X-CTF 2016 is a cyber security competition by NUS Greyhats that will be held in NUS School of Computing (SoC) on 18th June 2016. In the competition, student teams from various tertiary institutions will compete to solve challenges which are set by an independent body.
The online qualifiers for X-CTF 2016 took place over the weekend on 9 April 2016 to 10 April 2016. 22 Teams were qualified as a result.
More information can be found here.
Many people have been asking for write ups to the challenges in X-CTF 2016. We’ll be posting the write ups to challenges incrementally over here, so do check back for updates.
Challenge: xuehui
Difficulty: Easy
Points: 5
Write up: here
Challenge: Fact0r!z3
Difficulty: Easy
Points: 7
Write up: quanyang.github.io
Challenge: Fact0r!z3_aga!n
Difficulty: Moderate
Points: 15
Write up: quanyang.github.io
Challenge: b0verfl0w
Difficulty: Moderate
Points: 15
Write up: quanyang.github.io
Challenge: Worm
Difficulty: Very Hard
Points: 40
Write up: VXSecurity.sg
Challenge: The Snek
Difficulty: Hard
Points: 20
Write up: nandynarwhals.org
More will be posted soon.