Individual skill

saml-sso-assertion-attacks

SAML SSO assertion attack playbook. Use when testing signature validation, assertion wrapping, audience restrictions, ACS handling, XML trust boundaries, and enterprise SSO flaws.

skills/saml-sso-assertion-attacks/SKILL.md

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# SKILL: SAML SSO and Assertion Attacks — Signature Validation, Binding, and Trust Confusion

> **AI LOAD INSTRUCTION**: Use this skill when the target uses SAML-based SSO and you need to validate assertion trust: signature coverage, audience and recipient checks, ACS handling, XML parsing weaknesses, and IdP/SP confusion.

## 1. WHEN TO LOAD THIS SKILL

Load when:

- Enterprise SSO uses SAML requests or responses
- You see `SAMLRequest`, `SAMLResponse`, XML assertions, or ACS endpoints
- Login flows involve an external IdP and browser POST/redirect binding

## 2. HIGH-VALUE MISCONFIGURATION CHECKS