Issue dossier

Cryptax documents extracting and decrypting the flag database through the MicroPython filesystem rather than solving every challenge through the intended path.

A linkable camp-impact record with badge context, severity, evidence confidence, and source notes.

Back to issues index

attendee reverse-engineering shortcut · attendee writeup · documented

The record keeps this as a CTF-solving and archive detail rather than treating it as a badge defect or official intended workflow.

Badge
BSides Kristiansand 2025 Sykt Badge
Category
attendee reverse-engineering shortcut
Severity
note
Confidence
attendee writeup
Status
documented
Timeframe
post-event CTF write-up
Source note
Cryptax BSides Kristiansand Badge CTF 2025 write-up.

Evidence

Related Resources

Source trail

Evidence Sources

Cryptax · retrieved 2026-05-15

BSides Kristiansand Badge CTF 2025

Attendee technical source for RP2040/MicroPython evidence, front LEDs, USB connector, exposed pins, battery holder, button, Morse-code markings, USB ACM serial access, Wi-Fi AP, embedded web server, challenge pages, REPL, filesystem, and encrypted flag database behavior.

Badge: BSides Kristiansand 2025 Sykt Badge