Threat Modeling for Development Teams
Intermediate75 min5 objectives

Threat Modeling for Development Teams

Complete Threat Modeling for Development Teams in a deterministic practice workspace without depending on unavailable host, cloud, hardware, desktop, or multi-node infrastructure.

Briefing

### Scenario You are a general practitioner handling a realistic client engagement. For Threat Modeling for Development Teams, the client has provided a staging environment that mirrors production but is isolated to this lab. Your task is to demonstrate the core technique on the local target without touching external systems. The scenario is intentionally scoped to what you can verify inside the container. ### Environment and scope Use the Ubuntu 22.04 practice container. Working directory is `/home/student/lab-work` (create it with `mkdir -p`). Target is `127.0.0.1` and `127.0.0.1:8080` where a `python3 -m http.server` or service-specific daemon runs. Install only needed tools via `sudo apt-get update && sudo apt-get install -y curl, python3, nmap, openssl` then verify with `curl --version && python3 --version`. Credentials: `student:lab123` with `sudo` (created via `useradd` + `chpasswd` + `sudoers.d` as in `labs.service.ts:554`). Do not scan or query outside 127.0.0.0/8 or lab-work. Scope is strictly container-only; no external cloud, hardware, or nested container engines. ### Mission objective For Threat Modeling for Development Teams: install and verify tooling, prepare the local target (`127.0.0.1 and /home/student/lab-work`), execute the technique step-by-step, and collect evidence. Each walkthrough step produces a verifiable artifact (file, command output, or service state) that you will cite in your submission. ### Success criteria You have completed the lab when: - Tooling verification passes (`curl --version && python3 --version` returns expected version without error) - Local target is running and responds (`curl -s http://127.0.0.1:8080/` or `dig @127.0.0.1` or `tshark -r` shows expected output) - `solution.md` in `lab-work` documents each step's exact command, raw output excerpt, and your interpretation (what the output proves) - All flag answers are direct values from your local output (e.g., version string, status code, IP, header name) and no external hosts were targeted (`history | grep -E "nmap|dig|tshark|openssl|nikto|curl"` shows only 127.0.0.1) Runtime mode: portable artifact validation

Objectives

  • 1Prepare workspace and verify tooling
  • 2Prepare local target for Threat Modeling for Development Teams
  • 3Execute Threat Modeling for Development Teams technique
  • 4Capture evidence
  • 5Complete DFD Creator
  • 6Complete STRIDE Applicator
  • 7Tune and interpret
  • 8Compile and verify submission

Flags

DFD Creator+200 pts

Submit the synthesized artifact value for DFD Creator (e.g., IP 127.0.0.2 or zone name) as verified by dig or cat /etc/bind/.

STRIDE Applicator+200 pts

Submit the verifiable output value for STRIDE Applicator as produced by the local tool on 127.0.0.1 (e.g., version, status, IP, or header).

Attack Tree Builder+200 pts

Submit the verifiable output value for Attack Tree Builder as produced by the local tool on 127.0.0.1 (e.g., version, status, IP, or header).

Mitigation Designer+200 pts

Submit the verifiable output value for Mitigation Designer as produced by the local tool on 127.0.0.1 (e.g., version, status, IP, or header).

Trust Boundary Mapper+150 pts

Submit the verifiable output value for Trust Boundary Mapper as produced by the local tool on 127.0.0.1 (e.g., version, status, IP, or header).

Deploy Lab — 30sCreate Free Account