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level1

Time of First Successful Submission: 2026-04-30 03:22:14

Intro to Programming Languages

15 / 234 9113 / 33031

Commands

Time of First Successful Submission: 2026-03-07 04:10:14

Command Arguments

Time of First Successful Submission: 2026-03-07 04:11:58

Command History

Time of First Successful Submission: 2026-03-07 04:12:44

The Root Path

Time of First Successful Submission: 2026-03-08 11:04:48

Absolute Paths

Time of First Successful Submission: 2026-03-08 11:09:35

Changing position

Time of First Successful Submission: 2026-03-08 11:10:28

Changing to an Absolute Path

Time of First Successful Submission: 2026-03-08 11:13:23

Relative Paths

Time of First Successful Submission: 2026-03-08 11:14:17

Cat

Time of First Successful Submission: 2026-03-08 11:22:48

Ls

Time of First Successful Submission: 2026-03-08 11:27:51

Ls All

Time of First Successful Submission: 2026-03-08 11:31:35

Find

Time of First Successful Submission: 2026-03-08 11:43:26

Piping Echo

Time of First Successful Submission: 2026-03-09 18:29:46

Piping Stdout

Time of First Successful Submission: 2026-03-09 18:41:45

Piping Stdin

Time of First Successful Submission: 2026-03-09 18:45:52

The Art of the Shell

3 / 55 220 / 507

The Transient Path

Time of First Successful Submission: 2026-03-11 12:48:57

Ferocious Functionality

Time of First Successful Submission: 2026-03-11 12:54:03

The Surprising Swap

Time of First Successful Submission: 2026-03-11 13:32:33

Intro to Cybersecurity

183 / 183 200 / 20483

Path Traversal 1

Time of First Successful Submission: 2026-03-07 01:50:14

Path Traversal 2

Time of First Successful Submission: 2026-03-07 01:57:05

CMDi 1

Time of First Successful Submission: 2026-03-07 02:10:02

CMDi 2

Time of First Successful Submission: 2026-03-07 03:23:49

CMDi 3

Time of First Successful Submission: 2026-03-07 03:26:59

CMDi 4

Time of First Successful Submission: 2026-03-07 03:29:57

CMDi 5

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

CMDi 6

Time of First Successful Submission: 2026-03-07 03:43:05

Authentication Bypass 1

Time of First Successful Submission: 2026-03-07 04:02:37

Authentication Bypass 2

Time of First Successful Submission: 2026-03-07 04:04:42

SQLi 1

Time of First Successful Submission: 2026-03-08 20:44:16

SQLi 2

Time of First Successful Submission: 2026-03-08 20:46:24

SQLi 3

Time of First Successful Submission: 2026-03-08 20:50:17

SQLi 4

Time of First Successful Submission: 2026-03-08 20:55:06

SQLi 5

Time of First Successful Submission: 2026-03-08 21:19:39

XSS 1

Time of First Successful Submission: 2026-03-09 19:15:31

XSS 2

Time of First Successful Submission: 2026-03-30 12:35:56

XSS 3

Time of First Successful Submission: 2026-03-30 12:38:35

XSS 4

Time of First Successful Submission: 2026-03-30 12:43:39

XSS 5

Time of First Successful Submission: 2026-03-30 12:50:39

XSS 6

Time of First Successful Submission: 2026-03-30 12:54:40

XSS 7

Time of First Successful Submission: 2026-03-30 13:07:29

CSRF 1

Time of First Successful Submission: 2026-03-30 13:17:24

CSRF 2

Time of First Successful Submission: 2026-03-30 13:23:34

CSRF 3

Time of First Successful Submission: 2026-03-30 13:37:01

CSRF 4

Time of First Successful Submission: 2026-03-30 13:43:52

CSRF 5

Time of First Successful Submission: 2026-03-30 13:51:02

Connect

Time of First Successful Submission: 2026-03-30 17:03:28

Send

Time of First Successful Submission: 2026-03-30 17:04:58

Shutdown

Time of First Successful Submission: 2026-03-30 17:09:25

Listen

Time of First Successful Submission: 2026-03-30 17:09:52

Scan 1

Time of First Successful Submission: 2026-03-30 17:18:32

Scan 2

Time of First Successful Submission: 2026-03-30 17:22:05

Monitor 1

Time of First Successful Submission: 2026-03-30 17:31:56

Monitor 2

Time of First Successful Submission: 2026-03-30 18:08:37

Sniffing Cookies

Time of First Successful Submission: 2026-03-31 14:29:55

Network Configuration

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

Firewall 1

Time of First Successful Submission: 2026-03-31 14:34:39

Firewall 2

Time of First Successful Submission: 2026-03-31 14:38:34

Firewall 3

Time of First Successful Submission: 2026-03-31 14:40:08

Denial of Service 1

Time of First Successful Submission: 2026-03-31 14:49:16

Denial of Service 2

Time of First Successful Submission: 2026-03-31 14:58:27

Denial of Service 3

Time of First Successful Submission: 2026-03-31 15:22:27

Ethernet

Time of First Successful Submission: 2026-04-01 05:37:22

IP

Time of First Successful Submission: 2026-04-02 02:50:21

TCP

Time of First Successful Submission: 2026-04-02 03:14:06

TCP Handshake

Time of First Successful Submission: 2026-04-02 03:15:32

UDP

Time of First Successful Submission: 2026-04-02 05:42:11

UDP 2

Time of First Successful Submission: 2026-04-02 06:07:13

UDP Spoofing 1

Time of First Successful Submission: 2026-04-02 06:13:05

UDP Spoofing 2

Time of First Successful Submission: 2026-04-02 06:16:46

UDP Spoofing 3

Time of First Successful Submission: 2026-04-02 06:44:38

UDP Spoofing 4

Time of First Successful Submission: 2026-04-02 16:06:17

ARP

Time of First Successful Submission: 2026-04-02 16:11:34

Intercept

Time of First Successful Submission: 2026-04-02 16:43:13

Man-in-the-Middle

Time of First Successful Submission: 2026-04-02 17:47:54

XOR

Time of First Successful Submission: 2026-03-11 12:45:52

XORing Hex

Time of First Successful Submission: 2026-04-03 09:24:58

XORing ASCII

Time of First Successful Submission: 2026-04-03 16:42:37

XORing ASCII Strings

Time of First Successful Submission: 2026-04-04 18:54:19

One-time Pad

Time of First Successful Submission: 2026-04-04 19:07:09

One-time Pad Tampering

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

Many-time Pad

Time of First Successful Submission: 2026-04-05 06:04:33

AES

Time of First Successful Submission: 2026-04-05 06:16:26

AES-ECB-CPA

Time of First Successful Submission: 2026-04-05 08:45:41

AES-ECB-CPA-HTTP

Time of First Successful Submission: 2026-04-05 10:14:12

AES-ECB-CPA-HTTP (base64)

Time of First Successful Submission: 2026-04-05 10:19:14

AES-ECB-CPA-Suffix

Time of First Successful Submission: 2026-04-05 10:32:28

AES-ECB-CPA-Prefix

Time of First Successful Submission: 2026-04-05 16:15:17

AES-ECB-CPA-Prefix-2

Time of First Successful Submission: 2026-04-06 14:34:03

AES-ECB-CPA-Prefix-Miniboss

Time of First Successful Submission: 2026-04-06 15:03:44

AES-ECB-CPA-Prefix-Boss

Time of First Successful Submission: 2026-04-06 15:18:45

AES-CBC

Time of First Successful Submission: 2026-04-08 12:03:09

AES-CBC Tampering

Time of First Successful Submission: 2026-04-09 13:32:42

AES-CBC Resizing

Time of First Successful Submission: 2026-04-09 16:58:49

AES-CBC-POA-Partial-Block

Time of First Successful Submission: 2026-04-10 05:57:09

AES-CBC-POA-Full-Block

Time of First Successful Submission: 2026-04-10 07:02:58

AES-CBC-POA-Multi-Block

Time of First Successful Submission: 2026-04-10 07:33:17

AES-CBC-POA-Encrypt

Time of First Successful Submission: 2026-04-10 08:02:41

AES-CBC-POA-Encrypt-2

Time of First Successful Submission: 2026-04-10 08:20:03

DHKE

Time of First Successful Submission: 2026-04-10 08:57:52

DHKE-to-AES

Time of First Successful Submission: 2026-04-10 11:27:46

RSA 1

Time of First Successful Submission: 2026-04-10 11:51:32

RSA 2

Time of First Successful Submission: 2026-04-10 11:56:15

RSA 3

Time of First Successful Submission: 2026-04-10 12:14:29

RSA 4

Time of First Successful Submission: 2026-04-10 12:27:24

RSA Signatures

Time of First Successful Submission: 2026-04-10 12:40:00

SHA 1

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

SHA 2

Time of First Successful Submission: 2026-04-10 15:09:15

TLS 1

Time of First Successful Submission: 2026-04-10 15:41:01

TLS 2

Time of First Successful Submission: 2026-04-10 16:22:01

level1

Time of First Successful Submission: 2026-04-10 19:02:34

level2

Time of First Successful Submission: 2026-04-10 19:02:52

level3

Time of First Successful Submission: 2026-04-10 19:03:22

level4

Time of First Successful Submission: 2026-04-10 19:03:40

level5

Time of First Successful Submission: 2026-04-10 19:06:28

level6

Time of First Successful Submission: 2026-04-10 19:10:01

level7

Time of First Successful Submission: 2026-04-10 19:11:17

level8

Time of First Successful Submission: 2026-04-10 19:11:44

level9

Time of First Successful Submission: 2026-04-10 19:12:20

level10

Time of First Successful Submission: 2026-04-10 19:13:47

level11

Time of First Successful Submission: 2026-04-10 19:17:01

level12

Time of First Successful Submission: 2026-04-10 19:18:21

level13

Time of First Successful Submission: 2026-04-10 19:22:32

level14

Time of First Successful Submission: 2026-04-10 19:26:23

level15

Time of First Successful Submission: 2026-04-10 19:26:51

level16

Time of First Successful Submission: 2026-04-10 19:31:00

level17

Time of First Successful Submission: 2026-04-10 19:32:42

level18

Time of First Successful Submission: 2026-04-10 19:35:06

level19

Time of First Successful Submission: 2026-04-10 19:37:20

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2026-04-11 17:05:46

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2026-04-12 08:27:57

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2026-04-12 08:31:53

Reading Endianness (Python)

Time of First Successful Submission: 2026-04-12 08:48:30

Reading Endianness (C)

Time of First Successful Submission: 2026-04-12 08:54:03

Reading Endianness (x86)

Time of First Successful Submission: 2026-04-12 08:56:54

Version Information (Python)

Time of First Successful Submission: 2026-04-12 09:03:56

Version Information (C)

Time of First Successful Submission: 2026-04-12 09:26:47

Version Information (x86)

Time of First Successful Submission: 2026-04-12 09:27:24

Metadata and Data (Python)

Time of First Successful Submission: 2026-04-12 09:33:03

Metadata and Data (C)

Time of First Successful Submission: 2026-04-12 09:41:13

Metadata and Data (x86)

Time of First Successful Submission: 2026-04-12 09:43:11

Input Restrictions (Python)

Time of First Successful Submission: 2026-04-12 14:11:47

Input Restrictions (C)

Time of First Successful Submission: 2026-04-12 14:16:05

Input Restrictions (x86)

Time of First Successful Submission: 2026-04-12 14:46:36

Behold the cIMG! (Python)

Time of First Successful Submission: 2026-04-13 06:05:53

Behold the cIMG! (C)

Time of First Successful Submission: 2026-04-13 06:31:32

Behold the cIMG! (x86)

Time of First Successful Submission: 2026-04-13 06:37:36

A Basic cIMG (Python)

Time of First Successful Submission: 2026-04-13 06:46:55

A Basic cIMG (C)

Time of First Successful Submission: 2026-04-13 06:49:55

A Basic cIMG (x86)

Time of First Successful Submission: 2026-04-13 07:08:40

Internal State Mini (C)

Time of First Successful Submission: 2026-04-13 07:25:05

Internal State Mini (x86)

Time of First Successful Submission: 2026-04-13 08:12:25

Internal State (C)

Time of First Successful Submission: 2026-04-13 08:55:21

Internal State (x86)

Time of First Successful Submission: 2026-04-13 09:13:40

File Formats: Directives (C)

Time of First Successful Submission: 2026-04-13 12:08:05

File Formats: Directives (x86)

Time of First Successful Submission: 2026-04-13 12:23:16

The Patch Directive

Time of First Successful Submission: 2026-04-14 12:16:49

Optimizing for Space

Time of First Successful Submission: 2026-04-14 13:29:38

Tweaking Images

Time of First Successful Submission: 2026-04-14 14:17:41

Storage and Retrieval

Time of First Successful Submission: 2026-04-14 16:22:50

Extracting Knowledge

Time of First Successful Submission: 2026-04-15 09:56:00

Advanced Sprites

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

Accessing Resources

Time of First Successful Submission: 2026-04-17 06:22:20

Unsafe Animations

Time of First Successful Submission: 2026-04-17 07:26:42

Animations

Time of First Successful Submission: 2026-04-18 17:01:39

Interoperability: Patching Data

Time of First Successful Submission: 2026-04-18 17:34:18

Patching Code

Time of First Successful Submission: 2026-04-18 18:09:17

Patching Control Flow

Time of First Successful Submission: 2026-04-18 18:15:40

Your First Overflow (easy)

Time of First Successful Submission: 2026-04-19 09:11:01

Your First Overflow (hard)

Time of First Successful Submission: 2026-04-19 09:19:59

Precision (easy)

Time of First Successful Submission: 2026-04-20 06:07:14

Precision (hard)

Time of First Successful Submission: 2026-04-20 07:29:32

Variable Control (easy)

Time of First Successful Submission: 2026-04-20 08:00:30

Variable Control (hard)

Time of First Successful Submission: 2026-04-20 08:04:58

Control Hijack (easy)

Time of First Successful Submission: 2026-04-20 08:15:13

Control Hijack (hard)

Time of First Successful Submission: 2026-04-20 17:11:26

Tricky Control Hijack (easy)

Time of First Successful Submission: 2026-04-21 07:38:01

Tricky Control Hijack (hard)

Time of First Successful Submission: 2026-04-21 07:46:31

PIEs (easy)

Time of First Successful Submission: 2026-04-21 14:13:30

PIEs (hard)

Time of First Successful Submission: 2026-04-21 15:02:16

String Lengths (easy)

Time of First Successful Submission: 2026-04-21 15:41:28

String Lengths (hard)

Time of First Successful Submission: 2026-04-21 15:45:00

Basic Shellcode

Time of First Successful Submission: 2026-04-22 10:19:33

NOP Sleds

Time of First Successful Submission: 2026-04-22 10:35:34

NULL-Free Shellcode

Time of First Successful Submission: 2026-04-22 10:36:20

Hijack to (Mapped) Shellcode (easy)

Time of First Successful Submission: 2026-04-22 10:49:40

Hijack to (Mapped) Shellcode (hard)

Time of First Successful Submission: 2026-04-22 10:54:45

Hijack to Shellcode (easy)

Time of First Successful Submission: 2026-04-22 12:16:36

Hijack to Shellcode (hard)

Time of First Successful Submission: 2026-04-22 14:30:44

ECB-to-Win (easy)

Time of First Successful Submission: 2026-04-23 06:26:12

ECB-to-Win (hard)

Time of First Successful Submission: 2026-04-23 06:37:48

ECB-to-Shellcode (easy)

Time of First Successful Submission: 2026-04-23 06:43:51

ECB-to-Shellcode (hard)

Time of First Successful Submission: 2026-04-23 09:42:33

CIMG Screenshots

Time of First Successful Submission: 2026-04-23 17:51:33

CIMG Screenshots 2

Time of First Successful Submission: 2026-04-24 07:17:45

Wily Webserver

Time of First Successful Submission: 2026-04-25 07:32:45

The Watering Hole

Time of First Successful Submission: 2026-04-25 09:02:44

Secure Chat 1

Time of First Successful Submission: 2026-04-26 16:13:26

Secure Chat 2

Time of First Successful Submission: 2026-04-28 07:54:01

Secure Chat 3

Time of First Successful Submission: 2026-04-28 19:17:55

Secure Chat 4

Time of First Successful Submission: 2026-04-29 14:51:27

Secure Chat 5

Time of First Successful Submission: 2026-04-30 03:09:10

Program Security

9 / 162 5633 / 9754

ello ackers!

Time of First Successful Submission: 2026-04-30 06:34:48

Syscall Smuggler

Time of First Successful Submission: 2026-04-30 07:53:47

Syscall Shenanigans

Time of First Successful Submission: 2026-04-30 08:02:38

Byte Budget

Time of First Successful Submission: 2026-04-30 09:40:44

ClobberCode

Time of First Successful Submission: 2026-04-30 09:46:39

Diverse Delivery

Time of First Successful Submission: 2026-04-30 09:53:35

Pocket Payload

Time of First Successful Submission: 2026-04-30 10:34:12

Micro Menace

Time of First Successful Submission: 2026-04-30 10:48:04

Loose Link (Easy)

Time of First Successful Submission: 2026-03-23 08:08:44

Start Here

12 / 12 1548 / 44681

Using the Terminal

Time of First Successful Submission: 2026-03-06 05:52:59

Using the VSCode Workspace

Time of First Successful Submission: 2026-03-06 05:54:29

Using the GUI Desktop

Time of First Successful Submission: 2026-03-06 05:57:23

Pasting into the Desktop

Time of First Successful Submission: 2026-03-06 05:58:05

Restarting Challenges

Time of First Successful Submission: 2026-03-06 06:01:03

Challenge Programs

Time of First Successful Submission: 2026-03-06 06:08:47

The Flag File

Time of First Successful Submission: 2026-03-06 06:13:09

Using Privileged Mode

Time of First Successful Submission: 2026-03-06 06:23:26

Persistent Home Directories - One

Time of First Successful Submission: 2026-03-06 06:24:36

Persistent Home Directories - Two

Time of First Successful Submission: 2026-03-06 06:24:57

Linux Luminarium

128 / 128 2404 / 33462

Intro to Commands

Time of First Successful Submission: 2026-03-07 04:10:14

Intro to Arguments

Time of First Successful Submission: 2026-03-07 04:11:58

Command History

Time of First Successful Submission: 2026-03-07 04:12:44

The Root

Time of First Successful Submission: 2026-03-08 11:04:48

Program and absolute paths

Time of First Successful Submission: 2026-03-08 11:09:35

Position thy self

Time of First Successful Submission: 2026-03-08 11:10:28

Position elsewhere

Time of First Successful Submission: 2026-03-08 11:13:23

implicit relative paths, from /

Time of First Successful Submission: 2026-03-08 11:14:17

explicit relative paths, from /

Time of First Successful Submission: 2026-03-08 11:14:52

implicit relative path

Time of First Successful Submission: 2026-03-08 11:15:30

home sweet home

Time of First Successful Submission: 2026-03-08 11:21:59

cat: not the pet, but the command!

Time of First Successful Submission: 2026-03-08 11:22:48

catting absolute paths

Time of First Successful Submission: 2026-03-08 11:23:24

more catting practice

Time of First Successful Submission: 2026-03-08 11:25:22

grepping for a needle in a haystack

Time of First Successful Submission: 2026-03-08 11:26:07

comparing files

Time of First Successful Submission: 2026-03-08 11:27:06

listing files

Time of First Successful Submission: 2026-03-08 11:27:51

touching files

Time of First Successful Submission: 2026-03-08 11:28:16

removing files

Time of First Successful Submission: 2026-03-08 11:28:40

moving files

Time of First Successful Submission: 2026-03-08 11:30:26

copying files

Time of First Successful Submission: 2026-03-08 11:31:08

hidden files

Time of First Successful Submission: 2026-03-08 11:31:35

An Epic Filesystem Quest

Time of First Successful Submission: 2026-03-08 11:37:40

making directories

Time of First Successful Submission: 2026-03-08 11:38:24

finding files

Time of First Successful Submission: 2026-03-08 11:43:26

linking files

Time of First Successful Submission: 2026-03-08 11:46:12

Learning From Documentation

Time of First Successful Submission: 2026-03-08 12:32:45

Learning Complex Usage

Time of First Successful Submission: 2026-03-08 12:33:35

Reading Manuals

Time of First Successful Submission: 2026-03-08 12:35:18

Searching Manuals

Time of First Successful Submission: 2026-03-08 12:35:54

Searching For Manuals

Time of First Successful Submission: 2026-03-08 12:37:05

Helpful Programs

Time of First Successful Submission: 2026-03-08 12:37:44

Help for Builtins

Time of First Successful Submission: 2026-03-08 12:38:17

Matching with *

Time of First Successful Submission: 2026-03-08 20:27:32

Matching with ?

Time of First Successful Submission: 2026-03-08 20:29:18

Matching with []

Time of First Successful Submission: 2026-03-08 20:30:04

Matching paths with []

Time of First Successful Submission: 2026-03-08 20:30:53

Multiple globs

Time of First Successful Submission: 2026-03-08 20:31:49

Mixing globs

Time of First Successful Submission: 2026-03-08 20:36:04

Exclusionary globbing

Time of First Successful Submission: 2026-03-08 20:37:33

Tab completion

Time of First Successful Submission: 2026-03-08 20:38:31

Multiple options for tab completion

Time of First Successful Submission: 2026-03-08 20:40:35

Tab completion on commands

Time of First Successful Submission: 2026-03-08 20:40:49

Redirecting output

Time of First Successful Submission: 2026-03-09 18:29:46

Redirecting more output

Time of First Successful Submission: 2026-03-09 18:41:45

Appending output

Time of First Successful Submission: 2026-03-09 18:42:52

Redirecting errors

Time of First Successful Submission: 2026-03-09 18:43:37

Redirecting input

Time of First Successful Submission: 2026-03-09 18:45:52

Grepping stored results

Time of First Successful Submission: 2026-03-09 18:47:35

Grepping live output

Time of First Successful Submission: 2026-03-09 18:47:52

Grepping errors

Time of First Successful Submission: 2026-03-09 18:48:34

Filtering with grep -v

Time of First Successful Submission: 2026-03-09 18:49:02

Filtering with sed

Time of First Successful Submission: 2026-03-09 18:50:02

Duplicating piped data with tee

Time of First Successful Submission: 2026-03-09 18:51:52

Process substitution for input

Time of First Successful Submission: 2026-03-09 18:54:44

Writing to multiple programs

Time of First Successful Submission: 2026-03-09 18:57:07

Split-piping stderr and stdout

Time of First Successful Submission: 2026-03-09 19:00:24

Named pipes

Time of First Successful Submission: 2026-03-09 19:08:24

Printing Variables

Time of First Successful Submission: 2026-03-11 06:13:17

Setting Variables

Time of First Successful Submission: 2026-03-11 06:13:40

Multi-word Variables

Time of First Successful Submission: 2026-03-11 06:14:13

Exporting Variables

Time of First Successful Submission: 2026-03-11 06:20:46

Printing Exported Variables

Time of First Successful Submission: 2026-03-11 06:21:17

Storing Command Output

Time of First Successful Submission: 2026-03-11 06:22:21

Reading Input

Time of First Successful Submission: 2026-03-11 06:23:26

Reading Files

Time of First Successful Submission: 2026-03-11 06:25:05

Translating characters

Time of First Successful Submission: 2026-03-07 04:16:02

Deleting characters

Time of First Successful Submission: 2026-03-07 04:16:33

Deleting newlines

Time of First Successful Submission: 2026-03-07 04:16:55

Extracting the first lines with head

Time of First Successful Submission: 2026-03-07 04:18:08

Extracting specific sections of text

Time of First Successful Submission: 2026-03-07 04:19:21

Sorting data

Time of First Successful Submission: 2026-03-07 04:20:54

Listing Processes

Time of First Successful Submission: 2026-03-11 07:24:27

Killing Processes

Time of First Successful Submission: 2026-03-11 07:32:14

Interrupting Processes

Time of First Successful Submission: 2026-03-11 07:33:18

Killing Misbehaving Processes

Time of First Successful Submission: 2026-03-11 07:35:12

Suspending Processes

Time of First Successful Submission: 2026-03-11 07:35:52

Resuming Processes

Time of First Successful Submission: 2026-03-11 07:37:16

Backgrounding Processes

Time of First Successful Submission: 2026-03-11 07:38:42

Foregrounding Processes

Time of First Successful Submission: 2026-03-11 07:41:51

Starting Backgrounded Processes

Time of First Successful Submission: 2026-03-11 07:42:16

Process Exit Codes

Time of First Successful Submission: 2026-03-11 07:44:53

Becoming root with su

Time of First Successful Submission: 2026-03-11 08:13:51

Other users with su

Time of First Successful Submission: 2026-03-11 08:14:20

Cracking passwords

Time of First Successful Submission: 2026-03-11 08:16:42

Using sudo

Time of First Successful Submission: 2026-03-11 08:18:27

Changing File Ownership

Time of First Successful Submission: 2026-03-11 08:21:06

Groups and Files

Time of First Successful Submission: 2026-03-11 08:23:01

Fun With Groups Names

Time of First Successful Submission: 2026-03-11 08:23:59

Changing Permissions

Time of First Successful Submission: 2026-03-11 08:25:23

Executable Files

Time of First Successful Submission: 2026-03-11 08:25:41

Permission Tweaking Practice

Time of First Successful Submission: 2026-03-11 08:27:22

Permissions Setting Practice

Time of First Successful Submission: 2026-03-11 12:04:48

The SUID Bit

Time of First Successful Submission: 2026-03-11 12:43:11

Chaining with Semicolons

Time of First Successful Submission: 2026-03-11 17:24:49

Building on Success

Time of First Successful Submission: 2026-03-12 07:30:29

Handling Failure

Time of First Successful Submission: 2026-03-12 07:30:48

Your First Shell Script

Time of First Successful Submission: 2026-03-12 07:32:10

Redirecting Script Output

Time of First Successful Submission: 2026-03-12 07:33:57

Executable Shell Scripts

Time of First Successful Submission: 2026-03-12 07:34:55

Understanding Shebangs

Time of First Successful Submission: 2026-03-12 07:39:00

Scripting with Arguments

Time of First Successful Submission: 2026-03-12 07:39:33

Scripting with Conditionals

Time of First Successful Submission: 2026-03-12 07:40:45

Scripting with Default Cases

Time of First Successful Submission: 2026-03-12 07:41:15

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-03-12 07:42:22

Reading Shell Scripts

Time of First Successful Submission: 2026-03-12 07:43:03

Launching Screen

Time of First Successful Submission: 2026-03-12 07:46:33

Detaching and Attaching

Time of First Successful Submission: 2026-03-12 07:47:53

Finding Sessions

Time of First Successful Submission: 2026-03-12 07:49:02

Switching Windows

Time of First Successful Submission: 2026-03-12 07:50:27

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-03-12 07:51:19

Switching Windows (tmux)

Time of First Successful Submission: 2026-03-12 07:51:57

The PATH Variable

Time of First Successful Submission: 2026-03-12 07:55:54

Setting PATH

Time of First Successful Submission: 2026-03-12 07:57:27

Finding Commands

Time of First Successful Submission: 2026-03-12 07:58:21

Adding Commands

Time of First Successful Submission: 2026-03-12 08:02:03

Hijacking Commands

Time of First Successful Submission: 2026-03-12 08:03:14

Bashrc Backdoor

Time of First Successful Submission: 2026-03-12 08:05:01

Sniffing Input

Time of First Successful Submission: 2026-03-12 08:11:51

Overshared Directories

Time of First Successful Submission: 2026-03-12 08:18:40

Tricky Linking

Time of First Successful Submission: 2026-03-12 08:22:23

Sniffing Process Arguments

Time of First Successful Submission: 2026-03-12 08:23:50

Snooping on Configurations

Time of First Successful Submission: 2026-03-12 08:26:09

The Fork Bomb

Time of First Successful Submission: 2026-03-12 08:30:01

Disk-Space Doomsday

Time of First Successful Submission: 2026-03-12 08:33:16

rm -rf /

Time of First Successful Submission: 2026-03-12 08:41:09

Life after rm -rf /

Time of First Successful Submission: 2026-03-12 08:43:11

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-03-12 08:48:44

Computing 101

94 / 94 302 / 22103

Your First Register

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

Your First Syscall

Time of First Successful Submission: 2026-03-13 05:32:57

Exit Codes

Time of First Successful Submission: 2026-03-13 05:36:07

Building Executables

Time of First Successful Submission: 2026-03-13 05:41:11

Moving Between Registers

Time of First Successful Submission: 2026-03-16 05:24:50

Loading From Memory

Time of First Successful Submission: 2026-03-16 06:06:24

More Loading Practice

Time of First Successful Submission: 2026-03-16 11:01:46

Dereferencing Pointers

Time of First Successful Submission: 2026-03-16 11:20:38

Dereferencing Yourself

Time of First Successful Submission: 2026-03-16 11:29:40

Dereferencing with Offsets

Time of First Successful Submission: 2026-03-16 11:31:30

Stored Addresses

Time of First Successful Submission: 2026-03-16 11:33:57

Double Dereference

Time of First Successful Submission: 2026-03-16 11:35:25

The Stack

Time of First Successful Submission: 2026-03-16 11:40:50

Stack Offsets

Time of First Successful Submission: 2026-03-16 11:41:45

Program Arguments on the Stack

Time of First Successful Submission: 2026-03-16 11:42:56

Popping From the Stack

Time of First Successful Submission: 2026-03-16 11:44:58

Disassembling Programs

Time of First Successful Submission: 2026-03-17 03:00:02

Tracing Syscalls

Time of First Successful Submission: 2026-03-17 05:39:08

Starting GDB

Time of First Successful Submission: 2026-03-17 05:54:39

Quitting GDB

Time of First Successful Submission: 2026-03-17 07:01:30

Starting Programs in GDB

Time of First Successful Submission: 2026-03-17 07:15:18

Disassembling in GDB

Time of First Successful Submission: 2026-03-17 07:18:16

Stepping Through Instructions

Time of First Successful Submission: 2026-03-17 07:21:41

Reading Register Values

Time of First Successful Submission: 2026-03-17 07:22:26

Popping Stack Values

Time of First Successful Submission: 2026-03-17 07:24:03

Examining Memory

Time of First Successful Submission: 2026-03-17 07:25:00

Examining Stack Pointers

Time of First Successful Submission: 2026-03-17 07:27:08

Cooperative Debugging

Time of First Successful Submission: 2026-03-17 07:35:53

Writing Output

Time of First Successful Submission: 2026-03-17 08:53:16

Chaining Syscalls

Time of First Successful Submission: 2026-03-17 08:54:44

Writing Strings

Time of First Successful Submission: 2026-03-17 08:57:21

Reading Data

Time of First Successful Submission: 2026-03-17 09:02:09

Opening Files

Time of First Successful Submission: 2026-03-17 09:07:20

Hardcoding the Filename

Time of First Successful Submission: 2026-03-17 09:14:08

Comparing Values

Time of First Successful Submission: 2026-03-18 05:47:14

Comparing Characters

Time of First Successful Submission: 2026-03-18 05:53:21

Conditional Control Flow

Time of First Successful Submission: 2026-03-18 06:25:02

Comparing Strings

Time of First Successful Submission: 2026-03-18 06:50:30

Reverse the Password

Time of First Successful Submission: 2026-03-18 07:00:19

Conditionals Without Conditionals

Time of First Successful Submission: 2026-03-18 09:07:12

Looping

Time of First Successful Submission: 2026-03-18 10:54:21

Reverse the Calculation

Time of First Successful Submission: 2026-03-19 05:43:12

Reverse the Reverse

Time of First Successful Submission: 2026-03-19 05:46:46

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-03-19 05:51:59

Loops on Data

Time of First Successful Submission: 2026-03-19 05:57:55

set-register

Time of First Successful Submission: 2026-03-19 09:54:40

set-multiple-registers

Time of First Successful Submission: 2026-03-19 09:55:29

add-to-register

Time of First Successful Submission: 2026-03-19 09:56:42

linear-equation-registers

Time of First Successful Submission: 2026-03-19 10:01:05

integer-division

Time of First Successful Submission: 2026-03-19 10:06:03

modulo-operation

Time of First Successful Submission: 2026-03-19 10:11:47

set-upper-byte

Time of First Successful Submission: 2026-03-19 10:13:25

efficient-modulo

Time of First Successful Submission: 2026-03-19 10:15:50

byte-extraction

Time of First Successful Submission: 2026-03-19 10:42:32

bitwise-and

Time of First Successful Submission: 2026-03-19 10:45:05

check-even

Time of First Successful Submission: 2026-03-19 10:48:45

memory-read

Time of First Successful Submission: 2026-03-19 10:51:13

memory-write

Time of First Successful Submission: 2026-03-19 10:51:59

memory-increment

Time of First Successful Submission: 2026-03-19 10:53:23

byte-access

Time of First Successful Submission: 2026-03-19 10:55:41

memory-size-access

Time of First Successful Submission: 2026-03-19 10:57:44

little-endian-write

Time of First Successful Submission: 2026-03-19 11:00:03

memory-sum

Time of First Successful Submission: 2026-03-19 11:10:00

stack-subtraction

Time of First Successful Submission: 2026-03-19 11:10:58

swap-stack-values

Time of First Successful Submission: 2026-03-19 11:11:34

average-stack-values

Time of First Successful Submission: 2026-03-19 11:15:28

absolute-jump

Time of First Successful Submission: 2026-03-19 11:16:50

relative-jump

Time of First Successful Submission: 2026-03-19 11:23:20

jump-trampoline

Time of First Successful Submission: 2026-03-19 11:28:06

conditional-jump

Time of First Successful Submission: 2026-03-19 11:42:22

indirect-jump

Time of First Successful Submission: 2026-03-19 11:55:19

average-loop

Time of First Successful Submission: 2026-03-19 12:14:14

count-non-zero

Time of First Successful Submission: 2026-03-19 12:21:36

string-lower

Time of First Successful Submission: 2026-03-19 13:08:53

most-common-byte

Time of First Successful Submission: 2026-03-19 14:14:37

Exit

Time of First Successful Submission: 2026-03-20 08:28:18

Socket

Time of First Successful Submission: 2026-03-20 09:18:23

Bind

Time of First Successful Submission: 2026-03-20 17:48:23

Listen

Time of First Successful Submission: 2026-03-20 17:58:32

Accept

Time of First Successful Submission: 2026-03-20 18:01:11

Static Response

Time of First Successful Submission: 2026-03-20 19:06:27

Dynamic Response

Time of First Successful Submission: 2026-03-22 11:39:44

Iterative GET Server

Time of First Successful Submission: 2026-03-22 11:41:04

Concurrent GET Server

Time of First Successful Submission: 2026-03-22 11:51:06

Concurrent POST Server

Time of First Successful Submission: 2026-03-22 12:26:01

Web Server

Time of First Successful Submission: 2026-03-22 12:30:31

Debugging Programs

Time of First Successful Submission: 2026-03-23 02:34:06

Inspecting Registers

Time of First Successful Submission: 2026-03-23 02:37:00

Examining Memory

Time of First Successful Submission: 2026-03-23 02:45:56

Setting Breakpoints

Time of First Successful Submission: 2026-03-23 03:01:04

GDB Scripting

Time of First Successful Submission: 2026-03-23 06:30:37

Modifying Data

Time of First Successful Submission: 2026-03-23 07:23:16

Modifying Execution

Time of First Successful Submission: 2026-03-23 07:24:27

Broken Functions

Time of First Successful Submission: 2026-03-23 07:57:20

Playing With Programs

116 / 116 853 / 23640

What's the password?

Time of First Successful Submission: 2026-03-23 08:25:25

... and again!

Time of First Successful Submission: 2026-03-23 08:26:19

Newline Troubles

Time of First Successful Submission: 2026-03-23 08:28:22

Reasoning about files

Time of First Successful Submission: 2026-03-23 08:29:42

Specifying Filenames

Time of First Successful Submission: 2026-03-23 08:30:14

Binary and Hex Encoding

Time of First Successful Submission: 2026-03-23 08:41:51

More Hex

Time of First Successful Submission: 2026-03-23 08:42:29

Decoding Hex

Time of First Successful Submission: 2026-03-23 08:43:47

Decoding Practice

Time of First Successful Submission: 2026-03-23 08:49:21

Encoding Practice

Time of First Successful Submission: 2026-03-23 09:14:53

Hex-encoding ASCII

Time of First Successful Submission: 2026-03-23 09:34:46

Nested Encoding

Time of First Successful Submission: 2026-03-23 09:41:03

Hex-encoding UTF-8

Time of First Successful Submission: 2026-03-23 09:50:28

UTF Mixups

Time of First Successful Submission: 2026-03-23 09:56:24

Modifying Encoded Data

Time of First Successful Submission: 2026-03-23 11:06:42

Decoding Base64

Time of First Successful Submission: 2026-03-23 11:13:46

Encoding Base64

Time of First Successful Submission: 2026-03-23 11:14:37

Dealing with Obfuscation

Time of First Successful Submission: 2026-03-23 11:17:13

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-03-23 11:22:55

Your First HTTP Request

Time of First Successful Submission: 2026-03-24 11:18:07

Reading Flask

Time of First Successful Submission: 2026-03-24 15:04:44

Commented Data

Time of First Successful Submission: 2026-03-25 05:08:21

HTTP Metadata

Time of First Successful Submission: 2026-03-25 05:30:55

HTTP (netcat)

Time of First Successful Submission: 2026-03-25 05:49:40

HTTP Paths (netcat)

Time of First Successful Submission: 2026-03-25 06:13:10

HTTP (curl)

Time of First Successful Submission: 2026-03-25 06:26:57

HTTP (python)

Time of First Successful Submission: 2026-03-25 06:28:15

HTTP Host Header (python)

Time of First Successful Submission: 2026-03-25 06:41:19

HTTP Host Header (curl)

Time of First Successful Submission: 2026-03-25 07:31:07

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-03-25 07:32:56

URL Encoding (netcat)

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

HTTP GET Parameters

Time of First Successful Submission: 2026-03-25 08:10:21

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-03-25 08:26:58

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-03-25 08:28:05

HTTP Forms

Time of First Successful Submission: 2026-03-25 08:30:38

HTTP Forms (curl)

Time of First Successful Submission: 2026-03-25 08:31:48

HTTP Forms (netcat)

Time of First Successful Submission: 2026-03-25 08:57:37

HTTP Forms (python)

Time of First Successful Submission: 2026-03-25 09:03:50

HTTP Forms Without Forms

Time of First Successful Submission: 2026-03-25 13:21:39

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-03-25 13:24:31

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-03-25 16:42:06

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-03-25 16:52:57

HTTP Redirects (curl)

Time of First Successful Submission: 2026-03-25 16:53:38

HTTP Redirects (python)

Time of First Successful Submission: 2026-03-25 16:55:42

HTTP Cookies (curl)

Time of First Successful Submission: 2026-03-25 16:57:45

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-03-25 17:28:25

HTTP Cookies (python)

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

Server State (python)

Time of First Successful Submission: 2026-03-26 15:33:55

Listening Web

Time of First Successful Submission: 2026-03-26 15:38:09

Speaking Redirects

Time of First Successful Submission: 2026-03-26 16:22:49

JavaScript Redirects

Time of First Successful Submission: 2026-03-26 16:27:35

Including JavaScript

Time of First Successful Submission: 2026-03-26 16:37:34

HTTP (javascript)

Time of First Successful Submission: 2026-03-26 16:46:47

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-03-26 16:54:43

HTTP Forms (javascript)

Time of First Successful Submission: 2026-03-26 17:06:54

cat

Time of First Successful Submission: 2026-03-27 05:33:33

more

Time of First Successful Submission: 2026-03-27 05:36:22

less

Time of First Successful Submission: 2026-03-27 05:40:09

tail

Time of First Successful Submission: 2026-03-27 05:41:43

head

Time of First Successful Submission: 2026-03-27 05:42:03

sort

Time of First Successful Submission: 2026-03-27 05:43:45

vim

Time of First Successful Submission: 2026-03-27 05:45:21

emacs

Time of First Successful Submission: 2026-03-27 05:59:06

nano

Time of First Successful Submission: 2026-03-27 05:59:30

rev

Time of First Successful Submission: 2026-03-27 05:59:53

od

Time of First Successful Submission: 2026-03-27 06:10:33

hd

Time of First Successful Submission: 2026-03-27 06:21:54

xxd

Time of First Successful Submission: 2026-03-27 06:25:42

base32

Time of First Successful Submission: 2026-03-27 06:29:52

base64

Time of First Successful Submission: 2026-03-27 06:30:18

split

Time of First Successful Submission: 2026-03-27 06:34:56

gzip

Time of First Successful Submission: 2026-03-27 06:38:43

bzip2

Time of First Successful Submission: 2026-03-27 06:39:35

zip

Time of First Successful Submission: 2026-03-27 06:48:09

tar

Time of First Successful Submission: 2026-03-27 06:56:22

ar

Time of First Successful Submission: 2026-03-27 07:06:03

cpio

Time of First Successful Submission: 2026-03-27 07:09:08

genisoimage

Time of First Successful Submission: 2026-03-27 07:25:17

env

Time of First Successful Submission: 2026-03-28 14:45:27

find

Time of First Successful Submission: 2026-03-28 15:49:07

make

Time of First Successful Submission: 2026-03-28 15:50:10

nice

Time of First Successful Submission: 2026-03-28 15:50:32

timeout

Time of First Successful Submission: 2026-03-28 15:51:13

stdbuf

Time of First Successful Submission: 2026-03-28 15:52:08

setarch

Time of First Successful Submission: 2026-03-28 15:53:47

watch

Time of First Successful Submission: 2026-03-28 15:54:25

socat

Time of First Successful Submission: 2026-03-28 15:55:28

whiptail

Time of First Successful Submission: 2026-03-28 15:57:03

awk

Time of First Successful Submission: 2026-03-28 16:02:30

sed

Time of First Successful Submission: 2026-03-28 16:02:45

ed

Time of First Successful Submission: 2026-03-28 16:03:46

chown

Time of First Successful Submission: 2026-03-28 16:04:11

chmod

Time of First Successful Submission: 2026-03-28 16:04:29

cp

Time of First Successful Submission: 2026-03-28 16:05:00

mv

Time of First Successful Submission: 2026-03-28 16:48:29

perl

Time of First Successful Submission: 2026-03-28 16:52:38

python

Time of First Successful Submission: 2026-03-28 16:53:52

ruby

Time of First Successful Submission: 2026-03-28 16:55:15

bash

Time of First Successful Submission: 2026-03-28 16:58:25

date

Time of First Successful Submission: 2026-03-28 17:01:59

dmesg

Time of First Successful Submission: 2026-03-28 17:02:36

wc

Time of First Successful Submission: 2026-03-28 17:04:01

gcc

Time of First Successful Submission: 2026-03-28 17:13:19

as

Time of First Successful Submission: 2026-03-28 17:13:37

wget

Time of First Successful Submission: 2026-03-28 17:21:51

ssh-keygen

Time of First Successful Submission: 2026-03-28 17:50:33

SQL Queries

Time of First Successful Submission: 2026-03-29 07:35:43

Filtering SQL

Time of First Successful Submission: 2026-03-29 07:37:16

Choosing Columns

Time of First Successful Submission: 2026-03-29 07:38:16

Exclusionary Filtering

Time of First Successful Submission: 2026-03-29 07:38:57

Filtering Strings

Time of First Successful Submission: 2026-03-29 07:40:34

Filtering on Expressions

Time of First Successful Submission: 2026-03-29 07:41:52

SELECTing Expressions

Time of First Successful Submission: 2026-03-29 07:57:37

Composite Conditions

Time of First Successful Submission: 2026-03-29 08:01:56

Reaching Your LIMITs

Time of First Successful Submission: 2026-03-30 12:30:02

Querying Metadata

Time of First Successful Submission: 2026-03-30 12:31:35

Arizona CTF 2025

1 / 23 755 / 779

Hijack Me!

Time of First Successful Submission: 2026-03-11 12:48:57

GCA CTF

12 / 104 1815 / 44961

Using the Terminal

Time of First Successful Submission: 2026-03-06 05:52:59

Using the VSCode Workspace

Time of First Successful Submission: 2026-03-06 05:54:29

Using the GUI Desktop

Time of First Successful Submission: 2026-03-06 05:57:23

Pasting into the Desktop

Time of First Successful Submission: 2026-03-06 05:58:05

Connecting over SSH

Time of First Successful Submission: 2026-03-06 05:58:55

Restarting Challenges

Time of First Successful Submission: 2026-03-06 06:01:03

Getting Help

Time of First Successful Submission: 2026-03-06 06:02:59

Challenge Programs

Time of First Successful Submission: 2026-03-06 06:08:47

The Flag File

Time of First Successful Submission: 2026-03-06 06:13:09

Using Privileged Mode

Time of First Successful Submission: 2026-03-06 06:23:26

Persistent Home Directories - One

Time of First Successful Submission: 2026-03-06 06:24:36

Persistent Home Directories - Two

Time of First Successful Submission: 2026-03-06 06:24:57