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by dsr_
635 days ago
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If you were using a dial-up modem and sending raw data -- extremely common -- then sending +++ATH0 would cause most modems to hang up. If you could get that sent over to someone else, their session would be abruptly terminated. (Hayes patented requiring a no-data-sent time between the +++ and the ATH0. Avoiding the patent but being otherwise compatible introduced the vulnerability. In-band signalling is usually bad.) |
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