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All labs/skf-ssti

Web

OWASP SKF Server-Side Template Injection

A Python 2 Flask application whose 404 page pastes the requested URL into a Jinja2 template string and renders it.

Not startedDockercommit 6f2863dx86_64 · aarch64Secret

Objective

Inject a Jinja2 expression through the URL and escalate it to run a command on the server (server-side template injection).

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/skf-ssti && cd skf-ssti && 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: Medium
Evidence: Secret
Runtime: Docker
Runs on: x86_64, aarch64
Commit: 6f2863d
Repository: CyberCTF/skf-ssti