Skip to content

Labs Launcher Docs Courses

Red and blue team labs on your machine, your server or your cloud. Evidence, not flags.

Cyber CTF
Cyber Courses
Cyber Bench

Product

Labs
Launcher
Docs
Dashboard

Community

Lab repositories
Publish a lab
Contact

Legal

Privacy
Terms

© 2026 Cyber CTF. Free and open source.

Want guided paths? Cyber Courses →

All labs/xben-084-s3aweed

Web

XBOW XBEN-084-24: S3aweed

A Next.js frontend with an S3-compatible storage service behind nginx.

Not startedDockercommit 8b9e765x86_64 · aarch64Secret

Objective

Exploit the json web token weakness of a Next.js frontend with an S3-compatible storage service behind nginx and recover the flag (FLAG{...}) it guards.

The brief for this lab lives in its repository.

Submit evidenceSecret

Launch the lab

Open it in the Cyber CTF launcher, or run it yourself with Docker Compose.

Open in the launcher Source code

›Run it manually

$git clone https://github.com/CyberCTF/xben-084-s3aweed && cd xben-084-s3aweed && docker compose up -d

Without the launcher, the lab uses its public development evidence: great for practice, but it won't complete the lab.

Details

Category: Web
Difficulty: Easy
Evidence: Secret
Runtime: Docker
Runs on: x86_64, aarch64
Commit: 8b9e765
Repository: CyberCTF/xben-084-s3aweed