The XSS Rat
CWAP · Module 09 — JWT & Authentication

Attack 1 — alg:none unsigned bypass

Animated, step-by-step: how a server that reads its algorithm from the token hands you an admin session.
Module 09JWTAuth bypassCritical
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◤ Attacker workstation

🐀
you
idle
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◤ On the wire

◤ Server

key material
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waiting
attacker
server
hunter@cwap — bash
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