README
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10: Security — Attack Prevention
Non-UI · No infrastructure needed · Standalone
Live demonstrations of real JWT attacks and OneAuth's defenses:
algorithm confusion (CVE-2015-9235), alg:none, cross-app token
forgery, and JWKS leak prevention. Each attack runs end-to-end against
the strict middleware so you see both attack and defense fire.
Two-process architecture
main.go boots:
- An auth/JWKS server on
:8081(/apps/register,/.well-known/jwks.json) - A protected resource on
:8082validating with the strict middleware
In --serve mode you can fuzz the resource endpoint with crafted
tokens and verify the middleware blocks them in your environment too.
Quick start
make demo # interactive walkthrough
make serve # auth :8081, resource :8082
# Fuzz it yourself
curl -s http://localhost:8082/resource -H "Authorization: Bearer <crafted-token>"
See WALKTHROUGH.md for the full step-by-step.
Targets
make … |
What |
|---|---|
demo (default) |
Walkthrough with TUI renderer |
demo-plain |
Plain renderer |
demo-ci |
Non-interactive |
serve |
Bind AS + RS on real ports |
walkthrough |
Regenerate WALKTHROUGH.md |
End of the journey
You've completed all 10 examples. See ../README.md for the full
learning path or jump back to 01.
Documentation
¶
Overview ¶
Example 10: Security — Attack Prevention.
Demonstrates real attacks against JWT-based auth and OneAuth's defenses: algorithm confusion (CVE-2015-9235), alg:none, cross-app forgery, and JWKS leak prevention.
Two-process architecture:
make serve # auth + JWKS :8081, protected resource :8082 make demo # walkthrough that drives both
In --serve mode you can fuzz the resource endpoint with crafted tokens to verify the middleware blocks them in your environment too:
curl http://localhost:8082/resource -H "Authorization: Bearer <crafted-token>"
Source Files