Security Fundamentals

Structured security education — networking, cryptography, core tools, and career guidance. The bridge between curious beginner and working professional.

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February· 1 post

Make the Server Do Your Dirty Work — What is SSRF?

Security Fundamentals

Feb 26, 202619 min read

Make the Server Do Your Dirty Work — What is SSRF?

SSRF is one of the most dangerous vulnerabilities in the cloud world. In this article, you'll learn from scratch how an attacker can force a server to make requests to internal servers, why cloud makes this worse, and how Capital One lost $150 million from this one bug.

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