webPromedium

Lab 118 — FlowDesk — Predictable Password Reset Token

hackadvisor

Task: FlowDesk project management SaaS with password reset feature generating tokens as MD5(unix_timestamp). Solution: triggered reset for own account, discovered token = MD5(timestamp) via local mailbox, predicted admin reset token by timestamp, took over admin account, retrieved flag from admin settings.

$ ls tags/ techniques/
admin_account_takeovertimestamp_based_token_predictionmd5_hash_reversallocal_mailbox_inspection

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