PicoCTF2021-Writeup - GitLite

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PicoCTF2021-Writeup

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Solutions (that we managed to find) for the 2021 PicoCTF

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최종 버전 다운로드 (.zip)

- - README.md
  - script.py
  - vuln.c
- - in.py
  - README.md
- - dachshund.jpg
  - dachshund.py
  - README.md
- - invite.pdf
  - README.md
  - shattered-1.pdf
  - shattered-2.pdf
- - RSA.java
- - output.png
  - README.md
  - script.py
  - values
- - README.md
- - new_caesar.py
  - new_caesar_reverse_code.py
  - README.md
- - B16 Possible Values 1.png
  - b16 possible values 2.jpeg
  - b16 possible values 3.png
  - new_vignere.py
  - new_vignere_solve.py
  - README.md
- - README.md
  - scrambled1.png
  - scrambled2.png
  - solved.bmp
- - playfair.py
  - playfair_solve.py
  - README.md
- - README.md
- - README.md
- - cat.jpg
  - information.xml
  - README.md
- - Forensics is fun.pptm
  - README.md
- - dolls.jpg
  - README.md
  - script.py
- - flag.png
  - README.md
- - files.png
  - flag.txt
  - instructions.txt
  - picture1.bmp
  - picture2.bmp
  - picture3.bmp
  - plan
  - program.deb
  - README.md
  - tftp.pcapng
- - flag.png
  - notaflag.png
  - README.md
  - tunn3l_v1s10n
- - README.md
  - view.png
  - weird.docm
- - README.md
  - screenshot.png
  - shark1.pcapng
- - README.md
- - README.md
- - flag
  - README.md
- - ende.py
  - flag.txt.en
  - pw.txt
  - README.md
- - README.md
- - Addadshashanammu.zip
  - fang-of-haynekhtnamet
  - README.md
- - README.md
- - crackme.py
  - README.md
- - keygenme-trial.py
  - README.md
- - README.md
  - script.py
  - source
- - flag.png
  - instructions.gcode
  - README.md
- - enc
  - README.md
- - README.md
  - stuff.js
- - flag.png
  - home.png
  - README.md
- - page.html
  - README.md
- - erase.pdf
  - hello.pdf
  - README.md
  - source.php
- - README.md
- - README.md
- - JIFxzHyW8W
  - README.md
- - flag.png
  - README.md
  - user-agent.png
.gitattributes
_config.yml
LICENSE
README.md

// repository documentation

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# PicoCTF2021-Writeup
For the sole purpose of proving people did stuff.  
On a side note... these are the writeups for the few questions we managed to complete.  
Side note x2: I don't think my team mates are going to add to this anymore but I'm going to also add in the questions that got solved *after* pico ended and be sad about the simplicity of some of them *cough* milk. Everything before [this commit](https://github.com/vivian-dai/PicoCTF2021-Writeup/commit/f6cacbebed610f80202bca05bcf10650cca189db) was solved before pico ended (if it matters)

If you'd like to try some of these problems yourself, head on over to [PicoGym](https://play.picoctf.org/practice)!

For all binary exploitation problems in this writeup, you can find a more detailed explanation [here](https://github.com/vivian-dai/PicoCTF2021-Writeup/discussions/11)

## Questions

<details>

<summary>General Skills</summary>

|Question|Points|
|--------|------|
|[Obedient Cat](./General%20Skills/Obedient%20Cat/)|5|
|[Python Wrangling](./General%20Skills/Python%20Wrangling/)|10|
|[Wave a flag](./General%20Skills/Waving%20Flag/)|10|
|[Nice netcat...](./General%20Skills/Nice%20netcat/)|15|
|[Static ain't always noise](./General%20Skills/Static%20ain't%20always%20noise/)|20|
|[Tab, Tab, Attack](./General%20Skills/Tab%2C%20Tab%2C%20Attack/)|20|
|[Magikarp Ground Mission](./General%20Skills/Magikarp%20Ground%20Mission/)|30|

</details>

<details>

<summary>Cryptography</summary>

|Question|Points|
|--------|------|
|[Mod 26](./Cryptography/Mod%2026/)|10|
|[Mind your Ps and Qs](./Cryptography/Mind%20your%20Ps%20and%20Qs/)|20|
|[New Caesar](./Cryptography/New%20Caesar/)|60|
|[Dachshund Attacks](./Cryptography/Dachshund%20Attacks/)|80|
|[Pixelated](./Cryptography/Pixelated/)|100|
|[Play Nice](./Cryptography/Play%20Nice/)|110|
|[It is my Birthday 2](./Cryptography/It%20is%20my%20Birthday%202/)|170|
|[New Vignere](./Cryptography/New%20Vignere/)|300|

</details>

<details>

<summary>Web Exploitation</summary>

|Question|Points|
|--------|------|
|[Ancient History](./Web%20Exploitation/Ancient%20History/)|10|
|[GET aHEAD](./Web%20Exploitation/Get%20aHead/)|20|
|[Cookies](./Web%20Exploitation/Cookies/)|40|
|[Scavenger Hunt](./Web%20Exploitation/Scavenger%20Hunt/)|50|
|[Some Assembly Required 1](./Web%20Exploitation/Some%20Assembly%20Required%201/)|70|
|[It is my Birthday](./Web%20Exploitation/It%20is%20my%20Birthday/)|100|
|[Who are you?](./Web%20Exploitation/Who%20are%20you/)|100|
|[Most Cookies](./Web%20Exploitation/Most%20Cookies/)|150|

</details>

<details>

<summary>Forensics</summary>

|Question|Points|
|--------|------|
|[information](./Forensics/information/)|10|
|[Weird File](./Forensics/Weird%20File/)|20|
|[Matryoshka doll](./Forensics/Matryoshka%20doll/)|30|
|[tunn3l v1s10n](./Forensics/tunn3l%20v1s10n/)|40|
|[Wireshark doo dooo do doo...](./Forensics/Wireshark%20doo%20dooo%20do%20doo/)|50|
|[MacroHard WeakEdge](./Forensics/MacroHard%20WeakEdge/)|60|
|[Trivial Flag Transfer Protocol](./Forensics/Trivial%20Flag%20Transfer%20Protocol/)|90|
|[Disk, disk, sleuth!](./Forensics/Disk%2C%20disk%2C%20sleuth!/)|110|
|[Milkslap](./Forensics/Milkslap/)|120|
|[Disk, disk, sleuth! II](./Forensics/Disk%2C%20disk%2C%20sleuth!%20II/)|130|

</details>

<details>

<summary>Reverse Engineering</summary>

|Question|Points|
|--------|------|
|[Transformation](./Reverse%20Engineering/Transformation/)|20|
|[keygenme-py](./Reverse%20Engineering/keygenme-py/)|30|
|[crackme-py](./Reverse%20Engineering/crackme-py/)|30|
|[speeds and feeds](./Reverse%20Engineering/speeds%20and%20feeds/)|50|
|[Shop](./Reverse%20Engineering/Shop/)|50|

</details>

<details>

<summary>Binary Exploitation</summary>

|Question|Points|
|--------|------|
|[Stonks](./Binary%20Exploitation/Stonks/)|20|
|[What's your input](./Binary%20Exploitation/What's%20your%20input/)|50|

</details>