Sudo Override

NJACK CSEC — Fresher CTF

A 7-day, beginner-friendly capture-the-flag for CSEC freshers. Two tracks, one scoreboard. No experience needed — every challenge tells you what to do and what "done" looks like.

Runs Aug 30 – Sep 5, 2026. A new day of challenges unlocks every morning; submissions close Saturday night.

Runs Aug 30 to Sep 5, 2026. A new day of challenges unlocks every morning at 09:00 IST; submissions close Saturday night.

Flags always look like NJACK{...} unless a task says it's self-graded.

New to this? Start with the workshop material: CSEC Hello World 2026.

Track A — Networks

The web, the wire, and the packets.

Web basics · App security · Cryptography · Forensics · DNS · Recon

Track B — Computers

Source to binary, and back again.

ELF & memory · OS & syscalls · Disassembly · Reversing · Binary exploitation

Stuck for 10–15 minutes? Ask a mentor for a hint. That's the point.