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Trust the Token

Trust the Token

0 teams solved

300 pts

Our API trusts whatever this token says. An attacker sent it and became admin. Decode it: the attacker left a note.

eyJhbGciOiJub25lIiwidHlwIjoiSldUIn0.eyJzdWIiOiJhbGljZSIsInJvbGUiOiJhZG1pbiIsIm5vdGUiOiJjdGZib3h7YWxnX25vbmVfaXNfbm90X2Ffc2lnbmF0dXJlfSJ9.

Bonus question for your team (no points): why was the server wrong to accept it?

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