CTFDBSE Monthly #1: Warm-up › Web

The token that trusts itself 300 pts · Hard

A vendor's API issued this token to a guest account. Read what it trusts:

eyJhbGciOiJub25lIiwidHlwIjoiSldUIn0.eyJzdWIiOiJndWVzdCIsInJvbGUiOiJtZW1iZXIiLCJmbGFnIjoiZGJzZXthbGdfbm9uZV9pc19ub3RfYW5fYWxnfSIsImlhdCI6MTc4ODcwMDAwMH0.

The flag is inside.

Hint

Three parts separated by dots. The middle one is base64url-encoded JSON. The last one is missing for a reason.

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