Challenge Information

CTF Overview

CTF 2021

Date and Time :

12 November 2021, 6:00PM HKT to

14 November 2021, 6:00PM HKT

(The system will operate for 48 hours, participant can access anytime during the contest)

Contest Format :

This is a Jeopardy-style online CTF Contest. Participant will get a score after solving the challenges during the Contest.

Registration Deadline :

31 October 2021 (The Applicant’s registration will not be considered after the deadline)

*

The final result of the contest will also be published on CTFtime  https://ctftime.org/event/1432

learning_outcome

Learning Outcome Through the Contest

1. Creative thinking

2. Computer security concept, e.g. reverse engineering

3. Networking, e.g, TCP/IP, HTTP

4. Mathematics of cryptography

5. Programming concept and language, e.g. Python, JavaScript, Assembly, Structured Query Language (SQL), HTML

6. Internet search skill

Type of Challenges and Samples
Category Type
sample
Participation Cat

Categories

The Contest is divided into 3 categories:

Secondary School

  • For all student of secondary school in Hong Kong

Tertiary Institutions

  • For all full-time students in Diploma, Higher Diploma, Associate Degree and Bachelor Degree of universities or colleges in Hong Kong

Open Category

  • For all residents of Hong Kong or holder of valid working or study visa of Hong Kong

The Contest is a team competition, with each team making up of one to four members. In the Secondary School category, all team members must be from the same school. Each participant can enrol to only one of the categories and should submit only one entry. Participants shall agree and abide by all the terms and conditions, and rules of the Contest.

Team Name

All the team names will consist of 2 parts (1) Team code; (2) Team name, which would be the name of school/institutions or any self-defined names. The naming convention of each category are shown below

  1. Secondary School
    • Assigned by Organiser
    • Naming convention is {Team Code} – {School name of the members}
    • E.g. S0001 – Tsuen Wan East Secondary School
  1. Tertiary Institution
    • Assigned by Organiser
    • Naming convention is {Team Code} – {Institution name of each member}
    • E.g. T0001 – CUHK, PolyU, AbcdU
  1. Open Category
    • Self-defined name in English with maximum 50 characters
    • Naming convention is {Team Code} – {self-defined name}
    • E.g. O0001 – HK CTFMan

The Organisers reserve the right to substitute any name with another name at any time without prior notice.

Contest Image
Write-up

Proof of Answer (Write-up)

The top 5 teams of each category are required to submit the proof of answer (write-up) of 3 solved challenges selected by the Organisers. The Organisers will verify the accuracy while confirming the final ranking.

Rules
General
  • Each team should include maximum of 4 team members (i.e. 1 – 4 members). All team members must fulfil the entry requirements stated in the Eligibility.
  • The following parties are not eligible to join the contest
    • The representatives of Organising Committee
    • The members of Vetting Committee of the HKCERT Challenge Writing Contest 2021
    • The winners of HKCERT Challenge Writing Contest 2021
    • The supplier or members of project team of this contest
  • The top five teams of each category are required to submit the write-up as specified under the “Write-up” section.
  • After completing the 48 hours’ Contest, the top three teams of each category who have the highest scores and the write-ups confirmed by the Organisers will win the Contest. If same scores, the team that has reached the score in the shortest time will win the Contest.
  • If any issues occur during the Contest, participants shall report them to the Organisers immediately.
  • Don't attack the CTF platform, such as:
    • Modify the scoreboard;
    • Generate excessive load;
    • Launch denial of service attack;
    • Don't attack any machine or service other than the designated ones.
  • No social engineering attack.
  • Don’t cheat or interrupt the Contest, such as:
    • Share flags;
    • Ask for flags;
    • Delete flags;
    • Intentionally prevent other teams from submitting flags.
  • In the chat room:
    • Don’t send any message which contains violent, obscene or indecent content.
    • Don’t upload any file which infringes any copyrights and intellectual property rights.
  • Do not share any content or details of the CTF challenges with anyone before the end of the contest.
  • Any abuse or violation of the Rules will result in penalty as stated in the Terms and Conditions.
Rule
Rules
Terms and conditions

General Terms and Conditions

General Terms and Conditions for the Capture The Flag (CTF 2021) event organised by HKCERT

1. General
  • The participating teams should abide to these Terms and Conditions and the Rules of the Contest. The Organisers reserve the right to penalise team members for noncompliance with suspension of access or disqualification. The related teams and their members shall not raise objection.
  • Each participating team will be named as per the rule specified under the “Team Name” section. The Organisers reserve the right to substitute any name with another name at any time without prior notice. The participants shall not raise objection.
  • The whole team is disqualified if any member of the team is not eligible.
  • All works of the team must be contributed by eligible members of the team.
  • The team should notify the Organisers of any change in team members immediately. The Organisers will verify the identity of the winning team members when confirming their award.
  • The Organisers may invite teams from other countries / regions to compete in the platform. The invited teams are solely for participation purpose and would not be ranked and be awarded any prizes. The participants shall not raise objection.
  • The final result of the contest will be published on https://ctftime.org. The participants shall not raise objection.
  • The Organisers reserve the right to substitute any prize with another prize at any time without prior notice.
  • The Organisers reserve the right to amend the Rules from time to time and inform the participants.
Basic Computer Requirement

A computer with web browser

Useful Tools

1. Desktop
Type
Tool
Compression utilities
Any Zip tools
File editor
Any text editor
File editor
Any Hex editor
File viewer
Any image viewer
File viewer
Any PDF viewer
Network utilities
Ncat
Network utilities
Nmap
Network utilities
Wireshark
Network utilities
Burp suite
Password crack utilities
Any password crack tool
Terminal emulator
Putty

2. Online