CTF

CTF stands for Capture The Flag. It is a kind of information security competition

In CTF competitions, teams or individuals compete to either attack or defend computer systems or networks. CTF contests are usually designed to serve as an educational exercise to give participants experience in securing a machine, as well as conducting and reacting to the sort of attacks found in the real world.
CTFs are events that are usually hosted at information security conferences, including the various BSides events. CTFs can also be held as an online competition, or as a competition at school or university.
CTF competitions touch on many aspects of information security, such as penetration testing, reverse engineering, cryptography, and forensics. They provide participants with a means of learning and practicing skills, as well as a source for entertainment.

Jeopardy-style CTFs has a couple of questions (tasks) in range of categories. For example, Web, Forensic, Crypto, Binary or something else. Team can gain some points for every solved task. More points for more complicated tasks usually. The next task in chain can be opened only after some team solve previous task. Then the game time is over sum of points shows you a CTF winner. Tasks in Jeopardy-style CTF usually have different score depending on the difficulty. The next task in chain can be opened only after some team solve previous task.

Attack-Defense is a special kind of competition where each team has its own network(or only one host) with vulnerable services. The teams need to attack other team’s hosts and at the same time protect their own from the attacks of other teams. Usually, there is a time limit for Attack-Defense CTFs. The team with the highest score wins.

Mixed CTFs combine both Jeopardy and Attack-Defense styles. Usually, there are several services available for the teams to attack, and some challenges to be solved. The team with the highest score wins.

⛳️ CTF - Capture The Flag

MIT License

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