This is the landing page of the “Escuela de CTFs@UZ”, which has
started as an Innovation Teaching Project at the University of Zaragoza. Here you will
find several challenges and write-ups in different common CTF
categories. For each category, you have a post explaining the basics and
a write-up to explain how to solve each of the challenges presented
here.
TL; DR
Link to the CTFd
platform
Rules of participation:
- You need a registered user to participate.
- Only the registration of emails from
unizar.es
is allowed.
- Only individual participation is allowed.
- Each user will need an individual token for registration. To get
your token, fill out this
form and talk to this
Telegram bot.
- Attacks on the CTF infrastructure are NOT ALLOWED.
The users involved will be banned.
- It is NOT ALLOWED to share flags between
participants.
Introduction
Cybersecurity, one of the most important challenges of our era, is a
completely transversal field since it affects any type of system and
information technology. This teaching innovation project establishes a
series of lessons with theoretical-practical content complemented by
lessons with purely practical content to provide a solid foundation of
knowledge of different branches of cybersecurity through learning
techniques based on educational gamification. Specifically, various
monthly activities are carried out during the academic year following
the Capture The Flag format, which are competitions that allow
testing the technical abilities of participants in different fields of
cybersecurity. These activities will be complemented with an initial CTF
(so that the participating students know the mechanics of work) and a
final CTF (to evaluate the progression of the students). In addition to
acquiring skills and abilities related to cybersecurity, this project
improves other transversal skills of students such as teamwork,
creativity and communication skills.
Aims / Goals
The main objectives of this project are the following:
- Improve basic cybersecurity skills in different domains.
- Improve teamwork and communication skills.
This project is also aligned with the following Sustainable
Development Goals:
- Goal 4: Ensure inclusive and equitable quality education and
promote lifelong learning opportunities for all. Specifically,
it will contribute to the following goals of this SDG:
- 4.3 By 2030, ensure equal access for all women and
men to affordable and quality technical, vocational and tertiary
education, including university.
- 4.4 By 2030, substantially increase the number of
youth and adults who have relevant skills, including technical and
vocational skills, for employment, decent jobs and
entrepreneurship.
- Goal 9: Build resilient infrastructure, promote inclusive
and sustainable industrialization and foster innovation.
Specifically, it will contribute to the following goals of this SDG:
- 9.1 Develop quality, reliable, sustainable and
resilient infrastructure, including regional and transborder
infrastructure, to support economic development and human well-being,
with a focus on affordable and equitable access for all.
Planned Sessions (course
2025/26)
- September 19, 2025:
- CTF 101 – start of the course
- Tool session
- September 25, 2025: CTF – initial CTF of the
course
- October 24, 2025: Web
- November 14, 2025: Stego/Crypto
- November 28, 2025: Forensics
- December 11, 2025: CTF RODEO
- January 23, 2026: Pentesting
- February 13, 2026: Networking
- March 13, 2026: RE/Pwn tools
- April 10, 2026: OSINT
- May 15, 2026: CTF – end of the course
General CTFs
Course 2024/2025
Course 2023/2024
Course 2022/2023
Course 2021/2022
License
All the material provided in this webpage is under CC BY-NC-SA
4.0 license.
Authors
Last Update
- November 1, 2024: Added planned sessions for course 2024/2025
- December 19, 2022: Initial creation of the website