henrymyos

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Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-01-13 18:35:57

Command Arguments

Time of First Successful Submission: 2026-01-13 18:36:44

Command History

Time of First Successful Submission: 2026-01-13 18:37:21

The Root Path

Time of First Successful Submission: 2026-01-13 18:58:24

Absolute Paths

Time of First Successful Submission: 2026-01-13 18:59:16

Changing position

Time of First Successful Submission: 2026-01-13 19:05:00

Changing to an Absolute Path

Time of First Successful Submission: 2026-01-13 19:07:47

Relative Paths

Time of First Successful Submission: 2026-01-14 02:42:18

Cat

Time of First Successful Submission: 2026-01-14 02:51:54

Ls

Time of First Successful Submission: 2026-01-14 02:59:42

Ls All

Time of First Successful Submission: 2026-01-14 03:28:09

Find

Time of First Successful Submission: 2026-01-14 04:06:40

Piping Echo

Time of First Successful Submission: 2026-01-14 20:57:52

Piping Stdout

Time of First Successful Submission: 2026-01-14 21:01:42

Piping Stdin

Time of First Successful Submission: 2026-01-14 21:23:45

Intro to Cybersecurity

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Path Traversal 1

Time of First Successful Submission: 2026-02-03 18:37:05

Path Traversal 2

Time of First Successful Submission: 2026-02-09 14:38:18

CMDi 1

Time of First Successful Submission: 2026-02-09 14:50:15

CMDi 2

Time of First Successful Submission: 2026-02-09 17:31:34

CMDi 3

Time of First Successful Submission: 2026-02-09 17:26:38

CMDi 4

Time of First Successful Submission: 2026-02-09 17:35:15

CMDi 5

Time of First Successful Submission: 2026-02-09 17:38:23

Authentication Bypass 1

Time of First Successful Submission: 2026-02-09 18:06:38

Authentication Bypass 2

Time of First Successful Submission: 2026-02-09 18:08:56

SQLi 1

Time of First Successful Submission: 2026-02-09 18:19:01

SQLi 2

Time of First Successful Submission: 2026-02-09 18:26:35

SQLi 3

Time of First Successful Submission: 2026-02-09 21:13:36

SQLi 4

Time of First Successful Submission: 2026-02-09 21:17:06

SQLi 5

Time of First Successful Submission: 2026-02-09 21:27:29

XSS 1

Time of First Successful Submission: 2026-02-10 14:14:48

XSS 2

Time of First Successful Submission: 2026-02-10 14:19:41

XSS 3

Time of First Successful Submission: 2026-02-10 14:23:46

XSS 4

Time of First Successful Submission: 2026-02-10 14:26:44

XSS 5

Time of First Successful Submission: 2026-02-10 14:44:52

XSS 6

Time of First Successful Submission: 2026-02-10 14:48:19

XSS 7

Time of First Successful Submission: 2026-02-10 14:54:39

CSRF 1

Time of First Successful Submission: 2026-02-10 17:18:54

CSRF 2

Time of First Successful Submission: 2026-02-11 19:02:52

CSRF 3

Time of First Successful Submission: 2026-02-11 19:07:06

CSRF 4

Time of First Successful Submission: 2026-02-11 21:10:37

CSRF 5

Time of First Successful Submission: 2026-02-11 21:14:04

Connect

Time of First Successful Submission: 2026-04-13 18:52:22

Send

Time of First Successful Submission: 2026-04-13 18:58:26

Shutdown

Time of First Successful Submission: 2026-04-13 19:02:55

Listen

Time of First Successful Submission: 2026-04-13 19:04:45

Scan 1

Time of First Successful Submission: 2026-04-13 19:13:22

Scan 2

Time of First Successful Submission: 2026-04-13 19:50:30

Monitor 1

Time of First Successful Submission: 2026-04-13 19:52:58

Monitor 2

Time of First Successful Submission: 2026-04-14 01:08:47

Sniffing Cookies

Time of First Successful Submission: 2026-04-14 01:52:42

Network Configuration

Time of First Successful Submission: 2026-04-14 01:53:49

Firewall 1

Time of First Successful Submission: 2026-04-14 01:55:38

Firewall 2

Time of First Successful Submission: 2026-04-14 01:59:11

Firewall 3

Time of First Successful Submission: 2026-04-14 02:01:34

Denial of Service 1

Time of First Successful Submission: 2026-04-14 23:16:16

Denial of Service 2

Time of First Successful Submission: 2026-04-14 23:17:42

Denial of Service 3

Time of First Successful Submission: 2026-04-14 23:19:27

Ethernet

Time of First Successful Submission: 2026-04-14 23:29:59

IP

Time of First Successful Submission: 2026-04-14 03:03:19

TCP

Time of First Successful Submission: 2026-04-14 14:05:47

TCP Handshake

Time of First Successful Submission: 2026-04-14 14:08:18

UDP

Time of First Successful Submission: 2026-04-14 14:12:43

UDP 2

Time of First Successful Submission: 2026-04-14 14:15:25

UDP Spoofing 1

Time of First Successful Submission: 2026-04-14 23:31:12

UDP Spoofing 2

Time of First Successful Submission: 2026-04-14 23:32:10

UDP Spoofing 3

Time of First Successful Submission: 2026-04-14 23:32:49

UDP Spoofing 4

Time of First Successful Submission: 2026-04-14 23:38:56

ARP

Time of First Successful Submission: 2026-04-14 17:40:52

XOR

Time of First Successful Submission: 2026-04-20 20:17:45

XORing Hex

Time of First Successful Submission: 2026-04-20 20:22:30

XORing ASCII

Time of First Successful Submission: 2026-04-21 00:59:46

XORing ASCII Strings

Time of First Successful Submission: 2026-04-21 01:06:44

One-time Pad

Time of First Successful Submission: 2026-04-21 01:57:37

One-time Pad Tampering

Time of First Successful Submission: 2026-04-21 02:28:40

Many-time Pad

Time of First Successful Submission: 2026-04-21 02:34:31

AES

Time of First Successful Submission: 2026-04-21 13:08:20

AES-ECB-CPA

Time of First Successful Submission: 2026-04-21 13:19:51

AES-ECB-CPA-HTTP

Time of First Successful Submission: 2026-04-24 00:38:56

AES-ECB-CPA-HTTP (base64)

Time of First Successful Submission: 2026-04-24 00:41:01

AES-ECB-CPA-Suffix

Time of First Successful Submission: 2026-04-24 00:50:02

AES-ECB-CPA-Prefix

Time of First Successful Submission: 2026-04-24 00:52:42

AES-ECB-CPA-Prefix-2

Time of First Successful Submission: 2026-04-24 00:54:20

AES-ECB-CPA-Prefix-Miniboss

Time of First Successful Submission: 2026-04-24 01:00:45

AES-ECB-CPA-Prefix-Boss

Time of First Successful Submission: 2026-04-24 01:05:17

AES-CBC

Time of First Successful Submission: 2026-04-24 01:06:50

AES-CBC Tampering

Time of First Successful Submission: 2026-04-24 01:09:16

AES-CBC Resizing

Time of First Successful Submission: 2026-04-24 01:11:16

AES-CBC-POA-Partial-Block

Time of First Successful Submission: 2026-04-24 01:22:05

AES-CBC-POA-Full-Block

Time of First Successful Submission: 2026-04-24 20:52:15

AES-CBC-POA-Multi-Block

Time of First Successful Submission: 2026-04-24 20:55:41

AES-CBC-POA-Encrypt

Time of First Successful Submission: 2026-04-24 20:57:25

AES-CBC-POA-Encrypt-2

Time of First Successful Submission: 2026-04-24 20:58:01

DHKE

Time of First Successful Submission: 2026-04-24 22:14:37

DHKE-to-AES

Time of First Successful Submission: 2026-04-24 22:18:17

RSA 1

Time of First Successful Submission: 2026-04-24 22:21:42

RSA 2

Time of First Successful Submission: 2026-04-24 22:23:34

RSA 3

Time of First Successful Submission: 2026-04-24 22:24:50

RSA 4

Time of First Successful Submission: 2026-04-30 22:24:55

RSA Signatures

Time of First Successful Submission: 2026-04-30 22:26:16

SHA 1

Time of First Successful Submission: 2026-04-30 22:40:28

SHA 2

Time of First Successful Submission: 2026-04-30 22:42:21

TLS 1

Time of First Successful Submission: 2026-04-30 22:43:01

TLS 2

Time of First Successful Submission: 2026-04-30 22:43:54

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2026-03-10 12:34:39

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2026-03-10 12:38:25

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2026-03-10 12:40:36

Reading Endianness (Python)

Time of First Successful Submission: 2026-03-10 12:43:51

Reading Endianness (C)

Time of First Successful Submission: 2026-03-10 12:48:01

Reading Endianness (x86)

Time of First Successful Submission: 2026-03-10 12:49:33

Version Information (Python)

Time of First Successful Submission: 2026-03-10 12:58:19

Version Information (C)

Time of First Successful Submission: 2026-03-10 13:01:02

Version Information (x86)

Time of First Successful Submission: 2026-03-10 13:02:54

Metadata and Data (Python)

Time of First Successful Submission: 2026-03-10 15:07:14

Metadata and Data (C)

Time of First Successful Submission: 2026-03-10 15:11:25

Metadata and Data (x86)

Time of First Successful Submission: 2026-03-10 15:14:57

Input Restrictions (Python)

Time of First Successful Submission: 2026-03-10 15:17:29

Input Restrictions (C)

Time of First Successful Submission: 2026-03-10 22:45:20

Input Restrictions (x86)

Time of First Successful Submission: 2026-03-10 22:47:38

Behold the cIMG! (Python)

Time of First Successful Submission: 2026-03-10 22:50:55

Behold the cIMG! (C)

Time of First Successful Submission: 2026-03-10 22:53:24

Behold the cIMG! (x86)

Time of First Successful Submission: 2026-03-10 22:57:14

A Basic cIMG (Python)

Time of First Successful Submission: 2026-03-10 23:00:27

A Basic cIMG (C)

Time of First Successful Submission: 2026-03-10 23:03:47

A Basic cIMG (x86)

Time of First Successful Submission: 2026-03-11 03:39:16

Internal State Mini (C)

Time of First Successful Submission: 2026-03-11 03:45:37

Internal State Mini (x86)

Time of First Successful Submission: 2026-03-11 03:49:09

Internal State (C)

Time of First Successful Submission: 2026-03-11 03:59:30

Internal State (x86)

Time of First Successful Submission: 2026-03-11 04:05:03

File Formats: Directives (C)

Time of First Successful Submission: 2026-03-16 01:24:44

File Formats: Directives (x86)

Time of First Successful Submission: 2026-03-16 01:55:19

The Patch Directive

Time of First Successful Submission: 2026-03-16 02:06:09

Interoperability: Patching Data

Time of First Successful Submission: 2026-03-23 14:19:56

Your First Overflow (easy)

Time of First Successful Submission: 2026-03-25 01:35:53

Your First Overflow (hard)

Time of First Successful Submission: 2026-03-25 01:40:53

Precision (easy)

Time of First Successful Submission: 2026-03-25 01:44:18

Precision (hard)

Time of First Successful Submission: 2026-03-25 01:46:22

Variable Control (easy)

Time of First Successful Submission: 2026-03-25 01:49:13

Variable Control (hard)

Time of First Successful Submission: 2026-03-25 01:50:47

Control Hijack (easy)

Time of First Successful Submission: 2026-03-25 01:53:34

Control Hijack (hard)

Time of First Successful Submission: 2026-03-25 01:55:32

Tricky Control Hijack (easy)

Time of First Successful Submission: 2026-03-25 01:59:44

Tricky Control Hijack (hard)

Time of First Successful Submission: 2026-03-25 02:01:32

PIEs (easy)

Time of First Successful Submission: 2026-03-25 02:13:26

PIEs (hard)

Time of First Successful Submission: 2026-03-25 02:20:23

String Lengths (easy)

Time of First Successful Submission: 2026-03-25 02:29:26

String Lengths (hard)

Time of First Successful Submission: 2026-03-25 02:31:31

Basic Shellcode

Time of First Successful Submission: 2026-03-25 02:39:56

NOP Sleds

Time of First Successful Submission: 2026-03-25 16:41:08

NULL-Free Shellcode

Time of First Successful Submission: 2026-03-25 16:45:16

Hijack to (Mapped) Shellcode (easy)

Time of First Successful Submission: 2026-03-27 01:14:32

Hijack to (Mapped) Shellcode (hard)

Time of First Successful Submission: 2026-03-27 01:17:50

Hijack to Shellcode (easy)

Time of First Successful Submission: 2026-03-27 01:12:11

Start Here

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Using the Terminal

Time of First Successful Submission: 2026-01-13 18:20:32

Using the VSCode Workspace

Time of First Successful Submission: 2026-01-13 18:22:19

Using the GUI Desktop

Time of First Successful Submission: 2026-01-13 18:24:09

Pasting into the Desktop

Time of First Successful Submission: 2026-01-13 18:25:52

Restarting Challenges

Time of First Successful Submission: 2026-01-13 18:28:41

Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2026-01-13 18:35:57

Intro to Arguments

Time of First Successful Submission: 2026-01-13 18:36:44

Command History

Time of First Successful Submission: 2026-01-13 18:37:21

The Root

Time of First Successful Submission: 2026-01-13 18:58:24

Program and absolute paths

Time of First Successful Submission: 2026-01-13 18:59:16

Position thy self

Time of First Successful Submission: 2026-01-13 19:05:00

Position elsewhere

Time of First Successful Submission: 2026-01-13 19:07:47

implicit relative paths, from /

Time of First Successful Submission: 2026-01-14 02:42:18

explicit relative paths, from /

Time of First Successful Submission: 2026-01-14 02:44:41

implicit relative path

Time of First Successful Submission: 2026-01-14 02:46:05

home sweet home

Time of First Successful Submission: 2026-01-14 02:50:39

cat: not the pet, but the command!

Time of First Successful Submission: 2026-01-14 02:51:54

catting absolute paths

Time of First Successful Submission: 2026-01-14 02:52:24

more catting practice

Time of First Successful Submission: 2026-01-14 02:53:15

grepping for a needle in a haystack

Time of First Successful Submission: 2026-01-14 02:54:14

comparing files

Time of First Successful Submission: 2026-01-14 02:55:56

listing files

Time of First Successful Submission: 2026-01-14 02:59:42

touching files

Time of First Successful Submission: 2026-01-14 03:01:04

removing files

Time of First Successful Submission: 2026-01-14 03:04:41

moving files

Time of First Successful Submission: 2026-01-14 03:25:24

copying files

Time of First Successful Submission: 2026-01-14 03:26:35

hidden files

Time of First Successful Submission: 2026-01-14 03:28:09

An Epic Filesystem Quest

Time of First Successful Submission: 2026-01-14 03:34:39

making directories

Time of First Successful Submission: 2026-01-14 03:55:44

finding files

Time of First Successful Submission: 2026-01-14 04:06:40

linking files

Time of First Successful Submission: 2026-01-14 04:16:37

Learning From Documentation

Time of First Successful Submission: 2026-01-14 14:54:15

Learning Complex Usage

Time of First Successful Submission: 2026-01-14 14:57:21

Reading Manuals

Time of First Successful Submission: 2026-01-14 15:00:35

Searching Manuals

Time of First Successful Submission: 2026-01-14 15:02:36

Searching For Manuals

Time of First Successful Submission: 2026-01-14 15:13:24

Helpful Programs

Time of First Successful Submission: 2026-01-14 15:15:27

Help for Builtins

Time of First Successful Submission: 2026-01-14 20:22:29

Matching with *

Time of First Successful Submission: 2026-01-14 20:26:19

Matching with ?

Time of First Successful Submission: 2026-01-14 20:27:00

Matching with []

Time of First Successful Submission: 2026-01-14 20:28:33

Matching paths with []

Time of First Successful Submission: 2026-01-14 20:30:45

Multiple globs

Time of First Successful Submission: 2026-01-14 20:33:39

Mixing globs

Time of First Successful Submission: 2026-01-14 20:38:45

Exclusionary globbing

Time of First Successful Submission: 2026-01-14 20:48:34

Tab completion

Time of First Successful Submission: 2026-01-14 20:50:32

Multiple options for tab completion

Time of First Successful Submission: 2026-01-14 20:53:05

Tab completion on commands

Time of First Successful Submission: 2026-01-14 20:54:16

Redirecting output

Time of First Successful Submission: 2026-01-14 20:57:52

Redirecting more output

Time of First Successful Submission: 2026-01-14 21:01:42

Appending output

Time of First Successful Submission: 2026-01-14 21:06:42

Redirecting errors

Time of First Successful Submission: 2026-01-14 21:20:26

Redirecting input

Time of First Successful Submission: 2026-01-14 21:23:45

Grepping stored results

Time of First Successful Submission: 2026-01-14 21:27:41

Grepping live output

Time of First Successful Submission: 2026-01-14 21:30:06

Grepping errors

Time of First Successful Submission: 2026-01-14 21:34:15

Filtering with grep -v

Time of First Successful Submission: 2026-01-14 21:37:39

Filtering with sed

Time of First Successful Submission: 2026-01-14 21:41:28

Duplicating piped data with tee

Time of First Successful Submission: 2026-01-15 01:48:18

Process substitution for input

Time of First Successful Submission: 2026-01-15 01:52:20

Writing to multiple programs

Time of First Successful Submission: 2026-01-15 01:57:47

Split-piping stderr and stdout

Time of First Successful Submission: 2026-01-15 02:03:04

Named pipes

Time of First Successful Submission: 2026-01-15 02:11:16

Printing Variables

Time of First Successful Submission: 2026-01-15 02:13:11

Setting Variables

Time of First Successful Submission: 2026-01-15 02:14:46

Multi-word Variables

Time of First Successful Submission: 2026-01-15 02:15:42

Exporting Variables

Time of First Successful Submission: 2026-01-15 03:48:40

Printing Exported Variables

Time of First Successful Submission: 2026-01-15 03:49:47

Storing Command Output

Time of First Successful Submission: 2026-01-15 03:51:05

Reading Input

Time of First Successful Submission: 2026-01-15 03:52:50

Reading Files

Time of First Successful Submission: 2026-01-15 03:54:56

Translating characters

Time of First Successful Submission: 2026-01-15 16:51:21

Deleting characters

Time of First Successful Submission: 2026-01-15 16:52:08

Deleting newlines

Time of First Successful Submission: 2026-01-15 16:53:42

Extracting the first lines with head

Time of First Successful Submission: 2026-01-15 16:54:51

Extracting specific sections of text

Time of First Successful Submission: 2026-01-15 16:57:04

Sorting data

Time of First Successful Submission: 2026-01-15 16:58:12

Listing Processes

Time of First Successful Submission: 2026-01-16 14:23:01

Killing Processes

Time of First Successful Submission: 2026-01-16 14:25:39

Interrupting Processes

Time of First Successful Submission: 2026-01-16 14:26:27

Killing Misbehaving Processes

Time of First Successful Submission: 2026-01-16 14:30:34

Suspending Processes

Time of First Successful Submission: 2026-01-16 14:31:22

Resuming Processes

Time of First Successful Submission: 2026-01-16 14:31:57

Backgrounding Processes

Time of First Successful Submission: 2026-01-16 14:33:00

Foregrounding Processes

Time of First Successful Submission: 2026-01-16 14:35:30

Starting Backgrounded Processes

Time of First Successful Submission: 2026-01-16 14:36:04

Process Exit Codes

Time of First Successful Submission: 2026-01-16 14:37:06

Becoming root with su

Time of First Successful Submission: 2026-01-16 14:51:51

Other users with su

Time of First Successful Submission: 2026-01-16 14:52:26

Cracking passwords

Time of First Successful Submission: 2026-01-16 14:55:48

Using sudo

Time of First Successful Submission: 2026-01-16 15:01:22

Changing File Ownership

Time of First Successful Submission: 2026-01-16 15:05:38

Groups and Files

Time of First Successful Submission: 2026-01-16 15:09:10

Fun With Groups Names

Time of First Successful Submission: 2026-01-16 15:10:01

Changing Permissions

Time of First Successful Submission: 2026-01-16 15:13:46

Executable Files

Time of First Successful Submission: 2026-01-16 15:15:18

Permission Tweaking Practice

Time of First Successful Submission: 2026-01-16 15:21:21

Permissions Setting Practice

Time of First Successful Submission: 2026-01-16 15:25:11

The SUID Bit

Time of First Successful Submission: 2026-01-16 15:29:48

Chaining with Semicolons

Time of First Successful Submission: 2026-01-16 15:38:34

Building on Success

Time of First Successful Submission: 2026-01-16 15:39:46

Handling Failure

Time of First Successful Submission: 2026-01-16 15:40:36

Your First Shell Script

Time of First Successful Submission: 2026-01-16 15:44:48

Redirecting Script Output

Time of First Successful Submission: 2026-01-16 15:47:21

Executable Shell Scripts

Time of First Successful Submission: 2026-01-16 15:49:42

Understanding Shebangs

Time of First Successful Submission: 2026-01-16 15:53:25

Scripting with Arguments

Time of First Successful Submission: 2026-01-16 15:55:59

Scripting with Conditionals

Time of First Successful Submission: 2026-01-16 15:57:52

Scripting with Default Cases

Time of First Successful Submission: 2026-01-16 15:58:57

Scripting with Multiple Conditions

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

Reading Shell Scripts

Time of First Successful Submission: 2026-01-16 16:03:40

Launching Screen

Time of First Successful Submission: 2026-01-16 17:28:37

Detaching and Attaching

Time of First Successful Submission: 2026-01-16 17:31:12

Finding Sessions

Time of First Successful Submission: 2026-01-16 17:32:44

Switching Windows

Time of First Successful Submission: 2026-01-16 17:36:29

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-01-16 17:38:27

Switching Windows (tmux)

Time of First Successful Submission: 2026-01-16 17:39:19

The PATH Variable

Time of First Successful Submission: 2026-01-16 17:41:00

Setting PATH

Time of First Successful Submission: 2026-01-16 17:42:23

Finding Commands

Time of First Successful Submission: 2026-01-16 17:44:42

Adding Commands

Time of First Successful Submission: 2026-01-16 17:52:34

Hijacking Commands

Time of First Successful Submission: 2026-01-16 17:55:41

Bashrc Backdoor

Time of First Successful Submission: 2026-01-16 18:01:10

Sniffing Input

Time of First Successful Submission: 2026-01-16 18:08:53

Overshared Directories

Time of First Successful Submission: 2026-01-16 18:14:30

Tricky Linking

Time of First Successful Submission: 2026-01-16 18:27:44

Sniffing Process Arguments

Time of First Successful Submission: 2026-01-16 18:32:24

Snooping on Configurations

Time of First Successful Submission: 2026-01-16 18:36:16

The Fork Bomb

Time of First Successful Submission: 2026-01-16 19:57:36

Disk-Space Doomsday

Time of First Successful Submission: 2026-01-16 18:52:40

rm -rf /

Time of First Successful Submission: 2026-01-16 23:12:15

Life after rm -rf /

Time of First Successful Submission: 2026-01-16 23:18:29

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-01-16 23:24:32

Computing 101

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Your First Register

Time of First Successful Submission: 2026-02-23 18:57:08

Your First Syscall

Time of First Successful Submission: 2026-02-23 19:00:12

Exit Codes

Time of First Successful Submission: 2026-02-23 19:01:57

Building Executables

Time of First Successful Submission: 2026-02-23 19:07:26

Moving Between Registers

Time of First Successful Submission: 2026-02-23 19:10:34

Loading From Memory

Time of First Successful Submission: 2026-02-23 19:54:41

More Loading Practice

Time of First Successful Submission: 2026-02-23 19:55:34

Dereferencing Pointers

Time of First Successful Submission: 2026-02-23 19:57:39

Dereferencing Yourself

Time of First Successful Submission: 2026-02-23 19:59:10

Dereferencing with Offsets

Time of First Successful Submission: 2026-02-23 20:01:27

Stored Addresses

Time of First Successful Submission: 2026-02-23 20:04:15

Double Dereference

Time of First Successful Submission: 2026-02-23 20:56:31

The Stack

Time of First Successful Submission: 2026-02-24 01:55:41

Stack Offsets

Time of First Successful Submission: 2026-02-24 01:56:46

Program Arguments on the Stack

Time of First Successful Submission: 2026-02-24 01:59:03

Popping From the Stack

Time of First Successful Submission: 2026-02-24 02:00:55

Disassembling Programs

Time of First Successful Submission: 2026-02-24 02:26:01

Tracing Syscalls

Time of First Successful Submission: 2026-02-24 02:28:14

Starting GDB

Time of First Successful Submission: 2026-02-24 02:29:26

Quitting GDB

Time of First Successful Submission: 2026-02-24 02:30:02

Starting Programs in GDB

Time of First Successful Submission: 2026-02-24 02:31:46

Disassembling in GDB

Time of First Successful Submission: 2026-02-24 02:32:22

Stepping Through Instructions

Time of First Successful Submission: 2026-02-24 02:38:16

Reading Register Values

Time of First Successful Submission: 2026-02-24 02:39:32

Popping Stack Values

Time of First Successful Submission: 2026-02-24 02:40:36

Examining Memory

Time of First Successful Submission: 2026-02-24 02:41:57

Examining Stack Pointers

Time of First Successful Submission: 2026-02-24 02:43:22

Cooperative Debugging

Time of First Successful Submission: 2026-02-24 02:48:50

Writing Output

Time of First Successful Submission: 2026-02-24 03:05:17

Chaining Syscalls

Time of First Successful Submission: 2026-02-24 03:06:45

Writing Strings

Time of First Successful Submission: 2026-02-24 03:07:28

Reading Data

Time of First Successful Submission: 2026-02-24 04:14:24

Opening Files

Time of First Successful Submission: 2026-02-24 04:19:19

Hardcoding the Filename

Time of First Successful Submission: 2026-02-24 04:23:34

Comparing Values

Time of First Successful Submission: 2026-02-24 15:38:44

Comparing Characters

Time of First Successful Submission: 2026-02-24 15:40:15

Conditional Control Flow

Time of First Successful Submission: 2026-02-24 15:44:20

Comparing Strings

Time of First Successful Submission: 2026-02-24 15:45:56

Reverse the Password

Time of First Successful Submission: 2026-02-24 15:49:25

Conditionals Without Conditionals

Time of First Successful Submission: 2026-02-24 15:58:39

Looping

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

Reverse the Calculation

Time of First Successful Submission: 2026-02-24 17:42:48

Reverse the Reverse

Time of First Successful Submission: 2026-02-24 17:44:16

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-02-24 17:46:40

Loops on Data

Time of First Successful Submission: 2026-02-24 17:48:31

set-register

Time of First Successful Submission: 2026-02-24 17:59:38

set-multiple-registers

Time of First Successful Submission: 2026-02-24 18:02:05

add-to-register

Time of First Successful Submission: 2026-02-25 02:52:45

linear-equation-registers

Time of First Successful Submission: 2026-02-25 02:55:50

integer-division

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

modulo-operation

Time of First Successful Submission: 2026-02-25 03:01:42

set-upper-byte

Time of First Successful Submission: 2026-02-25 15:45:50

efficient-modulo

Time of First Successful Submission: 2026-02-25 15:49:09

byte-extraction

Time of First Successful Submission: 2026-02-25 15:53:16

bitwise-and

Time of First Successful Submission: 2026-02-25 15:55:12

check-even

Time of First Successful Submission: 2026-02-25 15:59:46

memory-read

Time of First Successful Submission: 2026-02-25 19:57:14

memory-write

Time of First Successful Submission: 2026-02-25 20:06:54

memory-increment

Time of First Successful Submission: 2026-02-25 20:10:29

byte-access

Time of First Successful Submission: 2026-02-25 20:12:34

memory-size-access

Time of First Successful Submission: 2026-02-25 20:14:22

little-endian-write

Time of First Successful Submission: 2026-02-25 20:17:30

memory-sum

Time of First Successful Submission: 2026-02-25 20:19:49

stack-subtraction

Time of First Successful Submission: 2026-02-25 20:21:14

swap-stack-values

Time of First Successful Submission: 2026-02-25 20:22:28

average-stack-values

Time of First Successful Submission: 2026-02-25 20:25:33

absolute-jump

Time of First Successful Submission: 2026-02-25 20:29:28

relative-jump

Time of First Successful Submission: 2026-02-25 20:32:43

jump-trampoline

Time of First Successful Submission: 2026-02-25 20:34:37

conditional-jump

Time of First Successful Submission: 2026-02-25 21:31:21

indirect-jump

Time of First Successful Submission: 2026-02-25 21:34:47

average-loop

Time of First Successful Submission: 2026-02-25 21:37:27

count-non-zero

Time of First Successful Submission: 2026-02-26 15:07:31

string-lower

Time of First Successful Submission: 2026-02-26 18:17:34

most-common-byte

Time of First Successful Submission: 2026-02-26 18:27:18

Exit

Time of First Successful Submission: 2026-03-03 21:22:16

Socket

Time of First Successful Submission: 2026-03-03 21:26:23

Bind

Time of First Successful Submission: 2026-03-03 21:27:27

Listen

Time of First Successful Submission: 2026-03-03 21:28:40

Accept

Time of First Successful Submission: 2026-03-03 21:30:32

Static Response

Time of First Successful Submission: 2026-03-03 21:32:09

Dynamic Response

Time of First Successful Submission: 2026-03-03 21:37:06

Iterative GET Server

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

Concurrent GET Server

Time of First Successful Submission: 2026-03-03 21:39:40

Concurrent POST Server

Time of First Successful Submission: 2026-03-03 21:41:37

Web Server

Time of First Successful Submission: 2026-03-03 21:42:44

Debugging Programs

Time of First Successful Submission: 2026-02-26 18:29:52

Inspecting Registers

Time of First Successful Submission: 2026-02-26 18:34:08

Examining Memory

Time of First Successful Submission: 2026-02-26 19:32:40

Setting Breakpoints

Time of First Successful Submission: 2026-04-30 22:54:51

GDB Scripting

Time of First Successful Submission: 2026-04-30 23:02:27

Modifying Data

Time of First Successful Submission: 2026-04-30 23:06:10

Modifying Execution

Time of First Successful Submission: 2026-04-30 23:07:29

Broken Functions

Time of First Successful Submission: 2026-04-30 23:20:31

Playing With Programs

65 / 116 4233 / 23642

What's the password?

Time of First Successful Submission: 2026-01-20 20:59:46

... and again!

Time of First Successful Submission: 2026-01-20 21:00:28

Newline Troubles

Time of First Successful Submission: 2026-01-20 21:01:57

Reasoning about files

Time of First Successful Submission: 2026-01-20 21:04:48

Specifying Filenames

Time of First Successful Submission: 2026-01-20 21:06:46

Binary and Hex Encoding

Time of First Successful Submission: 2026-01-20 21:12:11

More Hex

Time of First Successful Submission: 2026-01-20 21:14:18

Decoding Hex

Time of First Successful Submission: 2026-01-20 21:17:28

Decoding Practice

Time of First Successful Submission: 2026-01-20 21:19:59

Encoding Practice

Time of First Successful Submission: 2026-01-20 21:21:05

Hex-encoding ASCII

Time of First Successful Submission: 2026-01-20 21:30:10

Nested Encoding

Time of First Successful Submission: 2026-01-20 21:32:29

Hex-encoding UTF-8

Time of First Successful Submission: 2026-01-20 21:34:41

UTF Mixups

Time of First Successful Submission: 2026-01-20 21:43:12

Modifying Encoded Data

Time of First Successful Submission: 2026-01-20 21:50:45

Decoding Base64

Time of First Successful Submission: 2026-01-20 21:56:31

Encoding Base64

Time of First Successful Submission: 2026-01-20 21:58:19

Dealing with Obfuscation

Time of First Successful Submission: 2026-01-20 23:34:48

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-01-20 23:45:49

Your First HTTP Request

Time of First Successful Submission: 2026-01-21 04:34:01

Reading Flask

Time of First Successful Submission: 2026-01-21 04:40:02

Commented Data

Time of First Successful Submission: 2026-01-21 14:08:04

HTTP Metadata

Time of First Successful Submission: 2026-01-21 14:10:52

HTTP (netcat)

Time of First Successful Submission: 2026-01-21 14:32:40

HTTP Paths (netcat)

Time of First Successful Submission: 2026-01-21 14:34:24

HTTP (curl)

Time of First Successful Submission: 2026-01-21 14:37:12

HTTP (python)

Time of First Successful Submission: 2026-01-21 14:43:40

HTTP Host Header (python)

Time of First Successful Submission: 2026-01-21 14:51:01

HTTP Host Header (curl)

Time of First Successful Submission: 2026-01-21 14:52:57

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-01-21 14:58:22

URL Encoding (netcat)

Time of First Successful Submission: 2026-01-21 18:51:52

HTTP GET Parameters

Time of First Successful Submission: 2026-01-21 18:57:56

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-01-21 19:01:36

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-01-21 19:10:56

HTTP Forms

Time of First Successful Submission: 2026-01-21 19:14:30

HTTP Forms (curl)

Time of First Successful Submission: 2026-01-21 19:18:24

HTTP Forms (netcat)

Time of First Successful Submission: 2026-01-21 19:23:51

HTTP Forms (python)

Time of First Successful Submission: 2026-01-21 19:34:48

HTTP Forms Without Forms

Time of First Successful Submission: 2026-01-21 20:20:50

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-01-21 20:25:50

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-01-21 20:31:39

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-01-21 20:39:01

HTTP Redirects (curl)

Time of First Successful Submission: 2026-01-21 20:41:26

HTTP Redirects (python)

Time of First Successful Submission: 2026-01-21 20:42:55

HTTP Cookies (curl)

Time of First Successful Submission: 2026-01-21 20:45:50

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-01-21 20:49:07

HTTP Cookies (python)

Time of First Successful Submission: 2026-01-21 20:51:32

Server State (python)

Time of First Successful Submission: 2026-01-21 20:56:17

Listening Web

Time of First Successful Submission: 2026-01-21 20:59:49

Speaking Redirects

Time of First Successful Submission: 2026-01-21 21:07:44

JavaScript Redirects

Time of First Successful Submission: 2026-01-21 21:23:22

Including JavaScript

Time of First Successful Submission: 2026-01-22 01:25:20

HTTP (javascript)

Time of First Successful Submission: 2026-01-22 16:50:30

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-01-22 16:55:02

HTTP Forms (javascript)

Time of First Successful Submission: 2026-01-22 17:01:09

SQL Queries

Time of First Successful Submission: 2026-01-22 17:06:15

Filtering SQL

Time of First Successful Submission: 2026-01-22 17:10:08

Choosing Columns

Time of First Successful Submission: 2026-01-22 17:13:19

Exclusionary Filtering

Time of First Successful Submission: 2026-01-22 17:17:29

Filtering Strings

Time of First Successful Submission: 2026-01-22 17:18:17

Filtering on Expressions

Time of First Successful Submission: 2026-01-22 17:21:10

SELECTing Expressions

Time of First Successful Submission: 2026-01-22 17:28:18

Composite Conditions

Time of First Successful Submission: 2026-01-22 17:31:40

Reaching Your LIMITs

Time of First Successful Submission: 2026-01-22 17:46:41

Querying Metadata

Time of First Successful Submission: 2026-01-22 17:50:22

GCA CTF

5 / 104 33093 / 44974

Using the Terminal

Time of First Successful Submission: 2026-01-13 18:20:32

Using the VSCode Workspace

Time of First Successful Submission: 2026-01-13 18:22:19

Using the GUI Desktop

Time of First Successful Submission: 2026-01-13 18:24:09

Pasting into the Desktop

Time of First Successful Submission: 2026-01-13 18:25:52

Restarting Challenges

Time of First Successful Submission: 2026-01-13 18:28:41