Successful Submission: 2025-11-19 05:53:19

Listening Web

Time of First Successful Submission: 2025-11-19 06:02:05

Speaking Redirects

Time of First Successful Submission: 2025-11-19 06:06:30

JavaScript Redirects

Time of First Successful Submission: 2025-11-19 06:19:33

Including JavaScript

Time of First Successful Submission: 2025-11-19 06:49:50

HTTP (javascript)

Time of First Successful Submission: 2025-11-19 06:56:33

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2025-11-19 07:06:47

HTTP Forms (javascript)

Time of First Successful Submission: 2025-11-19 07:13:07

SQL Queries

Time of First Successful Submission: 2025-11-19 07:16:56

Filtering SQL

Time of First Successful Submission: 2025-11-19 07:22:12

Choosing Columns

Time of First Successful Submission: 2025-11-19 07:26:20

Exclusionary Filtering

Time of First Successful Submission: 2025-11-19 08:21:30

Filtering Strings

Time of First Successful Submission: 2025-11-19 07:35:08

Filtering on Expressions

Time of First Successful Submission: 2025-11-19 08:25:32

SELECTing Expressions

Time of First Successful Submission: 2025-11-19 07:42:25

Composite Conditions

Time of First Successful Submission: 2025-11-19 07:45:04

Reaching Your LIMITs

Time of First Successful Submission: 2025-11-19 07:47:35

Querying Metadata

Time of First Successful Submission: 2025-11-19 07:53:48

GCA CTF

5 / 104 31110 / 43426

Using the Terminal

Time of First Successful Submission: 2025-08-27 00:16:04

Using the VSCode Workspace

Time of First Successful Submission: 2025-08-27 00:19:51

Using the GUI Desktop

Time of First Successful Submission: 2025-08-27 00:22:07

Pasting into the Desktop

Time of First Successful Submission: 2025-08-27 00:33:40

Restarting Challenges

Time of First Successful Submission: 2025-08-27 00:45:53