Whitehat Society, in collaboration with NUS Greyhats, is proud to present this year’s edition of Cross CTF (Website, Facebook), Singapore’s first 24H Capture-the-Flag security competition! This year, we expanded Cross CTF to turn it into a 24H CTF competition so that we can provide our participating hackers a full experience in both vulnerability exploitation and patching whilst minimizing the impact of luck.
The participants were first put through a gruelling 48 hour online qualifiers where we saw many teams hack through the night relentlessly for a spot at the finals. The online qualifiers then culminated in an intense 24H hackathon where the best of the best competed against time and their peers to clinch victory. It was certainly an exciting time for both us and the competitors as we saw the grit and sheer determination put out by the finalists as they worked tirelessly to retrieve the coveted flags.
As we neared the end of the competition, we saw many tired faces but the competitors refused to give up. For many, attempting the hardware challenge where they had to reverse engineer a given Arduino board was new and fresh but with the hacker mindset in place, the competitors relished the challenge and kept pressing till the end. At the end of the competition, we are glad that at least half of the competing teams managed to crack the first level of the hardware challenge while one team managed to solve level two of the hardware challenge.
In conclusion, Whitehat Society would like to congratulate the winners and all the participants who persevered till the very end. A very big thank you to our sponsors VantagePoint, Govtech, CSIT, Cyber Test Systems as well as to the helpers who ensured that the competition ran smoothly.
CROSS CTF CHAMPION
T0X1C V4P0R (Hwa Chong Institution)
OSI Layer 8 (NUS High School)
Ecks Dee (Anglo-Chinese School(Independent))
Sawadeeka (Nanyang Polytechnic)
Once again, we would like to thank all our participants and helpers and we hope that you have had a great time at Cross CTF this year. We know we certainly did and we will see you again next year!