Other nomination

Exploiting Static Site Generators: When Static Is Not Actually Static

Netlify's IPX image optimizer built the upstream URL from the attacker-controlled X-Forwarded-Proto header, so a value such as https://evil.com/? redirected the fetch off-site and skipped the host allowlist entirely. Because the library accepts SVG, attacker content is proxied and cached under the victim's own origin.

Record

Published by

assetnote.io

In the archive

• Nominated for the 2022 Top 10 Web Hacking Techniques

Tags

• ssrf
• filter-bypass
• cdn
• xss
• nextjs
• nodejs
• cache-poisoning
• case-study
• owasp-a03-2021
• owasp-a05-2021
• owasp-a10-2021

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