Original fictional packet. No live host, no flag, and no scoreboard submission.
Printed window: 2026-10-12 18:00-21:00 UTC. Keep method notes in your own file. Do not post a solution. Do not send a message from this page.
| ID | Category | Value | State | Task |
|---|---|---|---|---|
| F-3 | Files | 50 | open | Read the local note. First line: the spare lamp is on shelf 2. |
| W-8 | Web | 50 | open | Read the saved request in this file. Do not send it. |
| C-2 | Cryptography | 100 | open | The note in this file is Base64. |
| L-6 | Forensics | 100 | open | Cite one line from the log in this file. |
| R-4 | Reverse Engineering | 200 | later | Follow a compare and a jump in assembly. Not required for First CTF. |
| P-9 | Binary exploitation | 300 | later | A write goes past the end of a buffer. Not required for First CTF. |
GET /lamp HTTP/1.1 Host: desk.example Accept: text/plain Connection: close
Transform: Base64. Note: bGFtcA==. Predicted text: lamp. Prediction source: Python 3 standard library during asset packaging.
The card states that these stamps are UTC.
L1 2026-10-12T18:00:01Z lamp off L2 2026-10-12T18:04:10Z switch found L3 2026-10-12T18:04:40Z lamp on
Use only this file and the lesson cards. A Host header is text. The scoreboard is out of scope.