straw6

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Intro to Programming Languages

15 / 234 9530 / 32908


Commands

Time of First Successful Submission: 2026-03-30 09:03:49

Command Arguments

Time of First Successful Submission: 2026-03-30 09:04:23

Command History

Time of First Successful Submission: 2026-03-30 09:04:55

The Root Path

Time of First Successful Submission: 2026-03-30 09:06:47

Absolute Paths

Time of First Successful Submission: 2026-03-30 09:07:08

Changing position

Time of First Successful Submission: 2026-03-30 09:07:40

Changing to an Absolute Path

Time of First Successful Submission: 2026-03-30 09:08:34

Relative Paths

Time of First Successful Submission: 2026-03-30 09:09:10

Cat

Time of First Successful Submission: 2026-03-30 09:16:32

Ls

Time of First Successful Submission: 2026-03-30 09:19:06

Ls All

Time of First Successful Submission: 2026-03-30 09:22:22

Find

Time of First Successful Submission: 2026-03-30 09:33:36

Piping Echo

Time of First Successful Submission: 2026-03-30 10:11:17

Piping Stdout

Time of First Successful Submission: 2026-03-30 10:11:44

Piping Stdin

Time of First Successful Submission: 2026-03-30 10:14:31


Intro to Cybersecurity

174 / 183 324 / 20437


Path Traversal 1

Time of First Successful Submission: 2026-04-03 04:33:09

Path Traversal 2

Time of First Successful Submission: 2026-04-03 04:41:08

CMDi 1

Time of First Successful Submission: 2026-04-03 04:54:39

CMDi 2

Time of First Successful Submission: 2026-04-03 04:57:19

CMDi 3

Time of First Successful Submission: 2026-04-03 04:59:14

CMDi 4

Time of First Successful Submission: 2026-04-03 05:00:55

CMDi 5

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

CMDi 6

Time of First Successful Submission: 2026-04-03 05:37:48

Authentication Bypass 1

Time of First Successful Submission: 2026-04-03 05:40:56

Authentication Bypass 2

Time of First Successful Submission: 2026-04-03 05:41:55

SQLi 1

Time of First Successful Submission: 2026-04-03 05:49:49

SQLi 2

Time of First Successful Submission: 2026-04-04 13:43:26

SQLi 3

Time of First Successful Submission: 2026-04-04 13:47:29

SQLi 4

Time of First Successful Submission: 2026-04-04 13:51:02

SQLi 5

Time of First Successful Submission: 2026-04-04 14:15:39

XSS 1

Time of First Successful Submission: 2026-04-04 14:20:49

XSS 2

Time of First Successful Submission: 2026-04-04 14:22:45

XSS 3

Time of First Successful Submission: 2026-04-04 14:25:40

XSS 4

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

XSS 5

Time of First Successful Submission: 2026-04-04 14:41:19

XSS 6

Time of First Successful Submission: 2026-04-04 14:48:59

XSS 7

Time of First Successful Submission: 2026-04-04 15:06:50

CSRF 1

Time of First Successful Submission: 2026-04-04 15:19:01

CSRF 2

Time of First Successful Submission: 2026-04-04 15:31:15

CSRF 3

Time of First Successful Submission: 2026-04-04 15:37:27

CSRF 4

Time of First Successful Submission: 2026-04-04 15:46:57

CSRF 5

Time of First Successful Submission: 2026-04-04 15:59:09

Connect

Time of First Successful Submission: 2026-04-04 16:01:49

Send

Time of First Successful Submission: 2026-04-04 16:02:37

Shutdown

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

Listen

Time of First Successful Submission: 2026-04-04 16:05:26

Scan 1

Time of First Successful Submission: 2026-04-04 16:13:14

Scan 2

Time of First Successful Submission: 2026-04-04 16:39:44

Monitor 1

Time of First Successful Submission: 2026-04-04 16:42:44

Monitor 2

Time of First Successful Submission: 2026-04-04 16:47:47

Sniffing Cookies

Time of First Successful Submission: 2026-04-05 07:50:33

Network Configuration

Time of First Successful Submission: 2026-04-05 08:17:31

Firewall 1

Time of First Successful Submission: 2026-04-05 08:27:12

Firewall 2

Time of First Successful Submission: 2026-04-05 08:28:03

Firewall 3

Time of First Successful Submission: 2026-04-05 09:02:15

Denial of Service 1

Time of First Successful Submission: 2026-04-05 09:24:32

Denial of Service 2

Time of First Successful Submission: 2026-04-05 09:30:33

Denial of Service 3

Time of First Successful Submission: 2026-04-05 09:55:08

Ethernet

Time of First Successful Submission: 2026-04-05 10:27:43

IP

Time of First Successful Submission: 2026-04-05 10:29:23

TCP

Time of First Successful Submission: 2026-04-05 10:33:17

TCP Handshake

Time of First Successful Submission: 2026-04-05 10:40:33

UDP

Time of First Successful Submission: 2026-04-05 10:52:27

UDP 2

Time of First Successful Submission: 2026-04-05 10:54:30

UDP Spoofing 1

Time of First Successful Submission: 2026-04-05 10:59:25

UDP Spoofing 2

Time of First Successful Submission: 2026-04-05 11:11:41

UDP Spoofing 3

Time of First Successful Submission: 2026-04-05 14:53:57

UDP Spoofing 4

Time of First Successful Submission: 2026-04-05 15:07:55

ARP

Time of First Successful Submission: 2026-04-05 15:19:29

Intercept

Time of First Successful Submission: 2026-04-05 16:09:16

Man-in-the-Middle

Time of First Successful Submission: 2026-04-05 18:02:18

XOR

Time of First Successful Submission: 2026-04-05 18:04:15

XORing Hex

Time of First Successful Submission: 2026-04-05 18:10:11

XORing ASCII

Time of First Successful Submission: 2026-04-05 18:20:07

XORing ASCII Strings

Time of First Successful Submission: 2026-04-05 18:27:55

One-time Pad

Time of First Successful Submission: 2026-04-05 18:31:20

One-time Pad Tampering

Time of First Successful Submission: 2026-04-05 18:41:12

Many-time Pad

Time of First Successful Submission: 2026-04-05 18:48:01

AES

Time of First Successful Submission: 2026-04-06 06:49:43

AES-ECB-CPA

Time of First Successful Submission: 2026-04-06 07:43:56

AES-ECB-CPA-HTTP

Time of First Successful Submission: 2026-04-06 08:01:15

AES-ECB-CPA-HTTP (base64)

Time of First Successful Submission: 2026-04-06 08:02:25

AES-ECB-CPA-Suffix

Time of First Successful Submission: 2026-04-06 08:16:25

AES-ECB-CPA-Prefix

Time of First Successful Submission: 2026-04-06 08:51:43

AES-ECB-CPA-Prefix-2

Time of First Successful Submission: 2026-04-06 09:08:17

AES-ECB-CPA-Prefix-Miniboss

Time of First Successful Submission: 2026-04-06 09:34:01

AES-ECB-CPA-Prefix-Boss

Time of First Successful Submission: 2026-04-06 10:02:20

AES-CBC

Time of First Successful Submission: 2026-04-06 10:06:22

AES-CBC Tampering

Time of First Successful Submission: 2026-04-06 10:24:49

AES-CBC Resizing

Time of First Successful Submission: 2026-04-06 10:28:27

AES-CBC-POA-Partial-Block

Time of First Successful Submission: 2026-04-06 13:22:41

AES-CBC-POA-Full-Block

Time of First Successful Submission: 2026-04-06 13:41:30

AES-CBC-POA-Multi-Block

Time of First Successful Submission: 2026-04-06 13:43:44

AES-CBC-POA-Encrypt

Time of First Successful Submission: 2026-04-06 14:25:28

AES-CBC-POA-Encrypt-2

Time of First Successful Submission: 2026-04-06 14:29:53

DHKE

Time of First Successful Submission: 2026-04-06 14:46:39

DHKE-to-AES

Time of First Successful Submission: 2026-04-06 14:59:03

RSA 1

Time of First Successful Submission: 2026-04-06 15:44:38

RSA 2

Time of First Successful Submission: 2026-04-06 16:06:38

RSA 3

Time of First Successful Submission: 2026-04-06 16:09:37

RSA 4

Time of First Successful Submission: 2026-04-06 16:20:21

RSA Signatures

Time of First Successful Submission: 2026-04-06 16:32:06

SHA 1

Time of First Successful Submission: 2026-04-06 16:57:22

SHA 2

Time of First Successful Submission: 2026-04-06 17:20:32

TLS 1

Time of First Successful Submission: 2026-04-06 18:30:37

TLS 2

Time of First Successful Submission: 2026-04-07 08:23:55

level1

Time of First Successful Submission: 2026-04-07 08:26:22

level2

Time of First Successful Submission: 2026-04-07 08:26:53

level3

Time of First Successful Submission: 2026-04-07 08:27:25

level4

Time of First Successful Submission: 2026-04-07 08:27:49

level5

Time of First Successful Submission: 2026-04-07 08:30:13

level6

Time of First Successful Submission: 2026-04-07 08:32:12

level7

Time of First Successful Submission: 2026-04-07 08:33:11

level8

Time of First Successful Submission: 2026-04-07 08:33:48

level9

Time of First Successful Submission: 2026-04-07 08:34:40

level10

Time of First Successful Submission: 2026-04-07 08:37:27

level11

Time of First Successful Submission: 2026-04-07 08:39:33

level12

Time of First Successful Submission: 2026-04-07 08:41:19

level13

Time of First Successful Submission: 2026-04-07 08:44:05

level14

Time of First Successful Submission: 2026-04-07 08:44:43

level15

Time of First Successful Submission: 2026-04-07 08:46:44

level16

Time of First Successful Submission: 2026-04-07 08:47:33

level17

Time of First Successful Submission: 2026-04-07 08:56:06

level18

Time of First Successful Submission: 2026-04-07 08:57:36

level19

Time of First Successful Submission: 2026-04-07 09:00:16

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2026-04-08 14:44:34

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2026-04-08 15:21:29

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2026-04-08 15:25:51

Reading Endianness (Python)

Time of First Successful Submission: 2026-04-08 15:39:05

Reading Endianness (C)

Time of First Successful Submission: 2026-04-08 15:41:49

Reading Endianness (x86)

Time of First Successful Submission: 2026-04-08 15:47:02

Version Information (Python)

Time of First Successful Submission: 2026-04-08 15:50:55

Version Information (C)

Time of First Successful Submission: 2026-04-08 15:55:40

Version Information (x86)

Time of First Successful Submission: 2026-04-08 15:59:36

Metadata and Data (Python)

Time of First Successful Submission: 2026-04-08 16:04:43

Metadata and Data (C)

Time of First Successful Submission: 2026-04-08 16:10:49

Metadata and Data (x86)

Time of First Successful Submission: 2026-04-08 16:15:43

Input Restrictions (Python)

Time of First Successful Submission: 2026-04-08 16:23:31

Input Restrictions (C)

Time of First Successful Submission: 2026-04-08 16:26:41

Input Restrictions (x86)

Time of First Successful Submission: 2026-04-08 16:29:19

Behold the cIMG! (Python)

Time of First Successful Submission: 2026-04-09 09:33:39

Behold the cIMG! (C)

Time of First Successful Submission: 2026-04-09 09:45:40

Behold the cIMG! (x86)

Time of First Successful Submission: 2026-04-09 14:19:27

A Basic cIMG (Python)

Time of First Successful Submission: 2026-04-09 14:27:50

A Basic cIMG (C)

Time of First Successful Submission: 2026-04-09 14:30:53

A Basic cIMG (x86)

Time of First Successful Submission: 2026-04-09 14:33:50

Internal State Mini (C)

Time of First Successful Submission: 2026-04-09 15:17:26

Internal State Mini (x86)

Time of First Successful Submission: 2026-04-09 15:24:08

Internal State (C)

Time of First Successful Submission: 2026-04-09 16:15:02

Internal State (x86)

Time of First Successful Submission: 2026-04-09 16:21:56

File Formats: Directives (C)

Time of First Successful Submission: 2026-04-18 11:34:00

File Formats: Directives (x86)

Time of First Successful Submission: 2026-04-18 11:42:27

The Patch Directive

Time of First Successful Submission: 2026-04-18 15:31:21

Optimizing for Space

Time of First Successful Submission: 2026-04-18 17:05:38

Tweaking Images

Time of First Successful Submission: 2026-04-18 17:37:05

Storage and Retrieval

Time of First Successful Submission: 2026-04-19 12:28:47

Extracting Knowledge

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

Advanced Sprites

Time of First Successful Submission: 2026-04-19 15:44:03

Accessing Resources

Time of First Successful Submission: 2026-04-19 16:20:32

Unsafe Animations

Time of First Successful Submission: 2026-04-20 01:35:22

Animations

Time of First Successful Submission: 2026-04-20 02:48:00

Interoperability: Patching Data

Time of First Successful Submission: 2026-04-20 03:22:26

Patching Code

Time of First Successful Submission: 2026-04-20 03:53:46

Patching Control Flow

Time of First Successful Submission: 2026-04-20 04:09:11

Your First Overflow (easy)

Time of First Successful Submission: 2026-04-20 04:35:18

Your First Overflow (hard)

Time of First Successful Submission: 2026-04-20 04:36:55

Precision (easy)

Time of First Successful Submission: 2026-04-20 04:38:41

Precision (hard)

Time of First Successful Submission: 2026-04-20 06:18:41

Variable Control (easy)

Time of First Successful Submission: 2026-04-20 07:05:18

Variable Control (hard)

Time of First Successful Submission: 2026-04-20 07:08:30

Control Hijack (easy)

Time of First Successful Submission: 2026-04-20 07:21:21

Control Hijack (hard)

Time of First Successful Submission: 2026-04-20 07:29:43

Tricky Control Hijack (easy)

Time of First Successful Submission: 2026-04-20 07:46:18

Tricky Control Hijack (hard)

Time of First Successful Submission: 2026-04-20 07:50:47

PIEs (easy)

Time of First Successful Submission: 2026-04-25 10:06:34

PIEs (hard)

Time of First Successful Submission: 2026-04-25 10:10:36

String Lengths (easy)

Time of First Successful Submission: 2026-04-25 10:31:01

String Lengths (hard)

Time of First Successful Submission: 2026-04-25 10:43:32

Basic Shellcode

Time of First Successful Submission: 2026-04-25 11:14:09

NOP Sleds

Time of First Successful Submission: 2026-04-25 11:22:56

NULL-Free Shellcode

Time of First Successful Submission: 2026-04-25 11:57:57

Hijack to (Mapped) Shellcode (easy)

Time of First Successful Submission: 2026-04-25 13:00:43

Hijack to (Mapped) Shellcode (hard)

Time of First Successful Submission: 2026-04-25 15:23:49

Hijack to Shellcode (easy)

Time of First Successful Submission: 2026-04-25 15:33:04

Hijack to Shellcode (hard)

Time of First Successful Submission: 2026-04-25 15:57:42

ECB-to-Win (easy)

Time of First Successful Submission: 2026-04-25 16:52:11

ECB-to-Win (hard)

Time of First Successful Submission: 2026-04-25 18:05:42

ECB-to-Shellcode (easy)

Time of First Successful Submission: 2026-04-26 06:51:15

ECB-to-Shellcode (hard)

Time of First Successful Submission: 2026-04-26 07:38:25


Start Here

12 / 12 1947 / 44531


Using the Terminal

Time of First Successful Submission: 2026-03-30 08:36:50

Using the VSCode Workspace

Time of First Successful Submission: 2026-03-30 08:38:03

Using the GUI Desktop

Time of First Successful Submission: 2026-03-30 08:40:11

Pasting into the Desktop

Time of First Successful Submission: 2026-03-30 08:41:25

Restarting Challenges

Time of First Successful Submission: 2026-03-30 08:45:18

Challenge Programs

Time of First Successful Submission: 2026-03-30 08:48:49

The Flag File

Time of First Successful Submission: 2026-03-30 08:50:36

Using Privileged Mode

Time of First Successful Submission: 2026-03-30 08:52:56

Persistent Home Directories - One

Time of First Successful Submission: 2026-03-30 08:55:12

Persistent Home Directories - Two

Time of First Successful Submission: 2026-03-30 08:59:14


Linux Luminarium

128 / 128 2640 / 33340


Intro to Commands

Time of First Successful Submission: 2026-03-30 09:03:49

Intro to Arguments

Time of First Successful Submission: 2026-03-30 09:04:23

Command History

Time of First Successful Submission: 2026-03-30 09:04:55

The Root

Time of First Successful Submission: 2026-03-30 09:06:47

Program and absolute paths

Time of First Successful Submission: 2026-03-30 09:07:08

Position thy self

Time of First Successful Submission: 2026-03-30 09:07:40

Position elsewhere

Time of First Successful Submission: 2026-03-30 09:08:34

implicit relative paths, from /

Time of First Successful Submission: 2026-03-30 09:09:10

explicit relative paths, from /

Time of First Successful Submission: 2026-03-30 09:09:48

implicit relative path

Time of First Successful Submission: 2026-03-30 09:10:41

home sweet home

Time of First Successful Submission: 2026-03-30 09:15:33

cat: not the pet, but the command!

Time of First Successful Submission: 2026-03-30 09:16:32

catting absolute paths

Time of First Successful Submission: 2026-03-30 09:16:53

more catting practice

Time of First Successful Submission: 2026-03-30 09:17:30

grepping for a needle in a haystack

Time of First Successful Submission: 2026-03-30 09:18:12

comparing files

Time of First Successful Submission: 2026-03-30 09:18:42

listing files

Time of First Successful Submission: 2026-03-30 09:19:06

touching files

Time of First Successful Submission: 2026-03-30 09:19:36

removing files

Time of First Successful Submission: 2026-03-30 09:19:57

moving files

Time of First Successful Submission: 2026-03-30 09:20:25

copying files

Time of First Successful Submission: 2026-03-30 09:21:49

hidden files

Time of First Successful Submission: 2026-03-30 09:22:22

An Epic Filesystem Quest

Time of First Successful Submission: 2026-03-30 09:27:05

making directories

Time of First Successful Submission: 2026-03-30 09:27:47

finding files

Time of First Successful Submission: 2026-03-30 09:33:36

linking files

Time of First Successful Submission: 2026-03-30 09:35:27

Learning From Documentation

Time of First Successful Submission: 2026-03-30 09:36:11

Learning Complex Usage

Time of First Successful Submission: 2026-03-30 09:37:03

Reading Manuals

Time of First Successful Submission: 2026-03-30 09:38:38

Searching Manuals

Time of First Successful Submission: 2026-03-30 09:44:31

Searching For Manuals

Time of First Successful Submission: 2026-03-30 09:55:01

Helpful Programs

Time of First Successful Submission: 2026-03-30 09:56:57

Help for Builtins

Time of First Successful Submission: 2026-03-30 09:58:23

Matching with *

Time of First Successful Submission: 2026-03-30 09:59:40

Matching with ?

Time of First Successful Submission: 2026-03-30 10:02:15

Matching with []

Time of First Successful Submission: 2026-03-30 10:04:01

Matching paths with []

Time of First Successful Submission: 2026-03-30 10:04:37

Multiple globs

Time of First Successful Submission: 2026-03-30 10:05:16

Mixing globs

Time of First Successful Submission: 2026-03-30 10:06:04

Exclusionary globbing

Time of First Successful Submission: 2026-03-30 10:07:18

Tab completion

Time of First Successful Submission: 2026-03-30 10:08:05

Multiple options for tab completion

Time of First Successful Submission: 2026-03-30 10:10:12

Tab completion on commands

Time of First Successful Submission: 2026-03-30 10:10:30

Redirecting output

Time of First Successful Submission: 2026-03-30 10:11:17

Redirecting more output

Time of First Successful Submission: 2026-03-30 10:11:44

Appending output

Time of First Successful Submission: 2026-03-30 10:12:39

Redirecting errors

Time of First Successful Submission: 2026-03-30 10:13:37

Redirecting input

Time of First Successful Submission: 2026-03-30 10:14:31

Grepping stored results

Time of First Successful Submission: 2026-03-30 10:15:17

Grepping live output

Time of First Successful Submission: 2026-03-30 10:15:55

Grepping errors

Time of First Successful Submission: 2026-03-30 10:16:55

Filtering with grep -v

Time of First Successful Submission: 2026-03-30 10:17:25

Filtering with sed

Time of First Successful Submission: 2026-03-30 10:18:01

Duplicating piped data with tee

Time of First Successful Submission: 2026-03-30 10:21:18

Process substitution for input

Time of First Successful Submission: 2026-03-30 10:23:16

Writing to multiple programs

Time of First Successful Submission: 2026-03-30 14:56:50

Split-piping stderr and stdout

Time of First Successful Submission: 2026-03-30 15:00:10

Named pipes

Time of First Successful Submission: 2026-03-30 15:03:11

Printing Variables

Time of First Successful Submission: 2026-03-30 15:03:59

Setting Variables

Time of First Successful Submission: 2026-03-30 15:04:35

Multi-word Variables

Time of First Successful Submission: 2026-03-30 15:05:23

Exporting Variables

Time of First Successful Submission: 2026-03-30 15:06:22

Printing Exported Variables

Time of First Successful Submission: 2026-03-30 15:06:47

Storing Command Output

Time of First Successful Submission: 2026-03-30 15:10:12

Reading Input

Time of First Successful Submission: 2026-03-30 15:11:30

Reading Files

Time of First Successful Submission: 2026-03-30 15:16:15

Translating characters

Time of First Successful Submission: 2026-03-30 15:17:16

Deleting characters

Time of First Successful Submission: 2026-03-30 15:18:01

Deleting newlines

Time of First Successful Submission: 2026-03-30 15:18:47

Extracting the first lines with head

Time of First Successful Submission: 2026-03-30 15:22:21

Extracting specific sections of text

Time of First Successful Submission: 2026-03-30 15:24:00

Sorting data

Time of First Successful Submission: 2026-03-30 15:25:13

Listing Processes

Time of First Successful Submission: 2026-03-30 15:27:28

Killing Processes

Time of First Successful Submission: 2026-03-30 15:28:16

Interrupting Processes

Time of First Successful Submission: 2026-03-30 15:29:17

Killing Misbehaving Processes

Time of First Successful Submission: 2026-03-30 15:31:35

Suspending Processes

Time of First Successful Submission: 2026-03-30 15:32:13

Resuming Processes

Time of First Successful Submission: 2026-03-30 15:32:36

Backgrounding Processes

Time of First Successful Submission: 2026-03-30 15:36:46

Foregrounding Processes

Time of First Successful Submission: 2026-03-30 15:37:46

Starting Backgrounded Processes

Time of First Successful Submission: 2026-03-30 15:38:08

Process Exit Codes

Time of First Successful Submission: 2026-03-30 15:39:46

Becoming root with su

Time of First Successful Submission: 2026-03-31 01:16:29

Other users with su

Time of First Successful Submission: 2026-03-31 01:16:54

Cracking passwords

Time of First Successful Submission: 2026-03-31 01:18:44

Using sudo

Time of First Successful Submission: 2026-03-31 01:19:58

Changing File Ownership

Time of First Successful Submission: 2026-03-31 01:23:14

Groups and Files

Time of First Successful Submission: 2026-03-31 01:25:48

Fun With Groups Names

Time of First Successful Submission: 2026-03-31 01:26:37

Changing Permissions

Time of First Successful Submission: 2026-03-31 01:31:05

Executable Files

Time of First Successful Submission: 2026-03-31 01:32:40

Permission Tweaking Practice

Time of First Successful Submission: 2026-03-31 01:37:27

Permissions Setting Practice

Time of First Successful Submission: 2026-03-31 01:39:13

The SUID Bit

Time of First Successful Submission: 2026-03-31 01:40:44

Chaining with Semicolons

Time of First Successful Submission: 2026-03-31 01:41:27

Building on Success

Time of First Successful Submission: 2026-03-31 01:42:26

Handling Failure

Time of First Successful Submission: 2026-03-31 01:42:47

Your First Shell Script

Time of First Successful Submission: 2026-03-31 01:44:37

Redirecting Script Output

Time of First Successful Submission: 2026-03-31 01:47:15

Executable Shell Scripts

Time of First Successful Submission: 2026-03-31 01:48:20

Understanding Shebangs

Time of First Successful Submission: 2026-03-31 01:49:35

Scripting with Arguments

Time of First Successful Submission: 2026-03-31 01:51:04

Scripting with Conditionals

Time of First Successful Submission: 2026-03-31 01:53:44

Scripting with Default Cases

Time of First Successful Submission: 2026-03-31 01:54:51

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-03-31 01:56:55

Reading Shell Scripts

Time of First Successful Submission: 2026-03-31 01:57:44

Launching Screen

Time of First Successful Submission: 2026-03-31 02:00:50

Detaching and Attaching

Time of First Successful Submission: 2026-03-31 02:02:29

Finding Sessions

Time of First Successful Submission: 2026-03-31 02:03:54

Switching Windows

Time of First Successful Submission: 2026-03-31 02:05:03

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-03-31 02:05:53

Switching Windows (tmux)

Time of First Successful Submission: 2026-03-31 02:06:50

The PATH Variable

Time of First Successful Submission: 2026-03-31 02:50:39

Setting PATH

Time of First Successful Submission: 2026-03-31 02:56:58

Finding Commands

Time of First Successful Submission: 2026-03-31 02:57:58

Adding Commands

Time of First Successful Submission: 2026-03-31 03:01:50

Hijacking Commands

Time of First Successful Submission: 2026-03-31 03:04:50

Bashrc Backdoor

Time of First Successful Submission: 2026-03-31 03:11:22

Sniffing Input

Time of First Successful Submission: 2026-03-31 03:15:45

Overshared Directories

Time of First Successful Submission: 2026-03-31 03:18:28

Tricky Linking

Time of First Successful Submission: 2026-03-31 03:24:46

Sniffing Process Arguments

Time of First Successful Submission: 2026-03-31 03:26:14

Snooping on Configurations

Time of First Successful Submission: 2026-03-31 03:27:29

The Fork Bomb

Time of First Successful Submission: 2026-03-31 03:37:40

Disk-Space Doomsday

Time of First Successful Submission: 2026-03-31 03:40:21

rm -rf /

Time of First Successful Submission: 2026-03-31 03:43:53

Life after rm -rf /

Time of First Successful Submission: 2026-03-31 03:50:38

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-03-31 03:54:19


Computing 101

94 / 94 339 / 22064


Your First Register

Time of First Successful Submission: 2026-03-31 05:24:31

Your First Syscall

Time of First Successful Submission: 2026-03-31 05:28:23

Exit Codes

Time of First Successful Submission: 2026-03-31 05:29:42

Building Executables

Time of First Successful Submission: 2026-03-31 05:33:19

Moving Between Registers

Time of First Successful Submission: 2026-03-31 05:37:53

Loading From Memory

Time of First Successful Submission: 2026-03-31 05:47:33

More Loading Practice

Time of First Successful Submission: 2026-03-31 05:48:45

Dereferencing Pointers

Time of First Successful Submission: 2026-03-31 05:50:42

Dereferencing Yourself

Time of First Successful Submission: 2026-03-31 05:51:49

Dereferencing with Offsets

Time of First Successful Submission: 2026-03-31 05:53:01

Stored Addresses

Time of First Successful Submission: 2026-03-31 05:55:11

Double Dereference

Time of First Successful Submission: 2026-03-31 05:56:14

The Stack

Time of First Successful Submission: 2026-03-31 06:03:17

Stack Offsets

Time of First Successful Submission: 2026-03-31 06:04:26

Program Arguments on the Stack

Time of First Successful Submission: 2026-03-31 06:06:41

Popping From the Stack

Time of First Successful Submission: 2026-03-31 06:09:37

Disassembling Programs

Time of First Successful Submission: 2026-03-31 06:22:16

Tracing Syscalls

Time of First Successful Submission: 2026-03-31 06:23:41

Starting GDB

Time of First Successful Submission: 2026-03-31 06:24:25

Quitting GDB

Time of First Successful Submission: 2026-03-31 06:24:49

Starting Programs in GDB

Time of First Successful Submission: 2026-03-31 06:26:41

Disassembling in GDB

Time of First Successful Submission: 2026-03-31 06:27:20

Stepping Through Instructions

Time of First Successful Submission: 2026-03-31 06:28:20

Reading Register Values

Time of First Successful Submission: 2026-03-31 06:29:25

Popping Stack Values

Time of First Successful Submission: 2026-03-31 06:31:34

Examining Memory

Time of First Successful Submission: 2026-03-31 06:32:43

Examining Stack Pointers

Time of First Successful Submission: 2026-03-31 06:34:39

Cooperative Debugging

Time of First Successful Submission: 2026-03-31 06:37:21

Writing Output

Time of First Successful Submission: 2026-03-31 06:46:00

Chaining Syscalls

Time of First Successful Submission: 2026-03-31 06:46:48

Writing Strings

Time of First Successful Submission: 2026-03-31 06:47:26

Reading Data

Time of First Successful Submission: 2026-03-31 06:51:43

Opening Files

Time of First Successful Submission: 2026-03-31 06:57:13

Hardcoding the Filename

Time of First Successful Submission: 2026-03-31 07:07:44

Comparing Values

Time of First Successful Submission: 2026-03-31 07:14:54

Comparing Characters

Time of First Successful Submission: 2026-03-31 07:17:16

Conditional Control Flow

Time of First Successful Submission: 2026-03-31 07:26:16

Comparing Strings

Time of First Successful Submission: 2026-03-31 07:28:34

Reverse the Password

Time of First Successful Submission: 2026-03-31 07:32:03

Conditionals Without Conditionals

Time of First Successful Submission: 2026-03-31 07:52:42

Looping

Time of First Successful Submission: 2026-03-31 07:57:55

Reverse the Calculation

Time of First Successful Submission: 2026-03-31 08:00:47

Reverse the Reverse

Time of First Successful Submission: 2026-03-31 08:02:00

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-03-31 08:03:48

Loops on Data

Time of First Successful Submission: 2026-03-31 08:05:07

set-register

Time of First Successful Submission: 2026-03-31 08:14:09

set-multiple-registers

Time of First Successful Submission: 2026-03-31 08:15:23

add-to-register

Time of First Successful Submission: 2026-03-31 08:16:05

linear-equation-registers

Time of First Successful Submission: 2026-03-31 08:17:02

integer-division

Time of First Successful Submission: 2026-03-31 08:18:59

modulo-operation

Time of First Successful Submission: 2026-03-31 08:20:04

set-upper-byte

Time of First Successful Submission: 2026-03-31 08:21:34

efficient-modulo

Time of First Successful Submission: 2026-03-31 08:23:54

byte-extraction

Time of First Successful Submission: 2026-03-31 08:28:33

bitwise-and

Time of First Successful Submission: 2026-03-31 08:30:04

check-even

Time of First Successful Submission: 2026-03-31 08:36:02

memory-read

Time of First Successful Submission: 2026-03-31 08:40:32

memory-write

Time of First Successful Submission: 2026-03-31 08:41:20

memory-increment

Time of First Successful Submission: 2026-03-31 08:42:50

byte-access

Time of First Successful Submission: 2026-03-31 08:43:55

memory-size-access

Time of First Successful Submission: 2026-03-31 08:45:56

little-endian-write

Time of First Successful Submission: 2026-03-31 08:58:45

memory-sum

Time of First Successful Submission: 2026-03-31 09:07:46

stack-subtraction

Time of First Successful Submission: 2026-03-31 09:09:20

swap-stack-values

Time of First Successful Submission: 2026-03-31 09:09:59

average-stack-values

Time of First Successful Submission: 2026-03-31 09:15:03

absolute-jump

Time of First Successful Submission: 2026-03-31 09:18:20

relative-jump

Time of First Successful Submission: 2026-03-31 09:27:05

jump-trampoline

Time of First Successful Submission: 2026-03-31 09:30:05

conditional-jump

Time of First Successful Submission: 2026-03-31 09:59:04

indirect-jump

Time of First Successful Submission: 2026-03-31 10:13:11

average-loop

Time of First Successful Submission: 2026-03-31 15:06:15

count-non-zero

Time of First Successful Submission: 2026-03-31 15:10:17

string-lower

Time of First Successful Submission: 2026-03-31 15:27:30

most-common-byte

Time of First Successful Submission: 2026-04-01 14:16:41

Exit

Time of First Successful Submission: 2026-04-01 14:40:09

Socket

Time of First Successful Submission: 2026-04-01 15:04:52

Bind

Time of First Successful Submission: 2026-04-02 03:22:32

Listen

Time of First Successful Submission: 2026-04-02 03:28:53

Accept

Time of First Successful Submission: 2026-04-02 03:33:29

Static Response

Time of First Successful Submission: 2026-04-02 03:55:23

Dynamic Response

Time of First Successful Submission: 2026-04-02 05:59:01

Iterative GET Server

Time of First Successful Submission: 2026-04-02 06:02:28

Concurrent GET Server

Time of First Successful Submission: 2026-04-02 06:20:09

Concurrent POST Server

Time of First Successful Submission: 2026-04-02 07:03:05

Web Server

Time of First Successful Submission: 2026-04-02 07:04:18

Debugging Programs

Time of First Successful Submission: 2026-04-02 07:10:42

Inspecting Registers

Time of First Successful Submission: 2026-04-02 07:11:57

Examining Memory

Time of First Successful Submission: 2026-04-02 07:23:16

Setting Breakpoints

Time of First Successful Submission: 2026-04-02 07:42:23

GDB Scripting

Time of First Successful Submission: 2026-04-02 07:51:12

Modifying Data

Time of First Successful Submission: 2026-04-02 08:12:40

Modifying Execution

Time of First Successful Submission: 2026-04-02 08:19:07

Broken Functions

Time of First Successful Submission: 2026-04-02 08:25:48


Playing With Programs

116 / 116 859 / 23615


What's the password?

Time of First Successful Submission: 2026-04-02 08:27:26

... and again!

Time of First Successful Submission: 2026-04-02 08:27:54

Newline Troubles

Time of First Successful Submission: 2026-04-02 08:29:39

Reasoning about files

Time of First Successful Submission: 2026-04-02 08:32:21

Specifying Filenames

Time of First Successful Submission: 2026-04-02 08:33:46

Binary and Hex Encoding

Time of First Successful Submission: 2026-04-02 08:40:24

More Hex

Time of First Successful Submission: 2026-04-02 08:43:58

Decoding Hex

Time of First Successful Submission: 2026-04-02 08:48:35

Decoding Practice

Time of First Successful Submission: 2026-04-02 08:49:57

Encoding Practice

Time of First Successful Submission: 2026-04-02 08:54:10

Hex-encoding ASCII

Time of First Successful Submission: 2026-04-02 08:58:40

Nested Encoding

Time of First Successful Submission: 2026-04-02 09:01:36

Hex-encoding UTF-8

Time of First Successful Submission: 2026-04-02 09:02:53

UTF Mixups

Time of First Successful Submission: 2026-04-02 09:09:03

Modifying Encoded Data

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

Decoding Base64

Time of First Successful Submission: 2026-04-02 09:14:35

Encoding Base64

Time of First Successful Submission: 2026-04-02 09:15:41

Dealing with Obfuscation

Time of First Successful Submission: 2026-04-02 09:17:11

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-04-02 09:28:59

Your First HTTP Request

Time of First Successful Submission: 2026-04-02 09:31:27

Reading Flask

Time of First Successful Submission: 2026-04-02 09:33:57

Commented Data

Time of First Successful Submission: 2026-04-02 09:35:32

HTTP Metadata

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

HTTP (netcat)

Time of First Successful Submission: 2026-04-02 09:41:43

HTTP Paths (netcat)

Time of First Successful Submission: 2026-04-02 09:42:40

HTTP (curl)

Time of First Successful Submission: 2026-04-02 09:44:29

HTTP (python)

Time of First Successful Submission: 2026-04-02 09:46:30

HTTP Host Header (python)

Time of First Successful Submission: 2026-04-02 09:49:34

HTTP Host Header (curl)

Time of First Successful Submission: 2026-04-02 09:50:46

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-04-02 09:52:28

URL Encoding (netcat)

Time of First Successful Submission: 2026-04-02 09:55:25

HTTP GET Parameters

Time of First Successful Submission: 2026-04-02 09:56:41

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-04-02 09:58:17

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-04-02 09:59:07

HTTP Forms

Time of First Successful Submission: 2026-04-02 10:00:19

HTTP Forms (curl)

Time of First Successful Submission: 2026-04-02 10:00:58

HTTP Forms (netcat)

Time of First Successful Submission: 2026-04-02 10:03:36

HTTP Forms (python)

Time of First Successful Submission: 2026-04-02 10:08:22

HTTP Forms Without Forms

Time of First Successful Submission: 2026-04-02 11:49:26

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-04-02 11:50:47

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-04-02 11:54:31

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-04-02 11:56:46

HTTP Redirects (curl)

Time of First Successful Submission: 2026-04-02 11:57:25

HTTP Redirects (python)

Time of First Successful Submission: 2026-04-02 11:58:00

HTTP Cookies (curl)

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

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-04-02 12:34:57

HTTP Cookies (python)

Time of First Successful Submission: 2026-04-02 12:36:21

Server State (python)

Time of First Successful Submission: 2026-04-02 12:37:49

Listening Web

Time of First Successful Submission: 2026-04-02 12:40:48

Speaking Redirects

Time of First Successful Submission: 2026-04-02 12:45:17

JavaScript Redirects

Time of First Successful Submission: 2026-04-02 12:50:12

Including JavaScript

Time of First Successful Submission: 2026-04-02 13:10:59

HTTP (javascript)

Time of First Successful Submission: 2026-04-02 13:17:51

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-04-02 13:20:37

HTTP Forms (javascript)

Time of First Successful Submission: 2026-04-02 13:28:00

cat

Time of First Successful Submission: 2026-04-02 13:28:54

more

Time of First Successful Submission: 2026-04-02 13:29:13

less

Time of First Successful Submission: 2026-04-02 13:29:29

tail

Time of First Successful Submission: 2026-04-02 13:29:47

head

Time of First Successful Submission: 2026-04-02 13:30:02

sort

Time of First Successful Submission: 2026-04-02 13:30:20

vim

Time of First Successful Submission: 2026-04-02 13:30:34

emacs

Time of First Successful Submission: 2026-04-02 13:30:51

nano

Time of First Successful Submission: 2026-04-02 13:31:09

rev

Time of First Successful Submission: 2026-04-02 13:31:35

od

Time of First Successful Submission: 2026-04-02 13:37:24

hd

Time of First Successful Submission: 2026-04-02 13:39:10

xxd

Time of First Successful Submission: 2026-04-02 13:40:31

base32

Time of First Successful Submission: 2026-04-02 13:41:34

base64

Time of First Successful Submission: 2026-04-02 13:42:00

split

Time of First Successful Submission: 2026-04-02 13:43:25

gzip

Time of First Successful Submission: 2026-04-02 13:48:38

bzip2

Time of First Successful Submission: 2026-04-02 13:49:47

zip

Time of First Successful Submission: 2026-04-02 13:57:27

tar

Time of First Successful Submission: 2026-04-02 14:00:03

ar

Time of First Successful Submission: 2026-04-02 14:13:19

cpio

Time of First Successful Submission: 2026-04-02 14:18:07

genisoimage

Time of First Successful Submission: 2026-04-02 14:25:34

env

Time of First Successful Submission: 2026-04-02 14:27:30

find

Time of First Successful Submission: 2026-04-02 14:34:53

make

Time of First Successful Submission: 2026-04-02 14:38:00

nice

Time of First Successful Submission: 2026-04-02 14:38:39

timeout

Time of First Successful Submission: 2026-04-02 14:39:49

stdbuf

Time of First Successful Submission: 2026-04-02 14:40:54

setarch

Time of First Successful Submission: 2026-04-02 14:41:58

watch

Time of First Successful Submission: 2026-04-02 14:49:04

socat

Time of First Successful Submission: 2026-04-02 14:51:15

whiptail

Time of First Successful Submission: 2026-04-02 14:55:24

awk

Time of First Successful Submission: 2026-04-02 14:57:15

sed

Time of First Successful Submission: 2026-04-02 14:58:04

ed

Time of First Successful Submission: 2026-04-02 14:58:31

chown

Time of First Successful Submission: 2026-04-02 14:59:05

chmod

Time of First Successful Submission: 2026-04-02 14:59:25

cp

Time of First Successful Submission: 2026-04-02 15:03:19

mv

Time of First Successful Submission: 2026-04-02 15:37:26

perl

Time of First Successful Submission: 2026-04-02 15:40:16

python

Time of First Successful Submission: 2026-04-02 15:40:50

ruby

Time of First Successful Submission: 2026-04-02 15:42:21

bash

Time of First Successful Submission: 2026-04-02 15:44:51

date

Time of First Successful Submission: 2026-04-02 15:50:43

dmesg

Time of First Successful Submission: 2026-04-02 15:52:41

wc

Time of First Successful Submission: 2026-04-02 15:55:05

gcc

Time of First Successful Submission: 2026-04-02 15:56:40

as

Time of First Successful Submission: 2026-04-02 15:57:53

wget

Time of First Successful Submission: 2026-04-02 16:12:59

ssh-keygen

Time of First Successful Submission: 2026-04-02 16:20:35

SQL Queries

Time of First Successful Submission: 2026-04-02 16:44:37

Filtering SQL

Time of First Successful Submission: 2026-04-02 16:45:28

Choosing Columns

Time of First Successful Submission: 2026-04-02 16:46:19

Exclusionary Filtering

Time of First Successful Submission: 2026-04-02 16:47:02

Filtering Strings

Time of First Successful Submission: 2026-04-02 16:50:26

Filtering on Expressions

Time of First Successful Submission: 2026-04-02 16:53:21

SELECTing Expressions

Time of First Successful Submission: 2026-04-03 04:18:01

Composite Conditions

Time of First Successful Submission: 2026-04-03 04:24:45

Reaching Your LIMITs

Time of First Successful Submission: 2026-04-03 04:26:18

Querying Metadata

Time of First Successful Submission: 2026-04-03 04:28:01


GCA CTF

12 / 104 2192 / 44812


Using the Terminal

Time of First Successful Submission: 2026-03-30 08:36:50

Using the VSCode Workspace

Time of First Successful Submission: 2026-03-30 08:38:03

Using the GUI Desktop

Time of First Successful Submission: 2026-03-30 08:40:11

Pasting into the Desktop

Time of First Successful Submission: 2026-03-30 08:41:25

Connecting over SSH

Time of First Successful Submission: 2026-03-30 08:43:45

Restarting Challenges

Time of First Successful Submission: 2026-03-30 08:45:18

Getting Help

Time of First Successful Submission: 2026-03-30 08:47:34

Challenge Programs

Time of First Successful Submission: 2026-03-30 08:48:49

The Flag File

Time of First Successful Submission: 2026-03-30 08:50:36

Using Privileged Mode

Time of First Successful Submission: 2026-03-30 08:52:56

Persistent Home Directories - One

Time of First Successful Submission: 2026-03-30 08:55:12

Persistent Home Directories - Two

Time of First Successful Submission: 2026-03-30 08:59:14