pentester.land· Aug 7, 2024· by Eric Woodruff (@ericonidentity)

UnOAuthorized: Privilege Elevation Through Microsoft Applications

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Target Program: Microsoft (Entra ID / Azure AD)
🎯 Vulnerability: OAuth 2.0 / JWT Authentication Bypass
💡 Defense Fix: Strictly verify JWT signatures on the backend, enforce state parameter validation, and reject 'alg: none'.
#Cloud#Privilege escalation