News loading...
Latest news
forens/Tracem 21736054676

Do not bruteforce flag submissions for forens/Tracem 2. We've just noticed a large number of submission attempts from some teams. Any teams with >100 attempts on that challenge will be asked for a qualifying (non-cheese) writeup before event end in order to maintain prize eligibility.

misc/prime5 hint1736035427

Hints have been added for misc/prime5.

crypto/SPHINCS+ dist note1736024894

The .gdbhistory file in crypto/SPHINCS+ was only included by accident and is not relevant to the solution. The challenge does not require any binary exploitation.

net/NetHog: hint1736020836

I do not like the bits that fail, But with this code, you will prevail! Fix the errors, it’s not so tough— With ****, you’ll have enough!

osint: where's bobby now up1735999983

New osint challenges just dropped!!

osint/fuel deal: Up Again1735996974

The challenge is now available to solve!

osint/fuel deal: Suspended Temporarily1735993667

The challenge is disabled temporarily! We apologise for any inconvenience.

web/Bad Todo: Dockerfile added1735971622

Added a Dockerfile to files for this challenge since the infra is rocky

web/bad-todo: server stability1735969314

A patch was made to hopefully keep the server up. If it's still coming down, let us know. (The change is also in the dist files)

rev/?????: new challenge?1735968641

Has this challenge always been here? Or did it just arrive?

rf/dotdotdot: file updated.1735961153

File has been updated for rf/dotdotdot to be clearer and remove the stutter at the end.

crypto/kittycrypt: file change1735960705

example input/output & flag output have been updated to solve the similar-length issue. If you previously downloaded the files, you will need to re-download them.

pwn/MyFiles: clarification1735958831

Clarification about invite codes: The invite code on remote and in the files are intentionally not the same invite code.

web/political: Admin bot fixed1735955205

Admin bot has been fixed on infrastructure (no files were changed) and now works. Please connect with the new port (1337).

web/political: bot files updated1735951317

Fixed a typo in the distributed bot.js file which was only fixed on remote.

Format Clarification- OSINT 11735950820

Hi everyone! I would like to clarify the format for Checking Out of Winter. It's no longer case sensitive and if there is a special symbol like '&' please replace it with 'and'.

Thank you for solving the challenge and sorry for any inconvenience!

IrisCTF 20251735345084

This year's event starts 2025.01.04 (Jan 4th) at 00:00 UTC and will last for 48 hours. Happy hacking!