Juice Shop Ssrf -

(Note: Exact path varies by version; check the challenge description in Juice Shop). SSRF is rarely an end in itself. In Juice Shop, it's a proof-of-concept, but in real systems, combine SSRF with other vulnerabilities: 1. Cloud Metadata Extraction If Juice Shop were deployed on AWS with a misconfigured IMDSv1:

Introduction: The Silent Proxy Server-Side Request Forgery (SSRF) is often called the "forgotten twin" of Cross-Site Request Forgery (CSRF). While CSRF tricks a user's browser , SSRF tricks the server itself . An SSRF vulnerability allows an attacker to induce the server to make HTTP requests to an arbitrary domain of the attacker's choosing.

http://localhost:3000/solve/challenge/ssrf juice shop ssrf

POST /api/image/uploads HTTP/1.1 Host: juice-shop.local Content-Type: application/json "url": "http://localhost:3000/some/path"

For defenders, the lesson is clear: . Validate the destination as if your internal network depends on it—because it does. This article is for educational purposes. Always test on systems you own or have explicit permission to test. (Note: Exact path varies by version; check the

"url": "file:///etc/passwd" Juice Shop's Node.js request module does follow file:// by default, but older urllib or curl wrappers do. Defenses: How to Kill SSRF Juice Shop is vulnerable by design. Here is how to fix it in production: 1. Allowlist, Never Blocklist const ALLOWED_DOMAINS = ['maps.googleapis.com', 'trusted-cdn.com']; const urlObj = new URL(userUrl); if (!ALLOWED_DOMAINS.includes(urlObj.hostname)) return res.status(403).send('Domain not allowed');

But the real SSRF is not directly in the Order ID. It's in the or "Complaint" feature, depending on the version. In the standard Juice Shop SSRF challenge, the vulnerable endpoint is: Cloud Metadata Extraction If Juice Shop were deployed

const dns = require('dns').promises; const ip = await dns.lookup(urlObj.hostname); if (isPrivateIP(ip.address)) throw new Error('Blocked'); The SSRF vulnerability in OWASP Juice Shop is small but elegant. It demonstrates a single line of missing validation leading to a complete breach of network segmentation. For penetration testers, mastering SSRF means understanding that the server is just another user—one with far more privileges.

Inspecting the network traffic reveals that the server makes a backend request to: https://maps.googleapis.com/maps/api/staticmap?center=...

Juice Shop downloads this image server-side and then serves it to the client. The parameter center (the address) is partially user-influenced via the order database.