SabantuyCTF 2021

Task sources & writeups from SabantuyCTF 2021 by C4T BuT S4D and Hackerdom.

Tasks

Tasks are stored in the tasks directory.

The task folder structure is:

• README.md contains all information about the task:

  • Header contains task info in form <difficulty> | <category> | <task_name>
  • Description section contains the public task description
  • Deploy section contains author's notes about deploy (more on that below)
  • Solution section contains a writeup info
  • Flag section contains the flag for this task

• deploy folder contains all files necessary to host a task. It always contains a docker-compose.yml file

• public folder contains all files that are to be given to participants

• dev folder contains all development files (not really needed, just in case)

Difficulty	Name	Category	Автор
easy	Simple cipher	Crypto	@keltecc
easy	Flag eater	Reverse	@revervand
easy	Quiz	Joy	@keltecc
easy	Puzzle	Joy	@revervand
easy	Super trace	Forensics	@revervand
easy	Shops site	Web	@jnovikov
medium	Periodic	Admin	@keltecc
medium	MDot	PPC	@renbou
medium	Book	Stego, Crypto	@keltecc
medium	Bliss	Stegano	@keltecc
medium	Hide and Seek	Web, Stego	@jnovikov
medium	CORSBypasser	Web	@renbou
hard	Backdoored	Forensics	@revervand
hard	Erawlam	Reverse	@revervand
hard	Vaccinated	Web, PPC	@jnovikov